Thermometric bimetal of high strength at high temperature

Details Thermometric bimetal of high strength at high temperature Thermometric bimetal of high strength at high temperature

F - Mech Eng,Light,Heat,Weapons

03

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236/16

F03G 7/06 (2006.01) C22C 38/08 (2006.01) G12B 1/02 (2006.01) H01H 37/52 (2006.01)

Patent

CA 1041065

ABSTRACT OF THE DISCLOSURE: A shaped part consisting of thermometric bimetal and having a high strength at high temperature and comprising an active component and a passive component and, if desired, an electrically conductive interlayer for direct heating. The active component consists of an iron-nickel alloy having a coefficient of expansion of about 19 to 22 x 10-6 x °C-1 and composed of - 0.4% to 0.9% carbon, - 0.03% to 0.10% nitrogen, - 10.0% to 14.0% nickel, - 3.0% to 7.0% manganese, - 0.2% to 1.0% niobium and/or tantalum, - 0.5% to 1.5% vanadium, - up to 1.5% molybdenum, - up to 1.5% tungsten (the total of V+Mo+W must not exceed 2%), - up to 3.5% chromium, - up to 0.5% silicon, - balance iron with impurities which are due to the melting conditions. The passive component is metallic and has a coefficient of expansion of about 3 to 12 x 10-6 x °C-1.

253572

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