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高速钢的淬火、配火规程很早就巳确定,至今仍无甚变化。但高速钢淬火和配火之间,在时间上差别是很悬殊的,例如一个直径为10公厘的实心工件,淬火的予热与加热一共约需时间为十分钟左右,而配火则要700～900分钟。这个差别限制了生产率的提高和生产周期的缩短,致使配火时所用工时、电能过多的浪费并使设备利用率降低,为了提高生产率,缩短生产周期,我们对配火工艺规程进行了研究,并企图在保证质量的条件下,找到一个提高温度缩短时间的新配火规程。实验材料是厶9(P 9)其成分如表1。
High-speed steel quenching, fire distribution procedures have long been determined, still no change. However, high-speed steel quenching and distribution between the fire, the time difference is very poor, for example, a diameter of 10 mm solid workpiece, quenching the heat and heating a total of about 10 minutes, while the fire is 700 ~ 900 minutes. This difference limits the productivity increase and the shortening of the production cycle, resulting in the time spent in matching fire, excessive power wasted and equipment utilization is reduced. In order to improve productivity and shorten the production cycle, we conducted a study on the matching process, And attempt to find a new fire-fighting procedure that will increase the temperature and shorten the time while ensuring the quality. The experimental material is 厶 9 (P 9) its composition shown in Table 1.