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金属…腐蚀生成物除去的方法钢铁(1)10%柠檬酸按(NH4):HC。H 507电解(1 .IA/em“)(2)10%氰化钠(NaCN),电解(1 .6A/emZ)20分钟(3) 20%苛性钠+20%锌粉,20分钟。沸腾(4)20%盐酸(HCI)或硫酸(11:504)+缓蚀剂不锈钢(1)10%硝酸(HNO:),60“C(2)70%热硝酸(HNo3) 铝铝合金(1)浓硝酸(HNo。
Metal ... Corrosion Product Removal Method Steel (1) 10% Citric acid Press (NH4): HC. H 507 Electrolysis (1 .IA / em “) (2) 10% sodium cyanide (NaCN), electrolyzed (1.6 A / emZ) for 20 minutes (3) 20% caustic soda + 20% (1) 10% nitric acid (HNO :), 60 ”C (2) 70% hot nitric acid (HNo3) aluminum alloy (1) 20% hydrochloric acid and sulfuric acid ) Concentrated nitric acid (HNo.