[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

BR9907397A - Peça de metal em pó, processo para produzir a mesma e mistura de pós metálicos - Google Patents

Peça de metal em pó, processo para produzir a mesma e mistura de pós metálicos

Info

Publication number
BR9907397A
BR9907397A BR9907397-8A BR9907397A BR9907397A BR 9907397 A BR9907397 A BR 9907397A BR 9907397 A BR9907397 A BR 9907397A BR 9907397 A BR9907397 A BR 9907397A
Authority
BR
Brazil
Prior art keywords
weight
mixture
produce
steel powder
piece
Prior art date
Application number
BR9907397-8A
Other languages
English (en)
Inventor
Sundaram Lakshmi Narasimhan
Heron Rodrigues
Yushu Wang
Original Assignee
Eaton Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Corp filed Critical Eaton Corp
Publication of BR9907397A publication Critical patent/BR9907397A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F2003/023—Lubricant mixed with the metal powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)

Abstract

"PEçA DE METAL EM Pó, PROCESSO PARA PRODUZIR A MESMA E MISTURA DE PóS METáLICOS". Uma mistura homogênea de metais em pó para produzir uma peça de metal em pó especialmente um inserto de sede de válvula. A mistura inclui 15 a 30% em peso de um pó de aço para válvula, 0 a 10 % em peso de níquel, 0 a 5% em peso de cobre, 5 a 15% em peso de um pó de liga de ferro, 0 a 15% em peso de um pó de aço-ferramenta, 0,5 a 5% em peso de um lubrificante sólido, 0,5 a 2% em peso de grafite, 0,3 a 1,0% de um lubrificante temporário, e o complemento sendo substancialmente um pó de aço de baixa liga contendo de 0,6 a 2,0% em peso de molibdênio, 0 a 5% em peso de níquel, e 0 a 3,0% em peso de cobre. A presente invenção provê resistência a desgaste de alta temperatura e corrosão melhoradas em relação a materiais da técnica anterior bem como usinabilidade melhorada. A mistura homogênea da presente invenção provê um material de densidade relativamente alta que permite uma técnica de prensagem e sinterização simples.
BR9907397-8A 1998-11-19 1999-11-18 Peça de metal em pó, processo para produzir a mesma e mistura de pós metálicos BR9907397A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/196,007 US6139598A (en) 1998-11-19 1998-11-19 Powdered metal valve seat insert

Publications (1)

Publication Number Publication Date
BR9907397A true BR9907397A (pt) 2000-10-24

Family

ID=22723746

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9907397-8A BR9907397A (pt) 1998-11-19 1999-11-18 Peça de metal em pó, processo para produzir a mesma e mistura de pós metálicos

Country Status (8)

Country Link
US (2) US6139598A (pt)
EP (1) EP1002883B1 (pt)
JP (2) JP2000160307A (pt)
KR (1) KR100476899B1 (pt)
CN (2) CN100374605C (pt)
BR (1) BR9907397A (pt)
DE (1) DE69906221T2 (pt)
PL (1) PL191887B1 (pt)

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6139598A (en) * 1998-11-19 2000-10-31 Eaton Corporation Powdered metal valve seat insert
JP3346321B2 (ja) * 1999-02-04 2002-11-18 三菱マテリアル株式会社 高強度Ｆｅ基焼結バルブシート
JP4183346B2 (ja) * 1999-09-13 2008-11-19 株式会社神戸製鋼所 粉末冶金用混合粉末ならびに鉄系焼結体およびその製造方法
US6485540B1 (en) * 2000-08-09 2002-11-26 Keystone Investment Corporation Method for producing powder metal materials
US6679932B2 (en) 2001-05-08 2004-01-20 Federal-Mogul World Wide, Inc. High machinability iron base sintered alloy for valve seat inserts
KR20030021916A (ko) * 2001-09-10 2003-03-15 현대자동차주식회사 내마모성이 강화된 밸브 시이트용 소결합금재 조성물 및그의 제조방법
US6599345B2 (en) 2001-10-02 2003-07-29 Eaton Corporation Powder metal valve guide
US6676724B1 (en) 2002-06-27 2004-01-13 Eaton Corporation Powder metal valve seat insert
KR20040001721A (ko) * 2002-06-28 2004-01-07 현대자동차주식회사 밸브 시트용 내마모 소결합금과 그 제조방법
KR100701812B1 (ko) * 2002-07-01 2007-04-02 히타치 긴조쿠 가부시키가이샤 자기 윤활성을 갖는 슬라이딩 부품용 재료 및 피스톤 링용선재
JP3926320B2 (ja) * 2003-01-10 2007-06-06 日本ピストンリング株式会社 鉄基焼結合金製バルブシートおよびその製造方法
US6702905B1 (en) 2003-01-29 2004-03-09 L. E. Jones Company Corrosion and wear resistant alloy
US7235116B2 (en) * 2003-05-29 2007-06-26 Eaton Corporation High temperature corrosion and oxidation resistant valve guide for engine application
DE10352003A1 (de) * 2003-11-07 2005-06-09 Robert Bosch Gmbh Ventil zum Steuern von Fluiden mit multifunktionalem Bauteil
US7094474B2 (en) * 2004-06-17 2006-08-22 Caterpillar, Inc. Composite powder and gall-resistant coating
TWI281505B (en) * 2004-06-29 2007-05-21 Kobe Steel Ltd Excellent corrosion resistance steel for ship
KR101637546B1 (ko) 2008-12-22 2016-07-08 회가내스 아베 (피유비엘) 기계가공성 향상 조성물
KR101516852B1 (ko) * 2009-04-28 2015-05-04 다이호 고교 가부시키가이샤 납프리 구리계 소결 슬라이딩 재료 및 슬라이딩 부품
CN101590524B (zh) * 2009-06-23 2013-11-20 诸城市同翔机械有限公司 用于高强度粉末冶金气门导管材料的配制原料
US8257462B2 (en) 2009-10-15 2012-09-04 Federal-Mogul Corporation Iron-based sintered powder metal for wear resistant applications
JP5958144B2 (ja) * 2011-07-26 2016-07-27 Ｊｆｅスチール株式会社 粉末冶金用鉄基混合粉および高強度鉄基焼結体ならびに高強度鉄基焼結体の製造方法
JP2015528850A (ja) * 2012-02-15 2015-10-01 ジーケーエヌ シンター メタルズ、エル・エル・シー 固体潤滑剤を含む粉末金属及びそれで作られた粉末金属スクロール圧縮機
CN102672164A (zh) * 2012-06-07 2012-09-19 太仓市锦立得粉末冶金有限公司 一种粉末冶金
CN102756124B (zh) * 2012-06-21 2014-04-02 芜湖禾丰离合器有限公司 一种粉末冶金汽车离合器从动盘毂芯及其制作方法
CN102773484B (zh) * 2012-06-30 2014-04-09 安徽省繁昌县皖南阀门铸造有限公司 一种粉末冶金制球形止回阀阀体的方法
CN102773482B (zh) * 2012-06-30 2014-05-21 安徽省繁昌县皖南阀门铸造有限公司 一种粉末冶金制蝶阀阀杆的方法
CN102773487B (zh) * 2012-06-30 2014-06-11 安徽省繁昌县皖南阀门铸造有限公司 一种止回阀阀瓣的粉末冶金制备方法
CN102773485B (zh) * 2012-06-30 2014-02-19 安徽省繁昌县皖南阀门铸造有限公司 一种逆止阀阀芯的粉末冶金制备方法
DE102012013226A1 (de) 2012-07-04 2014-01-09 Bleistahl-Produktions Gmbh & Co Kg Hochwärmeleitender Ventilsitzring
US8940110B2 (en) 2012-09-15 2015-01-27 L. E. Jones Company Corrosion and wear resistant iron based alloy useful for internal combustion engine valve seat inserts and method of making and use thereof
CN102909373A (zh) * 2012-09-15 2013-02-06 安徽省怀远县尚冠模具科技有限公司 一种模具冲压顶杆的制备方法
CN102994867B (zh) * 2012-09-29 2016-01-20 合肥康龄养生科技有限公司 一种逆止阀阀芯的铸造成型制备方法
CN102921942B (zh) * 2012-10-17 2015-01-14 宁波拓发汽车零部件有限公司 减震器导向器及其制备方法
CN102994881A (zh) * 2012-11-22 2013-03-27 宁波市群星粉末冶金有限公司 一种粉末冶金法兰
CN102994882A (zh) * 2012-11-22 2013-03-27 宁波市群星粉末冶金有限公司 一种粉末冶金法兰制备方法
CN103014502A (zh) * 2012-11-22 2013-04-03 宁波市群星粉末冶金有限公司 汽油发动机活塞粉末冶金材料及制备方法
CN103008642B (zh) * 2012-11-25 2015-12-09 安徽普源分离机械制造有限公司 止回阀的阀杆粉末冶金制造方法
CN103008649B (zh) * 2013-01-07 2014-05-07 鞍钢重型机械有限责任公司 一种电动工具用混合粉及其制备方法
CN103233166B (zh) * 2013-03-30 2015-12-23 安徽省恒宇粉末冶金有限公司 一种粉末冶金扇形齿轮及其制备方法
CN103157796B (zh) * 2013-04-10 2014-11-05 湖南环宇粉末冶金有限公司 一种粉末冶金工具钢的成型方法
CN103357865B (zh) * 2013-06-21 2016-12-28 安徽吉思特智能装备有限公司 一种增强掺钛粉末冶金材料及其制备方法
US9556761B2 (en) 2013-09-05 2017-01-31 Tpr Co., Ltd. Valve seat
CN103572163A (zh) * 2013-10-10 2014-02-12 铜陵国方水暖科技有限责任公司 一种粉末冶金阀座嵌件及其制备方法
CN103537693A (zh) * 2013-10-11 2014-01-29 芜湖市鸿坤汽车零部件有限公司 一种粉末冶金耐磨轴承材料及其制备方法
CN103556057A (zh) * 2013-10-11 2014-02-05 芜湖市鸿坤汽车零部件有限公司 一种粉末冶金滑动轴承及其制备方法
CN103556072A (zh) * 2013-10-11 2014-02-05 芜湖市鸿坤汽车零部件有限公司 一种含铬粉末冶金合金及其制备方法
CN103909271A (zh) * 2013-12-19 2014-07-09 浙江中达精密部件股份有限公司 高性能铜-镍基粉末冶金多孔含油轴承及其生产工艺
CN104561834A (zh) * 2014-12-26 2015-04-29 济源市金诚科技有限公司 硬质合金钢及其制备方法
RU2724776C2 (ru) 2015-02-03 2020-06-25 Хеганес Аб (Пабл) Порошковая металлическая композиция для легкой механической обработки
CN104928599A (zh) * 2015-03-29 2015-09-23 安徽同丰橡塑工业有限公司 一种用于制作汽门座圈的材料的配方
JP2017004992A (ja) 2015-06-04 2017-01-05 株式会社神戸製鋼所 圧粉磁心用混合粉末および圧粉磁心
DE102017202585A1 (de) * 2016-02-17 2017-08-17 Mahle International Gmbh Brennkraftmaschine mit zumindest einem Zylinder und mit zumindest zwei Hohlkopfventilen
DE102016222280A1 (de) * 2016-11-14 2018-05-17 Man Diesel & Turbo Se Gaswechselventil für eine Brennkraftmaschine und Brennkraftmaschine
US20180169751A1 (en) * 2016-12-16 2018-06-21 Federal-Mogul Llc Thermometric metallurgy materials
US11305346B2 (en) * 2017-04-27 2022-04-19 Federal-Mogul Valvetrain Gmbh Poppet valve and method of its manufacture
CN109136774A (zh) * 2017-06-28 2019-01-04 宜兴市韦德同机械科技有限公司 一种精密过滤器用拖轮材料
CN107838413B (zh) * 2017-09-30 2021-03-16 东风商用车有限公司 一种重型发动机粉末冶金阀座材料及其制备方法
US20210262050A1 (en) * 2018-08-31 2021-08-26 Höganäs Ab (Publ) Modified high speed steel particle, powder metallurgy method using the same, and sintered part obtained therefrom
CN113118441A (zh) * 2019-12-30 2021-07-16 吉凯恩粉末冶金(仪征)有限公司 一种高性能汽车零部件粉末冶金件及其制备方法
CN111500972B (zh) * 2020-04-30 2022-05-06 中国航发哈尔滨东安发动机有限公司 一种x53材料氰化工艺方法
CN113061817B (zh) * 2021-02-07 2022-05-10 浙江吉利控股集团有限公司 一种气门座圈、气门座圈的制备方法、甲醇发动机及汽车
US11988294B2 (en) 2021-04-29 2024-05-21 L.E. Jones Company Sintered valve seat insert and method of manufacture thereof
FR3133331A1 (fr) * 2022-03-11 2023-09-15 Renault S.A.S Poudre en matériau composite métallique pour projection thermique et procédé de fabrication d’une première pièce sur une deuxième pièce à partir d’une telle poudre

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130843B2 (pt) * 1971-12-22 1976-09-03
JPS5413005A (en) * 1977-06-30 1979-01-31 Toshiba Corp Sintered vane for rotary compressor
JPS55164060A (en) * 1979-05-07 1980-12-20 Nippon Piston Ring Co Ltd Abrasion resistant iron-based sintered alloy material
JPS5813619B2 (ja) * 1979-05-17 1983-03-15 日本ピストンリング株式会社 内燃機関用耐摩耗性鉄系焼結合金材
US4393563A (en) * 1981-05-26 1983-07-19 Smith David T Cold forced sintered powder metal annular bearing ring blanks
JPS59145756A (ja) * 1983-02-08 1984-08-21 Hitachi Powdered Metals Co Ltd 内燃機関の動弁機構部材用焼結合金の製造方法
AU572425B2 (en) * 1983-07-01 1988-05-05 Sumitomo Electric Industries, Ltd. Valve seat insert
JPS60174858A (ja) * 1984-02-21 1985-09-09 Mitsubishi Metal Corp コンプレツサのベ−ン部材用Ｆｅ基焼結合金
JPS60228656A (ja) * 1984-04-10 1985-11-13 Hitachi Powdered Metals Co Ltd 鉄系焼結耐摩耗性材料とその製造法
US4671491A (en) * 1984-06-12 1987-06-09 Sumitomo Electric Industries, Ltd. Valve-seat insert for internal combustion engines and its production
US5041158A (en) * 1986-10-29 1991-08-20 Eaton Corporation Powdered metal part
US4724000A (en) * 1986-10-29 1988-02-09 Eaton Corporation Powdered metal valve seat insert
JP2773747B2 (ja) * 1987-03-12 1998-07-09 三菱マテリアル株式会社 Ｆｅ基焼結合金製バルブシート
JPH07103451B2 (ja) * 1987-05-02 1995-11-08 日産自動車株式会社 耐摩耗性鉄基焼結合金
GB8723818D0 (en) * 1987-10-10 1987-11-11 Brico Eng Sintered materials
JPH0832934B2 (ja) * 1989-01-24 1996-03-29 萩下 志朗 金属間化合物の製法
US5221373A (en) * 1989-06-09 1993-06-22 Thyssen Edelstahlwerke Ag Internal combustion engine valve composed of precipitation hardening ferritic-pearlitic steel
JP3073754B2 (ja) * 1989-08-02 2000-08-07 日立金属株式会社 エンジンバルブ用耐熱鋼
DE3935955C1 (pt) * 1989-10-27 1991-01-24 Mtu Muenchen Gmbh
US5051232A (en) * 1990-01-16 1991-09-24 Federal-Mogul Corporation Powdered metal multiple piece component manufacturing
KR920007937B1 (ko) * 1990-01-30 1992-09-19 현대자동차 주식회사 밸브시트용 철(Fe)계 소결합금
US5009842A (en) * 1990-06-08 1991-04-23 Board Of Control Of Michigan Technological University Method of making high strength articles from forged powder steel alloys
GB9021767D0 (en) * 1990-10-06 1990-11-21 Brico Eng Sintered materials
JP2713658B2 (ja) * 1990-10-18 1998-02-16 日立粉末冶金株式会社 焼結耐摩摺動部材
US5217683A (en) * 1991-05-03 1993-06-08 Hoeganaes Corporation Steel powder composition
US5154881A (en) * 1992-02-14 1992-10-13 Hoeganaes Corporation Method of making a sintered metal component
US5271683A (en) * 1992-07-29 1993-12-21 Wagner Spray Tech Corporation Roller arm guide for hand-held paint gun
US5413073A (en) * 1993-04-01 1995-05-09 Eaton Corporation Ultra light engine valve
JPH06346110A (ja) * 1993-06-11 1994-12-20 Mitsubishi Materials Corp 耐摩耗性のすぐれたＦｅ基焼結合金製バルブガイド部材
SE9401623D0 (sv) * 1994-05-09 1994-05-09 Hoeganaes Ab Sintered products having improved density
EP0722796B1 (en) * 1995-01-17 2001-09-19 Sumitomo Electric Industries, Ltd. Process for producing heat-treated sintered iron alloy part
US5674449A (en) * 1995-05-25 1997-10-07 Winsert, Inc. Iron base alloys for internal combustion engine valve seat inserts, and the like
JPH0959740A (ja) * 1995-08-22 1997-03-04 Kobe Steel Ltd 粉末冶金用混合粉末およびその焼結体
JP3447030B2 (ja) * 1996-01-19 2003-09-16 日立粉末冶金株式会社 耐摩耗性焼結合金およびその製造方法
US6139598A (en) * 1998-11-19 2000-10-31 Eaton Corporation Powdered metal valve seat insert

Also Published As

Publication number Publication date
CN1104510C (zh) 2003-04-02
JP2010216016A (ja) 2010-09-30
DE69906221T2 (de) 2003-11-13
EP1002883A1 (en) 2000-05-24
CN1438350A (zh) 2003-08-27
US6139598A (en) 2000-10-31
EP1002883B1 (en) 2003-03-26
PL336620A1 (en) 2000-05-22
KR100476899B1 (ko) 2005-03-17
JP2000160307A (ja) 2000-06-13
CN1260405A (zh) 2000-07-19
JP4891421B2 (ja) 2012-03-07
US6214080B1 (en) 2001-04-10
PL191887B1 (pl) 2006-07-31
KR20000035586A (ko) 2000-06-26
DE69906221D1 (de) 2003-04-30
CN100374605C (zh) 2008-03-12

Similar Documents

Publication Publication Date Title
BR9907397A (pt) Peça de metal em pó, processo para produzir a mesma e mistura de pós metálicos
DE3069055D1 (en) Sintered carbide
TW340812B (en) A fully dense, corrosion resistant, high vanadium, powder metallurgy cold work tool steel article with high metal to metal wear resistance made from nitrogen atomized prealloyed powders and method for producing the same
DE60025931D1 (de) Herstellungsverfahren für verbesserte metallurgische pulverzusammensetzung und nutzung derselbe
ES462164A1 (es) Metodo para tratar una region elegida expuesta de un articu-lo metalico noalotropico con el objeto de mejorar las pro- piedades fisicas de dicha region.
YU47179B (sh) Sinterovani materijal na bazi bakra, njegova upotreba kao i postupak za izradu otpresaka os sinterovanog materijal
FR2784691B1 (fr) Poudre metallique prealliee micronique a base de metaux de transition 3d
TW373027B (en) Powder metallurgy, cobalt-based articles having high resistance to wear and corrosion in semi-solid metals, method of manufacturing and apparatus including the same
GB1035216A (en) Method of and apparatus for fabricating self-lubricating articles or components, and articles or components made by the method
GB1503054A (en) Sintered powdered metal article having wear resistant surface
EP0598814A1 (en) POWDER METALLURGICALLY PRODUCED FAST WORK STEEL.
CN107829015A (zh) 耐磨性铁基烧结合金的制造方法和耐磨性铁基烧结合金
DE3780113T2 (de) Gesinterter verschleissfester eisenformkoerper.
US5556446A (en) Machinable brass compositions
EP0779847A1 (en) Iron-based powder containing chromium, molybdenum and manganese
JPS5767145A (en) Superhard alloy for plastic working
US5808214A (en) Powder-produced material having wear-resistance
Hamiuddin et al. Machinability of phosphorous containing sintered steels
RU2137860C1 (ru) Порошковый инструментальный сплав на основе железа
KR830009250A (ko) 철기 합금용 첨가제
Capus Machinability studies with sintered ferrous alloys
US5936170A (en) Sintered liquid phase stainless steel, and prealloyed powder for producing same, with enhanced machinability characteristics
JPS565955A (en) Wear-resistant sintered iron alloy material
JPS5789460A (en) Iron base sintered alloy for valve seat
Lindsley MACHINING OF PM STEELS: EFFECT OF ADDITIVES AND SINTER HARDENING.

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A ANUIDADE.

B08H Application fees: decision cancelled [chapter 8.8 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1821 DE 29/11/2005 POR TER SIDO APRESENTADA PAPELETA DE ESCLARECIMENTO.

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 18/11/1999, OBSERVADAS AS CONDICOES LEGAIS.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 18.11.2019