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热敏双金属是由两种或多种膨胀系数差异较大的金属或合金复合而成的一种热敏感功能材料,由于结构简单、使用方便和价格低廉而广泛地应用于彩色电视、家用电器、汽车、航空等机电工业作温度指示、温度控制和位移补偿之用。其生产工艺长期以来一直沿用热轧结合、熔合和双浇法等等,由于生产工艺落后,成材率低、成本高和产量低。尤其对于组元合金机械性能相差悬殊的双金属就更为困难。同时因其组元合金在高温中进行复合造成厚度比不均匀。导致双金属性能均匀性差,卷重小、不能满足电子工业引线的使用要求。 室温固相复合技术,就是在室温条件下、利用冷轧机采用大压缩率一次使二层组元
Thermosensitive bimetal is a kind of heat-sensitive functional material composed of two or more metals or alloys with large difference in thermal expansion coefficient. Due to its simple structure, easy use and low price, thermal bimetal is widely used in color television sets, household appliances , Automotive, aviation and other mechanical and electrical industry for temperature indication, temperature control and displacement compensation purposes. Its production process has long been used in combination with hot-rolled, fused and double-casting method, etc., due to backward production technology, low yield, high cost and low yield. In particular, the mechanical properties of the component alloys differ greatly from the bimetal is even more difficult. At the same time because of its component alloy at high temperature caused by the composite thickness ratio is not uniform. Resulting in poor uniformity of bimetallic performance, small volume, can not meet the requirements of the electronics industry lead. Room temperature solid-phase composite technology, that is, at room temperature, the use of cold rolling mill with a large compression rate once the two-component