Casting can form complex shape and form a beautiful shapes through the NC machining of mold cavity. Casting processing quantity is little, sometimes even without cutting. Casting can also design different wall thickness and structure to satisfy the strength and function of lighting. Certainly we can do the surface treatment according to different installation environment. There is strong corrosion resistance in outdoor environment. Besides using different casting process can not only suitable for small production, but also used for large production. So it can satisfy the demand of various lighting sales. All kinds of casting are widely used in lighting manufacturing industry especially for the manufacture of outdoor lamps.
The most widely used in the lighting is pressure casting, the second is sand casting, metal casting and little investment castings according to classification of the casting method.
Street lamp, advertising lamp, square lamp, part of outdoor wall lamp shell and
lamp cover are mostly use aluminum die casting. Garden lamp shell, connectors of wall lamps, most of them are made by aluminum casting and sand casting.
The surface of outdoor lamp is made by aluminum die casting. So we usually use spray and paint surface treatment. The surface of copper and stainless steel castings mainly use polishing or vibration light. Sometimes we can also use paint or spray treatment in order to keep consistent with other parts.
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