Light curing 3D printing preparing method for complex double-wall silicon-based ceramic core
A ceramic core and 3D printing technology, which is applied in the field of precision casting, can solve problems such as complex procedures and high costs, and achieve the effects of simplifying the process flow, reducing cost loss, and reducing process steps
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[0064] In this embodiment, the preparation method of the single crystal double-wall hollow turbine blade based on the light curing technology is as follows:
[0065] (1) Weigh 100g (v=46mL, ρ=2g / cm 3 ); monomer: 1,6-hexanediol diacrylate 20g (18mL), hexahydrophthalic diglycidyl ester 10g (11mL); dispersant: dipentaerythritol hexaacrylate (DPHA) 4g (3.5mL) ), and mixed with 0.8g sodium polyacrylate, 0.2g ammonium polyacrylate, 0.2g oleic acid; photoinitiator: benzoin dimethyl ether 0.8g, 2,4,6-trimethylbenzoyl diphenyl phosphine oxide 0.12 g, diarylsulfonium salt is 0.12g, triarylsulfonium salt is 0.12g; light absorber: 2,4-dihydroxybenzophenone 0.21g, 2-(2ˊ-hydroxy-5ˊ-methylbenzene Base) benzotriazole 0.15g; mineralizer: alumina 8g, zirconia 6g, the particle size of alumina is 20nm-40nm, and the particle size of zirconia is 20-40nm.
[0066] (2) Mix the spherical silicon-based ceramic powder mixed with the micron-level and nano-level with the mineralizer, and pass ...
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