Surface treatment of stainless steel tubes
Generally, in terms of the surface treatment for stainless steel pipes, manufacturers have three methods, bleaching treatment, polishing treatment and coloring treatment. However, it’s unavoidable to have some problems during the surface treatment, mainly are the following problems. 1. Defects of welding crevice. When the defects are serious, usually can apply the mechanical polishing process to deal with it, however, this method may cause grinding marks and result in the uneven surface and influence the appearance of pipes. 2. Uneven surface. If only give pickling passivation to welding crevice, it will also cause the uneven surface and affect the appearance of pipes. 3. Uneven polishing. For the lager object, carrying pickling passivation after manual polishing is also difficult to reach the even surface and the processing is time and cost consuming. 4. The limited capacity of acid washing. The pickling passivation is not a panacea for all kind of surface trea...