Thermal deformation member for electron tube,color picture tube using the same,thermal deformation member for current controller and circuit breaker

摘要

A thermal deformation member (1) for electron tubes or current controllers composed of a multilayer body formed by stacking a high thermal expansion member (1) made of, for example, an Fe-Ni-Cr alloy, an intermediate member (4) made of one kind of metal selected from among Fe, Al, and Cu or an alloy containing some of the metals, and a low thermal expansion member (2) made of, for example, an Fe-Ni alloy. The coefficient of thermal expansion * small Greek alpha *3 of the intermediate member (4) is greater than that a 2 of the low thermal expansion member (2) and smaller than that * small Greek alpha *, the high thermal expansion member 1 (* small Greek alpha *1 * small Greek alpha *3 * small Greek alpha *2 ). The intermediate member (4) reduces the manufacturing cost and improves the workability without deteriorating the strength and long-term reliability of the members. A color picture tube is manufactured using the above-mentioned thermal deformation member for electron tubes in the thermal deformation section of a frame holder one end of which is fixed to a panel and the other end of which is firmly stuck to the mask frame of a shadow mask. An overcurrent protector is manufactured using the above-mentioned thermal deformation member for current controllers in the thermal deformation section which opens a contract.