Synchronizer ring

Details Synchronizer ring Synchronizer ring

1997-05-29

1999-01-19

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

148332, 420 89, 420 99, 75246, C22C 3816

Patent

active

058615652

ABSTRACT:
A synchronizer ring performing synchronous sliding operation with and separating operation from a rotating object member, is composed of an Fe sintered alloy. The Fe sintered alloy comprises carbon of from 1.2 wt. % to 2.0 wt. %, copper of from over 15.0 wt. % to 25.0 wt. %, and the balance being iron and incidental impurities. A free Cu phase is precipitated in a matrix of the synchronizer ring. The synchronizer ring has a high scuffing resistance, an excellent friction characteristic, and sufficient abrasion resisting property and strength, and moreover, provides an easy manufacture thereof by means of a size working and is stable in quality.

REFERENCES:
patent: 4648903 (1987-03-01), Ikenoue et al.
patent: 4964908 (1990-10-01), Greethan
patent: 5007956 (1991-04-01), Fujita et al.
patent: 5370725 (1994-12-01), Kawamura et al.

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