The technical transformation practice in copper mineral processing plant in recent years was mainly introduced, And the successful experience was summed up so as to be used for spot produce.
介绍近年来铜选厂的技改实践，总结成功经验，供现场生产借鉴。
This paper discusses the source of heat for spot welding and the theory of diffusion welding of brass and red copper.
探讨了点焊热量的来源和黄铜与紫铜的扩散焊机理。
Spot welding procedure of copper with inlaid filler metal sheet HL204 is introduced, too.
介绍了铜与铜镶嵌片状钎料HL204点焊的工艺方法。
Usage: suitable for low carbon steel, stainless steel, copper soft glue wire etc spot and convex welding.
用途： 用途：适用低碳钢，不锈钢、铜软胶线等点焊和凸焊。
In spot welding of enameled wire to copper foil, selecting the appropriate welding electrodes and controlling the welding energy precisely are very important.
在铜箔漆包线的点焊中，选取合适的焊接电极和焊接能量进行精密控制非常重要。
It points out that the direct spot welding of pure copper can be realized by the correct choice of pole material, pole form, welding equipment and criterion.
找出了用通常方法不能点焊纯铜的原因，介绍了纯铜点焊焊核形成的过程，指出以本文为依据正确地选择电极材料、电极形状、焊接设备和确定焊接规范，就可实现纯铜的直接点。
The small pneumatic spot welder is specially designed for welding with the stainless steel, nickel, iron, tinned wire and sheet copper.
该小型气动点焊机是专为焊接不锈钢、镍、铁、镀锡铜线、铜片等所需而特殊设计的。
In the paper, the cathode spot movements and chopping current of pure graphite and copper-impregnated metallized graphite (Cu-C) in vacuum were investigated.
研究了纯石墨和铜-石墨材料的阴极斑点的特性及真空电弧截流现象。
At the same time, the straw syngas contains a spot of tar, sulphide and oxygen and so on, which result in the deactivation of copper-based catalyst.
同时秸秆气中还含有少量的焦油、硫化物、氧气等物质可以造成合成反应的铜基催化剂失活。
At the same time, the straw syngas contains a spot of tar, sulphide and oxygen and so on, which result in the deactivation of copper-based catalyst.
同时秸秆气中还含有少量的焦油、硫化物、氧气等物质可以造成合成反应的铜基催化剂失活。
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