CH318054A - Process for restoring the porosity of a machined porous refractory metal - Google Patents

Process for restoring the porosity of a machined porous refractory metal

Info

Publication number
CH318054A
CH318054A CH318054DA CH318054A CH 318054 A CH318054 A CH 318054A CH 318054D A CH318054D A CH 318054DA CH 318054 A CH318054 A CH 318054A
Authority
CH
Switzerland
Prior art keywords
porosity
restoring
refractory metal
porous refractory
machined porous
Prior art date
Application number
Other languages
German (de)
Inventor
Gustav Koppius Otto
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH318054A publication Critical patent/CH318054A/en

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
    • B22F3/11—Making porous workpieces or articles
    • 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
    • C22C1/08—Alloys with open or closed pores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Solid Thermionic Cathode (AREA)
CH318054D 1952-06-26 1953-06-24 Process for restoring the porosity of a machined porous refractory metal CH318054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US318054XA 1952-06-26 1952-06-26

Publications (1)

Publication Number Publication Date
CH318054A true CH318054A (en) 1956-12-15

Family

ID=21861485

Family Applications (1)

Application Number Title Priority Date Filing Date
CH318054D CH318054A (en) 1952-06-26 1953-06-24 Process for restoring the porosity of a machined porous refractory metal

Country Status (5)

Country Link
BE (1) BE520936A (en)
CH (1) CH318054A (en)
FR (1) FR1079579A (en)
GB (1) GB726032A (en)
NL (1) NL81847C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110193601B (en) * 2019-06-13 2021-10-15 金堆城钼业股份有限公司 Preparation method of double-layer or multi-layer refractory metal composite pipe

Also Published As

Publication number Publication date
GB726032A (en) 1955-03-16
NL81847C (en)
BE520936A (en)
FR1079579A (en) 1954-12-01

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