Method for manufacturing a compression ring

Details Method for manufacturing a compression ring Method for manufacturing a compression ring

1992-06-22

1993-09-07

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

29888076, B21H 106

Patent

active

052417484

ABSTRACT:
A compression ring provided with both ends having notches is formed on outer peripheral surface with a plasma nitrided layer and is formed on upper and lower surfaces and an inner peripheral surface with soft surface treatment layers. The upper and lower surfaces and the inner peripheral surface may be of base material surfaces.

REFERENCES:
patent: 3806139 (1974-04-01), Suzuki et al.
patent: 4085490 (1978-04-01), McCormick et al.
patent: 4570946 (1986-02-01), Tsuchiya et al.
patent: 5104132 (1992-04-01), Onoda et al.

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