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我厂生产的分电器中有一个打开触点的片弹簧,过去是採用进口的热处理钢带制成,由于供应困难,须改用T8A钢带;采用后者则进行热处理后才能使用。原热处理工艺是将零件成批放入盐炉中加热后淬水(含5%NaoH),因零件薄(厚0.3mm),从炉中取出至入水之前温度下降很快(提高加热温度又会导致晶粒粗化),加之是成批加热和盐的粘附作用,片与片
In our distributor, there is a leaf spring with contacts open. In the past, it was made of imported heat-treated steel strip. Due to the supply difficulties, T8A steel strip should be used instead of the T8A steel strip. The latter should be heat-treated before use. The original heat treatment process is to place the parts into the salt furnace heating hardened water (including 5% NaoH), due to thin parts (thickness 0.3mm), removed from the furnace to the water temperature dropped quickly (to increase the heating temperature will Resulting in grain coarsening), combined with batch heating and salt adhesion, tablets and tablets