High-voltage transformer shell end socket stamping die
A technology of high-voltage transformers and stamping dies, which is applied in the manufacture of inductors/transformers/magnets, forming tools, manufacturing tools, etc., which can solve the problems of high temperature heat dissipation, low breakdown resistance and poor heat resistance of the die head And other problems, to achieve the effect of good pressure resistance and impact resistance, good head formability, and reasonable structural design
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Embodiment 1
[0046] The above stamping die for the head of a high-voltage transformer shell, wherein the preparation method of the heat-insulating coating is as follows:
[0047] (1) Take 21 parts by mass of nano-titanium dioxide, 12 parts of nano-tin oxide, 13 parts of nano-silicon dioxide, 6 parts of nano-zinc-aluminum oxide and 2 parts of nano-molybdenum trioxide in a ball mill, and control the speed at 1450r / min, ball mill for 2 hours, then add 8 parts of polyvinylpyrrolidone dispersant and 6 parts of polyvinylpyrrolidone dispersant in turn, with the power of 560w microwave, control the stirring rate to 410r / min, the temperature is 180 ℃, and react for 3 hours to obtain nanocomposites;
[0048](2) Take 17 parts of E51 bisphenol A epoxy resin and 13 parts of polypropylene by mass parts, add 4 parts of talcum powder, control the stirring rate at 145r / min, and the temperature at 150°C for 3 hours to prepare Obtain modified resin;
[0049] (3) Add 26 parts of nanocomposite materials and...
Embodiment 2
[0051] The above stamping die for the head of a high-voltage transformer shell, wherein the preparation method of the heat-insulating coating is as follows:
[0052] (1) Take 22 parts by mass of nano-titanium dioxide, 14 parts of nano-tin oxide, 11 parts of nano-silicon dioxide, 5 parts of nano-zinc-aluminum oxide and 3 parts of nano-molybdenum trioxide in a ball mill, and control the speed at 1300r / min, ball mill for 1 hour, then add 9 parts of polyvinylpyrrolidone dispersant and 8 parts of polyvinylpyrrolidone dispersant in turn, with the power of 560w microwave, control the stirring speed to 350r / min, and the temperature is 210℃, and react for 3 hours to obtain nanocomposites;
[0053] (2) Take 15 parts of E51 bisphenol A epoxy resin and 10 parts of polypropylene by mass parts, add 3 parts of talcum powder, control the stirring rate at 135r / min, and the temperature at 160°C for 3 hours to prepare Obtain modified resin;
[0054] (3) Add 32 parts of nanocomposite materials...
Embodiment 3
[0056] The above stamping die for the head of a high-voltage transformer shell, wherein the preparation method of the heat-insulating coating is as follows:
[0057] (1) Take 12 parts by mass of nano-titanium dioxide, 14 parts of nano-tin oxide, 8 parts of nano-silicon dioxide, 7 parts of nano-zinc-aluminum oxide and 3 parts of nano-molybdenum trioxide in a ball mill, and control the speed at 1500r / min, ball mill for 1 hour, then add 8 parts of polyvinylpyrrolidone dispersant and 10 parts of polyvinylpyrrolidone dispersant in turn, with the power of 560w microwave, control the stirring rate to 350r / min, the temperature is 200 ℃, and react for 2 hours to obtain nanocomposites;
[0058] (2) Take 20 parts of E51 bisphenol A epoxy resin and 13 parts of polypropylene by mass parts, add 5 parts of talcum powder, control the stirring rate at 160r / min, and the temperature at 150°C for 3 hours to prepare Obtain modified resin;
[0059] (3) Add 33 parts of nanocomposite materials and...
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