铸件表面镀硬铬,大家认为有没有意义

2025-04-08 01:02:20
推荐回答(2个)
回答1:

铸件表面镀铬,最主要的工件是活塞环,其材料主要是灰铸铁、合金铸铁、球墨铸铁,我们从事150mm~1000mm直径活塞环电镀硬铬,我以十多年的铸铁硬铬电镀经验告诉你,铸件镀硬铬需要注意以下几点:
1.首先是材料表面质量,不能有疏松孔隙等缺陷,粗糙度6.4以上都没问题,越光洁镀层外观越好看;9 t- f8 w. f: E7 b
2.其次是电镀本身工艺问题,前处理、电镀、后处理都要特别小心,千万不要过腐蚀,否则结合力差,工件工作时易产生剥落。
总之要达到何种要求,应与客户充分沟通,目的都是满足客户要求。

回答2:

1.变色:特征铸件表面呈暗亮不同。危害:视暗亮程度,影响压铸件是否合格检验:目测或配合仪器原因:使用不适合的离型剂,离型剂含有不纯洁的物质,都会造成产品表面变色的现象。对策:使用适当的离型剂,加强离型剂的管理。2.流纹(流

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