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二硅化钼发热体是由园柱状的冷端和U状的发热端焊接而成。这种发热体的特点是最高使用温度1800℃,发热体长时间使用阻值不发生变化,阻值的温度系数几乎以正的直线状变化等。这里简要介绍的是二硅化钼发热体在低温领域的新用途。 众所周知,要进行渗碳等热处理作业,必须在特殊的可控气氛中进行。另外,其他的热处理作业,例如在淬火的情况下,为了保证被处理物的表面含碳量,而不被氧化和脱碳,通常也需要在可控保护气氛中进行。
The molybdenum disilicide heating element is formed by the cylindrical cold end and U-shaped heating end welded together. This heating element is characterized by a maximum temperature of 1800 ℃, the heating element for a long time the use of resistance does not change, the temperature coefficient of resistance almost straight positive changes. Here is a brief introduction of the new use of molybdenum disilicide heating element in the field of low temperature. As we all know, to carry out carburizing and other heat treatment operations, must be carried out in a special controlled atmosphere. In addition, other heat treatment work, for example, in the case of quenching, usually requires controllable atmosphere in order to ensure the carbon content on the surface of the workpiece without being oxidized and decarburized.