GB1353822A - Sintering of workpieces formed of pressed powdered refractory metal or alloy - Google Patents

Sintering of workpieces formed of pressed powdered refractory metal or alloy

Info

Publication number
GB1353822A
GB1353822A GB1353822DA GB1353822A GB 1353822 A GB1353822 A GB 1353822A GB 1353822D A GB1353822D A GB 1353822DA GB 1353822 A GB1353822 A GB 1353822A
Authority
GB
United Kingdom
Prior art keywords
workpiece
sintering
chamber
powdered refractory
alloy
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
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.)
TSNII CHERNOIMETALL URGII IM I
Original Assignee
TSNII CHERNOIMETALL URGII IM I
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 TSNII CHERNOIMETALL URGII IM I filed Critical TSNII CHERNOIMETALL URGII IM I
Publication of GB1353822A publication Critical patent/GB1353822A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
    • 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
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

1353822 Sintering by electron beams TSENTRALNY NAUCHNO-ISSLEDOVATELSKY INSTITUT CHERNOI METALLURGII IMENI IP BARDINA 6 May 1971 13583/71 Heading C7D [Also in Divisions H1 and H5] A workpiece 9 formed of pressed powdered refractory material e.g. W, Mo or Nb is sintered in a chamber 1 under vacuum conditions by simultaneous electron bombardment of its entire surface. A cathode heater 6 surrounds the workpiece and is mounted on current leads 7. A pillar 8 vertically movable in chamber 1 supports the workpiece. Molybdenum shields 5 surround the cathode heater 6. The workpiece 9 is heated to a temperature equal to 10-15% of its melting point on the centigrade scale and held at this temperature until gas ceases to evolve therefrom. Further heating at the rate of 50 degrees/min is carried out up to the sintering temperature. (For Figure see next page)
GB1353822D 1971-05-06 1971-05-06 Sintering of workpieces formed of pressed powdered refractory metal or alloy Expired GB1353822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1358371 1971-05-06

Publications (1)

Publication Number Publication Date
GB1353822A true GB1353822A (en) 1974-05-22

Family

ID=10025607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1353822D Expired GB1353822A (en) 1971-05-06 1971-05-06 Sintering of workpieces formed of pressed powdered refractory metal or alloy

Country Status (2)

Country Link
FR (1) FR2135492B1 (en)
GB (1) GB1353822A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14301U1 (en) * 2014-07-09 2015-07-15 Plansee Se Method for producing a component
CN110636660A (en) * 2019-07-19 2019-12-31 韩振斌 Arc heating method and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14301U1 (en) * 2014-07-09 2015-07-15 Plansee Se Method for producing a component
CN110636660A (en) * 2019-07-19 2019-12-31 韩振斌 Arc heating method and apparatus

Also Published As

Publication number Publication date
FR2135492A1 (en) 1972-12-22
FR2135492B1 (en) 1973-05-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee