A method for grinding zinc oxide varistor
A varistor and zinc oxide technology, which is applied in the manufacture of resistors and resistors, and machine tools suitable for grinding the edge of workpieces, etc., can solve the problems of deterioration of electrical performance and electrical performance of varistors, poor grinding efficiency, and low pass rate Advanced problems, to achieve the effect of overcoming the deterioration of electrical properties and electrical properties, high grinding efficiency, and simple process
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Embodiment 1
[0012] 1. Put the sintered zinc oxide varistor tiles with a diameter of 5 mm and a model number of 5D271K into a cylindrical drum with an inner diameter of 40 cm and a length of 45 cm, where the loose volume of the tiles accounts for 85% of the volume of the drum;
[0013] 2. Add tap water to the cylindrical drum to submerge the zinc oxide varistor tiles;
[0014] 3. Seal the drum tightly and put it in the drum mill for drum grinding for 3 minutes;
[0015] 4. Pass the ground tiles through a 10-mesh sieve, rinse the tiles completely with tap water, and recycle the sieved precipitated powder;
[0016] 5. Put the polished and rinsed tiles into a tray, and place them in an oven at 100°C until they are completely dried to obtain a product with a smooth surface and uniform thickness. The pass rate of the product and the electrical performance and electrical performance of the finished product obtained after surface metallization, welding and encapsulation of the product are shown ...
Embodiment 2
[0018] 1. Weigh 200g of granulated zinc oxide varistor powder, put it into a sintering pot, then put the sintering pot into a resistance furnace, keep it at 550°C for 4 hours, and then keep it at 1050°C for 6 hours After sintering, the temperature is lowered with the furnace to obtain zinc oxide varistor porcelain particles, which are used as pads for standby use.
[0019] 2. Put the sintered zinc oxide varistor tiles with a diameter of 10mm and model 10D471K into a cylindrical drum with an inner diameter of 40cm and a length of 45cm, wherein the loose volume of the tiles accounts for 90% of the volume of the drum;
[0020] 3. Add tap water to the cylindrical drum to submerge the zinc oxide varistor tiles;
[0021] 4. Add 100g of the zinc oxide varistor gasket in step 1 to the cylindrical drum;
[0022] 5. Seal the drum tightly and put it in the drum mill for drum grinding for 10 minutes;
[0023] 6. Pass the ground tiles through a 10-mesh sieve, rinse the tiles completely ...
Embodiment 3
[0026] 1. Weigh 400g of zinc oxide varistor granulated powder, put it into a sintering pot, then put the sintering pot into a resistance furnace, keep it at 600°C for 3 hours, and then keep it at 1100°C for 4 hours After sintering, the temperature is lowered with the furnace to obtain zinc oxide varistor porcelain particles, which are used as pads for standby use.
[0027] 2. Put the sintered zinc oxide varistor tiles with a diameter of 14mm and model 14D681K into a cylindrical drum with an inner diameter of 40cm and a length of 45cm, wherein the loose volume of the tiles accounts for 93% of the volume of the drum;
[0028] 3. Add tap water to the cylindrical drum to submerge the zinc oxide varistor tiles;
[0029] 4. Add 200g of the zinc oxide varistor pad in step 1 to the cylindrical drum;
[0030] 5. Seal the drum tightly and put it in the roller mill for drum grinding for 5 minutes;
[0031] 6. Pass the ground tiles through a 10-mesh sieve, rinse the tiles completely wi...
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