How To Control The Surface Quality Of 304 Stainless Steel Wire Mesh?

The appearance quality of 304 stainless steel wire mesh is mainly determined by the heat treatment and pickling process of stainless steel wire. If the thickness of oxygen skin formed by the heat treatment process is uniform, and the surface roughness of base metal in thick and thin places is different, the pickling process can not improve the surface roughness. Therefore, in order to control the appearance quality of stainless steel wire, we must strictly control the two procedures of heat treatment and pickling.

How to make the oxygen peeling of heat treatment spread evenly? To achieve this, we must pay attention to the following problems:

If the surface of stainless steel wire is attached to oil stains during heat treatment, the thickness of oxygen peeling will be different from that where there are no oil stains, and it will carburize. The metal under the oxygen skin will be corroded by acid in the pickling process. Do not touch the stainless steel wire during heat treatment, because the fingerprint will also affect the oxygen peeling quality of heat treatment.

If the stainless steel wire is found to have oil stains before high-temperature processing, it must be fully degreased in trichloroethylene degreasing agent and caustic soda solution, then cleaned with warm water, and then heat treated.

The atmosphere in 304 stainless steel wire mesh furnace is different in all parts, and the formation of oxygen scale will also change, which is also the end cause of uniform warping after pickling. Therefore, during heating, the atmosphere of all parts in the furnace must be the same. Therefore, we must also think about the circulation of the problem atmosphere.