EP0327064A3 - Verfahren zur Herstellung pulvermetallurgischer Gegenstände, insbesondere langgestreckter Gegenstände, wie Stangen, Profile, Rohre od. dgl. - Google Patents

Verfahren zur Herstellung pulvermetallurgischer Gegenstände, insbesondere langgestreckter Gegenstände, wie Stangen, Profile, Rohre od. dgl. Download PDF

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Publication number
EP0327064A3
EP0327064A3 EP89101731A EP89101731A EP0327064A3 EP 0327064 A3 EP0327064 A3 EP 0327064A3 EP 89101731 A EP89101731 A EP 89101731A EP 89101731 A EP89101731 A EP 89101731A EP 0327064 A3 EP0327064 A3 EP 0327064A3
Authority
EP
European Patent Office
Prior art keywords
capsule
temperature
blank
pressed
heated
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
EP89101731A
Other languages
English (en)
French (fr)
Other versions
EP0327064A2 (de
Inventor
Christer Aslund
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.)
ANVAL NYBY POWDER AB
Original Assignee
ANVAL NYBY POWDER 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
Priority claimed from SE8800366A external-priority patent/SE8800366D0/xx
Priority claimed from SE8800365A external-priority patent/SE8800365D0/xx
Application filed by ANVAL NYBY POWDER AB filed Critical ANVAL NYBY POWDER AB
Publication of EP0327064A2 publication Critical patent/EP0327064A2/de
Publication of EP0327064A3 publication Critical patent/EP0327064A3/de
Ceased legal-status Critical Current

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Classifications

    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • 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
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • 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
    • B22F3/1208—Containers or coating used therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Metal Rolling (AREA)

Abstract

Verfahren zur Herstellung pulvermetallurgischer Gegen­ stände, insbesondere langgestreckter Gegenstände, wie Stangen, Profile, Rohre od. dgl., bei dem Pulver aus Metall und/oder Metallegierungen hoher Härte, insbeson­ dere Werkzeugstahl- oder Schnellstahlpulver, in eine dünnwandige Kapsel eingefüllt, die Kapsel anschließend luftdicht verschlossen, erwärmt und unter Herstellung eines Rohlings isostatisch verpreßt wird, der dann zum Endprodukt warmverformt, insbesondere stranggepreßt wird. Bei einer ersten Alternative wird die luftdicht verschlossene Kapsel zunächst auf eine Temperatur von über 1000 °C erwärmt. Nach vollständiger Durchwärmung der Kapsel wird diese für eine längere Zeit bei erhöhter Temperatur gehalten. Anschließend erfolgt eine langsame Abkühlung der Kapsel, um vor der Endverformung kaltiso­ statisch verpreßt zu werden. Alternativ wird die Kapsel nach dem luftdichten Verschließen zunächst kaltisosta­ tisch verpreßt. Anschließend wird der Preßrohling auf eine Temperatur von über 1000 °C erwärmt. Nach vollstän­ diger Durchwärmung des Preßrohlings wird dieser für eine längere Zeit bei erhöhter Temperatur gehalten, um dann entweder unmittelbar oder nach vorheriger Abkühlung warmverformt, insbesondere stranggepreßt zu werden.
EP89101731A 1988-02-05 1989-02-01 Verfahren zur Herstellung pulvermetallurgischer Gegenstände, insbesondere langgestreckter Gegenstände, wie Stangen, Profile, Rohre od. dgl. Ceased EP0327064A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8800366A SE8800366D0 (sv) 1988-02-05 1988-02-05 Metallurgiskt forfarande i
SE8800365 1988-02-05
SE8800365A SE8800365D0 (sv) 1988-02-05 1988-02-05 Metallurgiskt forfarande ii
SE8800366 1988-07-01

Publications (2)

Publication Number Publication Date
EP0327064A2 EP0327064A2 (de) 1989-08-09
EP0327064A3 true EP0327064A3 (de) 1989-12-20

Family

ID=26660106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89101731A Ceased EP0327064A3 (de) 1988-02-05 1989-02-01 Verfahren zur Herstellung pulvermetallurgischer Gegenstände, insbesondere langgestreckter Gegenstände, wie Stangen, Profile, Rohre od. dgl.

Country Status (4)

Country Link
US (1) US4923671A (de)
EP (1) EP0327064A3 (de)
JP (1) JPH01287205A (de)
KR (1) KR890012729A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2681807B2 (ja) * 1988-09-21 1997-11-26 株式会社トーキン 熱間静水圧プレスによる金属成形体の製造方法
FR2680127A1 (fr) * 1991-08-09 1993-02-12 Anor Acieries Forges Procede permettant le colaminage d'acier rapide sur un acier doux.
US5561829A (en) * 1993-07-22 1996-10-01 Aluminum Company Of America Method of producing structural metal matrix composite products from a blend of powders
US5482672A (en) * 1995-02-09 1996-01-09 Friedman; Ira Process for extruding tantalum and/or niobium
PT814172E (pt) * 1996-06-17 2003-01-31 Hanspeter Hau Aco para ferramentas de trabalho a quente por pulverizacao metalurgica e processo para a sua producao
US5885379A (en) * 1997-03-28 1999-03-23 The Landover Company Tempered powdered metallurgical construct and method
US7625520B2 (en) * 2003-11-18 2009-12-01 Dwa Technologies, Inc. Manufacturing method for high yield rate of metal matrix composite sheet production
EP2014394A1 (de) * 2007-07-13 2009-01-14 Alcan Technology & Management Ltd. Verfahren, bei dem durch Mikrowellen erwärmtes Metallpulver stranggepresst wird
IT1395649B1 (it) * 2009-07-31 2012-10-16 Avio Spa Procedimento di fabbricazione di componenti ottenuti per sinterizzazione di leghe co-cr-mo aventi migliorata duttilita' alle alte temperature
KR101366821B1 (ko) * 2011-11-03 2014-02-27 한국생산기술연구원 대기압 하에서 벌크 비정질 합금 판재의 고온 소성 가공 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659433A1 (de) * 1975-12-30 1977-07-14 Davy Loewy Ltd Verfahren zur herstellung von koerpern aus metallpulver
DE2419014B2 (de) * 1974-04-19 1979-10-11 Nyby Bruk Ab, Nybybruk (Schweden) Verfahren zum Herstellen von Rohren aus rostfreiem Stahl und Anwendung des Verfahrens auf das Herstellen von Verbundrohren
GB1590953A (en) * 1977-10-04 1981-06-10 Powdrex Ltd Making articles from metallic powder
EP0165409A1 (de) * 1984-05-22 1985-12-27 Kloster Speedsteel Aktiebolag Verfahren zur metallurgischen Herstellung von Schnellarbeitsstahlkörpern
EP0252193A1 (de) * 1986-07-10 1988-01-13 Worl-Tech Limited Herstellung und Formen von Halbzeug aus legiertem Metallpulver

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846660C2 (de) * 1978-10-26 1984-03-08 Gränges Nyby AB, Nybybruk Ringkörperförmige Hülle für Strangpreßbolzen zur pulvermetallurgischen Herstellung von Rohren
US4460541A (en) * 1980-01-16 1984-07-17 Reynolds Metals Company Aluminum powder metallurgy
WO1981002264A1 (en) * 1980-02-13 1981-08-20 Uk Nii Method of making articles of tool steel powders
SE426791B (sv) * 1980-04-25 1983-02-14 Asea Ab Forfarande vid strengpressning av en pulverfylld kapsel
EP0203197B1 (de) * 1984-10-26 1991-03-06 Japan as represented by Director-General, Agency of Industrial Science and Technology Verfahren zur herstellung von superwärmestabilem legierungsmaterial

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2419014B2 (de) * 1974-04-19 1979-10-11 Nyby Bruk Ab, Nybybruk (Schweden) Verfahren zum Herstellen von Rohren aus rostfreiem Stahl und Anwendung des Verfahrens auf das Herstellen von Verbundrohren
DE2659433A1 (de) * 1975-12-30 1977-07-14 Davy Loewy Ltd Verfahren zur herstellung von koerpern aus metallpulver
GB1590953A (en) * 1977-10-04 1981-06-10 Powdrex Ltd Making articles from metallic powder
EP0165409A1 (de) * 1984-05-22 1985-12-27 Kloster Speedsteel Aktiebolag Verfahren zur metallurgischen Herstellung von Schnellarbeitsstahlkörpern
EP0252193A1 (de) * 1986-07-10 1988-01-13 Worl-Tech Limited Herstellung und Formen von Halbzeug aus legiertem Metallpulver

Also Published As

Publication number Publication date
JPH01287205A (ja) 1989-11-17
US4923671A (en) 1990-05-08
EP0327064A2 (de) 1989-08-09
KR890012729A (ko) 1989-09-19

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