Polishing of stainless steel case
The stainless steel case is polished to modify the surface of the stainless steel chassis with flexible polishing tools and abrasive particles or other polishing media. Polishing does not improve the dimensional accuracy or geometric accuracy of stainless steel cabinets, but rather for smooth surfaces or specular gloss, and sometimes to eliminate gloss (extinction). A polishing wheel is usually used as a polishing tool. The polishing wheel is generally formed by stacking a plurality of layers of canvas, felt or leather, and the two sides are clamped by a metal circular plate, and the rim is coated with a polishing agent uniformly mixed with fine powder abrasive and grease.
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During polishing, the high-speed rotating polishing wheel (circumferential speed of 20 m / sec or more) is pressed against the workpiece, causing the abrasive to roll and micro-cut on the surface of the workpiece, thereby obtaining a bright machined surface with a surface roughness of Ra0.63. ~0.01 microns; when a non-greasy matting finish is used, the shiny surface can be matted to improve appearance. In the case of fine polishing, steel balls and fur fragments are placed in the wooden barrel, and the surface is rotated for several hours to obtain a dazzling and bright surface.