Grinding method of silver jewelry: chemical grinding
Chemical grinding is to preferentially dissolve the micro-convex parts on the surface of materials in chemical media to obtain a shiny surface. The main advantage of this method is that it does not need complicated equipment, can polish multiple workpieces at the same time and has high efficiency. The core problem of chemical grinding is the preparation of grinding liquid.
Grinding method of silver jewelry: mechanical grinding.
Mechanical grinding is a grinding method to obtain smooth surface by cutting and plastic deformation of material surface. Generally, it is oilstone strips, wool wheels, sandpaper, etc. Is used, and manual work is the main task. For special parts such as the surface of the rotating body, auxiliary tools such as turntable can be used. The surface quality requires high-precision grinding with special grinding wheel. In grinding fluid containing grinding wheel, the machined surface of workpiece is squeezed and rotates at high speed. Using this technology, the surface roughness of each part can reach Ra0.008m m.
Grinding method of silver jewelry: ultrasonic grinding.