GB1013932A - Improvements in or relating to methods for the manufacture of metal or metal-ceramicmouldings - Google Patents

Improvements in or relating to methods for the manufacture of metal or metal-ceramicmouldings

Info

Publication number
GB1013932A
GB1013932A GB2289162A GB2289162A GB1013932A GB 1013932 A GB1013932 A GB 1013932A GB 2289162 A GB2289162 A GB 2289162A GB 2289162 A GB2289162 A GB 2289162A GB 1013932 A GB1013932 A GB 1013932A
Authority
GB
United Kingdom
Prior art keywords
oxide
metal
sintering
reducing agent
microns
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
GB2289162A
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.)
Deventer Werke GmbH
Original Assignee
Deventer Werke 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 Deventer Werke GmbH filed Critical Deventer Werke GmbH
Publication of GB1013932A publication Critical patent/GB1013932A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/058—Mixtures of metal powder with non-metallic powder by reaction sintering (i.e. gasless reaction starting from a mixture of solid metal compounds)
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent

Landscapes

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

Abstract

In a process of producing a sintered metal or metal ceramic compact, an oxide carrier and a reducing agent are added to the powder mixture which is then compacted and heated to a relatively low temperature not substantially greater than that required to initiate an exothermic reaction between the oxide carrier and the reducing agent so that sintering is effected by the heat liberated by the exothermic reaction. The mixture contains 0.5-5% each of the oxide carrier and reducing agent which have a maximum grain size of 200 microns. The oxide carriers may be ferrous oxide, manganese oxide, cuprous oxide, potassium chlorate, sodium nitrate, calcium sulphate, chromates, bichromates, permanganates or the oxide of the metal powder being sintered; the reducing agents may be phosphorus, carbon, sulphur or compounds thereof, zinc or tin. The metal powder used as a maximum grain size of 500 microns and examples are given of the sintering of ferrous materials at 800-850 DEG C. and copper and copper zinc alloys at 550 DEG C. The sintering can be carried out in an oxidizing atmosphere and charcoal and phenol resins may also be added to the powder mixture in order to produce a porous structure after sintering.
GB2289162A 1961-06-15 1962-06-14 Improvements in or relating to methods for the manufacture of metal or metal-ceramicmouldings Expired GB1013932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1961D0036339 DE1284628B (en) 1961-06-15 1961-06-15 Process for the production of metal-ceramic materials

Publications (1)

Publication Number Publication Date
GB1013932A true GB1013932A (en) 1965-12-22

Family

ID=7043062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2289162A Expired GB1013932A (en) 1961-06-15 1962-06-14 Improvements in or relating to methods for the manufacture of metal or metal-ceramicmouldings

Country Status (2)

Country Link
DE (1) DE1284628B (en)
GB (1) GB1013932A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029475A (en) 1973-12-31 1977-06-14 Kabushiki Kaisha Hamai Seisakusho Blank for rolling and forging and method of producing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991012349A1 (en) * 1990-02-14 1991-08-22 Institut Strukturnoi Makrokinetiki Akademii Nauk Sssr Method for obtaining ferrites

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE432063C (en) * 1923-01-19 1926-07-24 Gen Motors Res Corp Process for the production of metal parts
DE688269C (en) * 1937-10-18 1940-02-16 Degussa Process for the production of metallic objects
DE922278C (en) * 1943-06-05 1955-01-13 Heinrich Dipl-Ing Spodig Process for the production of hard, wear-resistant bodies
GB616839A (en) * 1946-07-08 1949-01-27 Sintered Products Ltd Improvements in or relating to the manufacture of porous metal
AT175707B (en) * 1951-06-26 1953-08-10 Plansee Metallwerk Process for the production of moldings by hot pressing of metal powders

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029475A (en) 1973-12-31 1977-06-14 Kabushiki Kaisha Hamai Seisakusho Blank for rolling and forging and method of producing same

Also Published As

Publication number Publication date
DE1284628B (en) 1968-12-05

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