High-temperature bimetal
AssigneeProterial, Ltd.
InventorsYoshimitsu Oda, Masaaki Ishio
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Abstract
A high-temperature bimetal capable of being inhibited from considerably shifting from an original position when the temperature has fallen to an ordinary temperature is provided. This high-temperature bimetal (1) includes a high thermal expansion layer (2) made of austenitic stainless steel and a low thermal expansion layer (3) made of a thermosensitive magnetic metal having a Curie point and bonded to the high thermal expansion layer. The high-temperature bimetal is employed over both a high temperature range of not less than the Curie point and a low temperature range of less than the Curie point, while an upper limit of operating temperatures in the high temperature range of not less than the Curie point is at least 500° C.
Claims20
A high-temperature bimetal comprising:
- a high thermal expansion layer made of austenitic stainless steel;
- and
- a low thermal expansion layer made of a thermosensitive magnetic metal having a Curie point and bonded to said high thermal expansion layer,
- the high-temperature bimetal being employed over both a high temperature range of not less than said Curie point and a low temperature range of less than said Curie point, wherein an upper limit of operating temperatures in said high temperature range of not less than said Curie point is at least 500° C.,
- a first end portion of said low thermal expansion layer is fixed, and a vicinity of a second end portion of said low thermal expansion layer comes into contact with a fixed stopper member in said high temperature range of not less than said Curie point.
Dependencies are inferred from the claim text.