At present, the commonly used copper for casting statues is mainly brass, tin bronze, and pure copper. Now, the commonly used casting methods for sculpture art casting are lost wax and sand casting. The lost wax method is a traditional method, and sand casting is a commonly used method in modern times. After casting, the cast copper billet is sandblasted and cleaned, and cut, grinded, heat treated, shaped, and machined. , Polishing and other treatments. When processing, first cut off the extra parts such as pouring gate, and then carry out sandblasting treatment. Split welding of cast copper parts. After assembly, the gaps are filled and reinforced, and the skeleton is welded in accordance with the requirements of the shape and anti-corrosion treatment. Finally, sanding is carried out, and different types of sandpaper are used for coarse grinding and fine grinding and water grinding, most of which must be done manually. The machine polishing cannot be rounded and natural, and it is difficult to be completely traceless, so it must be polished by hand with abrasive paper. At the beginning of grinding, first use an angle grinder to grind off the small bumps and convex parts on the plated parts; secondly, use fine emery cloth to grind the entire plated surface, and polish it with copper-coated carbon dipped in water until a mirror effect appears; finally, treat it as required Corresponding colors and effects.

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