Manufacturing method for medium-voltage high-energy zinc oxide resistor disc
A technology of zinc oxide resistance sheet and manufacturing method, which is applied in the direction of resistance manufacturing, varistor, varistor core, etc., can solve the problems of high flow, unable to meet medium voltage, low residual voltage ratio, etc., and achieve reduction The effect of residual pressure ratio, reduction of product thickness and improvement of product performance
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Embodiment 1
[0019] A method for manufacturing a medium-voltage high-energy zinc oxide resistor, comprising the following steps:
[0020] (1) Raw material ratio: in molar percentage, additives: 0.5% antimony trioxide, 0.1% titanium dioxide, 0.5% bismuth trioxide, 0.8% cobalt trioxide, 0.6% manganese carbonate, 0.001% silver nitrate, 0.3% tin dioxide, 0.002% strontium carbonate, 0.001% boric acid, and the balance is mainly zinc oxide;
[0021] (2) Ball milling: Weigh the additives according to the ratio of step (1) and add them to the ball mill, add pure water according to the ratio of additives: pure water = 1:1, and stir the ball mill for 3 hours;
[0022] (3) Mixing of additives and zinc oxide and spray granulation: add ball-milled additives, zinc oxide, binder, and aluminum nitrate into the dispersion mill, and ball mill for 2 hours. The weight ratio of binder to zinc oxide is 1:100 , the weight ratio of aluminum nitrate to additives is 1:300; the temperature of the slurry is controlle...
Embodiment 2
[0029] A method for manufacturing a medium-voltage high-energy zinc oxide resistor, comprising the following steps:
[0030] (1) Raw material ratio: in molar percentage, additives: 1.0% antimony trioxide, 0.4% titanium dioxide, 0.8% bismuth trioxide, 1.5% cobalt trioxide, 1.0% manganese carbonate, 0.002% silver nitrate, di 0.5% tin oxide, 0.004% strontium carbonate, 0.003% boric acid, and the balance is mainly zinc oxide;
[0031] (2) Ball milling: Weigh the additives according to the ratio of step (1) and add them to the ball mill, add pure water according to the ratio of additives: pure water = 1:1, and stir the ball mill for 5 hours;
[0032] (3) Mixing of additives and zinc oxide and spray granulation: add ball-milled additives, zinc oxide, binder, and aluminum nitrate into the dispersion mill, and ball mill for 2 hours. The weight ratio of binder to zinc oxide is 1:100 , the weight ratio of aluminum nitrate to additives is 1:300; the slurry temperature is controlled at 6...
Embodiment 3
[0039] A method for manufacturing a medium-voltage high-energy zinc oxide resistor, comprising the following steps:
[0040] (1) Raw material ratio: by mole percentage, additives: 1.2% antimony trioxide, 0.6% titanium dioxide, 1.3% bismuth trioxide, 2.1% cobalt trioxide, 1.3% manganese carbonate, 0.003% silver nitrate, 0.6% tin dioxide, 0.005% strontium carbonate, 0.006% boric acid, and the balance is mainly zinc oxide;
[0041] (2) Ball milling: Weigh the additives according to the ratio of step (1) and add them to the ball mill, add pure water according to the ratio of additives: pure water = 1:1, and stir the ball mill for 5 hours;
[0042] (3) Mixing of additives and zinc oxide and spray granulation: add ball-milled additives, zinc oxide, binder, and aluminum nitrate into the dispersion mill, and ball mill for 4 hours. The weight ratio of binder to zinc oxide is 1:100 , the weight ratio of aluminum nitrate to additives is 1:300; the temperature of the slurry is controlled...
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