Method for manufacturing abrasive wheels for high-speed railway track slabs by brazing diamonds with laser
A technology for high-speed railways and production methods, applied in metal material coating technology, coatings, etc., can solve problems such as low processing efficiency, peeling of electroplating layers, and low service life of grinding wheels, and achieve good grinding quality and fast cooling speed , The effect of high grinding efficiency
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Embodiment 1
[0015] A kind of laser brazing diamond is made the production method of high-speed railway track plate grinding wheel, by weight percentage, comprises the following steps:
[0016] 1. Mixing materials: Ag-Cu-Ti alloy powder solder and pressure-sensitive adhesive (octyl 55%, butyl fat 23%, acrylic acid 4%, light ethyl fat 3%, vinyl acetate 4%, over Ammonium 0.5%, ammonium bicarbonate 0.5%) are mixed uniformly into solder slurry in a ratio of 1:3;
[0017] 2. Coating: Apply and fix the brazing filler metal slurry on the surface of the grinding wheel steel substrate with a brush evenly with moderate thickness;
[0018] 3. Spraying: the diamond abrasive is evenly sprayed and adhered to the surface layer of the solder slurry on the surface of the grinding wheel; the thickness of the solder slurry on the surface of the grinding wheel substrate is 90% of the average particle size of the abrasive.
[0019] 4. Brazing: In a gas protection atmosphere, use laser heating to heat up the s...
Embodiment 2
[0021] 1. Mixing materials: Ni-Cr-B-Si alloy powder solder and pressure-sensitive adhesive (octyl 60%, butyl fat 25%, acrylic acid 5%, light ethyl fat 5%, vinyl acetate 4.5% , ammonium peroxide 0.3%, ammonium bicarbonate 0.2%) are mixed uniformly into solder slurry in a ratio of 1:3;
[0022] 2. Coating: Apply and fix the brazing filler metal slurry on the surface of the grinding wheel steel substrate with a brush evenly with moderate thickness;
[0023] 3. Spraying: Evenly spray and inlay the diamond abrasive on the surface layer of the solder slurry on the surface of the grinding wheel, so that the thickness of the solder slurry on the surface of the grinding wheel substrate is 110% of the average particle size of the abrasive.
[0024] 4. Brazing: In a gas protection atmosphere, use laser heating to heat up the solder until the solder melts. The brazing temperature is the melting point of the solder + 50°C. After cooling, the diamond abrasive is brazed and fixed on the surf...
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