Ceramic mold vacuum degreasing method for gel-casting turbine blades
A technology of ceramic casting and gel injection molding, applied in the field of rapid casting, can solve the problems of large gas generation, core deviation, impact damage of the green body, etc., so as to slow down the burn-off process, reduce the instantaneous gas generation, reduce the Effect of small thermal stress
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Embodiment 1
[0034] (1) Use 3D modeling software (UG, ProE, etc.) to design the blade resin mold, import the CAD model data into the Magics layering software for layering processing, and carry out the hollowing out process inside the entity, and import the model layering data into the light-curing rapid prototyping equipment Make a hollow turbine blade resin mold, and the molding resin is SPRS8981 photosensitive resin.
[0035] (2) Prepare ceramic slurry based on gel injection molding process.
[0036] 2) Weigh 60% large particle size aluminum oxide alumina, 39% aluminum oxide, and 1% magnesium oxide according to the mass ratio, and stir and mix them evenly in a container to obtain powder; wherein, the particle size of large particle size alumina The particle size of small-particle-diameter alumina is 2-10 μm.
[0037] 2) Dissolve the organic monomer acrylamide AM and the crosslinking agent N,N'-methylenebisacrylamide MBAM in deionized water at a mass ratio of 20:1, then add a dispersant ...
Embodiment 2
[0052] (1) Use three-dimensional modeling software, such as UG, ProE, to design the blade resin mold, import the CAD model data into the Magics layering software for layering processing, and carry out the internal hollowing out of the blade resin mold after layering processing, and layer the model The data is imported into the photocuring rapid prototyping equipment to make the hollow turbine blade resin mold, and the molding resin is SPRS8981 photosensitive resin.
[0053] (2) Prepare ceramic slurry based on gel injection molding process:
[0054] 2) Weigh 65% large particle size aluminum oxide alumina, 30% aluminum oxide, and 5% magnesium oxide according to the mass ratio, and stir and mix them evenly in a container to obtain powder; wherein, the particle size of large particle size alumina The particle size of small-particle-diameter alumina is 2-10 μm.
[0055] 2) Dissolve the organic monomer methacrylamide and the crosslinking agent methyl acryl acrylate into deionized w...
Embodiment 3
[0065] (1) Use three-dimensional modeling software, such as UG, ProE, to design the blade resin mold, import the CAD model data into the Magics layering software for layering processing, and carry out the internal hollowing out of the blade resin mold after layering processing, and layer the model The data is imported into the photocuring rapid prototyping equipment to make the hollow turbine blade resin mold, and the molding resin is SPRS8981 photosensitive resin.
[0066] (2) Prepare ceramic slurry based on gel injection molding process:
[0067] 2) Weigh 70% large particle size aluminum oxide alumina, 26% aluminum oxide, and 4% magnesium oxide by mass percentage, and stir and mix them evenly in a container to obtain powder; wherein, the particle size of large particle size alumina The particle size of small-particle-diameter alumina is 2-10 μm.
[0068] 2) Dissolve the organic monomer methylolacrylamide and the crosslinking agent N,N'-methylenebisacrylamide MBAM in deioniz...
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Abstract
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