Method for preparing ceramic hand die
A technology of hand molding and ceramics, applied in the direction of coating, etc., can solve the problems of complex process and high cost, and achieve the effect of simple process, low price and easy realization
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Embodiment 1
[0045]1) Formula: 40 parts of coal gangue, 20 parts of feldspar, 20 parts of calcined high-alumina bauxite, 8 parts of jiexiu soil, 10 parts of Zimujie soil, 2.5 parts of Suzhou soil, 5 parts of Fangzi soil, and 1 part of cooked talc .
[0046] 2) Preparation process:
[0047] a. Crush the coal gangue to 8-40 meshes, mix it with other raw materials according to the formula, add water ball mill for 18-20 hours, the amount of water added is generally 50% of the total weight of raw materials, add soda ash and water glass to adjust the pH of the mud to 8-10 ;
[0048] b. Pass through a 150-200 mesh sieve after ball milling, put the mud into a high-level vacuum tank after removing iron, add water to adjust the specific gravity of the mud to 1.50-1.65, and vacuumize for 10-25 minutes at a vacuum degree of 0.08MPa-0.09MPa;
[0049] c. Remove iron, inject grout, hold the grout for 30-40 minutes and then empty the grout;
[0050] d. Adhesive bottom support, mold release, billet trim...
Embodiment 2
[0055] 1) Formula: 10 parts of coal gangue, 10 parts of feldspar, 10 parts of calcined high-alumina bauxite, 5 parts of jiexiu soil, 5 parts of Zimujie soil, 1 part of Suzhou soil, 8 parts of Fangzi soil, 3 parts of cooked talc .
[0056] The preparation method is basically the same as that in Example 1, except that after the drying process, the hemping process is carried out first, and then the glazing process is carried out. The hemping process specifically includes the following steps: use a spray gun to spray a particle size of 0.5 to 0.8mm quartz sand, glass balls, alumina balls or zirconia balls.
Embodiment 3
[0058] 1) Formula: 50 parts of coal gangue, 22 parts of feldspar, 30 parts of calcined high-alumina bauxite, 10 parts of calcined soil, 15 parts of Zimujie soil, 3 parts of Suzhou soil, 6 parts of Fangzi soil, 2 parts of cooked talc . The preparation method is basically the same as in Example 1.
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