SE8704958L - PROCEDURE FOR PREPARING THE SUBJECT OR PROFILES - Google Patents
PROCEDURE FOR PREPARING THE SUBJECT OR PROFILESInfo
- Publication number
- SE8704958L SE8704958L SE8704958A SE8704958A SE8704958L SE 8704958 L SE8704958 L SE 8704958L SE 8704958 A SE8704958 A SE 8704958A SE 8704958 A SE8704958 A SE 8704958A SE 8704958 L SE8704958 L SE 8704958L
- Authority
- SE
- Sweden
- Prior art keywords
- powder
- profiles
- preparing
- procedure
- subject
- Prior art date
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
-
- 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
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
A molten mass of steel is atomised by means of pressurised water; the irregular steel powder produced is subjected to a reduction annealing to remove the oxide skin surrounding the individual powder grains, plate-shaped compacts produced from the powder and a sheet-metal case is filled with these compacts to a desired level and the resulting preform extruded.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3643016A DE3643016C1 (en) | 1986-12-12 | 1986-12-12 | Process for the production of blocks or profiles |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8704958D0 SE8704958D0 (en) | 1987-12-11 |
SE8704958L true SE8704958L (en) | 1988-06-13 |
SE500829C2 SE500829C2 (en) | 1994-09-12 |
Family
ID=6316349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8704958A SE500829C2 (en) | 1986-12-12 | 1987-12-11 | Procedure for the preparation of substances or profiles |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3643016C1 (en) |
GB (1) | GB2198749B (en) |
SE (1) | SE500829C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3928436C1 (en) * | 1989-08-24 | 1991-04-18 | Mannesmann Ag, 4000 Duesseldorf, De | |
US6837915B2 (en) * | 2002-09-20 | 2005-01-04 | Scm Metal Products, Inc. | High density, metal-based materials having low coefficients of friction and wear rates |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB544974A (en) * | 1939-11-04 | 1942-05-06 | British Thomson Houston Co Ltd | Improved method of and apparatus for forming rods, tubes and like articles by extrusion |
GB597638A (en) * | 1943-08-02 | 1948-01-30 | British Thomson Houston Co Ltd | Improvements relating to methods of and apparatus for extruding powdered materials |
GB732603A (en) * | 1953-05-11 | 1955-06-29 | Ici Ltd | Improvements in or relating to methods of and apparatus for the direct extrusion of a metal |
GB1069478A (en) * | 1964-04-06 | 1967-05-17 | Smith Corp A O | Method of making steel powder |
GB1349452A (en) * | 1970-09-10 | 1974-04-03 | Ti Group Services Ltd | Production of an aluminium product |
US3766769A (en) * | 1972-06-22 | 1973-10-23 | Western Electric Co | Method of and means for commencing a deforming operation, e. g., hydrostatic extrusion of a billet |
DE2232760C2 (en) * | 1972-06-29 | 1973-10-11 | Mannesmann Ag, 4000 Duesseldorf | Method of changing the bulk density of iron powder |
US3824097A (en) * | 1972-12-19 | 1974-07-16 | Federal Mogul Corp | Process for compacting metal powder |
JPS5219823B2 (en) * | 1972-12-25 | 1977-05-31 | ||
US3834004A (en) * | 1973-03-01 | 1974-09-10 | Metal Innovations Inc | Method of producing tool steel billets from water atomized metal powder |
DE2310784B2 (en) * | 1973-03-03 | 1975-03-13 | Fa. Dr. Eugen Duerrwaechter Doduco, 7530 Pforzheim | Process for the production of a ductile silver-metal oxide semi-finished product |
DE2419014C3 (en) * | 1974-04-19 | 1985-08-01 | Nyby Bruks AB, Nybybruk | Method of manufacturing stainless steel pipes and application of the method to the manufacture of composite pipes |
GB1602582A (en) * | 1977-06-24 | 1981-11-11 | American Can Co | Ferrous powder metallurgy |
DE2823001C2 (en) * | 1978-05-26 | 1984-08-23 | Glacier Gmbh Deva Werke, 3570 Stadtallendorf | Use of an extrusion process on higher molecular weight compounds |
DE3009916C2 (en) * | 1980-03-14 | 1985-10-10 | Nyby Uddeholm AB, Torshälla | Extruded billets for the powder metallurgical production of pipes and processes for their production |
BR8200106A (en) * | 1982-01-11 | 1983-09-13 | Metal Leve Sa | PROCESS FOR MANUFACTURING OF RING-HOLDERS BY METALLURGY OF OP, FROM AUSTENITIC FERROUS ALLOYS |
-
1986
- 1986-12-12 DE DE3643016A patent/DE3643016C1/en not_active Expired
-
1987
- 1987-12-03 GB GB8728325A patent/GB2198749B/en not_active Expired - Fee Related
- 1987-12-11 SE SE8704958A patent/SE500829C2/en unknown
Also Published As
Publication number | Publication date |
---|---|
SE500829C2 (en) | 1994-09-12 |
GB2198749A (en) | 1988-06-22 |
GB8728325D0 (en) | 1988-01-06 |
GB2198749B (en) | 1990-07-25 |
SE8704958D0 (en) | 1987-12-11 |
DE3643016C1 (en) | 1987-08-13 |
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