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刀具热处理以后,必须经过一道清理工序,去掉钢件表面的氧化铁。清理工作一般采用酸洗,然后喷砂。过去由于酸洗所选用的酸液不合适,使工件酸洗后在表面产生很多麻点,造成大批的废品和次品。经过多次改进得出了—些经验,介绍给大家参考:根据使用各种不同酸液作腐触剂所得的效果,综合它们的优点改用混合腐蚀剂。这种腐蚀剂的配合成分如下:按着容量的比例,加1分的盐酸(工业盐酸),1分的硫酸(工业硫酸浓
After the tool heat treatment, must go through a clean-up process to remove the iron oxide on the surface of steel. Cleaning work generally pickling, sandblasting. In the past due to pickling the acid is not suitable for the selection, the workpiece pickling on the surface after a lot of pitting, resulting in a large number of waste and defective. After several improvements derived - some experience, to introduce for your reference: According to the effect of using a variety of different acid as a caustic agent, combined with the advantages of their use of mixed etchant. The composition of the etchant is as follows: 1 part hydrochloric acid (industrial hydrochloric acid), 1 part sulfuric acid (industrial sulfuric acid