bluuebunny/crossref_metadata_2025 huggingface dataset:
The Research on Rapid Design and Manufacture Method for Letters Product Based on RP Technology
Authors: Zhao Shuai , Zhang De Qiang , Hu Nu
Published: January 2014

In order to solve the problem that the design and manufacture method for letters product in traditional ways has a long period and high cost, a new design and manufacture method based on RP technology was proposed. Firstly, Rhinoceros software was used to design the initial model, and then the initial model was put into SolidWorks software for model processing. After that, the established model was put into RPdata software for data processing. Finally, by using RP450B rapid prototyping machine, a rapid prototype of the model was achieved. Through the study, some key problems such as model design, processing of model data and manufacturing process were discussed. The new design and manufacture method has greatly shortened the design and manufacture cycle of the letters product, and it provides the reference for the design and manufacture for other art works.
Key Technologies of Rapid Modeling for Additive Manufacturing
Authors: Liu Zhi Wei , Zhang Hai Ying
Published: January 2014

Faced with the increasingly fierce market competition, manufacturing needs to shorten the product development cycle, and Additive Manufacturing will be widely applied as it can greatly shorten the product development cycle. After years of development, Additive Manufacturing will face a good market prospect as the manufacturing equipment, materials and process have become more and more mature. However, modeling technology is always the bottleneck problem of the product development process, as it occupies most time of the product development. The aim of the paper is to illustrate how to improve the efficiency of modeling for additive manufacturing. As the the application conditions of Additive Manufacturing continues to be mature , rapid modeling technologies will be discussed in the paper, including hierarchical modeling ,standardized modeling and parametric modeling technology, which will lay the foundation for rapid modeling of product development. The method of comparative test verification is adopted in the paper, and the results show that rapid modeling technologies discussed in the paper can fully improve the efficiency of modeling for Additive Manufacturing.
Campus Souvenirs Design Research Based on Emotional Needs
Authors: Liu Xin Xiong , Gan Lin , Zhao Hai Ping
Published: January 2014

This paper discusses the concept of campus souvenirs and emotional needs, analyzed the classical campus souvenirs design case. In the proposed campus souvenirs design process, heterogeneous isomorphism principle are used to explain the interaction between the emotional demands design and process. Finally discusses the campus souvenirs design problems existing in the research and development trend
Flow-Oriented Collaborative Process Planning System
Authors: Su Ying Ying , Liang Di , Dong Hai
Published: January 2014

Computer Supported Cooperative Work (CSCW) has been considered as a promising approach for developing process planning systems and optimizing process plans. Process planning plays an important role in the computer integrated manufacturing environment. Process planning based on CSCW is inevitable for reducing manufacturing preparation time and costs through concurrent and collaborative engineering. In this research, two key technologies of data exchange method and data communication method are studied based on the analysis of structure and business flow for collaborative process planning. The collaborative process planning system has been developed and adopted to support collaboratively work.
Intention Bionic Principle of Automotive Body Shape Design
Authors: Fu Li Ming , Yu Hai Yang
Published: January 2014

This paper studied the process that how the automotive body shapes raise the psychological reflects and proposed an intention bionic principle to explain this mental process. Established the related model and used it to analyze the relationships between automotive body shape design and the psychological feelings of living organisms. Then, analyzed the automotive body characteristics of Audi A8 and Q5, as a further illustration of this principle. Thus, opened up a new research method and provided a new approach for the work of automotive body shape design.
Effect of NH4HCO3 Contents on the Microstructure of the Microwave Sintered Porous NiTi Alloys
Authors: Xu Ji Lin , Jin Xiao Fei , Luo Jun Ming , Liu Ai Hui
Published: January 2014

In this paper, the porous NiTi alloys were prepared by microwave sintering, and the effects of NH4HCO3contents on the microstructure of the porous NiTi alloys were studied. The microstructure of the porous NiTi alloys was investigated by optical microscopy, Archimedes drainage method, surface roughmeter and X-ray diffraction. The results showed that the porous NiTi alloys were mainly composed of NiTi, Ni3Ti, Ti2Ni and Ni, and the diffraction peaks of the non-equiatomic phases (Ni3Ti, Ti2Ni and Ni) increased with increasing the NH4HCO3contents. At the same time, the porosity, pore size and surface roughness of the porous NiTi alloys increased with the increase of the NH4HCO3contents.
Application Study of the Virtual Freeform in Product Development Design
Authors: Hu Rui Bo , Suo Xin Yu , Wang Kun Qian , Xu Ren Ping , Gao Zhen
Published: January 2014

In order to make the design of modern complex software support the multi-disciplinary optimization,realize its solving function,and confirm its comprehensive optimum scheme,We put forward a modeling method,which is combining the Freeform with surface design. Considered the characteristics of modern software design,we analyzed the important role that modern software played in the modeling process,studied the application process of modeling that combining freeform with the surface design.,and did the application of virtual design,for example,combined the technology of virtual claywith force feedback into the virtual design. Put the above method into the product design,and we confirmed that this technology can add or reduce the soil in accordance with the different demands, and is an effective method to solve the complex problems in the modeling process.
A Study of Application of Upholstered Furniture Design
Authors: Gao Zhen , Suo Xin Yu , Hu Rui Bo
Published: January 2014

the developing trend of upholstered furniture in years will be studied through the analysis of furniture aesthetic performance, combining personal designing case, applied human engineering, marketing, design methodology, graphics, statistics, Perceptive and cognitive principle in psychology in this thesis. Reference and relatively abundant, comprehensive support can be provided for designers through the value theory of aesthetic subject and object, which will improve the marketing competitiveness of independent research and development of China. This thesis also aims to light the law of upholstered furniture development. Such laws can explain how to adjust to the popular consumer demand under the current industry mode.
Adaptable Design Methodology of Heavy Duty Machine Tool for Green Remanufacturing
Authors: Cai Li Gang , Li Kai , Cheng Qiang , Qi Zhuo , Gu Pei Hua
Published: January 2014

In order to achieve the remanufacturers and utility extension of the old heavy-duty machine tool, an adaptable design method of the heavy machine tool that oriented to the green remanufacturing is proposed in this paper. The guiding ideology of the adaptable design is integrated into the green design and product development. The present status of research at home and abroad is summarized, and then the existing problems are analyzed. Axiomatic design is introduced to be the research principal line and the four design domains are extended to five ones including regeneration domain. By full analysis, the three future research directions including the adaptable modular design, the adaptable platform design and the adaptable interface design of the heavy-duty machine tool, are proactively introduced.
Wind, Thermal and Hydropower Joint Operation Benefit Analyzes Based on the Life Cycle Management
Authors: Tan Zhong Fu , Sun Lei , Li Huan Huan , Ju Li Wei , Chen Zhi Hong
Published: January 2014

Aimed to solve the abandoned wind problem and reduce CO2 emission in the power generation process, this paper put forward a thermal, wind power and pumped storage power station co-operation cost-benefit analysis model. And through a simulation example, found that using pumped storage power station to substitute thermal power as the alternate service for wind power, and absorb underused wind power, can reduce the use of fired units and increase the capacity of grid to absorb wind power, as well as reduce CO2 emission. Then through the sensitivity analysis, found that the amount of grid-connected wind power is a sensitive factor of CO2 emission reduction and the decrease of grid power purchase profit. So when grid implementing wind power grid connection, should use pumped storage power station as the wind power alternate service to promote wind power grid connection.
Research on Brittle Source of Airline Network
Authors: Du Jing , Zhu Jin Fu , Wu Wei Wei , Xu Shun Zhi
Published: January 2014

Brittle source is a necessary condition for a system to stimulate brittleness. This paper focuses on analyzing brittle source of airline network system, according to different degrees of impact the closed airport has for the entire airline network to classify the brittle source, in order to distinguish different airports, so as to effectively control the excitation of brittleness of the airline network.
Evaluation on Comprehensive Protective of Protective Engineering Based on Input-Output DEA Model of Two Goals
Authors: Liu Jian Yong , Wang Huai Xiao , Li Ling , Fu Cheng Qun
Published: January 2014

In order to solve the problem that the subjectivity of traditional evaluation method and difficulty of testing correlation on comprehensive protective of protective engineering, this message establishes the index system model of comprehensive protective of protective engineering and input-output DEA model of two goals. Based on this, the input-output DEA model of two goals is used to evaluate the comprehensive protective of protective engineering. The example shows that the method in this passage makes effort to compare the DMUs effectively and select the best DMU.
Shaanxi-Shehuo-Mashao-Mask-Based Office Supplies Design Studies
Authors: Xiao Meng , Chen Li Ling , Wang Xiao Ping
Published: January 2014

The Shaanxi-Shehuo-Mashao mask is one of the oldest masks in China, and it was a valuable folk art. It was designed and carved on Mashao, which is an everyday used item. Its famous for its vivid character, bright color and its extremely expressive and decorative. In order to better protect this folk art and blend it into modern life to make it more valuable, we should look deep into its connotation and pave a path of Chinese folk art design.
Data Acquisition and Quality Assurance Integration Platform Based on DPM
Authors: Wang Jian , He Wei Ping , He Yan Li , Li Xia Shuang , Guo Gai Fang
Published: January 2014

Direct Part Marking (DPM) is used for part identification and tracking. In order to avoid discrete information caused by quality data incompleteness or disorder in each stage of a product life cycle, especially for a large and complex product information, DPM is an effective method to ensure the security and traceability of the process quality status. Here describes a platform based on DPM data acquisition and quality assurance integration. The platform consists of data acquisition module and basic business functions; It builds semantic resource flexible service configuration framework, analyzes the discrete manufacturing resources meta-model relationship, defines semantic restful resource meta-model and uses the multi-view, multi-level, scalable manufacturing resource library. All of these are integrated in this platform. Through an experience of an enterprise, it is proved that the platform is feasible and configurable.
Forecast on China's New Energy Vehicle Market Demand
Authors: Shi Jian , Liu Bin , Huang Yong He , Hou Hua Liang
Published: January 2014

With the rapid development of new energy vehicle in China, the volume has been the hot topic in the fields of automotive industry. A series of subsidy and financial policies has been released by the government. Peoples in this industry care about the effective of the policies especially the new energy vehicles volume and market share in China. In this paper, we analysis the development experience of developed countries such as the US and Japan, and calculate the new energy vehicles volume and market share in China from 2015 to 2020 by model. Its more effective to the government department to draw a plan of new energy vehicle development blue print.
Application of BIM in Project Management
Authors: Huang Ke Wang
Published: January 2014

The paper focuses on the application of BIM in the different stages of the project, coordination implementation of the IPD and the information integration management of large project group. At the same time, the paper also puts forward the integration of BIM project document and project.
Enterprise's Brand and Products Shape-Designing DNA
Authors: Li You Sheng
Published: January 2014

In order to solve the consumer demand for product diversification, setting up enterprise brand awareness. DNA genetic regularity, movement process and the working principle of theory of key technology in its product design, patent technology, operation mechanism and the value of utility has certain opportunity, on product design, material, color, modelling function for DNA extraction, using the brand concept to shape and enhance brand image and product modeling design value.
The Empirical Analysis of Small and Medium Sized Pharmaceutical Enterprises Operating Performance and Debt Source Structure
Authors: Li Jian Jun
Published: January 2014

in this paper, take 30 enterprises from Shenzhen SME board and the GEM pharmaceutical industry as samples, using empirical methods to study the relationship between the pharmaceutical industry and business performance and debt source structure. The results showed that small and medium-sized pharmaceutical enterprises have a negative impact on business performance, and operating liabilities have a positive impact on business performance; compared with the small service enterprises, performance of small and medium-sized pharmaceutical enterprise is poor, because its operating liabilities rate is relatively low, and the financial leverage is higher. Therefore, when small and medium-sized pharmaceutical enterprise debt financing, financing should be appropriate for financial liabilities, and should strengthen the management of debt financing.
Microstructures and Properties of Abrasion-Resistant Cobalt-Base Alloy K-C20WN Prepared by Centrifugal Casting
Authors: Ren Shu Bin , Qi Jin Kun , Qu Xuan Hui
Published: January 2014

The abrasion-resistant cobalt-base alloy K-C20WN was prepared by centrifugal casting and the effects of centrifugal temperature and speed on the microstructures and the performances of the casting were researched. The results showed that the microstructures of the casting consist of the loose equiaxed crystal, the dense equiaxed crystal, and the columnar dendrite from outside to inside. The centrifugal pouring temperature and rotational speed affects the performances apparently. Low temperature and high rotational speed help to enhance comprehensive mechnical performances of the alloys. And the improvement mechanism was also discussed in this paper.
Evolution of Innovation Cooperation Networks in the Marine Industry
Authors: Qiu Feng Xia
Published: January 2014

This study aims to obtain the evolution of innovation cooperation by constructing and analysing patent cooperation networks for the field of Chinese marine industry. Total patents with universities, industries and research institutes are retrieved from SIPO patent database and patent networks are established by using social network analysis. Effects are found that firm-university-research institution innovation cooperation in the industry has been formed, but nodes have different cooperation preferences.
Research on the Terminal Aircraft Separations Based on the History Surveillance Data
Authors: Xia Zheng Hong , Pan Wei Jun , Kang Rui , Luo Xiao Lin
Published: January 2014

The contradictions between unreasonable terminal aircraft flight separation and rapidly increasing air traffic are prominent. Researches on the terminal control separation allowance are of vita importance to enhance aerodrome capacity and reduce fight delay. Based on the actual Airport Surveillance Radar (ASR) data of certain airport whose capacity was the third one of China, the terminal aircraft separations algorithm was proposed in this paper. The impact of aerodrome capacity, departure landing sequence and direction change of runway on flight separation were discussed.
Optimizing Method of Express Delivery Network and Vehicle Routes Based on Automatic Parcel Machine
Authors: Qin Yun Mei , Mao Hai Jun , Li Yu Hui
Published: January 2014

An express delivery mode based on automatic parcel machine (APM) is put forward and the delivery system is optimized in this paper. The optimization problem is described as a mathematical programming model, and the improved twice dynamic clustering algorithm and the C-W saving algorithm are developed for solving it. Obtained results show that the mode and the express delivery system have great practical application value and popularized significance.
Evaluating Public Perception for Environmental Attributes of the Zengcheng Greenway (Guangzhou)
Authors: Wu Juan Yu
Published: January 2014

As an important urban open green space system, greenway provides a place for people to play and leisure activities, which has ecological, recreational, cultural, aesthetic characteristics. This study investigates public perception toward environmental attributes of the greenway system in an urban setting. The goal of the study was to understand the perceived environmental quality of the Zengcheng greenway within diverse landscape elements composing the greenways main spatial and visual structure. We utilized public perceptual judgments as indicators of environmental quality, and referred to a psychophysical method to assess the environmental attributes of Zengcheng greenway. Through the investigation, including document analysis, the site exploration, questionnaire and interview, this paper reaches a conclusion whether the Zengcheng greenway meets the actual demands of practical use, therefore it comes up with scientific and practical suggestions for the design of greenway in the future.
Study on Community Residential Space with Block Unit Mixed Community Theory in Rapid Urbanization Region: Taking Xi'an Changning Newtown Community Planning as an Example
Authors: Hou Quan Hua , Liu Chen
Published: January 2014

The community planning of rapid urbanization area is a problem worth studying under the background of the urbanization at present. To explore the problem of the community existence during Chinese rapid urbanization, and to search for rational approaches to planning and design of community living space of rapid urbanization area are the main goal of this thesis. On the basis of the issues and characteristics of rapid urbanization area community and by analyzing the analogy, a set of method is summarized by the theory of block unit mixed community relying on the case studies.
Flow Comparison of the Traffic Model Based on Safe Driving
Authors: Pan Wei Jun , Huang Chen Yu
Published: January 2014

Based on the SDNS cellular automata (CA) traffic model, the safe driving CA model has been proposed by considering the condition of having a stationary vehicle ahead. In this paper, this model was improved by analyzing the condition of safe deceleration, and also another single lane traffic CA model emphasizing high safety was proposed. The new safe driving rule was introduced based on the ascertained deceleration and distance ahead. Numerical simulations have been carried out. The results indicate the increase of traffic flow and the stability of the whole system, and also reveal the presence of meta-stable state near the critical density.
Design and Simulation of Improved One-Dimensional Cellular Automaton Model
Authors: Kang Rui , Yang Kai
Published: January 2014

By analyzing the condition of safe deceleration, a new CA traffic model emphasizing high safety was simulated. In order to describe the impact of the safety deceleration on the model, using computer to design and implement safety deceleration CA model simulation program. Computer numerical simulations have been carried out. The flow-density diagrams indicate the increase of flow and the stability of the entire system, and show the presence of meta-stable state near the critical density. With the increase of safety deceleration probability, the traffic flow is higher than that with the former model in the situations of both mid density and mid-low density.
Risk-Based Approaches for the Remediation of a UST Site: A Case Study
Authors: Lien Bo Ren , Huang Wei Hsiang , Sheu Yih Terng , Lin Sun Long , Kao Chih Ming
Published: January 2014

Risk-based corrective action (RBCA) is a scientifically-accepted approach to remediate polluted sites. Under the RBCA approach, the risks to human health associated with polluted sites are assessed and appropriate remedial measures are taken to reduce risks. RBCA evaluations involve the use of risk models to assess health risks to different receptors. In Taiwan, the Soil and Groundwater Remediation Act was enforced in 2000. The government of Taiwan also use risk assessment protocols to obtain acceptable remediation goals for polluted sites with low risks. In this study, the application of risk assessment to derive remediation goals and develop remedial strategies at a fuel-oil spill site were performed. After the risk evaluation, the soil and groundwater remediation goals for total petroleum hydrocarbon (TPH), benzene, toluene, ethylbenzene, and xylenes (BTEX) were determined. The remediation levels meet with the requirements for minimum target risk levels (cancer risk = 1×10-6 and hazard quotient = 1). The developed risk-based cleanup goals are calculated based on actual land use and exposure pathways rather than on assumed maximum exposure. After the completion of RBCA process, the remediation cost can be significantly reduced. Based on the risk assessment results, source zone remediation, natural attenuation, and long term monitoring were recommended as the remediation strategies of the studied site to reduce risks to human health. Results from this study provide a streamlined process for future risk assessment work at petroleum-hydrocarbon polluted sites in Taiwan. RBCA is a sound and defensible basis for site closure, and it offers a more logical framework for making site closure decisions.
Urban Forms is Changing from Transport and Land Use
Authors: Li Chia Nung , Hsu Kuo Cheng , Lo Chien Wen , Hsieh Yi Kai
Published: January 2014

Urban forms are shaped under transport-land use connection. According to literature reviews, urban forms can be divided into six kinds from 1880 to 1990, traditional walking city, industrial transit city, automobile-oriented development city (compact or sprawl), transit-related development city and transit-oriented development city (TOD). Although many cities in the world had attempted to shape their urban forms like TOD in the 1990s, they didnt have definite goals and strategies to achieve it. On the other hand, there is neither systematic discussion nor comparative analysis concerning how to determine the original urban form of these cities. In this case, it is unlikely for them to become a TOD city in effective and suitable ways. As a sequence, this paper aims at reviewing literature , designing two sets of strategies to shape TOD urban form for policy-makers reference.
Ag-Loaded Wool Spherical-Like Bi2WO6 Nanoarchitectures Photocatalyst Degrade Pigments
Authors: Xia Jin Hong , Han Guo Cheng , Huang Guo Yin , Chen Ran
Published: January 2014

Wool spherical-like Bi2WO6 nanoarchitectures were synthesized by hydrothermal method with using bismuth nitrate and sodium tungstate as raw materials. Ag was deposited on the surface of Bi2WO6 by a photoreduction process. The as-prepared products were characterized by XRD, and TEM. The XRD results revealed that the products have neglectable change in crystal with or without Ag, but obvious change in shape and intensity with different hydrothermal process time and optimal time is 12 h at 180 C. The TEM results shown that 7 h was chose as optimal hydrothermal process time. Rhodamine (RhB) and Light Green SF Yellowish (Light green) were chose as objects to evaluate the photocatalytic activities of the products under different light irradiation. The results showed that Ag loading greatly improved the photocatalytic activity of Bi2WO6. Meanwhile, the source of light is a very important affected factor for the photocatalyst degradation, ultraviolet light has the best efficiency, but visible light was chose as the light source finally due to conservation of energy and efficiency. The dynamic behavior of Ag-loaded Bi2WO6 photocatalyst degradation of two pigments obeys pseudo-first-order kinetics at 298 K. The as-synthesized photocatalysts are stable for degradation of two pigments and can be easily recycled.
Species Composition and Succession Discipline on Lava Flow of Different Periods Volcano, Wudalianchi China
Authors: Huang Qing Yang , Wang Ji Feng , Zhu Dao Guang , Ni Hong Wei
Published: January 2014

By adopting the concept of space as a substitute for time, The species composition and succession discipline after the volcanic eruption of different historical period in Wudalianchi were studied, which were new volcano Huoshao Mountain, Laohei Mountain and old volcano East Jiaodebu Mountain, Wohu Mountain and North Gelaqiu Mountain. According to the result, there were 192 kinds of vascular plants occur in the restoration process of primary succession, which belonged to 50 families and 126 genera in the survey areas, and the number of family, genus, species of plants in the gathering progress of natural recovery succession were increased first and then decreased as time goes by in the volcano succession.
The Effects of Safety Deceleration Rule in Traffic System
Authors: Yang Kai
Published: January 2014

Deceleration has a great influence on the whole traffic flow in real traffic. Based on the SDNS cellular automaton (CA) traffic model, an improved single lane traffic model with considering the safe deceleration was proposed. The model not only simulated the interaction between vehicles, but also reproduced nonlinear phenomena which tallies with real traffic such as the synchronism flow and the metastable state. The model in this paper can reduce some vehicles to decelerate. Simulation is shown that the smaller thepis, the more remarkable the variation of the proportion of the vehicle is in the early stage.
Effect of Diagenesis on the Formation Effective Reservoirs in Volcanic Rocks of Xujiaweizi Faulted-Sag
Authors: Li Zhi Jun , Zhang Ying , Wang Xing Ming
Published: January 2014

The volcanic reservoir of Yingcheng Formation in Xujiaweizi Faulted-Sag of Songliao Basin was systematically studied by analyzing the data of the core and cast thin slice. It was founded out that all effective reservoir underwent six diagenetic stages. That is why porosity evolution and physical property of those rocks were different from each other. The organic acid dissolution and CO2-bearing acidulous water dissolution,was the most useful diagenesis to the formation of effective reservoirs, secondary porosity developed mostly in the silicic volcanic rocks, which were easily dissolved by organic acid. Primary porosity system, faults and fractures, top/bottom unconformity surfaces of volcanic rocks are the key factors to dissolution.
Crop Water Production Function of Processing Tomato (Solanum lycopersicum) under Regulated Deficit Irrigation
Authors: Zhang Heng Jia , Wen Ai Cun , Zhang Ji Dong
Published: January 2014

An experiment was conducted to determine the water sensitivity index (WSI) and water production function (WPF) of processing tomato under regulated deficit irrigation (RDI) in an arid environment. The WSI at different growth periods of processing tomato was maintained and a periodical WPF was established based on Jensen model. The maximum WSI was maintained at flowering with 0.8122 while the minimum was marked at seedling with 0.0589. In addition, WSI at full fruiting was much lower than at flowering but higher than at late fruiting. Therefore, processing tomato was extremely sensitive to water deficit at flowering and enough water should be applied to crops to maintain a high yield, while processing tomato was not sensitive to water deficit at seedling and a high level of water deficit could be reasonably controlled at this period through RDI without causing yield reduction.
Effect of Compatibilizer and Flexibilizer on the Mechanical Properties of Acrylonitrile-Butadiene-Styrene)/Poly(Methyl Methacrylate) Blends
Authors: Wang Shou Hai , Gao Jun , Fei Gu Ren , Zhang Ping , Huang Jun , Xu Li Li
Published: January 2014

Acrylonitrile-butadiene-styrene (ABS) / polymethyl methacrylate (PMMA) with the addition of maleic anhydride grafted polystyrene (KT-5) and polyolefin elastomer (POE) were melt processed in a co-rotating twin-screw extruder. The effect of KT-5 and POE content on the mechanical properties of ABS/PMMA was investigated. Experiment results indicate that KT-5 can improve the tensile strength and the composites are toughened effectively as the addition of POE. According to Orthogonal tests, it demonstrates that POE ha a greater effect on the blends than KT-5, and there exist no obvious interactivity between the two components.
Study on the Mechanical Properties and Surface Gloss of Acrylonitrile Butadiene-Styrene/Poly(Methyl Methacrylate)/Ethylene Methacrylate Copolymer (EMA) Composites
Authors: Wang Shou Hai , Gao Jun , Lin Shu Xia , Zhang Ping , Huang Jun , Xu Li Li
Published: January 2014

Ethylene methacrylate (EMA) copolymer toughened acrylonitrile-butadiene-styrene (ABS)/polymethyl methacrylate (PMMA) were prepared in a co-rotating twin-screw extruder. The effect of EMA on mechanical properties and surface gloss of ABS/PMMA blends was investigated. Experiment results show that the toughness of ABS/PMMA is improved effectively with the incorporation of EMA, while the tensile strength and glossiness decrease slightly. ABS/PMMA/EMA blends present optimum mechanical and luster properties when the content of EMA is 6wt%.
Refining Molten Steel with Argon Blowing by Metal Nozzle Mold Bottom
Authors: Shi Rong Gang , Wang Zhan Yong , Yang Sen Gai , Yan Xiu Ping
Published: January 2014

Abstract: this paper describes the main characteristics of bottom blowing argon, and by comparing forging adopting the mode of bottom blowing argon process of forging with not using the technology of forging the same time and the same kind of shape of ingot production the same in the forging crack, the results of the ultrasonic flaw detection, grain size, mechanical properties, gas content in liquid steel, the influence of the mold bottom blowing argon through the comparative analysis on the influence of the inclusions, the method of die bottom blowing argon can improve the quality of steel, It is worth promoting. And the principium of die bottom blowing argon is discussed.
Tensile Properties and Plasticity of Semi-Solid Cast 6061 Al Alloy at Elevated Temperatures
Authors: Songkuea Sukrit , Sripan Patcharee , Wisutmethangoon Sirikul , Wannasin Jessada , Plookphol Thawatchai
Published: January 2014

The purpose of this study was to investigate the tensile properties and plasticity of semi-solid 6061 Al alloy at room and elevated temperatures. The semi-solid 6061 alloy was produced by the Gas Induced Semi-Solid (GISS) technique followed by squeeze casting process. The conventional liquid squeeze cast (CLC) 6061 alloy was also fabricated for comparison. The tensile tests were performed at temperature of 25 °C, 100 °C and 175 °C. The experimental results showed that the UTS, 0.2% yield strength and % elongation at break of the SSM alloy are higher than those of the CLC one at all temperatures. Based on the simple flow law, σt=Kεtn , the strain hardening exponentnand the strength coefficientKof the SSM alloy are lower than those of the CLC. The SSM alloy demonstrates more plasticity than the CLC. The results may be attributed to the more globular structure of the SSM alloy.
Investigation of Microstructure and Mechanical Properties of Semi-Solid State Joining of SSM Aluminum Alloys
Authors: Petkhwan Apirit , Muangjunburee Prapas , Wannasin Jessada
Published: January 2014

In this research, the semi-solid state joining of SSM A356 aluminum alloy was investigated. The butt-joint of SSM A356 was heated by an induction heating coil to create a localized semisolid pool. Then a stirrer was applied into the joint seam in order to mix the weld metal. The accurate controlling of temperature during joining was measured. The effects of stirring rate on physical, macrostructure, microstructure and mechanical properties were studied. Experimental results showed that increase in stirring rates, the surface of the joint was smooth. The weld metal consisted of the globular microstructure and also voids. The density of weld metal zone increased by an appropriate stirring. The best tensile strength was achieved with 1750 rpm, 70 mm/min for 103.4 MPa.
Functional Polypropylene/High-Absorption Polyacrylate/Bletilla Striata Nonwoven Fabrics: Process and Characteristic Evaluations
Authors: Lin Jia Horng , Wu Zong Han , Chang Chiung Yun , Lu Chao Tsang , Lou Ching Wen
Published: January 2014

Natural plant extracts without non-toxic side effect and the relevant products are gaining popularity, and make natural medicines one option of health care. This study combines polypropylene (PP) fibers, high-absorption polyacrylate (HPA) fibers with weight ratios of 100/0, 90/10, and 80/20 wt % with a nonwoven manufacturing process to form PP/HPA nonwoven fabrics, after which the fabrics are immersed in a Bletilla striata (BS) extract, and then dried, yielding functional PP/HPA/BS nonwoven fabric. Stereomicroscopic observation, tensile strength test, tear strength test, and air permeability test are performed on the sample to evaluate the difference in mechanical properties before and after the immersion. In vitro test evaluates the biocompatibility of BC extract. The experimental results show that functional PP/HPA/BS nonwoven fabrics have optimal mechanical properties and an optimal content of 32.2 % BS extract when the nonwoven fabrics are made with an 80:20 ratio.
Preparation and Property Study of PTT/CAB Blend Fibers
Authors: Wang Li Yan , Li Guang , Yang Li Jun
Published: January 2014

Poly (trimethylene terephthalate) (PTT) /cellulose acetate butyrate (CAB) blend fibers were prepared through melt blending and spinning in this paper. The mechanical properties, dyeability, and hydroscopicity of PTT/CAB fibers were studied. The results indicated that the tensile strength of PTT / CAB blend fibers reduced slightly and the elongation at break increased with CAB content rising. And the dye uptake and moisture absorption percentage of PTT / CAB blend fibers increased as more CAB was added, i.e., in some degree, CAB added improved PTT fibers dyeability and hydroscopicity.
The Influence of Ti/N Ratio on the Effective Boron and Mechanical Properties of Low Carbon Boron Alloyed Bainitic Steel
Authors: Zhang Tao , Hou Hua Xing , Chen Jun Ping
Published: January 2014

The influence of Ti/N ratio on the effective boron and mechanical properties was investigated by analyzing data from low carbon boron alloyed bainitic steel plates. The result shows Ti/N ratio varies with effective boron value. Less than 50% effective boron was obtained when Ti/N ratio is below 3.3, nearly 90% effective boron is obtained when ratio Ti/N is more than 4; Adding enough Titanium is an effective and economic way to improve qualified ratio of bainitic steel plate. The Ti content between 0.010% and 0.030% does not have obvious effect on the toughness of the bainitic steel;
The Micro Crack Nucleation Rule and Fracture Behavior of Titanium Aluminum Alloy
Authors: Yi Xiang Bin , Rui Zhi Yuan , Feng Rui Cheng , Yan Chang Feng , Zuo Yan Rui
Published: January 2014

Study on tensile fracture behavior of TiAl alloy by means of the macro fracture theory and micro dislocation block theory. A quantitative analysis method of micro crack nucleation and crack mechanism for TiAl alloy is performed with the help of the dislocation distribution model, and is based on the strain energy density theory and criterion, a crack criterion of TiAl alloy instability is established. The experimental results confirmed that the dislocation model and S criterion on tensile fracture behavior of TiAl alloys are effective.
Matching Principle of Material Selection in Product Design
Authors: Han Ji An , Li Feng , Xia Hui Chao
Published: January 2014

Material selection means to select some kind of material which can both meet the structural requirements and reduce cost so as to get the greatest economic interest. This selected material should also be suitable to the environmental conditions and accord with the resources supply. Compared with the other aspects of products design, material selection is the most essential part. Material selection for design is a complex process. It is necessary to construct a system for matching principles of material selection in product design, to ensure it to reach an appropriate goal. This system requires the designer to take into consideration social, economic and technological factors from the perspective of the design itself. It also requires the designer to take the initiative to select, so as to reach the goal of Shi.
Hot Working Manufacturing Process of Large Mine-Used Rotary KilnRolling Ring Forgings
Authors: Shi Rong Gang , Jiang Shu Jie , Wang Zhan Yong , Yan Xiu Ping
Published: January 2014

Bearing the gravity of rotary kiln barrel and the pressure between riding wheel and rolling ring, the surface defects appeared on casting large rotary kiln rolling ring, which caused large maintenance cost. While the life cycle of the rolling ring would be prolonged by using forging instead. The manufacture processing of large rotary kiln rolling ring was explored for changing casting to forging. The reasonable processing of smelting, forging and heat treatment were established.
Mechanical Behaviors and Thermoforming Features of PMMA Used In-Mold Decoration
Authors: Chen Song Mao , Zhang Sai Jun
Published: January 2014

Mechanical behaviors and thermoforming features of plastic material PMMA-IRK-304 used in-mold decoration are studied in this paper. Dynamic mechanical analysis experiments, uniaxial tension tests at several high temperatures and different stretching velocity were carried out to analysis and explain the phenomenon of yielding, strain softening and strain hardening. Results showed that the glass transition temperature range of PMMA-IRK-304 films was suitable for thermoforming of in-mold decoration.
Effect of Fiber Fineness on Acoustic Absorption Property of Nylon 6/Low-Melting PET/Recycled PET Nonwoven
Authors: Lou Ching Wen , Hsu Ying Hsuan , Li Ting Ting , Lin Jia Horng
Published: January 2014

In recent years, as global technical progress grows, many mechanized machines are developed continuously. Mechanization has substituted for manpower in many factories for promotion of production efficiency, leading to mechanical noise happening more severely. If people are subjected to noise pollution for long term, they would happen dysphoria and absent mindedness, resulting in accident occurrence. Therefore, how to effectively reduce noise pollution becomes an urgent subject. Moreover, rapid population development and fast-growth economy raise consumption in every country, driving industry into high-production and high-consumption times and meanwhile generating much of wastes. In order to achieve sustainable development, these wastes should be recycled effectively. Therefore, 20 wt% recycled PET fibers were added in this study. This paper mainly used 3D and 15D Nylon fibers (70, 60, 50, 40, 30 wt%), low-melting PET fibers (10, 20, 30, 40, 50 wt%) and 20 wt% high-strength PET fibers, to fabricate Nylon 6/Low melting PET/ Recycled high-strength PET nonwoven via needle-punching process. After that, tensile strength, air permeability and sound absorption coefficient property of resulting nonwoven were tested and then evaluated respectively.
Manufacturing Technique and Property Evaluations of Conductive Nonwoven Fabrics
Authors: Lou Ching Wen , Lin Chin Mei , Yang Yi Chang , Huang Yu Tien , Lin Jia Horng
Published: January 2014

Conductive textiles can be used in diverse fields, such as antistatic materials, sensors, materials for electromagnetic shielding and biomedical. This study produces nonwoven fabrics with polylactic acid (PLA) and polyaniline (PAN) and the resulting PLA/PAN nonwoven fabrics are evaluated with electromagnetic shielding effectiveness (EMSE) and air permeability. Polylactic acid (PLA) and low melting point polylactic acid (LPLA) are made into nonwoven fabrics, which are then spray-coated with different amount of PAN solution to form PLA/PAN nonwoven fabrics. The fabrics are laminated with various numbers of layers, and then thermally pressed. The experiment results show that the PAN amount and lamination number are proportional to the EMSE of the PLA/PAN nonwoven fabrics.
Methods of Swanson Constitutive Model Establishment for Composite Solid Propellant
Authors: Ning Chao , Qiang Hong Fu , Wang Guang
Published: January 2014

Establishing Swanson constitutive model is discussed for composite solid propellant, which focused on the calculation of strain softening function and change strain rate correction function within the model. Prediction results of Swanson constitutive model are in good agreement degrees with the test of 24 groups uniaxial tensile data of composite solid propellant at different temperatures and extension rates. It proves the model is effective and available.
The Research on Surface Metamorphic Layer of Punch Matrix in WEDM
Authors: Lin Cheng Quan
Published: January 2014

The article focus on the metamorphic layer of punching die, punch matrix and die components in WEDM on the surface, the formation of metamorphic layer, the impact of metamorphic layers, line cutting the microscopic mechanism of the formation of cracks, and many were in-depth study and the corresponding preventive measures. These measures will speed up punching die design and manufacturing technology development. The die manufacturing technology here discussed can be the modern manufacturing technology research development direction.
Discussion on Metal Heat Treatment in Nuclear Power Plant
Authors: Zhang Jia Jun , Mei Jian , Hu Jiang , Zheng Li Xin
Published: January 2014

To improve mechanical properties and corrosion resistance, heat treatment is applied to the mechanical equipment (equipment and piping, etc.) during manufacture or installation. The nuclear class mechanical equipment with high reliability is required in nuclear power plant, but heat treatment is an important factor which affects reliability of mechanical equipment. To have a better view on issues of metal heat treatment, this paper will provide reference for subsequent heat treatment of mechanical equipment in nuclear power plant by analyzing and summarizing existing problems in heat treatment, especially during the reactor pressure vessel such heat treatment of large forgings, so as to avoid same problems.
Grinding Experiment Research of Face Gear with CNC Machine
Authors: Guo Hui , Zhang Shu Yan
Published: January 2014

A grinding method with CNC machine for face gears is studied. Firstly, the single indexing generating grinding method of face gear is introduced. Then, a grinding experiment of face-gear is performed on a CNC grinding machine with five degrees of freedom, and the tooth deviation is measured on gear measuring center. The tooth surface error is obviously decreased after grinding, and the precision of face gear tooth surface is improved significantly. Finally, a rolling test is performed which indicates that the contact path on face gear before grinding shows discontinuous because the surface deviation is over big. The contact path gets better after grinding.
Research on the Effect of Distributor Aperture Ratio on Fluidization Quality of Vibrated Fluidized Bed
Authors: Li Bin , Chen Si Da , Kong Xiang Wei , Zhang Shuang Tian
Published: January 2014

In this paper, combining with the experimental data in the reference, the purpose is to research effect of three different aperture ratios (α=6%, α=9%, α=12%) of distributor on the fluidization quality of vibrated fluidized bed (VFB). Euler-Euler model in Fluent is used to simulate the flow state. User-defined functions are used to define vibration model, and the distributor is simplified based on the porous media model. The results show that the introduction of the distributor can improve uniformity and quality of the fluidization. The aperture ratio of distributor has little influence on material distribution, however, the uniformity of the fluidization is improved with the decrease of the aperture ratio.
Research on Spheroidizing Annealing Progress of 38CrMoAl
Authors: Yuan Yu Hong , Liu Zhi Jun , Zheng Wei Gang , Zhong Shang Jun
Published: January 2014

The relationships between microsturcture and cold forming property of 38CrMoAl steel have been studied by experimental analysis investigation. The heat treatment p rocess of guenching cyclic sphereidized annealing for obtaining sturcture with optimum cold forming property was suggested. Through this process the characters with lowerhardness, lower plastic deformation resistance and better processing plastic of the steel can get. the properties of this steel can meet the requirement of cold forming process for materials.
Study on Improving of the Iron Concentrate Grade Index by Centrifuge
Authors: Cai Zheng Peng , Wang Xiao , Tong Xiong
Published: January 2014

In this study, the main aims were to iron-increasing and silicon-reduction of the iron concentrate by using centrifuge separating technology. Experimental studies were carried out on high-silica ferromagnetic iron concentrate in Dahongshan samples, which contain 50% of iron and 15% silica. Through the experiment, it chooses SLon1600 to iron-increasing and silicon-reduction of the iron concentrate. The optimum condition is pulp density of 20%~25%, feed speed of 1.99t/h, rinse water of 6.4t/h and flushing water of 10.22t/h. The iron concentrate which the grade of Fe is 62.36% and the recovery of 80.47% is obtained and the grade of silica reduce from 14.48% to 5.4%. High-quality iron concentrate is obtained, which has a better effect.
Research on Ultimate Strength and Accumulated Plastic Deflection of Box Beam under Cyclic Loading
Authors: Cui Hu Wei , Yang Ping , Sen Can , Zhou Liang
Published: January 2014

The aim of this paper is to study the ultimate strength of a thin-wall box beam under cyclic bending loads. The nonlinear numerical simulations have been performed on the cyclic behaviors of a thin-walled box beam to investigate the ultimate strength and accumulative plastic deflection effect. Four cyclic loading cases are analyzed in the numerical simulations for the Fukumoto B-60-1 box beam model. The results of the simulations by the paper are discussed and they shall provide some valuable information to further study on the problem.