Diamond grinding wheel of resin ceramic composite material and preparation method thereof
A ceramic composite material and diamond technology, which is used in metal processing equipment, grinding/polishing equipment, abrasives, etc., can solve the problems of poor shape retention and low heat resistance of diamond grinding wheels, and prolong the life of the grinding wheel and reduce the surface roughness. , Improve the effect of poor heat resistance
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Embodiment 1
[0033] The resin-ceramic composite diamond grinding wheel of the present invention, the diamond grinding wheel includes a base body and a working layer, and the raw material composition of the working layer is (expressed in mass percentage):
[0034] Glass ceramic powder 23%, industrial diamond 27%, polyimide resin 42% and zinc oxide (ZnO) 8%.
[0035] The particle size of the glass-ceramic powder used is finer than 400 mesh, and the zinc oxide powder is: zinc oxide (ZnO) is analytically pure, and the mass percentage of ZnO is >99%; the particle size of the industrial diamond used is 80 / 100-400 / 500; the particle size of the resin binder polyimide resin powder is 30-40 μm.
[0036] The performance and technical index conditions of the polyimide resin used are (see Table 2 for details):
[0037] .
[0038] The glass-ceramic powder is prepared by the following method:
[0039] a. In terms of mass percentage, the raw material composition of glass-ceramic powder is Li 2 O 3%...
Embodiment 2
[0045] Embodiment 2: basically the same as Embodiment 1, the difference is:
[0046] The resin-ceramic composite diamond grinding wheel of the present invention, the diamond grinding wheel includes a base body and a working layer, and the raw material composition of the working layer is (expressed in mass percentage):
[0047] Glass ceramic powder 15%, industrial diamond 25%, polyimide resin 55% and zinc oxide (ZnO) 5%.
[0048] The difference between the preparation method of the described glass-ceramic powder and Example 1 is:
[0049] In step a: expressed in mass percent, the raw material composition of glass-ceramic powder is Li 2 O 5%, Na 2 O 20%, B 2 o 3 15%, Al 2 o 3 5%, SiO 2 44.5%, ZnO 5%, MgO 5% and ZrO 2 0.5%;
[0050] In step b: the mixture obtained after ball milling and mixing is put into a high-temperature furnace for melting, the melting temperature is 1350° C., and the time is 2.5 hours;
[0051] In step c: water quenching the melted mixed material ...
Embodiment 3
[0054] Embodiment 3: basically the same as Embodiment 1, the difference is:
[0055] The resin-ceramic composite diamond grinding wheel of the present invention, the diamond grinding wheel includes a base body and a working layer, and the raw material composition of the working layer is (expressed in mass percentage):
[0056] Glass-ceramic powder 30%, industrial diamond 35%, polyimide resin 32% and zinc oxide (ZnO) 3%.
[0057] The difference between the preparation method of the described glass-ceramic powder and Example 1 is:
[0058] In step a: expressed in mass percent, the raw material composition of glass-ceramic powder is Li 2 O 4%, Na 2 O 10%, B 2 o 3 25%, Al 2 o 3 9.5%, SiO 2 40%, ZnO 8%, MgO 2% and ZrO 2 1.5%;
[0059] In step b: the mixture obtained after ball milling and mixing is put into a high-temperature furnace for melting, the melting temperature is 1300° C., and the time is 3 hours;
[0060] In step c: water quenching the melted mixed material ...
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