A preparation method of electric locomotive pantograph composite slide plate
A technology for electric locomotives and pantographs, applied in the field of preparation of composite slide plates for electric locomotive pantographs, can solve the problems of good self-lubricating performance and anti-friction performance, low mechanical strength, poor wear resistance, etc., and achieve enhanced self-lubricating performance , The production equipment is simple, and the effect of improving the overall performance
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Embodiment 1
[0026] In the present embodiment, the preparation method of composite slide plate is as follows:
[0027] Prepare materials according to the following mass parts: 5 parts of silicon carbide powder, 60 parts of pitch coke powder, 10 parts of graphite powder, and 25 parts of high-temperature pitch. After mixing silicon carbide powder, pitch coke powder and graphite powder evenly, add molten high-temperature pitch, Mix uniformly at 135°C for 2 hours, then cool, and grind the cooled mixture to a powder with a particle size of 350 mesh; uniformly disperse the uniformly dispersed reduced graphene oxide aqueous dispersion (mass fraction 3%) in the above mixing Put the powder on the powder, then pre-dry the powder at 60°C for 2 hours, then put it at 150°C to cure the composite powder for 5 hours, pass the cured powder through a screw extruder, and extrude the carbon skateboard blank of the required specification. The carbon slide plate blank is baked and released from the furnace to o...
Embodiment 2
[0029] In the present embodiment, the preparation method of composite slide plate is as follows:
[0030] Prepare materials according to the following mass parts: 12 parts of silicon carbide powder, 55 parts of pitch coke powder, 8 parts of graphite powder, and 25 parts of high-temperature pitch. After mixing silicon carbide powder, pitch coke powder and graphite powder evenly, add molten high-temperature pitch, Mix evenly at 140°C for 2 hours, then cool, and grind the cooled mixture to a powder with a particle size of 400 mesh; spray-dry the uniformly dispersed reduced graphene oxide aqueous dispersion (5% by mass) and uniformly disperse it in the above mixing Put the powder on the powder, and then place the powder at 65°C for 1 hour, and then put it at 150°C to solidify the composite powder for 5 hours, pass the solidified powder through a screw extruder, and extrude the carbon skateboard blank of the required specification. The carbon slide plate blank is baked and released...
Embodiment 3
[0032] In the present embodiment, the preparation method of composite slide plate is as follows:
[0033] Prepare materials according to the following mass parts: 15 parts of silicon carbide powder, 50 parts of pitch coke powder, 5 parts of graphite powder, and 30 parts of high-temperature pitch. After mixing silicon carbide powder, pitch coke powder and graphite powder evenly, add molten high-temperature pitch, Mix evenly at 150°C for 1.5 hours, then cool, and grind the cooled mixture to a powder with a particle size of 350 mesh; uniformly dispersed reduced graphene oxide aqueous dispersion (6% by mass) is uniformly dispersed in the above-mentioned Put the powder on the mixed powder, then pre-dry the powder at 80°C for 1 hour, and then place it at 150°C to solidify the composite powder for 6 hours, pass the cured powder through a screw extruder, and extrude the carbon skateboard blank of the required specification , the carbon slide plate blank is baked and released from the ...
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