PT91283A - Processo para a fabricacao de objectos moldados de aco sinterizado e objectos moldados assim obtidos - Google Patents

Processo para a fabricacao de objectos moldados de aco sinterizado e objectos moldados assim obtidos

Info

Publication number
PT91283A
PT91283A PT91283A PT9128389A PT91283A PT 91283 A PT91283 A PT 91283A PT 91283 A PT91283 A PT 91283A PT 9128389 A PT9128389 A PT 9128389A PT 91283 A PT91283 A PT 91283A
Authority
PT
Portugal
Prior art keywords
molded objects
sinterized
aco
manufacture
molded
Prior art date
Application number
PT91283A
Other languages
English (en)
Other versions
PT91283B (pt
Inventor
Hans A Harle
Dieter Pohl
Original Assignee
Schwaebische Huettenwerke Gmbh
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 Schwaebische Huettenwerke Gmbh filed Critical Schwaebische Huettenwerke Gmbh
Publication of PT91283A publication Critical patent/PT91283A/pt
Publication of PT91283B publication Critical patent/PT91283B/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
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0264—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5%
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F3/26—Impregnating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Powder Metallurgy (AREA)
PT91283A 1988-07-27 1989-07-26 Processo para a fabricacao de objectos moldados de aco sinterizado e objectos moldados assim obtidos PT91283B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3825463A DE3825463A1 (de) 1988-07-27 1988-07-27 Verfahren zum herstellen eines formteiles aus sintermetall und daraus hergestelltes formteil

Publications (2)

Publication Number Publication Date
PT91283A true PT91283A (pt) 1990-02-08
PT91283B PT91283B (pt) 1995-03-01

Family

ID=6359640

Family Applications (1)

Application Number Title Priority Date Filing Date
PT91283A PT91283B (pt) 1988-07-27 1989-07-26 Processo para a fabricacao de objectos moldados de aco sinterizado e objectos moldados assim obtidos

Country Status (4)

Country Link
EP (1) EP0354389B1 (pt)
DE (2) DE3825463A1 (pt)
ES (1) ES2054943T3 (pt)
PT (1) PT91283B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521941C1 (de) * 1995-06-07 1996-10-02 Mannesmann Ag Verfahren und Vorrichtung zur Herstellung von Sinterteilen
DE19524251C1 (de) * 1995-07-04 1997-02-13 Supervis Ets Verfahren zur Herstellung eines gesinterten Formteiles
JP4001450B2 (ja) * 2000-05-02 2007-10-31 日立粉末冶金株式会社 内燃機関用バルブシートおよびその製造方法
SE0201824D0 (sv) * 2002-06-14 2002-06-14 Hoeganaes Ab Pre-alloyed iron based powder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566752A (en) * 1948-10-14 1951-09-04 American Electro Metal Corp Method of producing a ferrous metal article infiltrated with a cuprous infiltrant
US4002471A (en) * 1973-09-24 1977-01-11 Federal-Mogul Corporation Method of making a through-hardened scale-free forged powdered metal article without heat treatment after forging
JPS50115108A (pt) * 1974-02-21 1975-09-09
US4343661A (en) * 1978-11-15 1982-08-10 Caterpillar Tractor Co. Method of making a low temperature bainite steel alloy gear
DE3142359A1 (de) * 1981-10-26 1983-05-05 Horst Dipl.-Phys. Dr. 6000 Frankfurt Mühlberger Verfahren und vorrichtung zur waermebehandlung von werkstuecken

Also Published As

Publication number Publication date
DE58907598D1 (de) 1994-06-09
EP0354389A1 (de) 1990-02-14
PT91283B (pt) 1995-03-01
ES2054943T3 (es) 1994-08-16
EP0354389B1 (de) 1994-05-04
DE3825463A1 (de) 1990-02-01

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19940812

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20020228