Coil retainer for engine valve and preparation of the same

Details Coil retainer for engine valve and preparation of the same Coil retainer for engine valve and preparation of the same

1995-12-28

1997-04-01

Ip, Sikyin

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148697, 148700, 148439, 420534, F01L 310, C22F 104

Patent

active

056161921

ABSTRACT:
There is provided a coil retainer for an engine valve to be mounted therewithin, said retainer prepared by forging of an aluminum-based alloy of the following composition; followed by special combined heat treatments to convert into an alloy material having a dendrite arm spacing value less than 15 micrometer; and the composition being composed of

REFERENCES:
patent: 4786340 (1988-11-01), Ogawa et al.

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