0Cr18Ni9不锈钢钣金件的锈蚀防护工艺  

Corrosion Protection Technology of 0Cr18Ni9 Stainless Steel Sheet Metal Parts

作　　者：张洪涛 徐俊辉 王翀 ZHANG Hongtao;XU Junhui;WANG Chong(Manufacturing Engineering Department of Shaanxi Aircraft Industry Co.,Ltd.,Hanzhong 723213,China)

机构地区：[1]陕西飞机工业有限责任公司,汉中723213

出　　处：《腐蚀与防护》2024年第4期59-62,共4页Corrosion & Protection

摘　　要：针对0Cr18Ni9不锈钢深落压钣金件因热处理造成表面氧化皮较重,使用过程中出现锈蚀的问题,制定了磁力抛光、磁力抛光+钝化和钝化+磁力抛光等3种锈蚀防护改进措施,并与未处理试样进行了对比。结果表明:未处理、仅磁力抛光处理的试样经过96 h盐雾试验后腐蚀严重,经磁力抛光+钝化处理的试样经96 h盐雾试验后发生局部点腐蚀;而经钝化处理+磁力抛光的试样经96 h盐雾试验后未出现腐蚀,在960 h盐雾试验后仅出现局部锈蚀,表面依然光亮,耐盐雾时间是其余3种试样的10倍以上。Three corrosion protection measures,including magnetic polishing,magnetic polishing+passivation and passivation+magnetic polishing were developed to address the problem of heavy surface oxidation caused by heat treatment of 0Cr18Ni9 stainless steel deep drop pressed sheet metal parts,which resulted in corrosion during use,and compared with untreated samples.The results show that the untreated and magnetic polishing treated samples exhibited severe corrosion after 96 hours of salt spray test,while the samples treated with magnetic polishing and passivation exhibited localized pitting after 96 hours of salt spray test.The samples treated with passivation and magnetic polishing did not show corrosion after 96 hours of salt spray testing.After 960 hours of salt spray testing,only localizd rust appeared,and the surface remained bright,and the salt spray resistance time was 10 times more than those of the other three samples.

关 键 词：0Cr18Ni9不锈钢钣金件 热处理 锈蚀 防护措施 

分 类 号：TG174[金属学及工艺—金属表面处理]