A casting dewaxing device and its dewaxing process

Abstract

The invention relates to the field of metal processing, in particular to a casting dewaxing device and a dewaxing process thereof, comprising a dewaxing kettle, wherein the dewaxing kettle comprises a steam chamber located above and a water storage tank located below, between which passes A collection pipe is connected to each other, a set table for placing the wax mold of the casting is arranged inside the steam chamber, a water lead pipe is extended outward from the bottom of the reservoir, and the water lead pipe is connected to a steam boiler outside the dewaxing kettle. The output port of the boiler is connected with a steam pipe. The steam pipe passes through the dewaxing kettle and enters the interior of the steam chamber and is provided with a steam output head at its end. A wax collecting pipe is arranged at the center of the bottom of the reservoir. The pipe extends upwards to the inside of the collection pipe, and the upper end of the wax collection pipe is provided with a wax-inducing end. The invention can dewax the wax mold and greatly improve the recycling rate of the wax liquid.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a casting dewaxing device and a dewaxing process thereof. Background technique [0002] Investment casting is developed on the basis of ancient wax casting. The so-called investment casting process, simply put, is to use fusible materials (such as wax or plastic) to make fusible models (referred to as investment models or models), and apply several layers of special refractory coatings on them. After hardening to form an integral mold shell, the mold is melted from the mold shell with steam or hot water, then the mold shell is placed in a sand box, filled with dry sand molding around it, and finally the mold is placed in a roasting furnace for High-temperature roasting (for example, when a high-strength mold is used, the mold after demolding can be directly fired without molding), after the mold or mold is fired, molten metal is poured into it to obtain a casting. [0003] Durin...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the dewaxing device in the prior art has a low recycling rate of the wax material in the wax mold, and at the same time, the recovered wax material may be doped with impurities, resulting in poor surface quality of the final casting. defect, a casting dewaxing device and dewaxing process thereof are provided

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