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GB937573A - Improvements in or relating to sintered metal tubes - Google Patents

Improvements in or relating to sintered metal tubes

Info

Publication number
GB937573A
GB937573A GB6904/61A GB690461A GB937573A GB 937573 A GB937573 A GB 937573A GB 6904/61 A GB6904/61 A GB 6904/61A GB 690461 A GB690461 A GB 690461A GB 937573 A GB937573 A GB 937573A
Authority
GB
United Kingdom
Prior art keywords
tube
sintering
metal
powder
clearance
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
GB6904/61A
Inventor
Michel Eudier
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB937573A publication Critical patent/GB937573A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

937,573. Powder metallurgy. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 24, 1961 [March 11, 1960], No. 6904/61. Class 82. A process for zone sintering a powder metal tube comprises forming a tube by extrusion or centrifuging a mixture of a powdered metal and a binder, inserting the " green " tube into a refractory tube which is inclined at an angle of 5-30 degrees to the horizontal, rotating the assembly at a speed corresponding to at least 1 revolution during the time required for sintering, and moving a hot zone along the outer tube from the bottom to the top of the tube to effect sintering of the inner tube. The clearance between the diameter of the inner and outer tubes should be at least 0.5 mm. and the speed of rotation should be at least 1-6 revolutions per head. The metal powders specified are iron, bronze and nickel and the binders are collodion, P.V.A. or gum tragacanth. As shown in the drawing, a metal powder tube 6 is inserted into a refractory or stainless steel tube 1 which is rotated. A clearance of 1 mm. is allowed between the tubes and the outer tube is evacuated or purged with hydrogen. An annular electric resistance furnace 8 surrounds tube 1 and during rotation of the tube the furnace is moved progressively along the tube to effect the sintering of the inner tube at a temperature of 600-1200‹ C.
GB6904/61A 1960-03-11 1961-02-24 Improvements in or relating to sintered metal tubes Expired GB937573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR820988A FR1259408A (en) 1960-03-11 1960-03-11 Process and installation of sintering for obtaining metal tubes

Publications (1)

Publication Number Publication Date
GB937573A true GB937573A (en) 1963-09-25

Family

ID=8726840

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6904/61A Expired GB937573A (en) 1960-03-11 1961-02-24 Improvements in or relating to sintered metal tubes

Country Status (8)

Country Link
US (1) US3159482A (en)
BE (1) BE600608A (en)
CH (1) CH373247A (en)
DE (1) DE1289625B (en)
FR (1) FR1259408A (en)
GB (1) GB937573A (en)
LU (1) LU39834A1 (en)
NL (2) NL262164A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491557A (en) * 1982-08-14 1985-01-01 Mtu Motoren-Und Turbinen-Union Munchen Gmbh Method for permanently connecting discrete structural parts

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678567A (en) * 1970-06-18 1972-07-25 Int Nickel Co Production of clad metal articles
CN103231040B (en) * 2013-04-27 2015-09-09 暨南大学 The micro cautery of degradable magnesium alloy microcapillary and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1226470A (en) * 1915-02-20 1917-05-15 Gen Electric Refractory-metal tube.
US1531666A (en) * 1922-06-12 1925-03-31 Clemens A Laise Refractory metallic body of high density and process for making the same
US2372203A (en) * 1943-09-06 1945-03-27 Mallory & Co Inc P R Sintered metal article and process of making
US2431690A (en) * 1945-02-21 1947-12-02 Westinghouse Electric Corp Consolidation of metal powder
GB732182A (en) * 1952-10-01 1955-06-22 Metro Cutanit Ltd Improvements relating to the sintering of powder metallurgical shaped articles
NL89230C (en) * 1952-12-17 1900-01-01
DE1056840B (en) * 1953-02-14 1959-05-06 Siemens Ag Method for distributing foreign matter components in semiconductor rods by a crucible-free zone melting method
DE1215649B (en) * 1954-06-30 1966-05-05 Siemens Ag Process for producing an extremely pure, rod-shaped semiconductor crystal
US2936505A (en) * 1958-10-16 1960-05-17 Curtiss Wright Corp Method and apparatus for forming refractory articles
FR1237168A (en) * 1959-06-10 1960-07-29 Metallurgie Francaise Apparatus for manufacturing bars or wires by sintering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491557A (en) * 1982-08-14 1985-01-01 Mtu Motoren-Und Turbinen-Union Munchen Gmbh Method for permanently connecting discrete structural parts

Also Published As

Publication number Publication date
BE600608A (en) 1961-06-16
FR1259408A (en) 1961-04-28
NL262164A (en)
DE1289625B (en) 1969-02-20
LU39834A1 (en) 1961-04-25
NL124042C (en)
CH373247A (en) 1963-11-15
US3159482A (en) 1964-12-01

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