Copper-impregnated carbon sliding plate material for high-speed train pantograph and preparation method thereof
A technology for high-speed trains and carbon skateboards, which is applied in the direction of current collectors, electric vehicles, vehicle parts, etc., and can solve problems such as a wide variety of formula raw materials, short service life of metal-impregnated carbon skateboards, and complicated preparation processes.
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Examples
Embodiment 1
[0022] S1. Particle coating: First, weigh the raw materials with a particle size of 80 mesh petroleum coke powder and thermosetting phenolic resin at a mass ratio of 1:0.5, and mix the weighed raw materials evenly in a mixer for 1.0 hour; Then, heat and solidify the uniformly mixed raw materials, the curing temperature is 100°C, and the curing time is 0.5 hours; finally, the solidified raw materials are taken out from the mixer and crushed after cooling, and the particle size of the crushed particles is 60 mesh;
[0023] S2. Asphalt mixing: add the coke powder-coated phenolic resin particles and coal tar pitch in step S1 into the kneader at a mass ratio of 1:0.25, and mix in the kneader. The mixing temperature is 150° C. and the mixing time is 1.5 hours;
[0024] S3, compression molding: put the raw materials mixed in step S2 into a mold for compression molding, and the molding pressure is 100MPa;
[0025] S4. Roasting: put the pressed compact in step S3 into a roasting furnac...
Embodiment 2
[0028] S1. Particle coating: First, weigh the raw materials with a particle size of 200 mesh pitch coke powder and thermosetting phenolic resin at a mass ratio of 1:0.8, and mix the weighed raw materials evenly in a mixer, and the mixing time is 2.0 hours; Then, heat and solidify the uniformly mixed raw materials, the curing temperature is 250°C, and the curing time is 0.5 hours; finally, the solidified raw materials are taken out from the mixer and crushed after cooling, and the particle size of the crushed particles is 180 mesh;
[0029] S2. Asphalt mixing: add the coke powder-coated phenolic resin particles and coal tar pitch in step S1 into the kneader at a mass ratio of 1:0.35, and mix in the kneader. The mixing temperature is 120° C. and the mixing time is 2 hours;
[0030] S3, compression molding: put the raw materials mixed in step S2 into a mold for compression molding, and the molding pressure is 250MPa;
[0031] S4. Roasting: put the compact compacted in step S3 int...
Embodiment 3
[0034] S1. Particle coating: First, weigh the raw materials with a particle size of 20 mesh petroleum coke powder and thermoplastic phenolic resin at a mass ratio of 1:0.1, and mix the weighed raw materials evenly in a mixer for 0.5 hours; Then, heat and solidify the uniformly mixed raw materials, the curing temperature is 180°C, and the curing time is 2 hours; finally, the solidified raw materials are taken out from the mixer and crushed after cooling, and the particle size of the crushed particles is 10 mesh;
[0035] S2. Asphalt mixing: add the coke powder coated phenolic resin particles and coal tar pitch in step S1 into the kneader at a mass ratio of 1:0.20, and mix in the kneader at a mixing temperature of 200°C and a mixing time of 0.5 hours;
[0036] S3, compression molding: put the raw materials mixed in step S2 into a mold for compression molding, and the molding pressure is 200MPa;
[0037] S4. Roasting: put the compact compacted in step S3 into a roasting furnace f...
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Abstract
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