Method of improving high-temperature strength of integral alumina-based ceramic mold through chemical vapor infiltration
A chemical vapor infiltration, high temperature strength technology, applied in the field of rapid casting, to achieve the effect of high softening point under load, small high temperature creep value and high hardness
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[0031] A method for improving the high-temperature strength of a monolithic alumina-based ceramic mold, comprising the following steps:
[0032] 1) Manufacture of resin mold
[0033] The present invention utilizes light-curing rapid prototyping technology to manufacture resin molds. First, commercial three-dimensional software is used to design a resin mold CAD model, and the resin mold CAD is converted into an STL file, which is imported into a rapid prototyping system to generate a two-dimensional slice with a layered thickness of 0.1 mm. File, under the control of the slice file, quickly and automatically manufacture the light-cured prototype of the resin mold. After the SL resin mold is manufactured, use alcohol to remove excess liquid resin on the surface and dry it. The manufactured resin mold has high precision, high rigidity and good surface quality, and can be used as a molding mold for ceramic ligands.
[0034] 2) Prepare ceramic slurry
[0035] First, dissolve the o...
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