GB689349A - Improved method of producing metal powder for powder metallurgical purposes - Google Patents

Improved method of producing metal powder for powder metallurgical purposes

Info

Publication number
GB689349A
GB689349A GB3208/51A GB320851A GB689349A GB 689349 A GB689349 A GB 689349A GB 3208/51 A GB3208/51 A GB 3208/51A GB 320851 A GB320851 A GB 320851A GB 689349 A GB689349 A GB 689349A
Authority
GB
United Kingdom
Prior art keywords
powder
sintering
grain size
binders
ground
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
GB3208/51A
Inventor
Nils Herman Brundin
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.)
Hoganas AB
Original Assignee
Hoganas 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
Application filed by Hoganas AB filed Critical Hoganas AB
Priority to GB3208/51A priority Critical patent/GB689349A/en
Publication of GB689349A publication Critical patent/GB689349A/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
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/148—Agglomerating

Abstract

689,349. Powder metallurgy; making powdered metal. HOGANAS-BILLESHOLMS AKTIEBOLAG. Feb. 9, 1951, No. 3208/51. Classes 83 (ii) and 83 (iv). In a method of making metal powders for sintering, metal is first ground to a grain size smaller than that normally suitable for use and is then agglomerated and ground or crushed to a larger grain size suitable for use in sintering moulds. Powder of a grain size below 0.5 mm. is agglomerated by sintering or by using binders such as cellulose lacquers and the mass ground or crumbled by cautious pressing through a screen to a grain size not exceeding 0.15 mm. The powders may be of alloys or a mixture of different metals or may have electrolytically or chemically applied coatings of metals for forming alloys on sintering. The binder may be shellac, colophony, phenolic resins, paraffin wax or substances such as zinc stearate or stearic acid which act as lubricants during the pressing operation and which may be mixed with the other binders. The binders are used in organic solvents such as alcohol, ether or benzol which is evaporated to leave the binder in the powder.
GB3208/51A 1951-02-09 1951-02-09 Improved method of producing metal powder for powder metallurgical purposes Expired GB689349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3208/51A GB689349A (en) 1951-02-09 1951-02-09 Improved method of producing metal powder for powder metallurgical purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3208/51A GB689349A (en) 1951-02-09 1951-02-09 Improved method of producing metal powder for powder metallurgical purposes

Publications (1)

Publication Number Publication Date
GB689349A true GB689349A (en) 1953-03-25

Family

ID=9753991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3208/51A Expired GB689349A (en) 1951-02-09 1951-02-09 Improved method of producing metal powder for powder metallurgical purposes

Country Status (1)

Country Link
GB (1) GB689349A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1164676B (en) * 1953-05-02 1964-03-05 Husqvarna Vapenfabriks Ab Process for the sinter-metallurgical production of porous shaped iron bodies, in particular bullet guide rings
US3397057A (en) * 1966-09-26 1968-08-13 Int Nickel Co Method for producing flowable metal powders
US3434831A (en) * 1966-09-08 1969-03-25 Olin Mathieson Fabrication of spherical powders
US3481714A (en) * 1966-09-26 1969-12-02 Int Nickel Co Flowable metal powders
FR2555479A1 (en) * 1983-11-25 1985-05-31 Cabot Corp PROCESS FOR PRODUCING A PRODUCT OPEN FROM A METAL POWDER
GB2150156A (en) * 1983-11-25 1985-06-26 Cabot Corp Wrought powder metallurgy processing
CN114535565A (en) * 2022-04-22 2022-05-27 中航迈特粉冶科技（北京）有限公司 Metal powder antioxidant and surface modification method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1164676B (en) * 1953-05-02 1964-03-05 Husqvarna Vapenfabriks Ab Process for the sinter-metallurgical production of porous shaped iron bodies, in particular bullet guide rings
US3434831A (en) * 1966-09-08 1969-03-25 Olin Mathieson Fabrication of spherical powders
US3397057A (en) * 1966-09-26 1968-08-13 Int Nickel Co Method for producing flowable metal powders
US3481714A (en) * 1966-09-26 1969-12-02 Int Nickel Co Flowable metal powders
FR2555479A1 (en) * 1983-11-25 1985-05-31 Cabot Corp PROCESS FOR PRODUCING A PRODUCT OPEN FROM A METAL POWDER
GB2150156A (en) * 1983-11-25 1985-06-26 Cabot Corp Wrought powder metallurgy processing
CN114535565A (en) * 2022-04-22 2022-05-27 中航迈特粉冶科技（北京）有限公司 Metal powder antioxidant and surface modification method

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