There are a series of problems in batch production of plating chromium for lining inner bores of input tube in oil well pump such as parameter choice, clamp design, bath care and adjust.
油井抽油泵输入泵衬套内孔尺寸镀铬批量生产中存在着工艺参数准确选择、夹具合理设计、槽液维护和调整等一系列问题。
The utility model discloses a steam heating device for rereeling machines and silk cocoon reeling machines in silk industry, mainly composed of a steam input tube and a condensation returning tube.
本实用新型公开了一种用于丝绸业中复摇机、缫丝机的蒸汽加热装置。
It has the advantages of Iow computing cost and simple input data when using this method to study the tube plastic deformation.
本方法研究轧管变形，具有计算费用低，输入数据简单的特点。
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