baber/WOPTO huggingface dataset:
Patent ES-2538740-B1 (ES)
Title: Cápsulas y sistema para la preparación de bebidas con medios de apertura activables
Inventor: ORTEGA FERNANDEZ FRANCISCO
IPC: B65D85/816
Filed: 2014-12-26
Granted: 2016-05-13
Abstract: Cápsulas (1) para la preparación de bebidas con medios de apertura activables a partir de la interacción de un fluido y un ingrediente (2) contenido en una cámara cerrada en su interior. Las cápsulas (1) comprenden un empujador (6), o un perforador (19), o un tirador (22), o una lámina desprendible (30) dispuesta sobre el orificio en el exterior de la carcasa (5), o un tapón retirable (33). La invención también se refiere a un sistema que comprende una cápsula (1) y una máquina de preparación de bebidas adaptada para cooperar con ella.#De aplicación en aquellos sectores en los que se diseñen, fabriquen, produzcan o utilicen cápsulas para la preparación de bebidas, como por ejemplo el de la alimentación, bebidas y tabaco, el de química, el de caucho y materias plásticas, el de fabricación de productos metálicos y el de comercio y hostelería.
Patent ES-2518790-B1 (ES)
Title: Procedimiento y dispositivo de limpieza de superficies metálicas utilizando una corriente continua
Inventor: VICARIA RIVILLAS JOSÉ MARÍA
IPC: C25F7/00
Filed: 2014-09-08
Granted: 2015-08-12
Abstract: Procedimiento y dispositivo de limpieza de superficies metálicas utilizando una corriente continua.#La invención consiste en procedimiento de limpieza de superficies de metálicas mediante el uso de una corriente continua y en presencia de una solución básica con pH elevado que aporte iones OH{sup,-} al medio durante el proceso de limpieza, así como en un dispositivo que implementa dicho procedimiento.
Patent ES-2614777-B1 (ES)
Title: Tejido de fibra de carbono reflectante
Inventor: CASTANO DE ELIZALDE EDUARDO
IPC: D03D15/00
Filed: 2015-12-01
Granted: 2018-03-12
Abstract: Tejido de fibra de carbono reflectante que comprende dos materiales tejidos entre sí, de tal manera que forman un tejido regular en cuanto a la forma se refiere (ver figura 1).#Dicho material, una vez tejido, puede ser utilizado para el recubrimiento de una pieza o geometría, afectando simplemente a la apariencia de dicha pieza sin modificar apenas su estructura.#Se consigue de esta forma dotarla de una nueva propiedad, la refractaria, de forma y manera que brille al ser iluminada por un foco externo de luz, lo que la convierte en un elemento de seguridad pasiva.#Por lo que dicha pieza, estéticamente hablando, parecerá una pieza de fibra de carbono, pero al ser iluminada, reflectará la luz y se convertirá en un elemento de seguridad pasiva, lo cual intervendrá en la prevención de accidentes.
Patent JO-2444-B1 (JO)
Title: A Mechanism for Compression Actuating, By means of A Rocking key, Switches, Change-over Switches, Selector Switches nd The Like.
Inventor: GUSI PIERO CAMILLO
Filed: 2004-03-18
Granted: 2008-10-09
Abstract: A mechanism is described for compression actuation, by means of a rocking key, of electric controls such as switches, change-over switches, selector switches and the like, in which there are provided at least one fixed contact (12) and one movable contact (11), carried by a movable anchor (10), rotatively actuated to bring the movable contact (11) towards or away from the fixed contact (12), through a pin (21) operated by the rocking key (5) and pushed against said movable anchor(10) by a compression spring (22), where the pin acts against the movable anchor (10) by means of an articulated head or joint (38) shaped like a fork, so that the two branches of the fork arrange themselves on corresponding areas (45) of the anchor that are substantially symmetrical with respect to its centre (46).
Patent JO-3629-B1 (JO)
Title: Towing assembly
Inventor: ELHARDT PAUL MICHAEL
IPC: B60D1/54
Filed: 2013-08-14
Granted: 2020-08-27
Abstract: The present invention relates to a towing bar assembly that may convert from an articulated assembly extracting a vehicle in an inaccessible location to a rigid assembly for safely towing a vehicle on a road.
Patent JO-3690-B1 (JO)
Title: Device and method for fitting an artificial knee joint using universal electronic templates which can be adapted to all artificial joints
Inventor: MAHMOUD ALAM EL DIN ABDEL HAFEZ
IPC: A61B17/15
Filed: 2015-12-10
Granted: 2020-08-27
Abstract: Total Knee arthroplasty is the standard treatment for advanced knee osteoarthritis. A new technique of patient specific instruments (PSI) was first reported by Hafez et al 1-3 in 2004 & 2006 followed by commercialization by several implant manufacturers that produce PSI exclusively for their own knee implants. Therefore, these PSI are very expensive and cannot be used as a universal or an open platform. This invention is a device and a method for preparing a knee joint for a prosthesis in a patient undergoing TKA surgery for any knee implant (prosthesis). The device and the method are used in a universal and an open platform fashion for any currently available knee implant, all patient specific implants and any knee implants that could be produced in future.The device is a patient specific instrument, which is based on a method comprising of image based (CT, MRI or computed X-ray) 3-D preoperative planning to design the templated (PSI) that are used to perform the knee surgery.
Patent KR-800000024-B1 (KR)
Title: Apparatus for producing composts
Inventor: SAKAMAKI KENJI
IPC: C05F9/02
Filed: 1976-06-16
Granted: 1980-01-26
Abstract: An apparatus for producing effectively composts by means of an aerotropic fermentation of organic wastes, excrements and the like, is comprised of a parallelepiped fermentation tank, a mixing & stirring device for deposits including organic wastes in slurry phase, a discharge device of fermented deposits, and an air suction device disposed on the bottom plate of the fermentation tank.
Patent KR-800000641-B1 (KR)
Title: Process for preparation of catalyst for polymerizing alpha-oleffins
Inventor: USAMI KATSUYUKI
IPC: C08F4/64
Filed: 1977-01-19
Granted: 1980-07-12
Abstract: Catalysts for poymerizing α-olefins were manufd. by following method. Reaction of TiCl4 34, AlCl3 32, and Al 5g in 300 ml C6H6 at reflux under N gave a soln. of complex which (77ml) was treated with 22ml Bu2O at <=35≰C and then with 10ml TiCl4 at 10≰C to form a ppt. Heating the reaction mixt. 2hr at 65≰C gave the blackish purple, activated Ti catalyst component(I), polymn. of propylene with 200mg I and 0.3ml Et3 Al in heptane gave 98 % cryst. polypropylene(II) of which 92.9% was 20-485 mesh and 1.6%<200 mesh; productivity was 868gII/g catalyst/hr.
Patent KR-820001518-B1 (KR)
Title: Process for preparing 2-pyridyl-& 2-pyrimidyl aminobenzoic acids
Inventor: SCHROMM KURT
IPC: A61K31/44
Filed: 1978-07-10
Granted: 1982-08-27
Abstract: The title compds. I[A = CH, N; R1 = H, lower alkyl, lower alkoxy, fused benzo ring, tetrazol-5-yl, CN, COR4(R4 = OH, NH2, NHOH, tetrazol-5-ylamino); R3 = H, lower acyl; R2 = COR4, tetrazol-5-yl, CN, lower alkyl, lower alkoxy, fused benzo ring  were prepd. as antiallergy agents.  Thus, compds. II was oxidized with KMnO4 and sapond. with aq. KOH to give I.
Patent KR-820002113-B1 (KR)
Title: Siloxane-epoxy molding compound with improved crack resistance
Inventor: MICHAEL K
IPC: C08L63/00
Filed: 1979-06-20
Granted: 1982-11-10
Abstract: Molding compns. characterized by high resistance to thermal shock, e.g, when used to encapsulate integrated circuits were prepd. by blending 5-60wt.% phenylpolysiloxane resin(2.5-10.0wt.% Si-bound OH groups; also C1-3 alkyl substituent), 40-95wt.% arom. epoxy resin 38% of which is a bisphenol diglycidyl ether polymer, 0.1-10wt.%(based on siloxane and epoxy resin) Al acylate curing catalyst, and 65-85wt.%(based on siloxane, epoxy resin, and catalyst) silica filler.
Patent KR-830000075-B1 (KR)
Title: Semiconductor laser device
Inventor: KAJIMURA TAKASHI
IPC: H01L33/00
Filed: 1979-07-10
Granted: 1983-02-05
Abstract: GaAstP1-t(0.54<t<1.0) is in general used as a semiconductor substrate (4). The first semiconductor layer (2) is a covering layer which is composed of a GapAl1-pAsqP1-q (o<p -0.91, 0.47 q 1.0). Active layer, the second semiconductor layer, is a GajIn1-yAszP1-x (0.52<y<1.0, o x 1.0)(1). The refraction rate of the second layer is higher than that of the first layer, on the other hand, the band gap of(1) is less than that of(2). The third layer is formed by a Gap'Al1-p'Asq'-P1-q' (o<p'<0.91, 0.47<q'<1.0) (3).
Patent KR-820001969-B1 (KR)
Title: Surface protective coating compositions
Inventor: VASISHTH R
Filed: 1979-10-26
Granted: 1982-10-22
Abstract: The water-polar org. solvent ratio in water-dilutable alkyd varnishes is maintained at a sufficiently high value (at least 5.0:1.0) to allow the time interval between the first and second application to the substrate to be sufficiently high so that the second layer can be applied in a convenient time without curling or wrinkling of the coating, but not so high that the alkyd resin ppts. causing discontinuity in the coating.  A mixt. contg. 80% solids water-dilutable alkyd-Propasol P (propoxypropanol) soln. 340, aq. NH4OH 26, butyl Cellosolve 30, and water 482 parts was mixed with 7 parts Tinuvin P paste to give a soln. for coating compositions.
Patent KR-810000659-B1 (KR)
Title: Dehydrating method from water coal
Inventor: AN WON JONG
IPC: B30B9/26
Filed: 1980-01-23
Granted: 1981-06-16
Abstract: The title method is described in which 80% hydrous coal in the hydraulic mining was vibrated on the screen conveyor (A) to become 15-20% hydrous coal, and then filtered by forcing at 70-80kg/cm2 to become 9-10% hydrous coal.  The forced filtering unit(B) is equipped with the filtering machine(15) in which a large number of about 30mmΦ filtering hole(20) is drilled at the inside and 30 mesh screen(21) is lined at the outside.
Patent KR-830002088-B1 (KR)
Title: 원주상으로 일정하게 변위하는 고정자 코아를 가진 전동기계
IPC: H02K1/18
Filed: 1980-06-07
Granted: 1983-10-11
Abstract: 내용 없음.
Patent KR-830002803-B1 (KR)
Title: 자당액을 탈색 및 탈회시키기 위한 골탄 및 과립상 활성탄 조성물
IPC: C13B20/12
Filed: 1980-11-28
Granted: 1983-12-16
Abstract: 내용 없음.
Patent KR-850000313-B1 (KR)
Title: Rotary electric motor
Inventor: HARANO KEIICHI
IPC: H02K9/06
Filed: 1981-04-30
Granted: 1985-03-18
Abstract: A rotary electric motor of a sealed type comprising a heat pipe in a rotor shaft and a plurality of air vents in a stator. In the operation of this motor, a rotor mounted on the rotor shaft is cooled by the heat pipe and simultaneously, the stator is cooled directly by the air flowing therethrough.
Patent KR-850001452-B1 (KR)
Title: Magnetic recording device
Inventor: MORIKAWA TOSHINORI
IPC: G11B15/66
Filed: 1982-02-03
Granted: 1985-10-05
Abstract: This device allows a single source to drive both a tape mounting device to extract tape from the cassette and a mode switching device is sequence. A magnetic tape is interposed between a pinch roller and capstan. A tape-extraction post is provided together with a tape- mounting device, constituted by a main ring and auxiliary ring which have peripheral toothed portions for engagement with an output portion of the planetary gear unit section. A second output portion of the gear-unit section engages a toothed portion of an operation mode-switching device.
Patent KR-880000125-B1 (KR)
Title: Control method for air fractionation by vacuum swing adsorption
Inventor: SIRCAR SHIVAJI
IPC: B01D53/04
Filed: 1983-09-09
Granted: 1988-03-12
Abstract: During an initial adsorption step, the % compsn. of the atmos pheric air being processed is sensed as it is introduced into a train of beds comprising a pretreatment bed and air fractionation bed.  The step is terminated when a predetermined high level of O2 is detected.  The % compsn. of high purity N2 in the train is sensed during a rinse step and the step is terminated when a predetermined low level of O2 is detected. During an evacuation step, the level of pressure in the train is sensed and predetermined subatmospheric pressure levels are determined for terminating evacuation in the air fraction bed and then pretreatment bed.
Patent KR-870001475-B1 (KR)
Title: Conveyor belt
Inventor: KAWAUCHI KATSUTOSHI
IPC: B65G15/34
Filed: 1983-12-10
Granted: 1987-08-13
Abstract: Multiple small pieces(17) of heat proof and wear-resistant material are fixed on the conveyor plane through a buffer layer (10,11,16) of elastic material.  The small pieces can be made of ceramics and the buffer layer is made of rubbder and the small pieces are attached on the middle portion of the centre nateral (12).  The buffer layer is composed of bases and the pieces (17) are fixed on this surface as extruded materials(9).  The extruded materials are fixed on the conveyor plane.  Another buffer layor (10) is made within the extruded materials.  The buffer layer can be made of surface covering rubber, which covers the surface of the centre material(12). Clearences(19) are made between the small pieces(17).
Patent KR-910001043-B1 (KR)
Inventor: KOJIMA TADAO
IPC: C07C51/353
Filed: 1984-06-23
Granted: 1991-02-21
Abstract: 내용 없음.
Patent KR-850000842-B1 (KR)
Title: Process for the preparation of cyclohexyl biphenyl
Inventor: EIDENSCHINK RUDOLF
IPC: C09K19/14
Filed: 1984-07-14
Granted: 1985-06-17
Abstract: Cyclohexylbiphenyls(I; R1 = C1-12 alkyl; R2 = C1-12 alkoxy!, which are useful as components of liquid crystal dielecs., were prepd. by the reaction of II and alkylating agent. Thus, 32g p-(4- pentylcyclohexyl)-p'-hydroxybiphenyl was reacted with 31g pentylbromide and 70g anhydrous potassium carbonat to give 37g p-(4- n-petylcyclohexyl)-p'-n-pentyloxybiphenyl.
Patent KR-860002007-B1 (KR)
Title: A magnetron
Inventor: SHI SOK-KON
IPC: H01J23/15
Filed: 1984-09-18
Granted: 1986-11-12
Abstract: An output part of a magnetron surrounded with a permanent magnet(18) has a prolonged cylindrical sleeve(1) having a length of h2 which is 1/2 times of one wave length of the basic frequency. An input part has also a cylindrical prolonged sleeve (2) having a length of h3 which is 1/4 times of one wave length of the basic frequency so that the leakage of the higher-order harmonics is prevented.
Patent KR-940004652-B1 (KR)
Inventor: ALGUAD MARK
IPC: G01N21/86
Filed: 1985-10-31
Granted: 1994-05-27
Abstract: 내용 없음.
Patent KR-890001432-B1 (KR)
Title: Loading device of video tape recorder
Inventor: KIM JONG-YOB
IPC: G11B15/60
Filed: 1985-12-26
Granted: 1989-05-03
Abstract: This invention relates to a tape loading device of a video tape recorder.  The loading device comprises a cam gear meshed with a gear lever.  A slider moved right and left, by the gear lever, forms two spur gears which mesh with an arm for moving a guide roller and gears for moving another guide roller.  The gear lever meshes with a gear for rotating a lever pole base on which a roller and a post are mounted.  A gear being rotated at a inclind shaft is engaged with a ring gear which equips spaced loading rollers on the top surface. Then the ring gear is being rotated counter-clockwise and the tape is loaded into the head drum.
Patent KR-900007632-B1 (KR)
Inventor: NILSSON BERNDT R
IPC: E06B9/266
Filed: 1985-04-12
Granted: 1990-10-17
Abstract: 내용 없음.
Patent KR-930010069-B1 (KR)
Inventor: ENOMOTO USUKE
IPC: H01L23/31
Filed: 1986-01-14
Granted: 1993-10-14
Abstract: 내용 없음.
Patent KR-930009377-B1 (KR)
Inventor: MATSUMOTO KAZUYUKI
IPC: B25J19/00
Filed: 1986-01-16
Granted: 1993-10-02
Abstract: 내용 없음.
Patent KR-890002806-B1 (KR)
Title: An alarm
Inventor: PARK GUNG-SIK
IPC: G08B21/00
Filed: 1986-07-01
Granted: 1989-07-31
Abstract: Peak voltage for heating and cleaning the gas detecting layer (2) at 400≰C is applied for 30-60 seconds and particular voltage (0.2-0.27V) for heating the detecting layer detect 80-90≰C to detect the CO gas. The period for this process is at least 150 seconds.  The output of semiconductor detecting device is compared to a reference voltage by a comparator (3) for checking whether the CO gas is higher than certain value in density.  One period delyaed signal and non-delayed signal are compared for preventing the detection of temporary high density CO gas.
Patent KR-920006648-B1 (KR)
Inventor: ENOMOTO MASAKI
IPC: B23C3/12
Filed: 1986-08-30
Granted: 1992-08-14
Abstract: 내용 없음.
Patent KR-880001182-B1 (KR)
Title: Method ans apparatus for producing hooks of hook-and-loop fasteners
Inventor: MURASAKI RYUICHI
IPC: D06C13/08
Filed: 1986-12-10
Granted: 1988-07-02
Abstract: Several parallel spaced stationary cutting comb teeth (22) of a stationary blade (18) are introduced into loops (12) from a faundation fabric (11) of a loop sheet (10) as the sheet is fed along a path.  The loops are cut on their legs near the heads of the respective loops by several movable cutting comb teeth (30) of a movable blade (19), producing a hook (26) from each severed loop. The severed leg and its respective loop move in and along an adjacent pair of spaced guide grooves (24) in the stationary blade.  The severed leg is then cut at a second point near the foundation fabric by reciprocating several parallel movable cutting comb teeth (33) of a second movable blade (20).
Patent KR-890004855-B1 (KR)
Title: Method extending the length of operation of a remote controller
Inventor: CHONG SUNG-SHIK
IPC: H04Q9/00
Filed: 1986-12-16
Granted: 1989-11-29
Abstract: The range is expanded by correcting error of the receiving signal. RAM for error correction is cleared and control operations according to receiving signals are executed when the received signal has no errors.  When a remote controller receives an errored signal, a certain number of errored data are recorded on RAM for error correction and then error correction is executed from high bit utilizing comparision to standard for bit checking with probability of 0.6.  The checked data are examined whether the data are corresponding to the key signal of the remote controller.
Patent KR-890003328-B1 (KR)
Title: Barrier for dental and medical instruments and appendages
Inventor: NIEUSMA DICK
IPC: A61C1/16
Filed: 1986-12-30
Granted: 1989-09-18
Abstract: An elongated sleeve and a ring-like element are mounted on one end of the sleeve.  The ring-like element is sufficiently rigid to define the periphery of the opening to the sleeve to permit an operator to grasp the same and pull the ring and sleeve over the instrument and appendages.  Pref. the unit is packaged in an enclosure attached to the ring-like element and severed from it so that one end of the sleeve can be held in one hand of the operator.  The other end to which the ring-like element is attached can be pulled over the instrument and its appendage.
Patent KR-950013285-B1 (KR)
Inventor: NAKAOKA KAZUHIDE
IPC: C23C10/08
Filed: 1985-09-26
Granted: 1995-11-02
Abstract: 내용 없음.
Patent KR-950009577-B1 (KR)
Inventor: GIBES DAVID C
IPC: H04M1/27
Filed: 1987-03-20
Granted: 1995-08-24
Abstract: 내용 없음.
Patent KR-900001754-B1 (KR)
Title: Yarn break detector for spinning and weaving machines
Inventor: MAKINO SHOZABUR
IPC: B65H63/032
Filed: 1987-04-30
Granted: 1990-03-19
Abstract: The device is for improving the detection precision with the simple constitution by averaging the induced potential of a pair of detection electrodes which induce the charged electricity on a thread, synchronously in a same phase, and operating a relay circuit by differentially amplifying each output signal.  When a thread (1) travels, the induction signal due to the commercial electric power and the detection signal corresponding to the electric charge on the thread are superposed onto the detection electrodes (2a,2b), and applied onto terminals (Pa,Pb).  Since the induction signals are synchronised in a same phase, the signals are offset.
Patent KR-900000044-B1 (KR)
Title: The address memory element for checking memory
Inventor: LEE HAG-MIN
IPC: G11C8/00
Filed: 1987-06-25
Granted: 1990-01-18
Abstract: The RAM having the READ/WRITE functions for corelated data includes an I/O designating unit (50) for controlling the transmission gate of a headword memory (30), the transmission gate of the unit memory array corresponding to the headword data and NOR gate (G5), and an I/ O adjuster (60) for adjusting the unit I/O adjuster (61) including NOR gates (G6,G7) and 3-state buffers (TB1,TB2) to correspond to the number of bits of the headword data.
Patent KR-940006549-B1 (KR)
Title: Auto-reverse device of auto reverse deck
Inventor: LEE KWON-YOL
IPC: G11B15/02
Filed: 1987-08-31
Granted: 1994-07-22
Abstract: The apparatus for detecting tape end and for shifting FR lever is deposited between a feeding reel and a take-up reel so that power transfer becomes easier and size becomes smaller. The auto-reverse mechanism comprises a tape state detector comprising forward and reverse running detection levers (1,2) and a running end detector (3), and a running end detection cam (4), a FR reversing unit for operating FR lever when the tape running end is detected, a power transfer unit for providing power to a take-up reel or a feeding reel according to the FR reversing unit, and an operating unit for providing power from an operation gear to a take-up reel or a feeding reel.
Patent KR-960002857-B1 (KR)
Inventor: AOKI MASAHIRO
IPC: A61P31/04
Filed: 1987-09-11
Granted: 1996-02-27
Abstract: 내용 없음.
Patent KR-900005003-B1 (KR)
Title: Manufacturing process of nonwoven fabric
Inventor: CHONG SOO-SONG
IPC: D04H1/498
Filed: 1987-12-26
Granted: 1990-07-16
Abstract: Nonwoven fabric sheets is mfd. by folding a first nonwoven fabric (I) and a second nonwoven fabric (II), and needle-punching the folded nonwoven fabric sheets to be 2000-2500 strands/cm2 density. (I) is mfd. by needle-punching aromatic polyester short staple web of below 10 deniers to be 400-600 strands/cm2 density, and heat-treating it at 15-250 deg. C for 8 hr or more. (II) is mfd. by needle-punching polyolefin short staple web of below 1.0 denier to be 400-600 strands/cm2 density. The sheets have a chemicals-resistance and heat- resistance.
Patent KR-970004469-B1 (KR)
Inventor: SORIMATCHI RYOOHEI
IPC: B26B13/02
Filed: 1988-02-12
Granted: 1997-03-28
Abstract: 요약없음
Patent KR-950005606-B1 (KR)
Title: Teletext data saving method using memory apparatus
Inventor: HWANG JU-CHOL
IPC: H04N7/08
Filed: 1988-05-19
Granted: 1995-05-27
Abstract: The method employs a unit for storing in memory the data signal decoded by a microcomputer from an inputted key signal; and a unit for processing the stored data in a control processor under a control of a color video display generator, processing it as the data in the color video display generator through a video memory, and after that, which three primary colors are made.
Patent KR-900008754-B1 (KR)
Inventor: ISHIHARA ICHIRO
IPC: H03F3/45
Filed: 1988-06-03
Granted: 1990-11-29
Abstract: 내용 없음.
Patent KR-960007318-B1 (KR)
Title: Polymer composition with a high impact resistance
Inventor: ROBINET JEAN-CLAUDE
IPC: C08L33/12
Filed: 1988-08-30
Granted: 1996-05-30
Abstract: A polymeric composition of at least one matrix polymer based on methyl methacrylate, at least one elastomeric latex, and at least one polymer based on fluorovinyledene, the amounts of each component specified relative to one another.
Patent KR-910006513-B1 (KR)
Inventor: KOSHIZKA ATSUO
IPC: H03K19/08
Filed: 1988-09-03
Granted: 1991-08-27
Abstract: 내용 없음.
Patent KR-950000208-B1 (KR)
Inventor: ALTHAUS WOLFGANG
IPC: B26B21/44
Filed: 1988-12-19
Granted: 1995-01-12
Abstract: 내용 없음.
Patent KR-910006023-B1 (KR)
Title: Composition for casting of hot plug of diesel engine
Inventor: KIM YOON-TAE
IPC: C22C33/08
Filed: 1988-12-31
Granted: 1991-08-09
Abstract: An alloy of hot plug for diesel engine consists  of  0.2-0.25 wt.% C, 0.1-1.0  wt.%  Si,  0.1-1.0  wt.%  Mn,  0.5-1.0  wt.%  Ni, 11.0-13.0 wt.% Cr, 0.75-1.25 wt.% Mo, 0.75-1.25  wt.%  W,  0.2-0.3 wt.% V,<= 0.04 wt.% P, <= 0.03 wt.%  S,  and  balance  Fe.  In  above composition, content of carbon and chromium can  be  specified  to 0.25-0.28  wt.%  and  10.5-12  wt.%,  respectively.  A  method  is characterized by melting a mixture of above compositions  at  1050 deg.C for 1 hr in air; oil-quenching;  after  maintaining  at  600 deg.C for 1 hr,  air-cooling.  Thus  perfect  tempered  martensite structure can be obtained  and  it  has  advantages  of  promoting productivity and reducing manufacturing cos.
Patent KR-0148998-B1 (KR)
Inventor: BORCK GERALD-WOLFGANG
IPC: B65D75/66
Filed: 1989-03-10
Granted: 1998-10-15
Abstract: 내용없음