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DE728165C - Process for the production of graphite-containing metal bodies - Google Patents

Process for the production of graphite-containing metal bodies

Info

Publication number
DE728165C
DE728165C DES123928D DES0123928D DE728165C DE 728165 C DE728165 C DE 728165C DE S123928 D DES123928 D DE S123928D DE S0123928 D DES0123928 D DE S0123928D DE 728165 C DE728165 C DE 728165C
Authority
DE
Germany
Prior art keywords
graphite
production
containing metal
metal bodies
mold
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.)
Expired
Application number
DES123928D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DES123928D priority Critical patent/DE728165C/en
Application granted granted Critical
Publication of DE728165C publication Critical patent/DE728165C/en
Expired legal-status Critical Current

Links

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
    • 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

Landscapes

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

Description

Verfahren zum Herstellen von graphithaltigen Metallkörpern Es ist bekannt, durch Formung und Erhitzung eines Gemisches von Graphitpulver und Metallpulver feste Körper herzustellen.Process for the production of graphite-containing metal bodies It is known by molding and heating a mixture of graphite powder and metal powder to produce solid bodies.

Die vorliegende Erfindung bezwveckt eine Verbesserung dieses bekannten Verfahrens insofern, als für besonders gute Einbindung des Graphits in das Metallpulver gesorgt und hierdurch ein Körper von großer Härte und Formbeständigkeit erzeugt wird.The present invention aims to improve on this known one Process insofar as for particularly good integration of the graphite in the metal powder and thereby a body of great hardness and dimensional stability is created will.

Das neue Verfahren stimmt mit dem bekannten insoweit überein, als das Einbinden des Graphits in das Metallpulver in einer Form unter hohem Druck und bei einer Temperatur, welche dem Schweißzustand entspricht, vorgenommen wird, um so den gewünschten Gebrauchskörper, z. B. eine Lagerschale, einen Dichtungsring, zu erlangen. Das Wesentliche und Neue besteht darin, daß gemäß der Erfindung das Pulvergemisch in der gleichen Form nacheinander zum Gebrauchskörper geformt, erhitzt, gepreßt und unter Druck auf Raumtemperatur abgekühlt wird.The new method is identical to the known one in that embedding the graphite in the metal powder in a mold under high pressure and at a temperature which corresponds to the welding condition, is carried out to so the desired utility body, z. B. a bearing shell, a sealing ring, to get. The essential and new is that according to the invention Powder mixture in the same form, one after the other, shaped into a useful body, heated, pressed and cooled under pressure to room temperature.

Zur Abkühlung läßt man zweckmäßig Wasser durch Hohlräume der Form laufen; das Abkühlen und 'Härten erfolgt unter hohem Druck. Es entsteht kolloidale Form des Materials. Infolge der Härtung und des Druckes entsteht bei 25o at die Einbindung des Graphits in das Metall unter der Spannung der Metallkristallite. Auch der Graphit kann kolloidal zugesetzt werden.For cooling purposes, water is expediently passed through cavities in the mold to run; cooling and hardening take place under high pressure. It creates colloidal Shape of the material. As a result of the hardening and the pressure, at 25o at die Integration of the graphite into the metal under the tension of the metal crystallites. The graphite can also be added colloidally.

Das neue Verfahren führt zu Erzeugnissen, die sich in .den obenerwähnten Beziehungen sehr vorteilhaft von dem bekannten unterscheiden.The new process leads to products which are in the above-mentioned Relationships are very beneficial to distinguish from the known.

Claims (1)

PATENTANSPRUCH: Verfahren zum Herstellen von gr.aphithaltigen Metallkörpern mit guten Laufeigenschaften durch gleichzeitiges. Pressen und Erhitzen eines Pulvergemisches aus Graphit und Metallen oder Legierungen in einer Form, dadurch gekennzeichnet, daß der Formkörper in der Form unter Aufrechterhaltung des Preßdruckes bis zur vollständigen Abkühlung auf Raumtemperatur abgekühlt wird. PATENT CLAIM: Process for the production of graphite-containing metal bodies with good running properties due to simultaneous. Pressing and heating a powder mixture of graphite and metals or alloys in a mold, characterized in that the shaped body is cooled in the mold while maintaining the pressing pressure until it has completely cooled down to room temperature.
DES123928D 1936-05-17 1936-05-17 Process for the production of graphite-containing metal bodies Expired DE728165C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES123928D DE728165C (en) 1936-05-17 1936-05-17 Process for the production of graphite-containing metal bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES123928D DE728165C (en) 1936-05-17 1936-05-17 Process for the production of graphite-containing metal bodies

Publications (1)

Publication Number Publication Date
DE728165C true DE728165C (en) 1942-11-21

Family

ID=7536401

Family Applications (1)

Application Number Title Priority Date Filing Date
DES123928D Expired DE728165C (en) 1936-05-17 1936-05-17 Process for the production of graphite-containing metal bodies

Country Status (1)

Country Link
DE (1) DE728165C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE836566C (en) * 1949-01-18 1952-04-15 August Coenders Process for the production of sintered bodies from metal powder
DE965772C (en) * 1949-06-09 1957-06-19 Friedrich Allendorff Dipl Ing Aerodynamic slide bearing for high speeds
DE1213123B (en) * 1954-07-02 1966-03-24 Gert Deventer Process for the production of self-lubricating graphite-containing, metal-ceramic metal moldings
DE1297829B (en) * 1964-07-17 1969-06-19 Licentia Gmbh Tool for the production of bodies using the press sintering process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE836566C (en) * 1949-01-18 1952-04-15 August Coenders Process for the production of sintered bodies from metal powder
DE965772C (en) * 1949-06-09 1957-06-19 Friedrich Allendorff Dipl Ing Aerodynamic slide bearing for high speeds
DE1213123B (en) * 1954-07-02 1966-03-24 Gert Deventer Process for the production of self-lubricating graphite-containing, metal-ceramic metal moldings
DE1297829B (en) * 1964-07-17 1969-06-19 Licentia Gmbh Tool for the production of bodies using the press sintering process

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