High-performance investment casting mould shell
An investment casting, high-performance technology, used in casting molding equipment, molds, mold components, etc., can solve the problems of harsh environmental conditions, low room temperature strength of the mold, increased surface roughness, etc., to improve high temperature strength. and high temperature deformation resistance, good thermal shock stability, and the effect of reducing residual strength
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Embodiment 1
[0017] A high-performance investment casting mold shell, comprising the following steps:
[0018] (1) Evenly mix 500-mesh quartz sand, rare earth, ethyl silicate-rosin compound agent, and activated bentonite together in a mass ratio of 100:0.15:6:10, add them to a high-speed mixer, and stir to obtain a shell For the inner layer slurry, 200 mesh quartz sand, ethyl silicate-rosin compound agent, and activated bentonite are evenly mixed together in a mass ratio of 100:8:12, added to a high-speed mixer, and stirred to obtain the outer layer of the shell slurry;
[0019] (2) Evenly smear the slurry in the mold shell prepared in step (1) on the surface of the wax mold, after drying, evenly smear the slurry on the outer layer of the mold shell, and then dry it to obtain a coated wax mold;
[0020] (3) Bind the surface of the coated wax mold in step (2) evenly with iron wire, fix it, and then let it stand for 2 hours;
[0021] (4) Put the coated wax mold processed in step (3) into h...
Embodiment 2
[0028] A high-performance investment casting mold shell, comprising the following steps:
[0029] (1) Mix 500-mesh quartz sand, rare earth, ethyl silicate-rosin compound agent, and activated bentonite together in a mass ratio of 100: 0.18: 8: 15, add them to a high-speed mixer, and stir to obtain a shell For the inner layer slurry, mix 200 mesh quartz sand, ethyl silicate-rosin composite agent, and activated bentonite in a mass ratio of 100:10:14, add them to a high-speed mixer, and stir to obtain the outer layer of the shell slurry;
[0030] (2) Evenly smear the slurry in the mold shell prepared in step (1) on the surface of the wax mold, after drying, evenly smear the slurry on the outer layer of the mold shell, and then dry it to obtain a coated wax mold;
[0031] (3) Bind the surface of the coated wax mold in step (2) evenly with iron wire, fix it, and then let it stand for 2 hours;
[0032] (4) Put the coated wax mold processed in step (3) into high temperature for wax ...
Embodiment 3
[0039] A high-performance investment casting mold shell, comprising the following steps:
[0040] (1) Evenly mix 500-mesh quartz sand, rare earth, ethyl silicate-rosin compound agent, and activated bentonite together in a mass ratio of 100:0.16:7:12, add them to a high-speed mixer, and stir to obtain a shell For the inner layer slurry, 200 mesh quartz sand, ethyl silicate-rosin compound agent, and activated bentonite are uniformly mixed together in a mass ratio of 100:9:13, added to a high-speed mixer, and stirred to obtain the outer layer of the shell slurry;
[0041] (2) Evenly smear the slurry in the mold shell prepared in step (1) on the surface of the wax mold, after drying, evenly smear the slurry on the outer layer of the mold shell, and then dry it to obtain a coated wax mold;
[0042] (3) Bind the surface of the coated wax mold in step (2) evenly with iron wire, fix it, and then let it stand for 2 hours;
[0043] (4) Put the coated wax mold processed in step (3) int...
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