A kind of metal relief casting method

Abstract

The invention discloses a metal embossment casting method. The metal embossment casting method comprises the following steps: constructing a shading; mixing 4.5-6 parts of perlite powder, 4.2-4.7 parts of fly ash, 4 parts of alkaline silica sol and 1 part of fireproof adhesive, and duplicating an engraving mold on the shading; drying for forming the engraving mold; engraving a mirror pattern of a pattern to be cast on the engraving mold by using an engraving machine; cutting the engraving mold according to required embossment size and shape to obtain a casting bottom mold; building a sand mold by using a hollow mold; replacing the hollow mold by the casting bottom mold, and filling the bottom mold with different embossment partial metal decorative patterns (to obtain an effect that one plate body is made of different metal materials); casting metal liquid to obtain a metal embossment; and mixing 4.5-6 parts of perlite powder, 4.2-4.7 parts of fly ash, 4 parts of alkaline silica sol and 1 part of a fireproof adhesive, and duplicating a casting bottom mold on the metal embossment. According to the metal embossment casting method, the casting roughness caused by a sand sticking phenomenon is reduced, and the casting quality is improved under the condition that the relatively-low hardware cost is kept; and meanwhile, shading construction replaces shading engraving, so that the operation time of the engraving machine is shortened and the machining time is greatly shortened.

Description

technical field [0001] The present invention relates to electrical controls and, in particular, to a metal relief casting method. Background technique [0002] In the prior art, the processing technology of metal embossed logo (including metal layout texture and graphic characters) is generally divided into three types: engraving method, the production process generally takes too long to process, and it is difficult to complete high-relief characters and graphics, The sculpture takes about 1.5 hours per 100 square centimeters; for the sand casting method, a hard bottom mold needs to be made first, and then it is completed through the sand casting process. The disadvantage is that the casting of fine patterns cannot be completed, and sand sticking will occur, and the casting requirements of high-relief patterns cannot be completed, and the surface of the casting is too rough; the disadvantage of the hard metal mold method is that the cost of the metal mold is relatively high,...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of long time-consuming metal relief processing, low quality and high cost in the prior art, the purpose of the present invention is to propose a metal relief casting method, which can simultaneously shorten the processing time, improve the relief quality, and compress hardware costs

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