WO2005095661A3 - Making sintered, iron-based alloy parts by using boron-containing master alloys - Google Patents

Making sintered, iron-based alloy parts by using boron-containing master alloys Download PDF

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Publication number
WO2005095661A3
WO2005095661A3 PCT/GB2005/000904 GB2005000904W WO2005095661A3 WO 2005095661 A3 WO2005095661 A3 WO 2005095661A3 GB 2005000904 W GB2005000904 W GB 2005000904W WO 2005095661 A3 WO2005095661 A3 WO 2005095661A3
Authority
WO
WIPO (PCT)
Prior art keywords
boron
iron
based alloy
containing master
master alloys
Prior art date
Application number
PCT/GB2005/000904
Other languages
French (fr)
Other versions
WO2005095661A2 (en
Inventor
Stephen Charles Mitchell
Miren Sarasola Inigeuz
Francisco Castro Fernandez
Original Assignee
Atomising Systems Ltd
Schunk Sintermetalltechnik Gmb
Ames Aleaciones De Metales Sin
Stephen Charles Mitchell
Miren Sarasola Inigeuz
Francisco Castro Fernandez
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 Atomising Systems Ltd, Schunk Sintermetalltechnik Gmb, Ames Aleaciones De Metales Sin, Stephen Charles Mitchell, Miren Sarasola Inigeuz, Francisco Castro Fernandez filed Critical Atomising Systems Ltd
Priority to EP05717969A priority Critical patent/EP1735477A2/en
Priority to US10/599,298 priority patent/US20070292301A1/en
Publication of WO2005095661A2 publication Critical patent/WO2005095661A2/en
Publication of WO2005095661A3 publication Critical patent/WO2005095661A3/en

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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
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • 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
    • 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
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F2003/145—Both compacting and sintering simultaneously by warm compacting, below debindering temperature
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

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

Abstract

A method of making high-density (>7.Og/ml) sintered iron-based alloy parts by using boron-containing Master Alloys comprises the steps of mixing an atomised, boron-containing master alloy powder, or a plurality of master alloy powders at least one of which is boron-containing, with a conventional iron or iron alloy powder; optionally adding graphite and a lubricant in conventional amounts as used in powder metallurgy technology; and pressing and sintering the mix to an increased density, preferably in a reducing, inert or vacuum atmosphere at 1050 to 1300°C, to produce the part required. The invention also includes parts produced by the above defined method.
PCT/GB2005/000904 2004-04-02 2005-03-09 Making sintered, iron-based alloy parts by using boron-containing master alloys WO2005095661A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05717969A EP1735477A2 (en) 2004-04-02 2005-03-09 Making sintered, iron-based alloy parts by using boron-containing master alloys
US10/599,298 US20070292301A1 (en) 2004-04-02 2005-03-09 Making Sintered, Iron-Based Alloy Parts By Using Boron-Containing Master Alloys

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0407539.6 2004-04-02
GBGB0407539.6A GB0407539D0 (en) 2004-04-02 2004-04-02 Making sintered iron based alloy parts by using boron-containing master alloys

Publications (2)

Publication Number Publication Date
WO2005095661A2 WO2005095661A2 (en) 2005-10-13
WO2005095661A3 true WO2005095661A3 (en) 2006-08-24

Family

ID=32247768

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/000904 WO2005095661A2 (en) 2004-04-02 2005-03-09 Making sintered, iron-based alloy parts by using boron-containing master alloys

Country Status (4)

Country Link
US (1) US20070292301A1 (en)
EP (1) EP1735477A2 (en)
GB (1) GB0407539D0 (en)
WO (1) WO2005095661A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6309215B2 (en) * 2013-07-02 2018-04-11 Ntn株式会社 Sintered machine part manufacturing method and mixed powder used therefor
CZ309485B6 (en) * 2020-10-19 2023-02-15 Ústav fyziky materiálů AV ČR, v. v. i Compacting powders by volumetric moulding

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999952A (en) * 1975-02-28 1976-12-28 Toyo Kohan Co., Ltd. Sintered hard alloy of multiple boride containing iron
JPS61186454A (en) * 1985-02-15 1986-08-20 Mitsubishi Metal Corp Fe-base sintered alloy having superior corrosion and wear resistances
US4612048A (en) * 1985-07-15 1986-09-16 E. I. Du Pont De Nemours And Company Dimensionally stable powder metal compositions
FR2596067A1 (en) * 1986-03-19 1987-09-25 Metafram Alliages Fritte Process for the manufacture of articles made of sintered fast steel
US5872322A (en) * 1997-02-03 1999-02-16 Ford Global Technologies, Inc. Liquid phase sintered powder metal articles
US6485540B1 (en) * 2000-08-09 2002-11-26 Keystone Investment Corporation Method for producing powder metal materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861373A (en) * 1985-07-15 1989-08-29 Scm Metal Products, Inc. Infiltrated powder metal part having improved impact strength tensile strength and dimensional control and method for making same
US5330792A (en) * 1992-11-13 1994-07-19 Hoeganaes Corporation Method of making lubricated metallurgical powder composition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999952A (en) * 1975-02-28 1976-12-28 Toyo Kohan Co., Ltd. Sintered hard alloy of multiple boride containing iron
JPS61186454A (en) * 1985-02-15 1986-08-20 Mitsubishi Metal Corp Fe-base sintered alloy having superior corrosion and wear resistances
US4612048A (en) * 1985-07-15 1986-09-16 E. I. Du Pont De Nemours And Company Dimensionally stable powder metal compositions
FR2596067A1 (en) * 1986-03-19 1987-09-25 Metafram Alliages Fritte Process for the manufacture of articles made of sintered fast steel
US5872322A (en) * 1997-02-03 1999-02-16 Ford Global Technologies, Inc. Liquid phase sintered powder metal articles
US6485540B1 (en) * 2000-08-09 2002-11-26 Keystone Investment Corporation Method for producing powder metal materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198640, Derwent World Patents Index; Class M27, AN 1986-260271, XP002386257 *

Also Published As

Publication number Publication date
EP1735477A2 (en) 2006-12-27
GB0407539D0 (en) 2004-05-05
US20070292301A1 (en) 2007-12-20
WO2005095661A2 (en) 2005-10-13

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