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WO2008091210A1 - Poudre de fer alliée par diffusion - Google Patents

Poudre de fer alliée par diffusion Download PDF

Info

Publication number
WO2008091210A1
WO2008091210A1 PCT/SE2008/050061 SE2008050061W WO2008091210A1 WO 2008091210 A1 WO2008091210 A1 WO 2008091210A1 SE 2008050061 W SE2008050061 W SE 2008050061W WO 2008091210 A1 WO2008091210 A1 WO 2008091210A1
Authority
WO
WIPO (PCT)
Prior art keywords
iron
powder
bullet
anyone
iron powder
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SE2008/050061
Other languages
English (en)
Inventor
Johan Arvidsson
Hans SÖDERHJELM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoganas AB
Original Assignee
Hoganas AB
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 Hoganas AB filed Critical Hoganas AB
Priority to EP08705333.6A priority Critical patent/EP2111317A4/fr
Priority to CN2008800032128A priority patent/CN101588883B/zh
Priority to US12/522,753 priority patent/US20100043662A1/en
Priority to BRPI0807180-2A priority patent/BRPI0807180A2/pt
Priority to CA002675104A priority patent/CA2675104A1/fr
Publication of WO2008091210A1 publication Critical patent/WO2008091210A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
    • 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
    • B22F1/14—Treatment of metallic powder
    • B22F1/142—Thermal or thermo-mechanical treatment
    • 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
    • B22F1/17—Metallic particles coated with metal
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals
    • 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%
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B7/00—Shotgun ammunition
    • F42B7/02—Cartridges, i.e. cases with propellant charge and missile
    • F42B7/10—Ball or slug shotgun cartridges
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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

Definitions

  • a process for producing a diffusion alloyed iron powder which comprises: 30-60 wt% tungsten, balance essentially only iron and unavoidable impurities, said process comprises; a) mixing a tungsten oxide and an atomized iron powder, b) and annealing the mix of step a) under a reducing atmosphere whereby the tungsten oxide is reduced and tungsten is bonded to the surfaces of the iron powder particles of the iron powder.
  • the annealing is performed at a temperature of at least 800 0 C, more preferably at least 900 0 C and at a temperature below 1500 0 C, more preferably below 1200 0 C.
  • the annealing is preferably performed during at least 30 minutes, more preferably at least 45 minutes.
  • the sintered density of the bullet produced according to the bullet preferably has a density of at least 10 g/cm 3 , more preferably at least 11 g/cm 3 .
  • Such bullets are suitable as shot gun bullets and hunting bullets.
  • composition A As can be seen in Table 3 the best results were achieved for composition A, E and F - all being mixed with 2 wt% C in the form of Graphite (grade UF). The highest sintering density was achieved for composition A, however composition E and F closely followed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne une poudre de fer alliée par diffusion caractérisée en ce que du tungstène W est fixé aux surfaces des particules d'une poudre de fer ou à base de fer, la poudre de fer alliée par diffusion comprenant, en % en poids : 30-60 % de W, le reste étant pour l'essentiel seulement du fer et des impuretés inévitables.
PCT/SE2008/050061 2007-01-26 2008-01-21 Poudre de fer alliée par diffusion Ceased WO2008091210A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP08705333.6A EP2111317A4 (fr) 2007-01-26 2008-01-21 Poudre de fer alliée par diffusion
CN2008800032128A CN101588883B (zh) 2007-01-26 2008-01-21 扩散合金化铁粉
US12/522,753 US20100043662A1 (en) 2007-01-26 2008-01-21 Diffusion alloyed iron powder
BRPI0807180-2A BRPI0807180A2 (pt) 2007-01-26 2008-01-21 Pó de ferro de liga de difusão
CA002675104A CA2675104A1 (fr) 2007-01-26 2008-01-21 Poudre de fer alliee par diffusion

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US88666407P 2007-01-26 2007-01-26
SE0700193-6 2007-01-26
US60/886,664 2007-01-26
SE0700193 2007-01-26

Publications (1)

Publication Number Publication Date
WO2008091210A1 true WO2008091210A1 (fr) 2008-07-31

Family

ID=39644717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2008/050061 Ceased WO2008091210A1 (fr) 2007-01-26 2008-01-21 Poudre de fer alliée par diffusion

Country Status (6)

Country Link
US (1) US20100043662A1 (fr)
EP (1) EP2111317A4 (fr)
CN (1) CN101588883B (fr)
BR (1) BRPI0807180A2 (fr)
CA (1) CA2675104A1 (fr)
WO (1) WO2008091210A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011053231A1 (fr) * 2009-10-26 2011-05-05 Minpro Aktiebolag Recyclage de carbures de tungstène
WO2014037385A1 (fr) 2012-09-05 2014-03-13 Ab Ferrolegeringar Boulettes contenant du fer et du tungstène, et boulettes contenant du fer, du tungstène et du molybdène

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103627941A (zh) * 2013-12-06 2014-03-12 株洲乐泰金属粉末制品有限公司 一种用于猎枪子弹弹芯的钨锡合金球的配方及其制备工艺
RU2606358C2 (ru) * 2015-01-12 2017-01-10 Юрий Генрихович Векслер Способ получения легированных порошков в виброкипящем слое
US10260850B2 (en) 2016-03-18 2019-04-16 Environ-Metal, Inc. Frangible firearm projectiles, methods for forming the same, and firearm cartridges containing the same
US10690465B2 (en) 2016-03-18 2020-06-23 Environ-Metal, Inc. Frangible firearm projectiles, methods for forming the same, and firearm cartridges containing the same
CN112746215A (zh) * 2020-12-25 2021-05-04 北京首钢吉泰安新材料有限公司 一种成分均匀的含低熔点高密度元素钢的冶炼方法
JP7491578B2 (ja) 2021-02-10 2024-05-28 清川メッキ工業株式会社 散弾銃用弾丸

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940712C (de) * 1946-05-22 1956-03-22 Husqvarna Vapenfabriks Ab Auf pulvermetallurgischem Wege hergestellte Legierung mit hoher Kriechgrenze
US4954171A (en) * 1987-09-30 1990-09-04 Kawasaki Steel Corp. Composite alloy steel powder and sintered alloy steel
US5527376A (en) * 1994-10-18 1996-06-18 Teledyne Industries, Inc. Composite shot
WO2005102564A1 (fr) * 2004-04-22 2005-11-03 Jfe Steel Corporation Poudre mélangée pour métallurgie des poudres

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB598181A (en) * 1945-02-12 1948-02-12 Diffusion Alloys Ltd A process for the coating of metal powders
JPS58481B2 (ja) * 1976-03-12 1983-01-06 川崎製鉄株式会社 低酸素鉄系金属粉末の製造方法および装置
JPS63297502A (ja) * 1987-05-29 1988-12-05 Kobe Steel Ltd 粉末冶金用高強度合金鋼粉及びその製造方法
JPH0356609A (ja) * 1989-07-21 1991-03-12 Awamura Kinzoku Kogyo Kk モリブデン被覆複合粉末の製造法
US5264022A (en) * 1992-05-05 1993-11-23 Teledyne Industries, Inc. Composite shot
US5831188A (en) * 1992-05-05 1998-11-03 Teledyne Industries, Inc. Composite shots and methods of making
JPH0718351A (ja) * 1993-07-07 1995-01-20 Railway Technical Res Inst 焼結集電摺動材料
US5399187A (en) * 1993-09-23 1995-03-21 Olin Corporation Lead-free bullett
US5950064A (en) * 1997-01-17 1999-09-07 Olin Corporation Lead-free shot formed by liquid phase bonding
US6209180B1 (en) * 1997-03-25 2001-04-03 Teledyne Industries Non-toxic high density shot for shotshells
US6112669A (en) * 1998-06-05 2000-09-05 Olin Corporation Projectiles made from tungsten and iron
US6527880B2 (en) * 1998-09-04 2003-03-04 Darryl D. Amick Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
FR2784690B1 (fr) * 1998-10-16 2001-10-12 Eurotungstene Poudres Poudres metalliques microniques a base de tungstene et/ou de molybdene et de materiaux de transition 3d
US6640724B1 (en) * 1999-08-04 2003-11-04 Olin Corporation Slug for industrial ballistic tool
US6537489B2 (en) * 2000-11-09 2003-03-25 Höganäs Ab High density products and method for the preparation thereof
US20030097907A1 (en) * 2001-11-28 2003-05-29 Carroll Daniel F. Methods of producing composite powders
WO2003064961A1 (fr) * 2002-01-30 2003-08-07 Amick Darryl D Articles contenant du tungstene et procedes permettant le formage de ces articles
CN100515613C (zh) * 2004-04-22 2009-07-22 杰富意钢铁株式会社 粉末冶金用混合粉体

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940712C (de) * 1946-05-22 1956-03-22 Husqvarna Vapenfabriks Ab Auf pulvermetallurgischem Wege hergestellte Legierung mit hoher Kriechgrenze
US4954171A (en) * 1987-09-30 1990-09-04 Kawasaki Steel Corp. Composite alloy steel powder and sintered alloy steel
US5527376A (en) * 1994-10-18 1996-06-18 Teledyne Industries, Inc. Composite shot
WO2005102564A1 (fr) * 2004-04-22 2005-11-03 Jfe Steel Corporation Poudre mélangée pour métallurgie des poudres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2111317A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011053231A1 (fr) * 2009-10-26 2011-05-05 Minpro Aktiebolag Recyclage de carbures de tungstène
CN102665973A (zh) * 2009-10-26 2012-09-12 明普罗公司 碳化钨的循环利用
US8685137B2 (en) 2009-10-26 2014-04-01 Minpro Aktiebolag Recycling of tungsten carbides
CN102665973B (zh) * 2009-10-26 2014-07-16 明普罗公司 碳化钨的循环利用
WO2014037385A1 (fr) 2012-09-05 2014-03-13 Ab Ferrolegeringar Boulettes contenant du fer et du tungstène, et boulettes contenant du fer, du tungstène et du molybdène

Also Published As

Publication number Publication date
BRPI0807180A2 (pt) 2014-05-27
CN101588883B (zh) 2012-05-30
CA2675104A1 (fr) 2008-07-31
US20100043662A1 (en) 2010-02-25
EP2111317A4 (fr) 2013-08-07
EP2111317A1 (fr) 2009-10-28
CN101588883A (zh) 2009-11-25

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