GB408716A - Improvements in methods of making tools and similar objects from sintered hard metalcarbides or like material - Google Patents

Improvements in methods of making tools and similar objects from sintered hard metalcarbides or like material

Info

Publication number
GB408716A
GB408716A GB30781/32A GB3078132A GB408716A GB 408716 A GB408716 A GB 408716A GB 30781/32 A GB30781/32 A GB 30781/32A GB 3078132 A GB3078132 A GB 3078132A GB 408716 A GB408716 A GB 408716A
Authority
GB
United Kingdom
Prior art keywords
pressing
sintering
metalcarbides
methods
hard
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
GB30781/32A
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.)
GOESTA STERKY
KJELL MAGNUS TIGERSCHIOELD
Original Assignee
GOESTA STERKY
KJELL MAGNUS TIGERSCHIOELD
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 GOESTA STERKY, KJELL MAGNUS TIGERSCHIOELD filed Critical GOESTA STERKY
Publication of GB408716A publication Critical patent/GB408716A/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
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds

Landscapes

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

Abstract

In a process for the production of tools and other objects subjected to abrasion, by pressing and sintering a pulverous mixture consisting of a hard metal carbide, boride, silicide, or nitride and one or more softer metals such as iron, cobalt, &c., with or without the addition of one or more hard metals such as tungsten, molybdenum &c., the mixture is subjected before, during, or after pressing to the influence of chemicals that attack the surfaces of the soft metal powder so that, at a slight sintering, if necessary, a coherent form piece is obtained which is mechanically worked to shape, and then finally sintered. The soft metal may be oxidized, for example by oxygen or chlorine at atmospheric or raised pressures, or chloridized by solid or dissolved ammonium chloride, or treated with other salts or dilute organic or inorganic acids. In certain cases a second pressing under high pressure is applied after the slight sintering.
GB30781/32A 1931-11-04 1932-11-01 Improvements in methods of making tools and similar objects from sintered hard metalcarbides or like material Expired GB408716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1996220X 1931-11-04

Publications (1)

Publication Number Publication Date
GB408716A true GB408716A (en) 1934-04-19

Family

ID=20424263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30781/32A Expired GB408716A (en) 1931-11-04 1932-11-01 Improvements in methods of making tools and similar objects from sintered hard metalcarbides or like material

Country Status (4)

Country Link
US (1) US1996220A (en)
FR (1) FR745076A (en)
GB (1) GB408716A (en)
NL (1) NL34502C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976738C (en) * 1940-11-23 1964-04-02 Degussa Process for the production of molded bodies from metal powder
ES203316A1 (en) * 1951-05-04 1952-07-01 British Aluminium Co Ltd Current conducting element for aluminum production cells
US2766141A (en) * 1951-10-19 1956-10-09 Carborundum Co Zirconium boride body impregnated with molybdenum silicide and method of making same
US2921861A (en) * 1953-08-19 1960-01-19 Fansteel Metallurgical Corp Method of forming titanium silicide refractory articles
US2963448A (en) * 1957-05-06 1960-12-06 Texaco Inc Tableting process for granular porous solid particles
US3036910A (en) * 1958-03-13 1962-05-29 Walter W Eichenberger Synthetic ferro-titanium briquette
US3110590A (en) * 1961-10-06 1963-11-12 Du Pont Compositions of molybdenum, nitrogen and silicon and shaped objects therefrom
US3184834A (en) * 1961-12-19 1965-05-25 Du Pont Selected mo-nb-si-ti compositions and objects thereof
US3161948A (en) * 1963-01-29 1964-12-22 Du Pont Compositions containing iron, molybdenu, silicon and selected low-melting metals
US3409418A (en) * 1966-11-09 1968-11-05 Du Pont Dense products of vanadium or zirconium nitride with iron, nickel or cobalt
US3663297A (en) * 1970-06-24 1972-05-16 Us Navy Process for the preparation of sintered zinc powder battery electrodes
GB1425166A (en) * 1972-05-16 1976-02-18 Lucas Industries Ltd Method of producing hot pressed components

Also Published As

Publication number Publication date
US1996220A (en) 1935-04-02
NL34502C (en)
FR745076A (en) 1933-05-01

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