Title:
【発明の名称】高速度鋼を基礎とする焼結合金
Document Type and Number:
Japanese Patent JPS63500107
Kind Code:
A
Abstract:
PCT No. PCT/DE86/00239 Sec. 371 Date Feb. 17, 1987 Sec. 102(e) Date Feb. 17, 1987 PCT Filed Jun. 7, 1986 PCT Pub. No. WO87/00207 PCT Pub. Date Jan. 15, 1987.Sinter alloys based on high-speed steel are proposed, which can be used for producing wearing parts in machinery and vehicle contruction. The sinter alloys comprise a mixture of a powder of a high-speed steel and an unalloyed or a low-alloy iron powder. While the high-speed steel powder forms liquid phases upon sintering, the mixture components can be drawn from either the group of iron alloys that do not form liquid phases or the group of iron alloys that do form liquid phases. The proposed alloys cannot be sintered to the density of the high-speed steels, nor do they quite attain the strength values of such steels, but in the cases where these limit values for strength are not critical they have the decisive advantage that they can be sintered without deformation in standard protective gas furnaces lacking extreme temperature constancy and that they furthermore exhibit only very slight shrinkage. An example that has been demonstrated to be particularly valuable is the mixture of 65% by mass of the high-speed steel S 6.5.2 and 35% by mass of a phosphorus alloy iron powder having 0.45% P and 2% Si.
Inventors:
Heinze, Barbara
Kotsuho, Hans-Peter
Loitwe, Gundmar
Obenaus, hans
Kotsuho, Hans-Peter
Loitwe, Gundmar
Obenaus, hans
Application Number:
JP50404086A
Publication Date:
January 14, 1988
Filing Date:
June 07, 1986
Export Citation:
Assignee:
Roberto Botushiyu Gezershyaft Mitt Beshiyu Renktel Haftung
International Classes:
C22C33/02; C22C38/00; C22C38/08; C22C38/46; (IPC1-7): C22C33/02; C22C38/00; C22C38/08; C22C38/46
Domestic Patent References:
| JPS59226101A | 1984-12-19 | |||
| JPS5741543A | 1982-03-08 | |||
| JPS5141082A | 1976-04-06 | |||
| JPS4990611A | 1974-08-29 |
Attorney, Agent or Firm:
Toshio Yano