Preparation method of reusable investment casting shell, shell and casting process
A technology of investment casting and investment molding, which is applied in casting molding equipment, manufacturing tools, casting molds, etc., can solve the problems of mold shell cracks, reduce the high-temperature strength of the mold shell, and pouring sticky molds, etc., and achieve high temperature expansion coefficient and fire resistance The effect of high strength and simplified cleaning procedures
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[0042] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below.
[0043] Conventional investment casting shells are difficult to reuse as shell materials, resulting in huge waste and increased production costs. For this reason, the present invention provides a kind of preparation method of reusable investment casting shell, see figure 1 , which includes the following steps:
[0044] S1: Provide investment pattern, bottom plate, top plate, rigid cylinder and refractory slurry;
[0045] The investment material can be wax-based molding material, rosin-based molding material, resin-based molding material or hybrid molding material, but not limited thereto; the investment model can be prepared by hot pressing method, 3D printing method, but not limited thereto. Preferably, in the present invention, resin-based molding material is selected as the investment mold material, whi...
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