A vitrified bond grinding disc and its preparation method
A vitrified bond and grinding disc technology, which is applied in the direction of grinding/polishing equipment, abrasive materials, grinding devices, etc., can solve the problems of long production cycle, low yield rate, cumbersome molding process, etc., and achieve short production cycle, labor saving, The effect of simple process
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Embodiment 1
[0041] Example 1: Preparation of a vitrified bonded cBN grinding disc formed by low temperature hot pressing.
[0042] (1) Surface treatment of abrasive: Add cBN (1.5 kg, particle size 140-170 mesh) as abrasive to 0.3 g / ml potassium hydroxide aqueous solution (1500 ml), stir at 80°C for 30 min, discard After liquid, wash the abrasive until it is neutral, dry it in an oven at 120°C for 2 hours, pass the dried abrasive through an 80-mesh sieve, and set aside;
[0043] Dissolve the ultra-low temperature ceramic bond (30 g) in 0.05 g / ml potassium hydroxide aqueous solution (200 ml) to obtain the alkaline aqueous solution of the bond;
[0044] Put the sieved abrasive in a stainless steel coating machine and roll it at a constant speed. At the same time, spray the alkaline aqueous solution of the vitrified bond into the abrasive and dry it with an infrared lamp, so that the surface of the abrasive can be evenly coated. A layer of vitrified bond is obtained to wrap the abrasive of v...
Embodiment 2
[0049] Example 2: Preparation of a vitrified bonded cBN grinding disc formed by low temperature hot pressing.
[0050] (1) Surface treatment of abrasive: Add cBN (1.5 kg, particle size 140-170 mesh) as abrasive to 0.3 g / ml potassium hydroxide aqueous solution (200 ml), stir at 80°C for 30 min, discard After liquid, wash the abrasive until it is neutral, dry it in an oven at 120°C for 2 hours, pass the dried abrasive through an 80-mesh sieve, and set aside;
[0051] Dissolve the ultra-low temperature ceramic bond (30 g) in 0.05 g / ml potassium hydroxide aqueous solution (200 ml) to obtain the alkaline aqueous solution of the bond;
[0052] Put the sieved abrasive in a stainless steel coating machine and roll it at a constant speed. At the same time, spray the alkaline aqueous solution of the vitrified bond into the abrasive and dry it with an infrared lamp, so that the surface of the abrasive can be evenly coated. A layer of vitrified bond is obtained to wrap the abrasive of vi...
Embodiment 3
[0057] Example 3: Preparation of a vitrified bonded cBN grinding disc formed by low temperature hot pressing.
[0058] (1) Surface treatment of abrasive: Add cBN (1.5 kg, particle size 80-100 mesh) as abrasive to 0.4 g / ml potassium hydroxide aqueous solution (200 ml), stir at 80°C for 30 min, discard After liquid, wash the abrasive until it is neutral, dry it in an oven at 120°C for 2 hours, pass the dried abrasive through a 60-mesh sieve, and set aside;
[0059] Dissolve the ultra-low temperature ceramic bond (20 g) in 0.05 g / ml potassium hydroxide aqueous solution (200 ml) to obtain the alkaline aqueous solution of the bond;
[0060] Put the sieved abrasive in a stainless steel coating machine, make it roll at a constant speed, and at the same time spray the alkaline aqueous solution of the vitrified bond into the abrasive, and dry it with an infrared lamp, so that the surface of the abrasive can be evenly coated A vitrified bond is obtained to wrap the abrasive of the vitr...
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