Diamond resin grinding tool and preparation method thereof
A diamond and resin technology, which is applied in the field of diamond resin abrasive tools and its preparation, can solve the problems of high moisture content, need for post-curing, difficult demoulding, etc., and achieve the effect of less internal defects, high yield, and not easy to crack
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[0032] The present invention also relates to one of the preparation method of above-mentioned a kind of diamond resin abrasive tool, described method step is as follows:
[0033] Step 1, mixing solid phenolic resin powder and filler at high speed to form a powdery mixture;
[0034] Step 2, putting the powdery mixture into a heated open double-roll plastic refining machine for plastic refining to form a sheet;
[0035] Step 3, pulverizing the sheet and passing through a 120-mesh sieve to form sheet powder;
[0036] Step 4. After adding diamonds with a particle size of more than 10 microns to the sheet powder, put it into a ball mill and grind for 15 to 24 hours;
[0037] Step 5. Finally, put it into the mold and mold it for molding. After demoulding, it will be the finished diamond resin abrasive tool.
[0038] In one of the above-mentioned methods, the mixing speed in step one is 800 rpm, and the mixing time is 5 to 10 minutes; The temperature is 120°C~140°C, and the thickn...
Embodiment 1
[0047] Step 1, put 300g of solid phenolic resin powder, 400g of copper powder, 70g of zinc oxide, 38g of graphite, and 36g of cryolite into a mixer for high-speed mixing at a speed of 800 rpm for 5 minutes to form a powdery mixture;
[0048] Step 2. Then put it into a heated open double-roller plastic refiner for plastic refining. The temperature of the front roller of the open-type double-roller plastic refiner is 100°C, the temperature of the rear roll is 120°C, and the thickness of the rolled sheet is 1mm ;
[0049] Step 3, crushing the sheet, passing through a 120-mesh sieve to form a sheet powder, and continuing to crush the particles exceeding 120 mesh until passing through a 120-mesh sieve;
[0050] Step 4, after adding 120 g of diamonds with a particle size greater than 10 microns to the above sheet powder, put it into a ball mill for grinding;
[0051] Step 5. Finally, put it into the mold for compression molding. The mold temperature is 180±10°C and the pressure is ...
Embodiment 2
[0053] Step 1, 540g of solid phenolic resin powder, 600g of iron powder, 90g of zinc oxide, 50g of graphite, and 50g of cryolite are put into a mixer and mixed at a high speed of 800 rpm for 10 minutes to form a powdery mixture;
[0054] Step 2. Then put it into a heated open double-roller plastic refiner for plastic refining. The temperature of the front roller of the open-type double-roller plastic refiner is 110°C, the temperature of the rear roll is 140°C, and the thickness of the rolled sheet is 2mm ;
[0055] Step 3, crushing the sheet, passing through a 120-mesh sieve to form a sheet powder, and continuing to crush the particles exceeding 120 mesh until passing through a 120-mesh sieve;
[0056] Step 4, after adding 160g of diamonds with a particle size of 10 microns to the above sheet powder, put it into a ball mill for grinding;
[0057] Step 5. Finally, put it into the mold for compression molding. The mold temperature is 180±10°C and the pressure is 10kg / m 2 , the...
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