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zhen dang guan yang ji leng que shui de li yong
Author(s): 
Pages: 55
Year: Issue:  12
Journal: Machinery

Abstract: <正> 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
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