baber/WOPTO huggingface dataset:
Patent KR-20210050762-A (KR)
Title: Safety system responding to chamber gas leakage in real time
Inventor: SONG HYUNG CHAN
IPC: F17D5/02
Filed: 2019-10-29
Abstract: The present invention relates to a safety system for coping with gas leakage from a plurality of chambers constituting semiconductor equipment in real time. The safety system of the present invention comprises: a plurality of chambers; a plurality of power source suppliers for supplying power source necessary for performing a semiconductor process in the chambers; a plurality of gas sensors for detecting gas leakage from the chambers; a plurality of chamber controllers for controlling operation of the chambers and the power source suppliers according to information on gas leakage transmitted by the gas sensors; and a main controller for sending a process control command to the chamber controllers and receiving state information on a semiconductor process carried out in response to the process control command from the chamber controllers. According to the present invention, leakage of flammable gases from the chambers which constitute the semiconductor equipment can be detected and notified to a manager and the like in real time and, at the same time, a safety accident occurring due to ignition of the flammable gases can be prevented.
Patent KR-20210051261-A (KR)
Title: Concrete frame and reinforced steel net integrated beam structure
Inventor: LEE SHIN HO
IPC: E04C5/06
Filed: 2019-10-30
Abstract: The present invention relates to a beam structure with an integrated reinforcing bar net employing a concrete frame. An objective of the present invention is to provide a beam structure with an integrated reinforcing bar net employing a concrete frame which can construct a reinforced concrete beam without separate form removal work by integrally embedding a reinforcing barnet of a specific structure for constructing a beam in a frame of a concrete material to form the reinforcing barnet in a reinforced concrete building. To achieve the objective, according to the present invention, the beam structure with an integrated reinforcing bar net employing a concrete frame comprises: a frame formed in a block form having a prescribed length to have a U-shaped cross section via a concrete material; a connection member made of a bent metallic material to have an L-shaped or a flipped L-shaped cross section to be fixed and installed on the upper surface of the frame in a longitudinal direction; and a reinforcing bar net having a form in which a hoop is wrapped around a plurality of main reinforcements arranged and formed to be parallel with each other to be fixed while being embedded in the frame.
Patent KR-20210052104-A (KR)
Title: the collect trap for a beehive pests
Inventor: KIM JONG LEE
IPC: A01M1/14
Filed: 2019-10-31
Abstract: The present invention relates to a beehive pest trap providing first capturing with a bee entrance trap (100) at a bee entrance of the beehive and second capturing with a floor trap (200) on the inner wall and floor in the bee entrance, in order to provide a function of trapping and controlling the invasion of small hive beetles inside the beehive. The bee entrance trap (100) is four in number and assembled with a gap of 3 mm in the form of a rectangular pipe, and thus large bees are unhindered and only small hive beetles are captured inside. A lime is applied to the inner wall of the gap of each trap excluding a fourth trap housing inner passage for bees, and a granular lure is provided on the bottom of a first trap housing. Small hive beetles, which dislike light, are captured when entering the small gap of each trap. Bees can enter and exit the beehive through the fourth trap housing provided in the center without any problems. As a result of the second capturing in view of entering into the beehive through some of the fourth trap housing, the floor trap (200) on the inner wall and the bottom of the beehive is maintained with a gap of 3 mm by a circular protrusion between a bottom lower plate and a transparent upper plate, and thus bees cannot access the trap and small hive beetles are attracted by an annular attractant in the middle to enter and be captured by the floor trap lime applied to the floor in the floor trap.
Patent KR-20200051495-A (KR)
Title: Recombinant vector using Newcatsle Disease Virus isolated from wild bird in Korea and method for preparing thereof
Inventor: PARK MAN SEONG
IPC: C12N15/86
Filed: 2019-11-01
Abstract: The present invention relates to a recombinant vector produced by inserting full-length gene of new Newcastle disease virus KU001 strain (Accession No. : KCTC18794P) isolated from domestic wild ducks, and to a production method thereof.
Patent KR-20210054605-A (KR)
Title: Composition for radar penetration cover of vehicle
Inventor: CHO BYUNG KYU
IPC: G01S7/02
Filed: 2019-11-04
Abstract: The present invention relates to a composition for a radar penetration cover of a vehicle, capable of improving dielectric properties while maintaining excellent mechanical properties. The composition for the radar penetration cover of the vehicle according to one embodiment of the present invention, as a composition for forming a radar transmission cover for a vehicle through which a radar beam radiated from radar is transmitted, contains a mixture of: a main material mixed with 70-90 wt% of polybutylene terephthalate (PBT) and 10-30 wt% of polycarbonate (PC); and an additive including at least a reinforcing filler.
Patent KR-20200060272-A (KR)
Inventor: BRAUN STEFFEN
IPC: F01D19/00
Filed: 2019-11-19
Abstract: The present invention relates to an insert member (1), which is a rupture protection device, for a turbocharger (10), especially a radial flow turbocharger, including a turbine housing (20) wholly surrounding a turbine wheel (21), which is placed in the turbine housing (20) to be rotatable. In order to be at least partially interlocked with the turbine wheel (21), the rupture protection device (1) is placed on an inner wall (22) of the turbine housing in a ring form relative to a center axis (A) in a circumferential direction, and the rupture protection device (1) includes at least one first recess/hollow space (2). The first recess/hollow space (2) of the rupture protection device (1) is formed such that due to the plastic deformation of the first recess/hollow space (2), when the turbine wheel is ruptured, the kinetic energy of fragments of the turbine wheel (21) is absorbed by the rupture protection device (1). For this purpose, the first recess/hollow space (2) is opened unilaterally towards the turbine housing (20).
Patent KR-20210062874-A (KR)
Title: Control system of electric assist module and control method for wheelchair driving on stairs and stepped terrain
Inventor: LEE EUNG HYUK
IPC: A61G5/06
Filed: 2019-11-22
Abstract: An objective of the present invention is to provide a system including an electric assist module allowing driving of a wheelchair on steps and stepped ascents without an assisting person. The electric assist system provided on a wheelchair frame having a seating unit allowing a passenger to sit thereon and provided on a frame with a footrest and a handle and having drive wheels provided on both sides of the frame comprises: a caterpillar unit of a caterpillar-type driving member mounted on the wheelchair frame to ascend on steps or stepped protrusions of the wheelchair frame; a landing gear unit provided on the caterpillar unit, wherein a front and a rear free end thereof are lifted/lowered about the center of gravity of the wheelchair frame; a three-axis acceleration sensor measuring the x, y, z-axis acceleration of the caterpillar unit; and a control unit calculating a roll angle and a pitch angle with data of the acceleration sensor to estimate the yaw angle of the caterpillar unit. When one end of the landing gear unit is lifted, the caterpillar unit is lifted to come in contact with a step or a stepped surface. Then the slope of the step or the stepped protrusion of the wheelchair frame is lifted without an assisting person by ascending on the stepped protrusion by driving of the caterpillar unit.
Patent KR-20210065230-A (KR)
Title: Method and apparatus for removing fog in image
Inventor: LEE JUNG SOO
IPC: G06T5/00
Filed: 2019-11-26
Abstract: A processor implemented in an apparatus for removing fog in an image separates an input image into a light emitting layer image and a fog layer image, removes a fog component existing in the fog layer image, generates an image having no fog component, extracts a detail component included in the light emitting layer image using the image having no fog component, reflects the extracted detail component to the image having no fog component, and obtains the final image having no fog component. It is possible to prevent the degradation of images captured under marine environment.
Patent KR-20210068713-A (KR)
Title: System for predicting disease progression using multiple medical data based on deep learning
Inventor: KWANG SUNG AHN
IPC: G16H10/20
Filed: 2019-12-02
Abstract: According to an embodiment of the present invention, provided is a system for predicting disease progression through deep learning-based multi-medical data, which comprises: a data collection unit for collecting and storing multi-medical data including pathology information and image information of a patient; a data pre-processing unit for pre-processing the multi-medical data by performing a replacement process for filling a loss value and a normalization process for making the scales of each characteristic of the multi-medical data the same; a machine learning unit for selecting important factors from the multi-medical data by performing machine learning on the pathology information of the patient of the multi-medical data; and a deep learning prediction unit for predicting disease progression by matching the important factor and the image information with the machine learning unit by deep learning modeling.
Patent KR-20210069751-A (KR)
Title: a vibration reducing structure for a rotor of an electric motor
Inventor: KYUNG PYO YI
IPC: H02K1/22
Filed: 2019-12-03
Abstract: The present invention relates to a motor rotor vibration reduction structure and, more specifically, to a motor rotor vibration reduction structure which installs a vibration reducing member inside a rotor of a motor to stably reduce vibration without interfering with rotation of the motor when a vibration mode occurs due to a torque ripple. According to the present invention for achieving the above purpose, in the motor rotor vibration reduction structure comprising a stator and a rotor, a vibration reducing member is installed in a spot, where vibration displacement of the rotor is the greatest, and the vibration reducing member is made of a piezoelectric body.
Patent KR-20210072224-A (KR)
Title: Emergency Situations Handling System Using Drones
Inventor: LEE KYU BIN
IPC: F21Y115/10
Filed: 2019-12-07
Abstract: The present invention relates to an emergency response system using a drone. The emergency response system includes: a flow chart of an emergency response system; a trunk carrying the emergency response equipment of an emergency response drone; speaker and microphone for voice calls between callers and paramedics of the emergency response drone; a camera for video call between the caller and paramedics of the emergency response drone; a GPS device which identifies a location of the emergency response drone; and an LED warning lights for helping callers know their location. Accordingly, it is possible to solve the problems of various situations in which ambulances and the paramedics are delayed due to various variables such as complicated roads in cities, clogged traffic conditions, and narrow streets in alleys.
Patent KR-20210073145-A (KR)
Title: Scheduling-based Training Data/Model Allocation Method and Apparatus for Distributed-Parallel Deep Learning
Inventor: SHIN SUNG PIL
IPC: G06N3/08
Filed: 2019-12-10
Abstract: Disclosed are a scheduling-based training data/model allocation method and a device for distributed-parallel deep learning. The training data/model allocation method performed by a scheduling server includes the steps of: transmitting sample data to a plurality of participating workers included in a training data/model allocation system; receiving computing power of the participating workers for the sample data; calculating learning allocation for each of the plurality of participating workers based on the received computing performance of the participating workers; and splitting the training data based on the calculated learning allocation for each of the plurality of participating workers and transmitting the training data to each of the plurality of participating workers. Accordingly, it is possible to improve low hardware utilization caused by an existing stale synchronous parallel (SSP) scheme and a synchronous scheme.
Patent KR-20210073209-A (KR)
Title: Array antennas for good polarization charcteristics
Inventor: YUN SO HYEUN
IPC: H01Q21/06
Filed: 2019-12-10
Abstract: Disclosed are an array antenna minimizing degradation of polarization characteristics and a manufacturing method thereof. An array antenna according to an embodiment of the present invention includes: a horn plate having a plurality of horns arranged therein; and a front wall structure formed in a direction perpendicular to a front surface of the horn plate.
Patent KR-20210073989-A (KR)
Title: Hot-melt composition for water treatment element and water treatment element comprising same
Inventor: KIM KWANG HWAN
IPC: C09J201/00
Filed: 2019-12-11
Abstract: The present specification provides a hot melt adhesive composition for a water treatment element and the water treatment element including the same. In the case of manufacturing the water treatment element using the hot melt adhesive composition for the water treatment element according to an exemplary embodiment of the present specification, it is possible to increase an effective film area, increase the productivity, reduce the defect rate, and improve workability of the water treatment element.
Patent KR-20210074047-A (KR)
Title: Cosmetic container including piezoelectric material
Inventor: HONG SUNG YUN
IPC: C04B35/49
Filed: 2019-12-11
Abstract: The present invention provides a cosmetic container, which comprises: an accommodating part for accommodating cosmetics therein; and a massage part containing piezoelectric materials for generating microcurrents based on pressure applied. By applying the piezoelectric materials to the cosmetic container, the cosmetics and the massage part having functions for beauty can be provided together.
Patent KR-20210080121-A (KR)
Title: A rotary type tiny actuator based on mr fluids of easy assembly disassembly and processing
Inventor: YUN IN HO
IPC: H02K7/00
Filed: 2019-12-21
Abstract: The present invention relates to a magnetic rheological fluid based micro-rotation type actuator for facilitating assembly, disassembly and process. The magnetic rheological fluid based micro-rotation type actuator for facilitating assembly, disassembly and process comprises: a housing having a solenoid coil mounting unit and a shaft mounting unit; a solenoid coil disposed to be inserted into the solenoid coil mounting unit of the housing; a shaft disposed to be inserted into the shaft mounting unit of the housing; a housing cover coupled to an upper end of the housing; a bearing for fixing a rotation axis of the shaft; and a magnetic rheological fluid that forms a magnetic chain. Therefore, the micro-rotation type actuator can reduce manufacturing costs and manufacturing time.
Patent KR-20210080788-A (KR)
Inventor: PARK JI HUN
IPC: G06F3/023
Filed: 2019-12-23
Abstract: The present invention relates to an electronic device that obtains a first character string including a predefined character from a first user utterance, recognizes a second character string edited by the first character string according to a first editing command as an input character when the first user utterance includes a first editing command following the first character string, and performs an editing operation for a second character string based on a second editing command when the second editing command is included in a second user utterance not including the first editing command. Therefore, the present invention is capable of improving a usability of an editing function through voice recognition.
Patent KR-20210081000-A (KR)
Title: Charge terminal protection device
Inventor: SHIN JAE HYEOK
IPC: H01R13/62
Filed: 2019-12-23
Abstract: The present invention relates to a charging terminal protection device. The present device may comprise: a power conversion device to which an external power is supplied; a power supply terminal connected to the power conversion device, and comprising one or more first power electrodes; and a power input terminal comprising at least one or more second power electrodes connected to the power supply terminal and present at a position corresponding to the at least one or more first power electrodes, and comprising a switch part connected to the second power electrode. Therefore, the present invention is capable of reducing a risk of a fire from occurring.
Patent KR-20210084954-A (KR)
Title: Methodology to protect copyright for images using blockchain technology
Inventor: SEUNGWOOK PARK
IPC: H04L9/32
Filed: 2019-12-30
Abstract: Disclosed is a method for protecting copyright using blockchain. According to one embodiment, a method for protecting image information performed by an image information protection system includes the steps of: generating block-chained image information through program conversion of image information of a provider; performing image information and an authentication process of a user, as the generated block-chained image information is distributed to the user based on a hash value set for the user; and reproducing the block-chained image information, as the performed image information and user authentication process are completed.
Patent KR-20210085081-A (KR)
Title: Air respirator cradle
Inventor: WON YOUNG SIK
IPC: A62B7/00
Filed: 2019-12-30
Abstract: In accordance with the present invention, a mask fixing means (100) including a rotor support part (120) is provided to fix a mask (2) which is a component of an air respirator (1) regardless of the size of the mask, and an air container narrowing means (200) including a resin pad (221) is provided to absorb a shock generated when an air container (9) is placed on a bracket body (10). Moreover, a support means (300) including a semilunar rotor (340) is provided to support a state in which the front end of a waist protector (7) of a back plate (5) on which the air container (9) of the air respirator (1) is placed is folded outward to be headed toward a storage space part (11), and a belt hanging means (400) comprising a belt hanging part (412) is provided by extending a front end part (411) of an air container support plate (410) and bending the same on multiple levels to prevent a belt (8) integrated with the folded front end of the waist protector (7) from sagging. The mask (2) and the air container (9) of the air respirator (1) can be stably placed through the mask fixing means (100) and the air container narrowing means (200), and the waist protector (7) and the belt (8) of the air respirator (1), which are protruding or sagging, can be ordered into a stable state through the support means (300) and the belt hanging means (400).
Patent KR-20190016582-A (KR)
Title: 온도 센서 커버용 슬리브, 상기 유형의 슬리브를 포함하는 온도 측정 장치, 상기 유형의 슬리브를 온도 측정 장치에 접합시키는 방법 및 합금의 용도
Inventor: MUZIOL MATTHIAS
IPC: G01K7/16
Filed: 2017-06-27
Abstract: 본 발명은 센서 커버용, 특히 온도 센서(70) 커버용 슬리브(10), 특히 보호적 케이싱(casing)에 관한 것이다.  본 발명에 따르면, 이러한 슬리브(10)는 니켈-크롬-알루미늄-철 합금으로부터 제조되고, 여기서, 이러한 합금은 10.0 내지 30.0 중량%의 크롬 (Cr), 0.5 내지 5.0 중량%의 알루미늄 (Al), 0.5 내지 15.0 중량%의 철 (Fe) 및 50.0 내지 89.0 중량%의 니켈 (Ni)을 포함한다.
Patent KR-20190028541-A (KR)
Title: 무급유 유정압 베어링을 구비한 터보차저
Inventor: PINERA ALEX
IPC: F16C32/06
Filed: 2016-07-26
Abstract: 내연기관 엔진용 터보차저로서, 상기 터보차저는 컴프레서(11)로부터 공급된 압축공기에 의해 반경 방향 및 축 방향 모두에서 유정압 베어링들(15, 16)에 의해 지지되고, 별개의 부스트 컴프레서(17)에 의해 터보차저의 로터를 지지하기에 충분히 높은 압력으로 압력이 부스팅된다. 터보차저 유정압 베어링들(15, 16)은 와이어 메시 또는 분산형 마찰식 댐퍼들(33, 41)을 사용하여 댐핑된다.
Patent KR-20190031589-A (KR)
Title: 내연 기관의 제어 방법 및 제어 장치
Inventor: HAMAMOTO TAKAYUKI
IPC: F02M26/17
Filed: 2016-09-09
Abstract: EGR 통로(27)가 흡기 통로(12)에 합류하는 합류 위치(30)보다도 상류측의 흡기 통로(12)에 부압 제어 밸브(44)를 마련한다.  EGR 통로(27)를 통하여 EGR 가스를 흡기 통로(12)로 환류시키는 EGR 영역(Regr)에서는 배기 통로(13)와 흡기 통로(12) 사이의 차압을 확보하도록 부압 제어 밸브(44)를 제어한다.  그리고 EGR 영역(Regr)보다도 저부하측의 운전 영역(R2)에서는 소음의 발생을 억제하도록 부압 제어 밸브(R2)를 폐쇄 방향으로 제어한다.
Patent KR-20190045399-A (KR)
Title: 하이드라지드 함유 핵 수송 조절인자 및 이의 용도
Inventor: SANDANAYAKA VINCENT P
IPC: A61K31/454
Filed: 2012-07-26
Abstract: 본 발명은 일반적으로 핵 수송 조절인자, 예컨대 CRM1 억제제, 및 보다 특히 하기 화학식(I)에 의해 표현되는 화합물 또는 이의 약제학적으로 허용되는 염에 관한 것이다.  본 발명은 또한 화학식(I)의 화합물 또는 이의 약제학적으로 허용되는 염 또는 조성물의 합성 방법 및, 예컨대 CRM1 활성과 관련된 생리적 상태의 치료, 조절 및/또는 예방에서의 이들의 용도를 포함한다: 
   
상기 식에서, 변수에 대한 의의 및 대안적인 의의는 본원에 정의되고 기재된 바와 같다.
Patent KR-20190058579-A (KR)
Title: 무선 통신 시스템에서 상향링크 전송에 우선하는 사이드링크 전송을 수행하는 방법 및 그에 대한 장치
Inventor: LEE JAEWOOK
IPC: H04W72/14
Filed: 2017-10-20
Abstract: 본 발명은 무선 통신 시스템에 관한 것이다. 특히, 본 발명은 무선 통신 시스템에서 상향링크 전송에 우선하는 사이드링크 전송을 수행하는 방법 및 장치에 관한 것으로, 상기 방법은 서브프레임에서 전송되는 상향링크 데이터 및 사이드링크 데이터를 발생하는 단계와; 사이드링크 전송이 상향링크 전송에 우선하는 경우 상향링크 전송이 서브프레임에서 거부되는 것으로 결정하는 단계와; 그리고 상향링크 전송이 거부되는 서브프레임에서 사이드링크 데이터를 전송하는 단계를 포함하고, 상기 서브프레임은 유효 기간 동안 상향링크 전송의 거부가 허용된 서브프레임들 중 하나이다.
Patent KR-20190094349-A (KR)
Title: 조성물, 경화물 및 적층체
Inventor: OTSU MASATO
IPC: C08J5/04
Filed: 2017-12-14
Abstract: 본 발명의 과제는, 내열성과 밀착성이 우수한 조성물을 제공하는 것에 있다.  또한, 당해 조성물을 경화해서 이루어지는 경화물, 및 당해 경화물을 함유하는 적층체를 제공하는 것에 있다.  또한, 조성물을 함유하는 내열 재료 및 내열 부재, 전자 재료 및 전자 부재를 제공하는 것에 있다. 
벤젠환을 1개 이상 갖는 구조를 갖고, (메타)알릴기를 갖는 기를 1개 이상 갖고, 또한 말레이미드기를 갖는 기를 1개 이상 갖는 것을 특징으로 하는, (메타)알릴기 함유 말레이미드 화합물과, 벤젠환을 1개 이상 갖는 구조를 갖고, 수산기를 갖는 기를 1개 이상 갖고, 또한 말레이미드기를 1개 이상 갖는 것을 특징으로 하는, 수산기 함유 말레이미드 화합물을 함유하는 조성물을 제공함으로써, 상기 과제를 해결한다.
Patent KR-20190100288-A (KR)
Title: 엘리베이터의 제어 장치
Inventor: TABATA HIROYASU
IPC: B66B5/02
Filed: 2016-12-26
Abstract: 정상으로 복구된 것을 엘리베이터 자신이 인식할 수 있는 엘리베이터의 제어 장치를 제공한다. 본 발명에 따른 엘리베이터의 제어 장치(7)는, 엘리베이터(1)의 기기에 발생한 고장을 검출하고, 검출된 고장에 대응하는 고장 코드를 출력하는 고장 검출부(11)와, 고장에 대한 처치가 실시된 일시를 고장 코드마다 기억하고 있는 기억부(13)와, 기억부(13)의 기억 내용에 기초하여, 고장에 대한 처치가 실시되고 나서 미리 설정된 임계값 이상의 시간이 경과될 때까지 고장 검출부(11)에 의해 당해 고장에 대응하는 고장 코드가 출력되지 않았을 경우에 당해 고장이 발생되어 있던 기기가 정상으로 복구되었다고 판정하는 복구 판정부(14)를 구비한 것이다.
Patent KR-20190099284-A (KR)
Title: 양자 난수 발생기
Inventor: MAYNARD OLIVER
IPC: H04L9/08
Filed: 2017-12-19
Abstract: 본 발명은 난수들을 생성하기 위한 시스템에 관한 것으로, 광자들을 방출하기 위한 광원, 광 확산기 요소, 및 각각 수신된 광을 전하로 변환하기 위한 복수의 광 검출기 요소들을 포함한다. 이러한 시스템은 복수의 광 검출기 요소들의 각각의 전하를 출력 값으로 변환하기 위한 수단을 더 포함한다. 이러한 광원은 광자들로 복수의 광 검출기들을 조사하기 위한 것이고, 이로 인해 광자들은 상기 복수의 광 검출기들 중 임의의 광 검출기들에 입사한다. 확산기는 상기 광원과 상기 복수의 광 검출기 요소들 사이의 광 경로에 위치하고, 복수의 광 검출기 요소들의 각각의 조사의 정도를 더 균일하게 만들기 위한 것으로, 이로 인해 복수의 광 검출기 요소들의 출력 값들은 각각 양자 노이즈를 포함하는 난수들의 세트를 포함한다.
Patent KR-20190101447-A (KR)
Title: 조성물, 막, 광 센서 및 분산제
Inventor: KATO RYOSUKE
IPC: C08L25/18
Filed: 2018-01-30
Abstract: 경화성이 우수한 조성물을 제공한다. 또, 막, 광 센서 및 분산제를 제공한다. 조성물은, 식 (1)로 나타나는 화합물과, 안료와, 용제를 함유하고, 이 조성물은, 두께 4.0μm의 막을 형성했을 때의, 막의 두께 방향에 있어서의 광의 투과율의 파장 360nm~700nm의 범위에 있어서의 최댓값이 40% 미만이며, 식 (1) 중, Z 1 은 (m+n)가의 연결기를 나타내고, Y 1  및 Y 2 는 각각 독립적으로 단결합 또는 연결기를 나타내며, A 1 은 안료 흡착부를 포함하는 기를 나타내고, P 1 은 폴리머쇄를 나타내며, n은 1~20을 나타내고, m은 1~20을 나타내며, m+n은 3~21을 나타내고, Z 1 , A 1  및 P 1  중 적어도 하나는 광경화성기를 포함한다.
Patent KR-20190095520-A (KR)
Title: 쾌삭성 구리 합금, 및 쾌삭성 구리 합금의 제조 방법
Inventor: OISHI KEIICHIRO
IPC: C22C9/04
Filed: 2018-02-21
Abstract: 이 쾌삭성 구리 합금은, Cu: 75.4~78.7%, Si: 3.05~3.65%, Sn: 0.10~0.28%, P: 0.05~0.14%, 및 Pb: 0.005% 이상, 0.020% 미만을 포함하며, 잔부가 Zn 및 불가피 불순물로 이루어지고, 조성은 이하의 관계를 충족시키며, 
76.5≤f1=Cu+0.8×Si-8.5×Sn+P≤80.3, 60.7≤f2=Cu-4.6×Si-0.7×Sn-P≤62.1, 0.25≤f7=[P]/[Sn]≤1.0, 
구성상의 면적률(%)은 이하의 관계를 충족시키고, 
28≤κ≤67, 0≤γ≤1.0, 0≤β≤0.2, 0≤μ≤1.5, 97.4≤f3=α+κ, 99.4≤f4=α+κ+γ+μ, 0≤f5=γ+μ≤2.0, 30≤f6=κ+6×γ 1   /2 +0.5×μ≤70, 
γ상의 장변이 40μm 이하, μ상의 장변이 25μm 이하이며, α상 내에 κ상이 존재하고 있다.