A coating for automatic wire shell making and its preparation method and adjustment method
An automatic line and coating technology, applied in the direction of coating, manufacturing tools, casting molding equipment, etc., can solve the problems of long and short shell-making cycle, generally only one to two months, long drying time, etc., to achieve the shell-making cycle Short, good application prospects, short drying time
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preparation example Construction
[0029]The method for preparing coating with a coating of a molten casting shell is comprised of the following steps.
[0030]Step 1, the acid-dry silica sol, zirconium powder and the penetrant T press 1 kg: (3 ~ 5) kg: (4.5 ~ 6) mL, wherein the osmotic T is a wetting agent, and the acidity is dry. Silica sol is customized by manufacturers, SiO2The mass fraction is 24% ~ 27%, the pH of the acid-dry silica sol is 4 ~ 5, SiO2The particle size is 8 ~ 20 nm; zirconium powder is also customized by the manufacturer, where Zro2The mass fraction is 64% ~ 65.5%, Al2O3Quality score ≤1.0%, Fe2O3Quality score ≤1.0%, TIO2The mass fraction is ≤0.3%, the mass fraction of particle size of 75 μm is 0.5% to 1.2%, greater than 53 μm is 5.0% to 10.0%, greater than 45 μm particle size of 12.0% to 17.0%;
[0031]Step 2, in turn, insert the weighing acid-drying silica sol and penetrant T into the bump barrel, stirring at a rate of 1000 to 1500RAD / min using a vertical mixer at a rate of 2 to 5 min; since the pe...
Embodiment 1
[0045]Configuration, adjustment, and continuation of a transition layer coating of the leaf transition layer
[0046]The configuration method includes the following steps,
[0047]Step 1, the acid-dry silicon sol, zirconium powder and penetrant T press 1 kg: 5kg: 6ml, there is a solution of acidic and dry silica sol.2The mass fraction is 24% ~ 27%, the pH of the acid-dry silica sol is 4 ~ 5, SiO2The particle size is 8 ~ 20 nm; ZrO in zirconium powder2The mass fraction is 64% ~ 65.5%, Al2O3Quality score ≤1.0%, Fe2O3Quality score ≤1.0%, TIO2The mass fraction is ≤0.3%, the mass fraction of particle size of 75 μm is 0.5% to 1.2%, greater than 53 μm is 5.0% to 10.0%, greater than 45 μm particle size of 12.0% to 17.0%;
[0048]Step 2, in turn, insert the weighing acid-dry silicon sol and penetrant T into the bump barrel, using the vertical mixer at a rate of 1500RAD / min at a rate of 2min;
[0049]Step 3, add the weighing zirconium powder, at this time at this time at a rate of 1000rad / min, at thi...
Embodiment 2
[0061]Coating, adjustment, and continuation of a coating of a working blade reinforced layer
[0062]The configuration method includes the following steps,
[0063]Step 1, the proportion of the acid-dry silicon sol, zirconium powder and penetrant T is preferably known to 5.5 mL, in which SiO is known in which2The mass fraction is 24% ~ 27%, the pH of the acid-dry silica sol is 4 ~ 5, SiO2The particle size is 8 ~ 20 nm; ZrO in zirconium powder2The mass fraction is 64% ~ 65.5%, Al2O3Quality score ≤1.0%, Fe2O3Quality score ≤1.0%, TIO2The mass fraction is ≤0.3%, the mass fraction of particle size of 75 μm is 0.5% to 1.2%, greater than 53 μm is 5.0% to 10.0%, greater than 45 μm particle size of 12.0% to 17.0%;
[0064]Step 2, in turn, insert the weighing acid, dry silica sol and penetrant T, in the bump barrel, and stir it to stir at 1250 ARAD / min using a vertical mixer;
[0065]Step 3, add a good zirconium powder, stirred at a rate of 5 min at a rate of low speed 1250RAD / min, at this time, a un...
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