Method for manufacturing bimetal

Details Method for manufacturing bimetal Method for manufacturing bimetal

1979-07-11

1981-09-22

Dean, R.

Metal treatment

Compositions

Heat treating

148 12R, C22F 100, C21D 700

Patent

active

042908280

ABSTRACT:
A bimetal is disclosed having a high, rapid deflection over a specified temperature range, including a high expansion metal alloy component having a high thermal expansion coefficient that changes rapidy at 50.times.10.sup.-6 /.degree.C. or greater at a temperature of between about 100.degree. C. and 250.degree. C. and containing from 15-30% by weight of manganeses, the balance of iron. The second component has a substantially constant thermal expansion coefficient regardless of the temperature change, and is preferably a stainless steel. These bimetals are used in circuit breakers, thermal protectors and the like.

REFERENCES:
patent: 3238071 (1966-03-01), Holtzman et al.
Yershova et al., Fiz. Metal Metalloved, 13, No. 1, pp. 107-113, 1962.
Lysak et al., Fiz. Metal Metalloved, 25, No. 3, pp. 562-565, 1968.

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