Preparation method of magnetic field auxiliary forming grinding stone
A shaped grinding stone, magnetic field-assisted technology, applied in grinding/polishing equipment, grinding devices, manufacturing tools, etc., to achieve good surface quality, high material removal rate, and uniform particle distribution
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Embodiment 1
[0022] A method for preparing a magnetic field-assisted shaped grinding stone, comprising the following steps:
[0023] The first, taking by volume is the 120 order hydroxyl iron powder of 18.8%, the 120 order carborundum of 31.2% and the epoxy resin adhesive of 50% by volume percentage;
[0024] Second, mix the hydroxyl iron powder and corundum evenly, and then stir evenly with the epoxy resin binder until the hydroxyl iron powder and corundum are completely wet, and inject the well-stirred mixture into a plastic cylinder with a diameter of 10mm. In the mold, close the injection port after injection, and apply mechanical vibration with a frequency of 10Hz and an amplitude of 5mm on the outside of the mold;
[0025] The 3rd, under the situation of keeping vibrating and stirring, utilize electromagnetic field outside the mould, apply magnetic field with the speed of 0.667mT / s to 80mT until 80mT and keep constant;
[0026] Fourth, after the external magnetic field is constant f...
Embodiment 2
[0029] A method for preparing a magnetic field-assisted shaped grinding stone, comprising the following steps:
[0030] The first, taking volume percentage is 120 order hydroxyl iron powders of 12.5%, volume percentage is 120 purpose corundum of 37.5% and volume percentage is the epoxy resin adhesive of 50%;
[0031] Second, stir the hydroxyl iron powder and corundum mixture evenly, and then stir evenly with the epoxy resin binder until the hydroxyl iron powder and corundum are completely wet, and inject the evenly stirred mixture into a plastic cylinder with a diameter of 10mm. In the mold, close the injection port after injection, and apply ultrasonic vibration with a frequency of 20KHz and an output power of 50w to the outside of the mold;
[0032] The 3rd, under the situation of keeping vibrating and stirring, utilize electromagnetic field outside the mould, apply magnetic field with the speed of 0.667mT / s to 80mT until 80mT and keep constant;
[0033] Fourth, stop the ul...
Embodiment 3
[0036] A method for preparing a magnetic field-assisted shaped grinding stone, comprising the following steps:
[0037] The first, take the 120 mesh reduced iron powder of 21.4% by volume, the 120 mesh diamond of 35.7% by volume and the epoxy resin binder of 42.9% by volume;
[0038] Second, stir the reduced iron powder and diamond mixture evenly, and then stir evenly with the epoxy resin binder until the reduced iron powder and diamond are completely wetted, and inject the uniformly stirred mixture into a plastic cylinder with a diameter of 10mm. In the mold, close the injection port after injection, and apply mechanical vibration with a frequency of 100Hz and an amplitude of 2mm on the outside of the mold;
[0039] The 3rd, under the situation of keeping mechanical vibration, utilize the electromagnetic field outside the mould, apply the magnetic field at the speed of 1.667mT / s to the compound formed by this mixing for 2 minutes until 200mT and keep constant;
[0040] Fourth,...
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Abstract
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