摘要
S31803奥氏体-铁素体双相不锈钢(%:0.03C、22.05Cr、5.23Ni、3.10Mo、0.16N)合金含量高,氧化层中所含的合金元素多,氧化物结构复杂,不易酸洗。通过正交试验得出H_2SO_4 220g/L,NaCl 30 g/L,添加剂10 g/L,在60℃平均酸洗时间57.2 min,使酸洗后的钢板表面色泽均匀,酸洗合格率达100%。
Due to higher alloy content in steel, plenty of alloy element in oxide layer and complexity of oxide structure, there are some trouble in pickling process for S31803 austenite-ferrite duplex phase stainless steel （0. 03C, 22. 05Cr, 5.23Ni, 3. 10Mo, 0. 16N）. I was obtained by orthagonal test that with pickling solution H2SO4 220 g/L, NaCl 30 g/L, addition agent 10 g/L at 60 ℃ for average pickling time 57.2 min, after pickling the colour and gloss of plate surface was uniform and up to standard rate was 100%.
出处
《特殊钢》
北大核心
2008年第2期67-68,共2页
Special Steel
关键词
双相不锈钢S31803
氧化区
酸洗工艺
S31803 Duplex Phase Stainless Steel, Oxide Layer, Pickling Process
