Hot forming process of resin-ceramic bond diamond-impregnated wheel
A vitrified bond and diamond technology, applied in the direction of metal processing equipment, abrasives, grinding devices, etc., can solve the problems that the heat resistance, mechanical properties and grinding performance of diamond grinding wheels cannot meet the requirements of use, and achieve excellent wear resistance , wide application range and long service life
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[0024] The preparation method of the above-mentioned ceramic bond is as follows: (a) Weigh the following raw materials in parts by weight: 40 parts of kaolin tailings, 20 parts of periclase, 15 parts of leucite, 10 parts of kalnite, and 5 parts of colemanite , 8 parts of chromium carbide, 6 parts of zirconium diboride, and 4 parts of silicon nitride; (b) mix kaolin tailings, periclase, leucite, kalsene and colemanite, crush them, and pass through a 100-mesh sieve , and then heated up to 940°C at a rate of 8°C / min, calcined for 40min, then raised to 1260°C at a rate of 5°C / min, calcined for 2h, and then water-quenched with circulating normal temperature water; (c) water-quenched to obtain After the material is dried, it is evenly mixed with chromium carbide, zirconium diboride, and silicon nitride, 5000r / min high-speed ball milling for 2 hours, and passed through a 150-mesh sieve to obtain the required vitrified bond;
[0025] (2) According to the mass ratio of 1:2, put the dia...
Embodiment 2
[0030] A thermoforming process of a resin vitrified bond diamond grinding wheel, comprising the following steps:
[0031] (1) According to the mass ratio of 1:1.5, put the resin bond and the vitrified bond into the mixer at a speed of 800r / min and mix for 12 hours, and then the alternating frequency of the dual-frequency ultrasonic is 40KHz / 90KHz, and the alternating working time of the dual-frequency ultrasonic For 3s, under the condition of ultrasonic power of 250W, the dual-frequency ultrasonic wave was alternately oscillated for 1.5h, and then mixed at a speed of 1200r / min for 8h to obtain a composite binder;
[0032] The above-mentioned resin binder is formed by mixing polyimide resin and phenolic resin according to a mass ratio of 1:2.5;
[0033] The preparation method of the above vitrified bond is as follows: (a) Weigh the following raw materials in parts by weight: 45 parts of kaolin tailings, 25 parts of periclase, 20 parts of leucite, 15 parts of kalnite, and 8 part...
Embodiment 3
[0039] A thermoforming process of a resin vitrified bond diamond grinding wheel, comprising the following steps:
[0040] (1) According to the mass ratio of 1:2, put the resin bond and the vitrified bond into the mixer at a speed of 1000r / min and mix for 10 hours, and then the alternating frequency of the dual-frequency ultrasonic is 50KHz / 100KHz, and the alternating working time of the dual-frequency ultrasonic for 5s, and the ultrasonic power is 300W, and the dual-frequency ultrasonic wave is alternately oscillated for 1h, and then mixed at a speed of 1500r / min for 5h to obtain a composite binder;
[0041] The above-mentioned resin binder is formed by mixing polyimide resin and phenolic resin according to a mass ratio of 1:3;
[0042] The preparation method of the above-mentioned ceramic bond is as follows: (a) Weigh the following raw materials in parts by weight: 50 parts of kaolin tailings, 30 parts of periclase, 25 parts of leucite, 20 parts of kalnite, and 10 parts of co...
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