WO1991010754A3 - Procede de fabrication de pieces frittees en poudre d'acier a resistance elevee - Google Patents

Procede de fabrication de pieces frittees en poudre d'acier a resistance elevee Download PDF

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Publication number
WO1991010754A3
WO1991010754A3 PCT/DE1991/000041 DE9100041W WO9110754A3 WO 1991010754 A3 WO1991010754 A3 WO 1991010754A3 DE 9100041 W DE9100041 W DE 9100041W WO 9110754 A3 WO9110754 A3 WO 9110754A3
Authority
WO
WIPO (PCT)
Prior art keywords
producing high
sintered parts
powdered steel
compacts
strength sintered
Prior art date
Application number
PCT/DE1991/000041
Other languages
German (de)
English (en)
Other versions
WO1991010754A2 (fr
Inventor
Norbert Dautzenberg
Heinz Josef Dorweiler
Karl-Heinz Lindner
Original Assignee
Mannesmann Ag
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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of WO1991010754A2 publication Critical patent/WO1991010754A2/fr
Publication of WO1991010754A3 publication Critical patent/WO1991010754A3/fr

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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
    • C22C33/0257—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%
    • 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

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

Abstract

L'invention se rapporte à un procédé de fabrication de pièces frittées à résistance élevée dans lequel une poudre d'acier mélangée avec 0,3 à 0,7 % en poids de poudre de graphite, atomisée à l'eau et réduite par recuit est comprimée par moulage, lesquels comprimés obtenus sont frittés à une température située entre 1120° et 1280 °C puis trempés par refroidissement et enfin soumis à un revenu. Afin d'indiquer un procédé permettant de produire des pièces frittées à résistance élevée qu'il n'est pas nécessaire de tremper dans un bain d'huile pour les durcir, on propose de donner la composition suivante à la poude d'acier - max. 0,02 % C, max. 0,03 % Si, 0,05 - 0,25 % Mn, 2,5 - 5,0 % Ni, 0,2 - 1,5 % Mo - le reste en fer et impuretés habituelles, de comprimer les produits à une pression atteignant au moins 6,9 g/cm3, de les refroidir par bain de gaz situé dans la zone de refroidissement du four de frittage, à partir de la température de frittage et d'effectuer l'opération de revenu finale à une température située entre 180° et 500 °C pendant une durée de 30 à 90 minutes.
PCT/DE1991/000041 1990-01-19 1991-01-17 Procede de fabrication de pieces frittees en poudre d'acier a resistance elevee WO1991010754A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4001899.7 1990-01-19
DE19904001899 DE4001899C1 (fr) 1990-01-19 1990-01-19

Publications (2)

Publication Number Publication Date
WO1991010754A2 WO1991010754A2 (fr) 1991-07-25
WO1991010754A3 true WO1991010754A3 (fr) 1991-09-05

Family

ID=6398605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1991/000041 WO1991010754A2 (fr) 1990-01-19 1991-01-17 Procede de fabrication de pieces frittees en poudre d'acier a resistance elevee

Country Status (2)

Country Link
DE (1) DE4001899C1 (fr)
WO (1) WO1991010754A2 (fr)

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
DE19738919C1 (de) 1997-09-05 1999-04-29 Maxon Motor Gmbh Verfahren zur Herstellung eines Gleitlagers und Gleitlager
TWI246947B (en) * 2004-06-10 2006-01-11 Taiwan Powder Technologies Co Method for making sintered body of metal powder and sintered body prepared therefrom
DE102013001246A1 (de) * 2013-01-25 2014-07-31 Gkn Sinter Metals Holding Gmbh Verfahren zur Herstellung eines Flügels für eine Flügelzellenpumpe, Flügel für eine Flügelzellenpumpe sowie Flügelzellenpumpe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1162702A (en) * 1965-09-14 1969-08-27 Hoganas Billesholms Ab Low Alloy Iron Powder and process of preparing the same
JPS55128504A (en) * 1979-03-28 1980-10-04 Sumitomo Electric Ind Ltd Manufacture of high strength sintered parts
JPS6184302A (ja) * 1984-09-28 1986-04-28 Toyota Motor Corp 焼結鍛造部品の製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075501A (ja) * 1983-09-29 1985-04-27 Kawasaki Steel Corp 高強度焼結部品用の合金鋼粉

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1162702A (en) * 1965-09-14 1969-08-27 Hoganas Billesholms Ab Low Alloy Iron Powder and process of preparing the same
JPS55128504A (en) * 1979-03-28 1980-10-04 Sumitomo Electric Ind Ltd Manufacture of high strength sintered parts
JPS6184302A (ja) * 1984-09-28 1986-04-28 Toyota Motor Corp 焼結鍛造部品の製造方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Chemical Abstracts, Band 98, Nr, 22, 30. Mai 1983, (Columbus, Ohio, US), J. Tengzelius et al.: "High-temperature sintering of powder metallurgy steels", siehe Zeile 232 *
Patent Abstracts of Japan, Band 86, Nr. 903, 3. September 1986; & JP-A-61084302 (TOYOTA), 28. April 1986 *
Powder Metallurgy, Band 18, Nr. 35, 1975, The Metals Society, (London, GB), G. Wastenson: "Methods of extending the applicability of sintered steels", Seiten 124-129 *
WPIL, File Supplier, AN nr. 81-62926D, Derwent Publications Ltd, (London, GB), & JP-A-55128504 (SUMITOMO), 5. Oktober 1980 *

Also Published As

Publication number Publication date
DE4001899C1 (fr) 1991-07-25
WO1991010754A2 (fr) 1991-07-25

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