发明名称 |
Corrosion resistance test process for article formed of metal material and coating |
摘要 |
It is an object of the present invention to provide a corrosion resistance test process, wherein the estimation of the corrosion resistance of an article formed of a metal material and a coating can be carried out synthetically and in a short time. In carrying out a corrosion resistance test, the article is immersed into an electrolytic solution and then, a voltage is applied to the metal material to carry out a metal material corroding step and a coating peeling-off step alternatively and repeatedly. The voltage applied to the metal material is a superimposed voltage Vd+Va resulting from superimposition of a DC voltage Vd and an AC voltage Va. A voltage condition of Vd<0 and Vd+Va>0 is established at the metal material corroding step, while a voltage condition of Vd<0 and Vd+Va<0 is established at the coating peeling-off step.
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申请公布号 |
US5972198(A) |
申请公布日期 |
1999.10.26 |
申请号 |
US19980071915 |
申请日期 |
1998.05.05 |
申请人 |
MITSUBA CORPORATION;HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
TAKEUCHI, TOSHIHIRO;IMANAKA, TADASHI;KIUCHI, KEIJI;OHTA, HIDEMICHI |
分类号 |
G01N17/04;G01N17/00;G01N17/02;G01N27/26;(IPC1-7):G01N27/26 |
主分类号 |
G01N17/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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