Stainless steel polishing can be divided into belt and plate, also divided into different materials, thickness, different materials, different thickness, divided into different polishing methods! At present, the commonly used polishing methods are mechanical polishing, chemical polishing and electrolytic polishing!

At present, the commonly used mirror polishing equipment is mainly to turn stainless steel plate or other types of metal plate anticlockwise through the grinding plate with adjustable pressure, the correction wheel drives the workpiece to rotate, and the gravity pressure is applied to the workpiece, plus matching grinding emulsion (mainly metal oxide, inorganic strong acid, organic lubricant and weak alkaline detergent), The workpiece and the grinding plate are in relative running friction to achieve the purpose of grinding and polishing. Mirror polishing machine can be divided into three steps: grinding, polishing and grinding; The matching abrasive, grinding material and grinding fluid are also different according to different sections.

Stainless steel plates of various materials and thicknesses can be processed into different degrees of mirror effect; Due to the macro roughness of base metal (Ra value of surface roughness is generally DA), the surface roughness should be ground to a certain value (RA ≤ 0.8) by grinding μ m) And then grind it to "mirror surface" by polishing and polishing.

There are many kinds of surface states of stainless steel. Generally, the surface of master batch for mirror grinding mainly includes 2B, 2BB, 2D, Ba, No.1, etc. the materials suitable for mirror grinding mainly include sus304304j1, 316L, 201202430441 and other austenitic and ferritic stainless steels. The final mirror effect is also determined by the material and surface of the master batch; Generally speaking, the grinding effect of 300 series stainless steel is slightly better than that of other series materials, Ba is the best, 2b is the second, and No.1 is the worst.

In addition, the polishing emulsion, polishing machine and polishing emulsion circulation system contact, plus all kinds of acidic and alkaline material corrosion, the polishing emulsion and polishing machine must have a good anti-corrosion ability. In addition, due to the high speed rotation of the polishing machine and the friction of the metal plate, a lot of heat is generated (especially the poor thermal conductivity of austenitic stainless steel); Because the work done by grinding will produce a lot of heat in the same area, which will cause the change of metal surface stress, thus affecting the micro change of metal physical state, and eventually leading to the flatness of metal, so the polishing equipment and polishing environment should have good heat dissipation conditions.

Generally, the polished thickness of mirror stainless steel belt is 0.05-1.5mm, and the polished thickness of plate is 1.0-3.0mm. The material can be divided into 201, 304, 301, 316, 430, 444, etc!

Polished stainless steel is called mirror stainless steel or 8K stainless steel. It is widely used in decoration, home, electronics, mobile phone, decoration, automobile, elevator and other industries!