Multifunctional coating for casting and preparation method thereof
A multi-functional coating technology, applied in casting molding equipment, coatings, casting molds, etc., can solve the problems of no coating drying characteristics, adhesion and wear resistance, gas permeability exploration, unavoidable single use, and less research on coatings, etc. , to achieve the effect of stable process, fast drying speed and high air permeability
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Embodiment 1
[0035] A multifunctional coating for casting, comprising at least the following raw materials by weight: 51 parts of quartz sand powder, 5.5 parts of flake graphite powder, 4 parts of bentonite, 3 parts of zircon powder, 1 part of polystyrene, and 1 part of bauxite , 4 parts of calcium fluoride, 11 parts of plaster of paris, 2 parts of artemisia wax, 3 parts of trehalose and 6 parts of zinc oxide whiskers.
[0036] Among them, the particle size of the quartz sand powder is 150 mesh.
[0037] The preparation method of above-mentioned casting multifunctional coating, comprises the following steps:
[0038] a. Preparation of polystyrene melt: Take polystyrene according to the weight ratio, add water according to the ratio of material to liquid 1:3.5, heat at 110°C to melt the polystyrene, and then stir evenly to obtain a polystyrene melt ; The polystyrene melt is continuously kept warm at 110° C. to maintain a molten state;
[0039] b. Firing treatment: Take flake graphite powd...
Embodiment 2
[0046] A multifunctional coating for casting, comprising at least the following raw materials in parts by weight: 72 parts of quartz sand powder, 14.5 parts of flake graphite powder, 14 parts of bentonite, 15 parts of zircon powder, 11 parts of polystyrene, and 9 parts of bauxite , 15 parts of calcium fluoride, 25 parts of plaster powder, 7 parts of artemisia wax, 7 parts of trehalose and 20 parts of zinc oxide whiskers.
[0047] Among them, the particle size of the quartz sand powder is 250 mesh.
[0048] The preparation method of above-mentioned casting multifunctional coating, comprises the following steps:
[0049] a. Preparation of polystyrene melt: Take polystyrene according to the weight ratio, add water according to the material-to-liquid ratio of 1:5.5, heat at 130°C to melt the polystyrene, and then stir evenly to obtain a polystyrene melt ; The polystyrene melt is continuously kept warm at 130°C to maintain a molten state;
[0050] b. Firing treatment: Take flake ...
Embodiment 3
[0057] A multifunctional coating for casting, comprising at least the following raw materials in parts by weight: 60 parts of quartz sand powder, 8 parts of flake graphite powder, 8 parts of bentonite, 3-15 parts of zircon powder, 1-11 parts of polystyrene, aluminum 3 parts of bauxite, 5 parts of calcium fluoride, 14.5 parts of plaster of paris, 3 parts of artemisia wax, 4 parts of trehalose and 9.5 parts of zinc oxide whiskers.
[0058] Among them, the particle size of the quartz sand powder is 170 mesh.
[0059] The preparation method of above-mentioned casting multifunctional coating, comprises the following steps:
[0060] a. Preparation of polystyrene melt: Take polystyrene according to the weight ratio, add water according to the ratio of material to liquid 1:4, heat at 115°C to melt the polystyrene, and then stir evenly to obtain a polystyrene melt ; The polystyrene melt is continuously kept warm at 115° C. to maintain a molten state;
[0061] b. Firing treatment: tak...
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