A preparation method of carbon skateboard for collector shoe and carbon skateboard for collector shoe
A carbon skateboard and collector shoe technology, applied in the field of carbon skateboards for electric locomotives, can solve the problems of complex preparation process, high cost, insufficient density and strength of pantograph skateboards, etc., and achieve the effect of simple process and reduced production cost
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[0013] The invention provides a method for preparing a carbon skateboard of a collector shoe, comprising the following steps:
[0014] S1: Prepare the granulated powder required for the carbon skateboard of the collector shoe;
[0015] S2: Molding the granulated powder at room temperature to obtain a compact;
[0016] S3: Roasting the compact into shape;
[0017] Wherein: the granulated powder includes carbon raw materials, binders and additives; and the additives are at least one of simethicone, glycerol, paraffin and n-octanoic acid.
[0018] In the present invention, the use of the additive can reduce the friction between the carbon raw material particles and the particles, thereby improving the fluidity of the granulated powder, so that it has sufficient plasticity in the molding process, so that it can be processed at room temperature The bottom is pressed into a high-density carbon skateboard blank. The additives will be removed by carbonization or gasification in the...
Embodiment 1
[0036] By weight, 50 parts of graphite powder, 20 parts of petroleum coke, 10 parts of coke powder and 5 parts of superconducting carbon black were placed in a kneader for 3 h, and then 5 parts of glycerol, 20 parts of novolak resin and Continue to wet mix 30 parts of alcohol for 4 hours, and then use a heating device to increase the temperature of the material to 70°C until the alcohol is completely volatilized to obtain a coarse powder, which is pulverized in a mill and passed through a 200-mesh sieve to obtain a granulated powder material.
[0037] At room temperature, the granulated powder was placed in a molding die, and pressed under a pressure of 200 MPa to obtain a compact, and the holding time was 2 h.
[0038] The compact is placed in a roasting furnace for roasting (N 2 Atmosphere), the heating rate was raised to 1000 °C for 20 h at a heating rate of 5 °C / h, and the carbon slide plate of the collector shoe was prepared.
Embodiment 2
[0040] By weight, 60 parts of graphite powder, 10 parts of petroleum coke, 20 parts of needle coke and 10 parts of superconducting carbon black were placed in a kneader for 3 h, and then 10 parts of simethicone and 30 parts of furfural phenol were added. Resin and 30 parts of alcohol were wet-mixed for 4 hours, and then the temperature of the material was increased to 70°C with a heating device until the alcohol was completely volatilized to obtain a coarse powder. The coarse powder was pulverized in a mill and passed through a 200-mesh sieve to obtain a manufactured product. grain powder.
[0041] At room temperature, the granulated powder was placed in a molding die, and pressed under a pressure of 300 MPa to obtain a compact, and the holding time was 0.5 h.
[0042] Put the green compact in a roasting furnace and roast it (vacuum environment), raise the temperature at a rate of 10 °C / h to 1200 °C for 20 h, and prepare the carbon slide plate of the collector shoe.
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Abstract
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