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我厂大型卧式镗床和一部份大型车床,因严重划伤被迫停止使用,影响了抓革命,促生产。我们曾先后采用各种焊接方法进行补焊,都没有获得成功。后来采用手工钨极氩弧焊以磷青铜作焊丝,获得了理想的结果。补焊前的清理对划伤缺陷首先除掉油污,再用风动砂轮或其他机械方法打磨干净,使其露出基本金属光泽。最好是沿缺陷表面打磨,深度超过1毫米以上。然后在槽内倒入丙酮或酒精点燃,燃烧至金属表面呈淡白色为宜,如果
Our large horizontal boring machine and part of a large lathe, was severely scratched forced to stop using, affecting the grasp of revolution and promote production. We have used a variety of welding methods for welding, have not been successful. Later use of manual TIG welding to phosphor bronze wire, the desired result. Cleanup before repairing the scratches First remove the oil stains, and then use the wind grinding wheel or other mechanical method clean, so that it exposes the basic metallic luster. It is best polished along the surface of defects, more than 1 mm in depth. Then pour acetone or alcohol in the tank lit, burning to the metal surface pale white is appropriate, if