GB354785A - Improvements in the manufacture of refractory metals such as tungsten - Google Patents

Improvements in the manufacture of refractory metals such as tungsten

Info

Publication number
GB354785A
GB354785A GB1445030A GB1445030A GB354785A GB 354785 A GB354785 A GB 354785A GB 1445030 A GB1445030 A GB 1445030A GB 1445030 A GB1445030 A GB 1445030A GB 354785 A GB354785 A GB 354785A
Authority
GB
United Kingdom
Prior art keywords
metal
metals
tungsten
manufacture
refractory metals
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
GB1445030A
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 PLC
Original Assignee
General Electric Co PLC
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 PLC filed Critical General Electric Co PLC
Priority to GB1445030A priority Critical patent/GB354785A/en
Publication of GB354785A publication Critical patent/GB354785A/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
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

In the manufacture of refractory metals such as tungsten, the metal is sintered at a temperature, not much below its melting-point in an atmosphere containing the vapour of another metal such as sodium. The operation may be carried out in atmosphere of hydrogen or inert gas such as argon. The metal to be vaporized may be contained in a vessel placed near the refractory metal and may be introduced into the sintering chamber by passing the inert gas over the heated metal. Specifications 26775/03, [Class 82, Metals and alloys], and 4667/13, [Class 82 (i), Metals, Extracting &c.], are referred to.
GB1445030A 1930-05-10 1930-05-10 Improvements in the manufacture of refractory metals such as tungsten Expired GB354785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1445030A GB354785A (en) 1930-05-10 1930-05-10 Improvements in the manufacture of refractory metals such as tungsten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1445030A GB354785A (en) 1930-05-10 1930-05-10 Improvements in the manufacture of refractory metals such as tungsten

Publications (1)

Publication Number Publication Date
GB354785A true GB354785A (en) 1931-08-10

Family

ID=10041389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1445030A Expired GB354785A (en) 1930-05-10 1930-05-10 Improvements in the manufacture of refractory metals such as tungsten

Country Status (1)

Country Link
GB (1) GB354785A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727817A (en) * 1953-09-23 1955-12-20 Ethyl Corp Method of producing titanium and recovering sodium
US2734244A (en) * 1956-02-14 herres
US2753255A (en) * 1953-12-14 1956-07-03 Metal Hydrides Inc Method for producing powders of metals and metal hydrides
US2773787A (en) * 1952-12-20 1956-12-11 Du Pont Production of group iv-a metals
US2777763A (en) * 1955-09-14 1957-01-15 Ethyl Corp Method of producing titanium
GB2142936A (en) * 1983-03-18 1985-01-30 Starck Hermann C Fa Process for producing valve-metal anodes for electrolytic capacitors
GB2201427A (en) * 1987-02-27 1988-09-01 Cabot Corp Method for deoxidising tantalum/columbium material

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734244A (en) * 1956-02-14 herres
US2773787A (en) * 1952-12-20 1956-12-11 Du Pont Production of group iv-a metals
US2727817A (en) * 1953-09-23 1955-12-20 Ethyl Corp Method of producing titanium and recovering sodium
US2753255A (en) * 1953-12-14 1956-07-03 Metal Hydrides Inc Method for producing powders of metals and metal hydrides
US2777763A (en) * 1955-09-14 1957-01-15 Ethyl Corp Method of producing titanium
GB2142936A (en) * 1983-03-18 1985-01-30 Starck Hermann C Fa Process for producing valve-metal anodes for electrolytic capacitors
US4537641A (en) * 1983-03-18 1985-08-27 Hermann C. Starck Berlin Process for producing valve-metal anodes for electrolytic capacitors
GB2201427A (en) * 1987-02-27 1988-09-01 Cabot Corp Method for deoxidising tantalum/columbium material
GB2201427B (en) * 1987-02-27 1990-09-19 Cabot Corp Method for deoxidising tantalum/columbium material

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