Ceramic mold casting PS (polystyrene) integral mold based on selective laser sintering and quick casting method of integral mold

Abstract

The invention relates to a ceramic mold casting PS (polystyrene) integral mold based on selective laser sintering and a quick casting method of the integral mold, and belongs to the technical field ofprecision casting. The integral mold comprises a target spare part PS model, a molten metal pouring system PS model, a mold housing PS model, a ceramic slurry filling system PS model and a ceramic slurry filling cavity, wherein the molten metal pouring system PS model and the target spare part PS model are connected and fixed inside the mold housing PS model; and the ceramic slurry filling cavityis formed among outer walls of the molten metal pouring system PS model and the target spare part PS model and an inner wall of the mold housing PS model. The invention further provides the quick casting method of the integral mold. According to the invention, links of mold processing and manufacturing, and mold assembly in the traditional ceramic mold precision casting process are removed; a spare part manufacturing period is shortened; the product manufacturing cost is saved; the product development efficiency is improved; and a casting is high in dimensional precision and good in surface quality, and meets use requirements.

Description

technical field [0001] The invention relates to a mold and a method thereof, in particular to a ceramic type casting PS integral mold based on laser selective sintering and a rapid casting method thereof, belonging to the technical field of precision casting. Background technique [0002] Ceramic precision casting is a new process developed on the basis of sand casting and investment casting. The ceramic type uses refractory materials with relatively pure texture and high thermal stability as modeling materials; ethyl silicate hydrolyzate is used as a binder, and under the action of a catalyst, it undergoes processes such as grouting, cementation, mold removal, and roasting. and made. Ceramic type precision casting has high dimensional accuracy and surface finish. The dimensional accuracy of its castings is as high as 3-5 grades, and the surface roughness can reach Ra1.25μm-Ra10μm. At present, ceramic precision casting has been widely used in the production of plastic mold...

AI Technical Summary

Problems solved by technology

Although the patented process is simple, the manufacturing cycle is short, the cost is low, and the casting precision is high, it does not use laser selective sintering, and is not suitable for single-piece casting of parts with complex shapes, so it still has the above defects

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