公开(公告)号：KR1020040000526A

公开(公告)日：2004-01-07

申请号：KR1020020035006

申请日：2002-06-21

Applicant: 현대자동차주식회사 ,  한국분말야금(주)

Inventor： 정림호 ,  송광호 ,  오중석 ,  임종대 ,  장석균

IPC: C22C38/60

Abstract: PURPOSE: A wear resistant sintered alloy for valve seat is provided which improves wear resistance and formability by containing iron as a principal constituent, carbon, chromium, molybdenum, vanadium, tungsten, silicon, manganese and lead only without cobalt, and a manufacturing method thereof is provided. CONSTITUTION: The method comprises first process of press molding the blended alloy to a surface pressure of 5 to 8 tons/cm¬2 by blending a principal constituent of iron, 0.3 to 0.5 wt.% of carbon, 1.0 to 3.0 wt.% of chromium, 2.0 to 4.0 wt.% of molybdenum, 2.0 to 4.0 wt.% of vanadium, 5.0 to 7.0 wt.% of tungsten, 0.2 to 0.4 wt.% of sulfur, 0.2 to 0.5 wt.% of manganese and 10.0 to 15.0 wt.% of lead; second process of air cooling the sintered alloy after sintering the press molded alloy at a temperature of 1,140 to 1,180 deg.C after finishing the first process; third process of subzero cooling the air cooled sintered alloy to a temperature of -200 to -600 deg.C after finishing the second process; fourth process of impregnating the subzero cooled alloy with lead at a temperature of 450 to 550 deg.C after finishing the third process; and a process of manufacturing the wear resistant sintered alloy for valve seat by passing the lead impregnated alloy through barrel process at a temperature of 450 to 550 deg.C after finishing the fourth process.

Abstract translation: 目的：提供一种用于阀座的耐磨烧结合金，其通过以不含钴的碳，铬，钼，钒，钨，硅，锰和铅为主要成分来提高耐磨性和成形性，及其制造方法 被提供。 构成：该方法包括通过将铁的主要成分，0.3〜0.5重量％的碳，1.0〜3.0重量％的碳，1.0〜3.0重量％的碳， 铬，2.0〜4.0重量％的钼，2.0〜4.0重量％的钒，5.0〜7.0重量％的钨，0.2〜0.4重量％的硫，0.2〜0.5重量％的锰和10.0〜15.0 铅的重量％ 在完成第一工序之后，在1140〜1180℃的温度下烧结后，对烧结合金进行空气冷却的第二工序; 在完成第二工序之后，将空气冷却的烧结合金的低温冷却至-200〜-600℃的三次方法; 在完成第三次处理之后，在450℃至550℃的温度下浸渍具有铅的亚零冷却合金的第四工序; 以及在完成第四次处理之后，通过使引锭浸渍合金通过桶加工在450-550℃的温度下制造用于阀座的耐磨烧结合金的方法。

公开(公告)号：KR1020040000525A

公开(公告)日：2004-01-07

申请号：KR1020020035005

申请日：2002-06-21

Applicant: 현대자동차주식회사 ,  한국분말야금(주)

Inventor： 정림호 ,  송광호 ,  오중석 ,  임종대 ,  장석균

IPC: C22C38/12

Abstract: PURPOSE: A wear resistant sintered alloy for valve seat is provided which improves wear resistance by containing iron as a principal constituent, carbon, chromium, molybdenum, vanadium, tungsten, cobalt, silicon and manganese and simultaneously performing copper infiltration and sintering treatment, and a manufacturing method thereof is provided. CONSTITUTION: The method comprises first process of press molding the blended alloy to a surface pressure of 5 to 8 tons/cm¬2 by blending a principal constituent of iron, 0.8 to 1.2 wt.% of carbon, 2.0 to 5.0 wt.% of chromium, 5.0 to 7.0 wt.% of molybdenum, 3.0 to 5.0 wt.% of vanadium, 8.0 to 12.0 wt.% of tungsten, 0.2 to 0.5 wt.% of manganese and 4.0 to 6.0 wt.% of cobalt; second process of air cooling the pure copper infiltrated and sintered alloy after infiltrating 20 to 30 wt.% of pure copper for the weight of the valve seat into the press molded alloy and sintering the pure copper infiltrated alloy at the same time at a temperature of 1,140 to 1,180 deg.C after finishing the first process; third process of rapidly cooling the heat treated alloy after heat treating the copper infiltrated and sintered alloy to a temperature of 1,130 to 1,180 deg.C after finishing the second process; fourth process of annealing the rapidly cooled alloy to a temperature of 600 to 700 deg.C after finishing the third process; and a process of proceeding some processing works on the annealed alloy at an ordinary temperature after finishing the fourth process.

Abstract translation: 目的：提供一种用于阀座的耐磨烧结合金，其通过以铁作为主要成分，碳，铬，钼，钒，钨，钴，硅和锰，并同时进行铜浸渗和烧结处理，提高耐磨性，并且 提供其制造方法。 构成：该方法包括通过将铁的主要成分，0.8至1.2重量％的碳，2.0至5.0重量％的碳，2.0至5.0重量％的碳共混而将共混合金压制成5至8吨/厘米2的表面压力的第一工艺 铬，5.0〜7.0重量％的钼，3.0〜5.0重量％的钒，8.0〜12.0重量％的钨，0.2〜0.5重量％的锰和4.0〜6.0重量％的钴; 将纯铜渗透和烧结合金浸入20-30重量％的纯铜中，将阀座的重量浸入压制成型合金中，同时在同一温度下烧结纯铜浸渗合金， 完成第一工序后1,140〜1,180度; 在完成第二工序之后，将铜浸渗烧结合金热处理后的热处理合金快速冷却至1130〜1180℃的温度的第3工序; 完成第三工序后将快速冷却合金退火至600〜700℃的第四工序; 以及在完成第四工序之后在常温下对退火的合金进行一些加工工艺的过程。

公开(公告)号：KR1020030012260A

公开(公告)日：2003-02-12

申请号：KR1020010046222

申请日：2001-07-31

Applicant: 현대자동차주식회사

Inventor： 정림호

IPC: F02M55/02

Abstract: PURPOSE: A manufacturing process of an injector tube for a diesel engine is provided to improve airtightness when the tube is coupled to an injector by adding an annealing heat treatment process after a forming process and reducing the hardness of the injector tube. CONSTITUTION: In a manufacturing process of an injector tube composed of a drawing process(10), a forming process(20) and an after-treatment process(40), an annealing heat treatment process(30) is added after a forming process, and the hardness of the injector tube is reduced. Thus, the airtightness of the injector tube is improved.

Abstract translation: 目的：提供一种用于柴油发动机的喷射器管的制造工艺，以通过在成形工艺之后添加退火热处理工艺并降低喷射管的硬度来提高管与喷射器的连接的气密性。 构成：在由拉伸工序（10），成形工序（20）和后处理工序（40）构成的注射管的制造工序中，在成形工序之后加入退火热处理工序（30） 并且注射管的硬度降低。 因此，喷射管的气密性得到改善。

公开(公告)号：KR2019960023140U

公开(公告)日：1996-07-20

申请号：KR2019940037955

申请日：1994-12-29

Applicant: 현대자동차주식회사

Inventor： 정림호

IPC: F01N3/26

Abstract: 본고안의목적은초기배기가스를저감하기위하여촉매컨버어터를미리예열시켜촉매작용이증진되도록한 예열촉매컨버어터에장치를제공하는데있다. 이를실현하기위한본 고안은배기가스와촉매작용을일으켜무해한배기가스가배출되도록한 촉매컨버어터에있어서, 상기한촉매컨버어터에시동과동시에전자제어장치의전기적인신호로연료탱크의연료가분사되도록하는분사노즐과, 이분사노즐에서분사되는연료를전자제어장치의신호에의해점화가이루어지도록하여촉매의온도를예열시키도록설치되는점화플러그를포함하여이루어지는예열촉매컨버어터장치를특징으로한다.

公开(公告)号：KR100521578B1

公开(公告)日：2005-10-17

申请号：KR1020030041396

申请日：2003-06-25

Applicant: 현대자동차주식회사

Inventor： 정림호

IPC: C22C38/00

Abstract: 본 발명은 밸브 시트용 내마모 소결합금과 그 제조방법에 관한 것으로서, 철을 주성분으로 하여 다량의 크롬 및 코발트를 함유시키고 그 외에 탄소, 망간, 텅스텐 및 바나듐의 함량을 적절히 조절한 분말성형체에 다량의 동을 소결과 동시에 용침한 후 소려열처리하여 제조함으로써, 상대재인 밸브재와의 유사한 물성치로 밸브 시트 적용시에 밸브와의 매칭성이 증대될 수 있고, 결국 전체적인 마모량이 감소될 수 있는 밸브 시트용 내마모 소결합금과 그 제조방법에 관한 것이다.
이러한 본 발명의 소결합금은 소결과 동시에 구리를 용침한 비납함침 소결합금으로서, 기존 유해한 납을 함침하여서만 대응이 가능하던 건조 분위기의 연료에 적용이 가능하다.

公开(公告)号：KR100461304B1

公开(公告)日：2004-12-14

申请号：KR1020020035005

申请日：2002-06-21

Applicant: 현대자동차주식회사 ,  한국분말야금(주)

Inventor： 정림호 ,  송광호 ,  오중석 ,  임종대 ,  장석균

IPC: C22C38/12

Abstract: PURPOSE: A wear resistant sintered alloy for valve seat is provided which improves wear resistance by containing iron as a principal constituent, carbon, chromium, molybdenum, vanadium, tungsten, cobalt, silicon and manganese and simultaneously performing copper infiltration and sintering treatment, and a manufacturing method thereof is provided. CONSTITUTION: The method comprises first process of press molding the blended alloy to a surface pressure of 5 to 8 tons/cm¬2 by blending a principal constituent of iron, 0.8 to 1.2 wt.% of carbon, 2.0 to 5.0 wt.% of chromium, 5.0 to 7.0 wt.% of molybdenum, 3.0 to 5.0 wt.% of vanadium, 8.0 to 12.0 wt.% of tungsten, 0.2 to 0.5 wt.% of manganese and 4.0 to 6.0 wt.% of cobalt; second process of air cooling the pure copper infiltrated and sintered alloy after infiltrating 20 to 30 wt.% of pure copper for the weight of the valve seat into the press molded alloy and sintering the pure copper infiltrated alloy at the same time at a temperature of 1,140 to 1,180 deg.C after finishing the first process; third process of rapidly cooling the heat treated alloy after heat treating the copper infiltrated and sintered alloy to a temperature of 1,130 to 1,180 deg.C after finishing the second process; fourth process of annealing the rapidly cooled alloy to a temperature of 600 to 700 deg.C after finishing the third process; and a process of proceeding some processing works on the annealed alloy at an ordinary temperature after finishing the fourth process.

Abstract translation: 目的：提供一种用于阀座的耐磨烧结合金，其通过含有铁作为主要成分，提高耐磨性，碳，铬，钼，钒，钨，钴，硅和锰同时进行铜渗透和烧结处理， 提供了其制造方法。 本发明的方法包括：首先通过混合铁的主要成分，0.8-1.2重量％的碳，2.0-5.0重量％的氧化铝，将混合合金压制成5-8吨/ cm 2的表面压力， 的铬，5.0-7.0重量％的钼，3.0-5.0重量％的钒，8.0-12.0重量％的钨，0.2-0.5重量％的锰和4.0-6.0重量％的钴; 第二步，在将阀座重量的20至30重量％的纯铜浸入压制成型的合金中并同时烧结纯铜浸渍和烧结合金的同时在温度为 完成第一道工序后，为1,140至1,180摄氏度; 第三步骤，在完成第二步骤之后，将渗入铜的烧结合金热处理至1130至1180℃的温度之后，迅速冷却热处理后的合金; 第四步骤，在完成第三步骤之后，将快速冷却的合金退火至600-700℃的温度; 以及在完成第四过程之后在常温下对退火合金进行一些处理工艺的过程。

公开(公告)号：KR1020040001721A

公开(公告)日：2004-01-07

申请号：KR1020020037034

申请日：2002-06-28

Applicant: 현대자동차주식회사 ,  한국분말야금(주)

Inventor： 오중석 ,  송광호 ,  정림호 ,  임종대

IPC: C22C38/12

Abstract: PURPOSE: A wear resistant sintered alloy for valve seat is provided which improves wear resistance compared to existing sintered alloy for valve seat by performing heat treatment after changing composition for the alloy and infiltrating copper into the alloy simultaneously, and a manufacturing method thereof is provided. CONSTITUTION: The method comprises first step of press molding the blended material to a surface pressure of 5 to 8 ton/cm¬2 by blending a principal constituent of iron, 1.1 to 1.6 wt.% of carbon, 3.0 to 5.0 wt.% of chromium, 2.0 to 4.0 wt.% of molybdenum, 3.0 to 5.0 wt.% of vanadium, 6.5 to 9.5 wt.% of tungsten, 2.0 to 3.5 wt.% of cobalt, 0.2 to 0.6 wt.% of silicon, 0.1 to 1.0 wt.% of boron nitride, 0.2 to 0.4 wt.% of sulfur and 0.2 to 0.5 wt.% of manganese; second step of air cooling the sintered material after sintering the press molded material to a temperature of 1,150 to 1,200 deg.C after finishing the first step; third step of infiltrating 12 to 18 wt.% of pure copper into the air cooled material at a temperature of 1,080 to 1,100 deg.C after finishing the second step; fourth step of oil cooling the pure copper infiltrated material after maintaining the pure copper infiltrated material at a temperature of 850 to 880 deg.C for 30 to 50 min after finishing the third step; and fifth step of tempering the oil cooled material to a temperature of 600 to 650 deg.C after finishing the fourth step.

Abstract translation: 目的：提供一种用于阀座的耐磨烧结合金，与现有的阀座烧结合金相比，通过在将合金和渗入铜的组合物同时改变成合金之后进行热处理而提高耐磨性，并提供其制造方法。 构成：该方法包括通过将铁的主要成分，1.1〜1.6重量％的碳，3.0〜5.0重量％的碳，3.0〜5.0重量％的碳，通过将共混材料压制成表面压力为5〜8吨/ 铬，2.0〜4.0重量％的钼，3.0〜5.0重量％的钒，6.5〜9.5重量％的钨，2.0〜3.5重量％的钴，0.2〜0.6重量％的硅，0.1〜1.0 氮化硼的重量百分比，0.2-0.4重量％的硫和0.2-0.5重量％的锰; 在完成第一步骤之后，将压制成型材料烧结后的烧结材料的空气冷却的第二步骤为1150〜1200℃的温度; 在完成第二步之后，在1080〜1100℃的温度下将12〜18重量％的纯铜浸入空气冷却材料中; 在完成第三步之后将纯铜渗透材料在850〜880℃的温度保持30〜50分钟后，冷却纯铜浸渗材料的第四步骤; 以及在完成第四步之后将油冷却材料回火至温度为600至650℃的第五步骤。

公开(公告)号：KR1020020056549A

公开(公告)日：2002-07-10

申请号：KR1020000085931

申请日：2000-12-29

Applicant: 현대자동차주식회사

Inventor： 정림호

IPC: B24C1/10

CPC classification number: B24C1/10 ,  B24C3/32

Abstract: PURPOSE: A jig for a shot peening of a connecting rod is provided to maximize an effect of the shot peening by fixing the connecting rod to the jig in order to carry out the shot peening. CONSTITUTION: At least one supporting block(30) is provided on a base plate(1) and a horizontal supporting member(21), respectively, at a 120 degree. The supporting block include one end formed on a fixing recess(31) closely fitted into by a large end of a connecting rod, and the other end fixed on the base plate(1) and a horizontal supporting member using a fastening means such as a screw. The connecting rod is closely fitted into the one end of the supporting block on its large end, and thereby maintaining the other end upward. In this state, an I-section of the connecting rod is subjected to a shot peening.

Abstract translation: 目的：提供用于连杆的喷丸硬化的夹具，以通过将连杆固定到夹具来最大化喷丸硬化的效果，以进行喷丸硬化。 构成：至少一个支撑块（30）分别以120度设置在基板（1）和水平支撑构件（21）上。 支撑块包括形成在由连杆的大端紧密配合的固定凹部（31）上的一端，并且固定在基板（1）上的另一端和使用紧固装置的水平支撑构件 拧。 连杆紧紧配合在其大端的支撑块的一端，从而将另一端向上保持。 在这种状态下，对连杆的I部进行喷丸处理。

公开(公告)号：KR1019990049340A

公开(公告)日：1999-07-05

申请号：KR1019970068268

申请日：1997-12-12

Applicant: 현대자동차주식회사

Inventor： 정림호

IPC: C22C33/02

Abstract: 본 발명은 자동차용 자동 변속기에 있어서, 토크 컨버터의 스플라인 허브(spline hub)용 철계 소결합금 및 이를 이용한 스플라인 허브의 제조방법에 관한 것이다. 보다 상세하게는 구리, 니켈, 몰리브덴 및 탄소 등의 합금 분말이 철 분말에 첨가된 스플라인 허브용 철계 소결합금과 이러한 철계 소결합금 분말을 성형, 소결, 교정 및 열처리하는 과정을 포함하는 스플라인 허브의 제조방법에 관한 것이다. 본 발명의 소결합금으로 스플라인 허브를 제조할 경우 경량화할 수 있다. 또한, 본 발명의 제조방법은 스틸재를 사용하던 기존의 제조방법에 비해 공정이 단축되어 생산성을 향상시킬 수 있으며, 원가를 절감시킬 수 있는 우수한 제조방법이다.

公开(公告)号：KR1019990049334A

公开(公告)日：1999-07-05

申请号：KR1019970068262

申请日：1997-12-12

Applicant: 현대자동차주식회사

Inventor： 정림호

IPC: B22F5/00

Abstract: 본 발명은 자동차용 자동 변속기(automatic transmission)의 토크 컨버터(torque-converter)의 구성부품인 아우터 레이스(outer race)의 제조방법에 관한 것으로서, 탄소(C), 몰리브덴(Mo) 및 구리(Cu) 등의 원소가 첨가된 철 분말을 혼합한 뒤 성형, 1차 소결, 재가압, 2차 소결, 정형, 침탄 열처리, 가공 및 스테이터(stator) 압입 후 재가공하는 과정들을 포함하는 아우터 레이스의 제조방법에 관한 것이다. 본 발명의 제조방법은 스틸(steel)재를 사용하던 기존의 방법에 비해 제조공정이 단축되어 생산성을 향상시킬 수 있으며, 재료의 수율이 좋아 아우터 레이스의 원가를 절감시킬 수 있는 우수한 제조방법이다. 또한 본 발명의 방법으로 제조된 아우터 레이스는 기존의 아우터 레이스에 비해 생산원가가 절감될 수 있으며, 가벼워 자동차용 자동변속기의 토크 컨버터 부품으로 유용하게 사용될 수 있다.