GB628183A - Improvements in or relating to metallic powders and treatment thereof - Google Patents

Improvements in or relating to metallic powders and treatment thereof

Info

Publication number
GB628183A
GB628183A GB31039/46A GB3103946A GB628183A GB 628183 A GB628183 A GB 628183A GB 31039/46 A GB31039/46 A GB 31039/46A GB 3103946 A GB3103946 A GB 3103946A GB 628183 A GB628183 A GB 628183A
Authority
GB
United Kingdom
Prior art keywords
pipe
autoclave
steam
heat
remove
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
GB31039/46A
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.)
SK Wellman Corp
Original Assignee
SK Wellman Corp
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 SK Wellman Corp filed Critical SK Wellman Corp
Publication of GB628183A publication Critical patent/GB628183A/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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/142—Thermal or thermo-mechanical treatment

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

628,183. Heat-treating metal powders. WELLMAN CO., S. K. Oct. 18, 1946, No. 31039. Convention date, May 3. [Class 72] [Also in Group XIII] Metallic powder is dried and annealed after washing with dilute sulphuric acid to remove films of oxidation followed by water to remove the resulting acid solution, in a heat insulated autoclave 15. The air therein is exhausted through a pipe 23 and is replaced by superheated steam introduced through a pipe 21. The steam is forced downwardly through the powder which is supported on a filter cloth 16, and is discharged through a pipe 17. The steam drying and annealing treatment is 'followed by admitting through a pipe 22 a non-oxidizing gas to displace the superheated steam. The autoclave heat insulation 24 is then removed and water sprays cool the autoclave and its contents to room temperature.
GB31039/46A 1946-05-03 1946-10-18 Improvements in or relating to metallic powders and treatment thereof Expired GB628183A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US628183XA 1946-05-03 1946-05-03

Publications (1)

Publication Number Publication Date
GB628183A true GB628183A (en) 1949-08-24

Family

ID=22045025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31039/46A Expired GB628183A (en) 1946-05-03 1946-10-18 Improvements in or relating to metallic powders and treatment thereof

Country Status (1)

Country Link
GB (1) GB628183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137862A1 (en) * 1971-05-14 1972-12-29 Hoeganaes Ab

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137862A1 (en) * 1971-05-14 1972-12-29 Hoeganaes Ab

Similar Documents

Publication Publication Date Title
GB628183A (en) Improvements in or relating to metallic powders and treatment thereof
FR2058895A5 (en) Wire patenting process
GB278233A (en) Improvements in wire ropes
GB852405A (en) Improvements in and relating to the cold rolling of titanium strip
SE7406175L (en) PROCEDURE AND OVEN FACILITY FOR BAT MANUFACTURE OF METAL FUNGI.
GB1278828A (en) Improvements in or relating to the production of nitric acid
GB760166A (en) Process for heat treating mild steel articles
GB438444A (en) Improvements relating to the electric insulation of wire
GB629795A (en) Improvements relating to the manufacture of alternating electric current rectifiers
GB648528A (en) Improvements in and relating to the treatment of metal sulphates
SU59222A1 (en) Method of air drying charged negative plates of lead batteries
GB589796A (en) Improvements in and relating to the activation of catalysts
GB674960A (en) Method of forming on iron or an iron alloy a surface easily wettable by mercury
SU315412A1 (en) Method for producing vanadium trioxide
GB584322A (en) Improvements in or relating to the drying of bulbs, bottles and the like
GB587341A (en) Improvements in or relating to the insulation of electrical conductors
GB727875A (en) Process of preparing iron powder of improved electromagnetic properties
GB613514A (en) Improvements relating to the production of malleable iron
GB800275A (en) Improved method of treating cast iron and castings obtained thereby
GB598660A (en) Improvements in and relating to the production of iron powder
GB205985A (en) Preparation of ores and other metallurgical products for leaching process
GB1064568A (en) A process for preparing sulphuric acid
GB656146A (en) Improvements in treating iron-bearing materials
GB693906A (en) Catalyst regeneration
GB725298A (en) An improved method of producing iron powder