A kind of diamond scribing knife for dividing ceramic substrate and preparation method thereof
A ceramic substrate and diamond technology, which is applied in metal processing and other directions, can solve the problems of limiting cutting dimensional accuracy, edge chipping and large size of micro-cracks, etc., to achieve the effects of avoiding chipping, easy molding, and solving technical problems
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Embodiment 1
[0037] According to the volume ratio, accurately weigh 18.75% diamond, 52% epoxy resin powder, 6% silicon carbide, 11% aluminum oxide, 11.25% titanium oxide fiber, 1% 4-methyl benzyl alcohol, and ball mill several raw materials (120rpm / min, 3.5 hours) after mixing, use a 300-mesh sieve to sieve once to complete the molding material preparation. Put the molding material into the mold cavity, smooth it with a scraper, cover the mold, transfer the mold to the worktable of the hot press machine, heat press it with 66KN pressure, 180°C temperature, and air conditions for 15 minutes, water-cool the mold and demould to obtain a scratch. The blade is hot-pressed, and after a secondary curing at 180°C for 12 hours, it enters the machining process to grind the inner and outer diameters. The dimensional accuracy of the blade reaches 4 μm, cutting 4*3mm Al 2 o 3 Ceramic substrate, the cutting life of the blade can reach 150m, and the product yield rate is 98.5%.
Embodiment 2
[0039] According to the volume ratio, accurately weigh 18.75% diamond, 48% epoxy resin powder, 12% silicon carbide, 10% aluminum oxide, 11.05% titanium oxide fiber, 1.2% 4-methyl benzyl alcohol, and ball mill several raw materials (120rpm / min, 3.5 hours) after mixing, use a 300-mesh sieve to sieve once to complete the molding material preparation. Put the molding material into the mold cavity, smooth it with a scraper, cover the mold, transfer the mold to the worktable of the hot press machine, heat press it with 66KN pressure, 180°C temperature, and air conditions for 15 minutes, water-cool the mold and demould to obtain a scratch. The blade is hot-pressed, and after a secondary curing at 180°C for 12 hours, it enters the machining process to grind the inner and outer diameters. The dimensional accuracy of the blade reaches 4μm, and it can cut 3*3mm AlN ceramic substrates. The cutting life of the blade can reach 147m, and the product yield rate 98.5%.
Embodiment 3
[0041] According to the volume ratio, accurately weigh 18.75% diamond, 45% epoxy resin powder, 10% silicon carbide, 10.25% alumina, 15% titanium oxide fiber, 1% 4-methylbenzyl alcohol, and ball mill several raw materials (120rpm / min, 3.5 hours) after mixing, use a 300-mesh sieve to sieve once to complete the molding material preparation. Put the molding material into the mold cavity, smooth it with a scraper, cover the mold, transfer the mold to the worktable of the hot press machine, heat press it with 66KN pressure, 180°C temperature, and air conditions for 15 minutes, water-cool the mold and demould to obtain a scratch. The blade is hot-pressed, and after a secondary curing of 180°C for 12 hours, it enters the machining process to grind the inner and outer diameters. The dimensional accuracy of the blade reaches 4 μm, and it can cut 4*3mm AlN ceramic substrates. The cutting life of the blade can reach 143m, and the product yield rate 98.5%.
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