用分子中含有长链烷基的有机酸酯缓蚀剂A溶液对康风连续挤压铝管进行在线钝化处理,A分子在铝管表面迅速自组装成致密疏水的耐蚀膜.用析氢试验、盐雾试验和电化学试验等检测钝化铝管的耐腐蚀性能,结果表明该铝管具有良好的耐蚀性能.该钝化剂对铝管钝化成膜的时间少于2 s,且钝化液中不含重金属和氟化物等有害物质,通过欧盟ROHS标准,具有高的工业应用价值.

Aluminum tube used to evaporator in refrigerator or ice tank was passivated on line by the solution of organic acid ester inhibitor A of corrosion in whose molecule there is a long line alkyl.Corrosion resistance of passivated aluminum tube was tested by method of release hydrogen,salt fog and electrochemistry,and these result proved that the passivated aluminum tube had excellent ability of corrosion resistance.The passivation time of this passivator solution was less than 5 second,and there was not any heavy metal and fluorid.The passivated aluminum could meet the ROHS standard of Europel,and was invaluable in domain of industry application.