GB898932A - Improvements in casting metal powders - Google Patents

Improvements in casting metal powders

Info

Publication number
GB898932A
GB898932A GB2324459A GB2324459A GB898932A GB 898932 A GB898932 A GB 898932A GB 2324459 A GB2324459 A GB 2324459A GB 2324459 A GB2324459 A GB 2324459A GB 898932 A GB898932 A GB 898932A
Authority
GB
United Kingdom
Prior art keywords
molybdenum
agent
slip
powder
liquid carrier
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
GB2324459A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB898932A publication Critical patent/GB898932A/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
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip

Landscapes

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

Abstract

Sintered tungsten or molybdenum products are formed from a slip casting composition with a pH valve of 3 to 9 and comprising the metal powder, a liquid carrier, a viscosity controlling agent, an anti-foaming agent and a melting agent. A molybdenum slip composition is formed from a mixture of molybdenum powder at least 90% being less than 10 micron, a liquid carrier such as water or polyvinyl alcohol in a proportion of 1,25 to 1,5 parts per part of powder, an anti-foaming agent such as the silicones, octyl alcohol or amyl alcohol, 0,01 to 0,5 gms. per 100 ccs. of molybdenum of a melting agent such as dioctyl sodium sulphosuccinate and a viscosity controlling agent such as polyvinyl alcohol, sodium or ammonium alginate and methyl cellulose. The slip with a pH of 6 to 7 is cast into an absorbent mould and the green casting is sintered at 1900 DEG C. in hydrogen.
GB2324459A 1958-07-30 1959-07-07 Improvements in casting metal powders Expired GB898932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75190158A 1958-07-30 1958-07-30

Publications (1)

Publication Number Publication Date
GB898932A true GB898932A (en) 1962-06-14

Family

ID=25023997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2324459A Expired GB898932A (en) 1958-07-30 1959-07-07 Improvements in casting metal powders

Country Status (4)

Country Link
BE (1) BE580576A (en)
CH (1) CH410435A (en)
DE (1) DE1225949B (en)
GB (1) GB898932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1533037B1 (en) * 1965-10-13 1970-07-30 Texas Instruments Inc Process for the powder metallurgical production of thin metal strips
EP0246438A2 (en) * 1986-05-15 1987-11-25 AlliedSignal Inc. Aqueous compositions for injection moulding comprising a gel-forming material and ceramic and/or metal powder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3808123A1 (en) * 1988-03-11 1988-07-07 Krupp Gmbh Process for producing sintered parts of finely particulate metal or ceramic powders

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1533037B1 (en) * 1965-10-13 1970-07-30 Texas Instruments Inc Process for the powder metallurgical production of thin metal strips
EP0246438A2 (en) * 1986-05-15 1987-11-25 AlliedSignal Inc. Aqueous compositions for injection moulding comprising a gel-forming material and ceramic and/or metal powder
EP0246438A3 (en) * 1986-05-15 1989-07-26 Allied Corporation Aqueous compositions for injection moulding comprising a gel-forming material and ceramic and/or metal powder

Also Published As

Publication number Publication date
CH410435A (en) 1966-03-31
BE580576A (en) 1960-01-11
DE1225949B (en) 1966-09-29

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