Metal-impregnated carbon skateboard and preparation method thereof
A carbon sliding plate and metal immersion technology, applied in vehicle parts, electric vehicles, transportation and packaging, etc., can solve the problems of high temperature failure of adhesive glue, easy arc generation, metal mesh oxidation, etc., to achieve strong bonding ability and reduce assembly steps. Effect
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[0023] The present invention also provides a method for preparing the metal-impregnated carbon sliding plate, including:
[0024] S1: Preparation of carbon skateboard skeleton;
[0025] S2: Prepare the bracket;
[0026] S3: Assemble the carbon skateboard frame and bracket;
[0027] S4: Carbon skateboard skeleton and bracket assembled with copper liquid impregnation.
[0028] In the present invention, before step S3, the surface of the carbon skateboard skeleton is sandblasted or copper plated. The sandblasting treatment can increase the specific surface area of the carbon skateboard skeleton, thereby increasing the wetting between the carbon skateboard skeleton and the copper layer. The copper plating process is to add electroplated copper on the surface of the carbon skateboard skeleton, which can increase the wettability between the carbon skateboard skeleton and the copper layer and enhance the bonding force between the two.
[0029] In the present invention, the step S1 is kneadin...
Example Embodiment
[0035] Example 1
[0036] Preparation of the skeleton of the carbon slide plate: by weight, 60 parts of petroleum coke powder, 7 parts of artificial graphite powder, 3 parts of carbon black, and 30 parts of pitch are kneaded in a two-roll kneader for 3 h at a kneading temperature of 120°C, The kneaded carbon skateboard skeleton raw material is pressed into a flat vulcanizer under the conditions of 40°C and 80MPa, and then sintered in a vacuum furnace. The temperature rises from room temperature to 1300°C at a temperature rise rate of 0.2°C / min. Insulate at 1300°C for 2 hours, and get a carbon skateboard skeleton after cooling. The carbon skateboard skeleton has a dovetail structure with a density of 1.57 g / cm 3 , The opening rate is 20%, and the pore size is 90-180 microns.
[0037] Preparation of the bracket: by weight, 75 parts of electrolytic Fe powder, 25 parts of aerosolized Al powder and 5 parts of crushed Cr powder are mixed, molded with steel under a pressure of 200 MPa, an...
Example Embodiment
[0040] Example 2
[0041] Preparation of the skeleton of the carbon slide plate: by weight, 60 parts of petroleum coke powder, 7 parts of artificial graphite powder, 3 parts of carbon black, and 30 parts of pitch are kneaded in a two-roll kneader for 3 h at a kneading temperature of 120°C, The kneaded carbon skateboard skeleton raw material is pressed into a flat vulcanizer under the conditions of 40°C and 80MPa, and then sintered in a vacuum furnace. The temperature rises from room temperature to 1300°C at a temperature rise rate of 0.2°C / min. Insulate at 1300°C for 2 hours, and get a carbon skateboard skeleton after cooling. The carbon skateboard skeleton has a dovetail structure with a density of 1.57 g / cm 3 , The opening rate is 20%, and the pore size is 90-180 microns.
[0042] Preparation of the bracket: by weight, 75 parts of electrolytic Fe powder, 25 parts of aerosolized Al powder and 15 parts of crushed Cr powder are mixed, molded with steel under a pressure of 200 MPa, a...
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