After acid pickling ＆ passivation processing, the inner surface is performed a blue-spot test according to CD130A3-84 Appendix C ,no blue point is find.
1：The products by pickling passivation treatment after, to which the surface passivation film blue dots, and the results were not inspection blue
2：This product is acid passivation treatment, the inner surface of its passive film to blue dot
test, the results were not blue dot
3： This product after acid pickling deactivation processing, carries on the blue spot examination to the among them surface's deactivated membrane, its result not blue spot
The product of the pickling and passivating treatment after, on the inside surface of the passivation film blue point inspection, the results were no blue point
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024