Simplified process method of lost wax casting

Abstract

The invention discloses a simplified process method of lost wax casting, which comprises the following steps in sequence: wax tree planting, plaster mold preparation, and lost wax casting; before the wax tree planting step, the following steps are included: (1) directly molding a resin female mold by a rapid molding device, wherein the resin female mold comprises a mold cavity which has the same shape as the product to be prepared by the simplified process method of lost wax casting; (2) injecting a wax mold: melting paraffin and performing heat insulation, filling the resin female mold with the paraffin in a wax injector, cooling, and finishing to obtain a wax mold. The method of the invention omits a plurality of procedures for mold turnover, saves the cost, and prevents the problem that dimensions and styles deviates the initial design due to multiple male mould-female mold conversion; and the resin female mold is directly molded by the rapid molding device, and thus product pattern replacement is very flexible and rapid.

Description

technical field [0001] The invention relates to a process method in the lost wax casting technology, in particular to a simplified process method of the lost wax casting. Background technique [0002] The lost wax casting process is developed from the ancient casting process. In the late Neolithic Age more than 5,000 years ago, ancient Chinese craftsmen widely used the lost-wax casting process in the manufacture of bronzes. According to the plasticity and thermal volatility of beeswax, craftsmen at that time first carved beeswax into a wax mold of the desired shape, then wrapped clay outside the wax mold and reserved a small hole, dried it and baked it to vaporize the wax mold. At the same time, the clay becomes a ceramic shell, and the inner wall of the shell leaves a negative mold of the wax model. At this time, the molten metal is injected into the shell along the small hole, and the shell is broken after cooling to obtain the required metal billet. The basic principle...

AI Technical Summary

Problems solved by technology

Compared with the previous method, the silver plate and silicone mold can be used repeatedly during mass production, but six procedures are added; the mold opening needs manual operation, and the quality of the mold is closely related to the skills of the glue maker, and often fluctuates in quality In addition, during the process of turning over the mold, there will be certain errors and deformations due to multiple male-female conversions in the links of silver plate making, glue film making and wax injection, etc., especially in some small parts. Easy to lose shape, which is not conducive to the processing of subsequent processes

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