用自来水作为工件高频加热后的冷却介质,在我国是很普遍的,因为它有许多优点。但是由于它的温度受气候的影响,因此一年之内温度差可达30°～40℃,尤其是冬季,经常有寒潮的影响,则水温的波动更大。如果在操作上不注意,容易造成产品成批报废。我厂生产的45号钢凸轮 Using tap water as the cooling medium after high-frequency heating of the workpiece is very common in our country because it has many advantages. However, due to its temperature affected by the climate, so the temperature difference within a year up to 30 ° ~ 40 ℃, especially in winter, often cold wave, the water temperature fluctuations. If you do not pay attention to the operation, easily lead to product batch scrap. I plant 45 steel cam