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公开(公告)号：KR100461305B1
公开(公告)日：2004-12-14
申请号：KR1020020035006
申请日：2002-06-21
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性烧结合金，其通过仅含有铁作为主要成分，仅用钴而不改变碳，铬，钼，钒，钨，硅，锰和铅而提高耐磨性和可成形性，及其制造方法 被提供。 构成：该方法包括：通过混合铁的主要成分，0.3-0.5重量％的碳，1.0-3.0重量％的氧化铝，将混合合金压制成5至8吨/ cm 2的表面压力 的铬，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重量％ 铅的重量百分比; 在完成第一工序后，在1140〜1180℃的温度下对压制成形的合金进行烧结之后，对烧结合金进行空冷的第二工序; 第二工序结束后，将空冷式烧结合金冷却至零下零度以下的第三工序; 第四步骤，在完成第三步骤之后，在450至550℃的温度下用铅浸渍零下冷却的合金; 以及在完成第四工艺之后，通过使铅浸渍合金在450至550℃的温度下通过桶形工艺来制造用于阀座的耐磨烧结合金的工艺。
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公开(公告)号：KR100461304B1
公开(公告)日：2004-12-14
申请号：KR1020020035005
申请日：2002-06-21
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。
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公开(公告)号：KR1020040001721A
公开(公告)日：2004-01-07
申请号：KR1020020037034
申请日：2002-06-28
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。
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公开(公告)号：KR100461306B1
公开(公告)日：2004-12-14
申请号：KR1020020035007
申请日：2002-06-21
IPC: C22C38/60
CPC classification number: C22C38/22 , C22C33/0228 , C22C33/0242 , C22C33/0278 , C22C38/04 , C22C38/24 , C22C38/30 , C22C38/60
Abstract: A sintered alloy having an improved wear resistance and a workability for a valve seat. The alloy contains iron as a main component, carbon, silicon, chromium, molybdenum, cobalt, maganese, lead, vanadium, advantageously boron nitride, and tungsten. The strength, wear resistance, and material properties are improved by a sub-zero treatment. Sintered alloy with wear resistance used for a valve seat comprises Fe as a main component, C of 1.2 to 1.7 wt %, Cr of 3.5 to 5.0 wt %, Mo of 2.0 to 4.0 wt %, V of 3.0 to 5.0 wt %, W of 7.0 to 10.0 wt %, Co of 2.0 to 3.5 wt %, boron nitride of 0.1 to 1.0 wt %, S of 0.2 to 0.4 wt %, Mn of 0.2 to 0.5 wt %, advantageously 0.2 to 0.6% Si, and Pb of 10.0 to 15.0 wt %. Sintered alloy for an valve seat is manufactured by a sub-zero treatment so that the amount of metallic particles separated from a base matrix decreases and a size of the separated metallic particle becomes small.
Abstract translation: 一种烧结合金，具有改善的耐磨性和用于阀座的可加工性。 该合金含有铁作为主要组分，碳，硅，铬，钼，钴，锰，铅，钒，有利的是氮化硼和钨。 通过零度处理改善强度，耐磨性和材料性能。 用于阀座的具有耐磨性的烧结合金包含Fe作为主要组分，1.2至1.7重量％的C，3.5至5.0重量％的Cr，2.0至4.0重量％的Mo，3.0至5.0重量％的V，W 7.0至10.0重量％的Co，2.0至3.5重量％的Co，0.1至1.0重量％的氮化硼，0.2至0.4重量％的S，0.2至0.5重量％的Mn，有利地0.2至0.6重量％的Si和 10.0至15.0重量％。 用于阀座的烧结合金通过零度处理制造，使得从基体分离的金属颗粒的量减少并且分离的金属颗粒的尺寸变小。
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公开(公告)号：KR1020040000526A
公开(公告)日：2004-01-07
申请号：KR1020020035006
申请日：2002-06-21
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。
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Patent Agency Ranking
公开(公告)号：KR1020040000525A
公开(公告)日：2004-01-07
申请号：KR1020020035005
申请日：2002-06-21
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。
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公开(公告)号：KR1020040000527A
公开(公告)日：2004-01-07
申请号：KR1020020035007
申请日：2002-06-21
IPC: C22C38/60
CPC classification number: C22C38/22 , C22C33/0228 , C22C33/0242 , C22C33/0278 , C22C38/04 , C22C38/24 , C22C38/30 , 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, 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, 1.2 to 1.7 wt.% of carbon, 3.5 to 5.0 wt.% of chromium, 2.0 to 4.0 wt.% of molybdenum, 3.0 to 5.0 wt.% of vanadium, 7.0 to 10.0 wt.% of tungsten, 2.0 to 3.5 wt.% of cobalt, 0.1 to 1.0 wt.% of boron nitride, 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，其通过以铁，铬，钼，钒，钨，硅，锰和铅为主要成分提高耐磨性和成形性，并提供其制造方法。 构成：该方法包括通过将铁的主要成分，1.2〜1.7重量％的碳，3.5〜5.0重量％的碳，3.5〜5.0重量％的碳，将共混合金压制成5〜8吨/ 铬，2.0〜4.0重量％的钼，3.0〜5.0重量％的钒，7.0〜10.0重量％的钨，2.0〜3.5重量％的钴，0.1〜1.0重量％的氮化硼，0.2〜 0.4重量％的硫，0.2〜0.5重量％的锰和10.0〜15.0重量％的铅; 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。
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公开(公告)号：KR101363024B1
公开(公告)日：2014-02-14
申请号：KR1020110050202
申请日：2011-05-26
Applicant: 한국분말야금(주)
Abstract: 본 발명에 따른 고온 내마모용 철계 소결 합금은, 내연기관의 엔진에 채용되는 것으로서 흡배기 밸브의 개폐시, 상기 밸브와의 기밀성을 유지하여 연소실 내의 열효율을 증진시키기 위한 엔진 밸브 시이트에 적용되는 고온 내마모용 철계 소결 합금에 있어서, 기능부위인 시트 파트(seat part)와 비기능 부위인 지지 파트(support part)를 포함하며, 상기 시트 파트는 솔바이트(Sorbite)와 베이나이트(bainite)가 혼합된 기지조직에 Co계 경질 입자상 및 MnS 상이 균일하게 분산되어 있는 조직이며, 상기 지지 파트는 베이나이트 기지 조직에 미세한 복합 탄화물이 분산되어 있는 조직이며, 상기 시트 파트는, 크롬(Cr) 0.5~2.0 wt%, 몰리브덴(Mo) 3.5~7.5wt%, 규소(Si) 0.1~2.0wt%, 코발트(Co) 11.0~18.0wt%, 니켈(Ni) 0.5~2.0wt%, 망간(Mn) 0.3~1.65wt%, 황(S) 0.15~0.95wt%, 탄소(C) 0.6~1.0wt%, 2.0wt% 이하의 기타성분을 포함하며 나머지는 Fe로 구성되며, 상기 지지 파트는, 크롬(Cr) 2.0~4.0wt%, 몰리브덴(Mo) 0.2~0.4wt%, 탄소(C) 0.7~1.1wt%, 2.0wt% 이하의 기타성분을 포함하며 나머지는 Fe로 구성된 것을 특징으로 한다.
Abstract translation: 根据本发明的用于耐磨高温基于铁基烧结合金中，如在高温下的内燃机所使用和打开和关闭进气和排气阀的情况下，施加到发动机阀座，所述阀的机密性，提高在燃烧室中的热效率 一个是在磨损的铁基烧结合金中，座椅一部分的功能性位点（座位部分）和非功能性部分，和一个支撑部（支撑部），所述座椅部分刷字节（索氏）和贝氏体（贝氏体）混合 其中，所述支撑部为在贝氏体基体组织中分散有微细复合碳化物的结构，所述片部由铬（Cr）0.5〜2.0重量％ ％，钼（Mo）3.5〜7.5wt％，硅（Si）0.1〜2.0重量％，钴（Co）11.0〜18.0wt％，镍（Ni）0.5〜2.0重量％，锰（Mn）0.3〜1.65wt ，硫（S）0.15〜0.95重量％，碳（C）0.6〜1.0重量％，碳2.0重量％ 包括其它组分，其余为Fe，其中所述支撑部分，铬（Cr）2.0〜4.0wt％，钼（Mo）0.2〜0.4重量％，碳（C）0.7〜= 1.1％，2.0重量％ 和其他组件，其余的是铁。
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公开(公告)号：KR101165074B1
公开(公告)日：2012-07-12
申请号：KR1020100004489
申请日：2010-01-18
Applicant: 한국분말야금(주)
Abstract: 본 발명에 따른 소결 합금은, 내연기관 엔진의 타이밍 시스템의 부품으로서 크랭크 샤프트에 조립되어 체인과 연결되어 캠에 동력을 전달하는 스프로켓-크랭크 샤프트(SPROCKET-CRANK/SHAFT)용 소결 합금에 있어서 1.0wt% 내지 4.0wt%의 니켈(Ni), 0.5wt% 내지 2.0wt%의 몰리브덴(Mo), 0.3wt% 내지 0.5wt%의 탄소(C), 2.0wt% 내지 6.0wt%의 구리(Cu), 0.5wt% 내지 2.0wt%의 황화 망간(MnS)을 포함하며, 나머지는 철(Fe) 및 기타 불가피한 불순물로 이루어진 것을 특징으로 한다.
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公开(公告)号：KR1020110084763A
公开(公告)日：2011-07-26
申请号：KR1020100004489
申请日：2010-01-18
Applicant: 한국분말야금(주)
CPC classification number: B22F5/08 , B22F3/16 , B22F3/24 , B22F2003/248 , B22F2303/15
Abstract: PURPOSE: A sintered alloy for a sprocket-crank shaft and a manufacturing method of a sprocket-crank shaft are provided to improve abrasion-resistance, shock-resistance, and torsional strength. CONSTITUTION: A sintered alloy for a sprocket-crank shaft is composed of Nickel 1.0~4.0 weight%, Molybdenum 0.5~2.0 weight%, Carbon 0.3~0.5 weight%, Copper 2.0~6.0 weight%, Manganese Sulfide 0.5~2.0 weight%, Iron, and inevitable impurities. A sprocket-crank shaft is assembled in a crank shaft and is connected to a chain. The sprocket-crank shaft transfers power.
Abstract translation: 目的：提供一种用于链轮曲柄轴的烧结合金和链轮曲轴的制造方法，以提高耐磨性，抗冲击性和扭转强度。 构成：用于链轮曲轴的烧结合金由镍1.0〜4.0重量％，钼0.5〜2.0重量％，碳0.3〜0.5重量％，铜2.0〜6.0重量％，硫化锰0.5〜2.0重量％组成， 铁和不可避免的杂质。 链轮曲柄轴组装在曲轴中并连接到链条上。 链轮曲柄轴传递动力。
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