Stainless steel pipe surface quality inspection method?
The use of stainless steel pipe is still more after the use of a long time, it is necessary to check it, which is a very critical step, in order to ensure the quality and safety of stainless steel pipe, so we must ensure the quality of the pipe when testing. Below we will simply understand the surface quality inspection method of stainless steel pipe.
1, if there is debris on the surface of the stainless steel pipe, especially when there is dust adhesion, heating will of course have an impact on the oxide.
2, if the surface of the workpiece is attached to the lubricating oil during cold processing, etc., fully degreasing in trichloroethylene degreasing agent and caustic soda solution, and then cleaning with warm water and then heat treatment.
Stainless steel pipe
3, the difference in the atmosphere of the stainless steel tube furnace furnace atmosphere is different in each part, the formation of oxide will also change, which is also the cause of uneven pickling. Therefore, the atmosphere in all parts of the furnace is the same when heating.
4, the object in direct contact with the heating workpiece can be used after full drying. However, if it is placed at room temperature after drying, water will still condense on the surface of the workpiece in the case of high humidity. So dry it before use.
