Metallic bond, diamond grinding wheel prepared through bond and preparation method of diamond grinding wheel
A metal bond, diamond grinding wheel technology, applied in the field of diamond grinding wheels, can solve the problems of low grinding efficiency, insufficient diamond holding force, short service life, etc.
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[0048] Example 1
[0049] The composition and ratio of the metal bond used in this embodiment are as follows: copper-tin pre-alloyed powder (CuSn40, in which the weight percentage of Sn is 40wt%, the rest is Cu) with a particle size of 20-50μm, 96.5wt%, Graphite powder with diameter of 20-70μm 3wt%, nano α-Al 2 O 3 0.5wt%.
[0050] (1) Ingredients and mixture: According to the above weight percentage, take 96.5% of copper-tin pre-alloyed powder (CuSn40, where the weight percentage of Sn is 40%, and the rest is Cu) with a particle size of 20-50μm, and the 3% particle size is 20 -70μm graphite powder, and 0.5% nano α-Al 2 O 3 Mix together, pass through an 80-mesh sieve, take out the sieve, add CuSn40, graphite powder and nano-α-Al 2 O 3 The total mass of 2% glycerol alcohol solution (glycerol to alcohol ratio is 1:4), and put it in the three-dimensional mixer for mixing for 1 hour. Then, diamond with a concentration of 50% (prepared at a concentration of 400%) with a particle size ...
Example Embodiment
[0056] Example 2
[0057] The composition and ratio of the metal bond used in this embodiment are as follows: copper-tin pre-alloyed powder (CuSn45, in which the weight percentage of Sn is 45%, and the rest is Cu) with a particle size of 20-50μm, 98wt%, particle size 1wt% of 20-70μm graphite powder, nano α-Al 2 O 3 1wt%.
[0058] (1) Ingredients and mixture: According to the above weight percentage, take 98% of the copper-tin pre-alloyed powder (CuSn45, in which the weight percentage of Sn is 45%, the rest is Cu) with a particle size of 20-50μm, and the 1% particle size is 20 -70μm graphite powder, and 1% nano α-Al 2 O 3 Mix together, pass through an 80-mesh sieve, take out the sieve, add CuSn40, graphite powder and nano-α-Al 2 O 3 The total mass of 2% glycerol alcohol solution (glycerol to alcohol ratio is 1:4), and put it in the three-dimensional mixer for mixing for 1 hour. Then, diamonds with a concentration of 45% (prepared at a concentration of 400%) with a particle size of...
Example Embodiment
[0064] Example 3
[0065] The composition and ratio of the metal bond used in this embodiment are as follows: copper-tin pre-alloyed powder (CuSn50, in which the weight percentage of Sn is 50%, and the rest is Cu) with a particle size of 20-50μm, 97.5wt%, 0.5wt% of graphite powder with a diameter of 20-70μm and 2wt% of nano-α-Al2O3.
[0066] (1) Ingredients and mixture: According to the above weight percentage, take 97.5% of the copper-tin pre-alloy powder (CuSn50, where the weight percentage of Sn is 50%, and the rest is Cu) with a particle size of 20-50μm, and 0.5% of the particle size is 20 -70μm graphite powder, and 2% nano α-Al 2 O 3 Mix together, pass through an 80-mesh sieve, take out the sieve, add CuSn40, graphite powder and nano-α-Al 2 O 3 The total mass of 2% glycerol alcohol solution (glycerol to alcohol ratio is 1:4), and put it in the three-dimensional mixer for mixing for 1 hour. Then, diamonds with a concentration of 40% (prepared at a concentration of 400%) and a ...
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