Grinding wheel applied to liquid crystal glass chamfering and manufacturing method thereof
A technology of liquid crystal glass and grinding wheel, which is applied in the field of ultra-precision processing of substrate substrates, can solve the problems of large chipping, product scrapping, fragmentation, etc., and achieve the effect of reducing strength and good holding force
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[0036] Example 1
[0037] A preparation method of a grinding wheel applied to liquid crystal glass chamfering, comprising the following steps:
[0038] (1) Coarse grinding layer binder configuration: the binder consists of 10wt% Sn-Cu alloy powder (the mass ratio of Sn and Cu is 34.5:65.5), and 80wt% Ag-Ni alloy powder (the mass ratio of Ag and Ni is 34.5:65.5). 37:63), 10wt% paraffin composition. Weigh the raw materials of the binder in proportion, mix well, and then weigh the 80-mesh diamond and the mixed binder according to the mass ratio of diamond and binder of 1:5. Mix the mixture of diamond and binder with absolute ethanol according to the mass ratio of 1:8, stir for 30 minutes, the stirring speed is 1200rpm / min, and finally put it in an oven at 90 ° C for 4 hours to dry, and pass through a 140-mesh sieve Get a mix.
[0039] (2) Put the mixture in step (1) into a graphite mold of the corresponding size, and press it into a rough grinding layer under the pressure of 2MP...
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[0043] Example 2
[0044] A preparation method of a grinding wheel applied to liquid crystal glass chamfering, comprising the following steps:
[0045] (1) Coarse grinding layer binder configuration: the binder consists of 30wt% Sn-Cu alloy powder (the mass ratio of Sn and Cu is 42:58), and 60wt% Ag-Ni alloy powder (the mass ratio of Ag and Ni is 42:58). 22:78), 10wt% paraffin composition. Weigh the raw materials of the binder in proportion, mix well, and then weigh the 120-mesh diamond and the mixed binder according to the mass ratio of diamond and binder of 1:10. Put the diamond and binder into the mixture of diamond and binder and anhydrous ethanol according to the mass ratio of 1:9, stir for 50 minutes, the stirring speed is 1200rpm / min, and finally put it in an oven at 120 ℃ Dry for 2 hours, and sieve through 140 mesh to obtain a mixture.
[0046] (2) Put the mixture in step (1) into a graphite mold of corresponding size, and press it into a rough grinding layer under ...
Example Embodiment
[0050] Example 3
[0051] A preparation method of a grinding wheel applied to liquid crystal glass chamfering, comprising the following steps:
[0052] (1) Coarse grinding layer binder configuration: the binder is composed of 15wt% Sn-Cu alloy powder (the mass ratio of Sn and Cu is 33:67), and 60wt% Ag-Ni alloy powder (the mass ratio of Ag-Ni is 33:67). 20:80), 25wt% paraffin composition. Weigh the raw materials of the binder in proportion, mix well, and then weigh the diamond and the mixed binder according to the mass ratio of 140 mesh diamond and binder of 1:8. Put the diamond and the binder into absolute ethanol, stir for 40 minutes at a stirring speed of 1200 rpm / min, and finally put them in an oven at 100 ° C for 3 hours to dry, and sieve 120 mesh to obtain a mixture.
[0053] (2) Put the mixture into a graphite mold of the corresponding size, under the pressure of 6MPa, keep it at 45℃ for 30min, 200℃ for 20min, 400℃ for 15min, 650℃ for 20min, and press it into a rough ...
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