GB571881A - Improvements in and relating to methods of forming intricate shapes from extruded metal powder - Google Patents

Improvements in and relating to methods of forming intricate shapes from extruded metal powder

Info

Publication number
GB571881A
GB571881A GB11406/43A GB1140643A GB571881A GB 571881 A GB571881 A GB 571881A GB 11406/43 A GB11406/43 A GB 11406/43A GB 1140643 A GB1140643 A GB 1140643A GB 571881 A GB571881 A GB 571881A
Authority
GB
United Kingdom
Prior art keywords
glycerine
mould
remove
july
heated
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
GB11406/43A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB571881A publication Critical patent/GB571881A/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
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding

Landscapes

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

Abstract

571,881. Obtaining coherent masses from powdered metals. BRITISH THOMSON-HOUSTON CO., Ltd. July 13, 1943, No. 11406. Convention date, July 14, 1942. [Class 82 (i)] . Articles of intricate shape or design and also long rods of 1 inch diameter or more are made from extruded plastic powdered metal that is placed in a mould and dried with simultaneous application of pressure. The compact is then heated to a higher temperature to remove plasticizing material and is finally sintered. The plasticizing medium may be glycerine or water and glycerine, gelatine, alkyd resin, caesin, &c. The volume of glycerine employed is from 35 to 40 per cent of the volume of the powdered metal. To reduce friction the partly extruded material, which may contain tungsten carbide and cobalt and be in the shape of rods, tubes, spirals, &c., may be wrapped in newspaper &c. to reduce friction between the mould and the material. The filled mould is heated to from 70‹ to 95‹ C. to remove moisture and a pressure of about 1000 lbs. is applied and maintained whilst the temperature is raised to 150‹ C. to remove the glycerine &c. The material is then sintered either in the mould or after removal therefrom. Specification 544,974, [Group XXII], is referred to.
GB11406/43A 1942-07-14 1943-07-13 Improvements in and relating to methods of forming intricate shapes from extruded metal powder Expired GB571881A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US571881XA 1942-07-14 1942-07-14

Publications (1)

Publication Number Publication Date
GB571881A true GB571881A (en) 1945-09-13

Family

ID=22009038

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11406/43A Expired GB571881A (en) 1942-07-14 1943-07-13 Improvements in and relating to methods of forming intricate shapes from extruded metal powder

Country Status (1)

Country Link
GB (1) GB571881A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744011A (en) * 1950-04-11 1956-05-01 Diffusion Alloys Ltd Process for the manufacture of sintered articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744011A (en) * 1950-04-11 1956-05-01 Diffusion Alloys Ltd Process for the manufacture of sintered articles

Similar Documents

Publication Publication Date Title
SE7703005L (en) PROCEDURE FOR MANUFACTURE OF ALUMINUM ALLOY
ES424654A1 (en) Process for the manufacture of rods of thermoplastic material, having internal capillary ducts, for the preparation of pen nibs incorporating capillary ink ducts
ES414239A1 (en) Steel powder containing phosphorus
ES429279A1 (en) Chromium-chromium carbide powder and article made therefrom
US2362507A (en) Method and means for producing commercial castings
GB571881A (en) Improvements in and relating to methods of forming intricate shapes from extruded metal powder
NL166616C (en) PROCESS FOR PREPARING PERFUME COMPOSITION AND PERFUMED ARTICLES CONTAINING THE PERFECT SUBSTANCE
BE848503A (en) CASTING OF OBJECTS INTO VITREOUS PRODUCT BY THE PROCESS CALLED "IN LOST WAX",
ES309313A1 (en) Method for lubricating the recipient and the mandrel of an extrusion press in the hot extrusion, in the form of metal bars or tubes. (Machine-translation by Google Translate, not legally binding)
GB993392A (en) Improvements in production of electrodeposited materials
ES421746A1 (en) Process of producing an aluminium-lead material
ES418850A1 (en) Method of manufacturing thin-walled hollow articles of polytetrafluorethylene, apparatus for performing the method and articles manufactured by the method
JPS51126308A (en) Process for producing a super alloy plate
GB1051449A (en)
GB742963A (en) Method of forming articles from comminuted material, and articles made therefrom
US2444849A (en) Flint
GB879590A (en) Improvements relating to the forming of sintered articles
GB1142684A (en) Method and composition for manufacturing ceramic articles
JPS5245385A (en) Process for production of tube bundle
SU420398A1 (en)
GB565211A (en) Improvements in or relating to apparatus for the manufacture of moulded articles from graphite and like powders
AT295682B (en) Process for the production of new, water-soluble disazo dyes and their 1: 1 copper, 1: 2 chromium and 1: 2 cobalt complex compounds
Eck Application of Powder Metallurgy to High-Melting Point Metals
SU802054A1 (en) Method of obtaining moulded coating on elements of an article
ES404596A1 (en) Procedure for the reticulation of poliolephines or other thermoplastic materials. (Machine-translation by Google Translate, not legally binding)