What are the uses of metal etching?

　　(1) Deburring. After punching or machining, there are burrs on the end face or edges and corners of the stainless steel plate, which will not only affect the appearance of the product, but also affect the use effect of the machine. If mechanical polishing or technical deburring is selected, not only the work efficiency is low, but also can not meet the planned fillet chamfer requirements. Special chemical polishing or electrochemical polishing solution is selected to corrode the burrs, Without damaging the surface finish, it can even improve the surface finish. This is the combination of surface treatment and machining.

　　(2) Get rid of excess scales. For example, the wire diameter of a stainless steel tension spring steel wire shall meet the requirements φ 0.8 ~ 0.84, but the actual wire diameter is and 0.9. How to make the finished product uniform φ 0.8 ~ 0.84, how to remove burrs during machining and oxide film during heat treatment? If it is necessary to use mechanical polishing and clamp repair to remove burrs, scale and 0.06 ~ 0.1mm on the circumference of steel wire diameter, it is not only poor processing technology, low efficiency, but also difficult to ensure the processing quality. Using the special solution of chemical polishing, the intention of removing burr and oxide scale and removing excess wire diameter uniformly can be achieved at the same time. For example, for some sheet stainless steel parts with larger scale, the special solution of electrochemical polishing can also be used to properly reduce the thickness scale to meet the product scale requirements.

　　(3) Milling. The parts to be processed of stainless steel materials are exposed in the chemical milling fluid for milling, and then the parts with specific shape or scale are obtained to achieve the purpose of three-dimensional and decorative. By using screen missing printing, characters, patterns and patterns can be chemically milled on the surface of stainless steel to a specific depth, and then filled with specific different colors, such as medals, signs, nameplates, etc.

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