Method for preparing copper based pantograph pan material
A pantograph sliding plate, copper-based technology, applied in the field of accessories used in transportation vehicles, can solve the problems of high resistivity and poor impact toughness, and achieve the effects of low resistivity, low wear and excellent electrical conductivity.
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[0022] Example 1
[0023] The dispersion strengthened copper powder, copper-plated graphite powder and additives tin and lead are mixed in a certain proportion, and the content of copper-plated graphite as lubricating material is 20wt%. The particle size of copper-plated graphite is 100μm, the copper content is 60 wt%, and the additives The content of tin is 4wt%, the content of lead additive is 2wt%, and the dispersion strengthened copper is the balance. The mixing time is 5 hours. Put the mixed material into the hot press at a temperature of 850℃ and a pressure of Perform hot pressing at 30 MPa and hold the pressure for 30 minutes to obtain a good performance electric locomotive pantograph skateboard material;
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[0024] Example 2
[0025] The dispersion strengthened copper powder, copper-plated graphite powder and additives tin and lead are mixed in a certain proportion, and the content of copper-plated graphite as lubricating material is 25wt%. The particle size of copper-plated graphite is 125μm, the copper content is 50wt%, and the additive tin The content of the additive is 5wt%, the content of the additive lead is 3wt%, and the dispersion strengthened copper is the balance. The mixing time is 8 hours. Put the mixed material into the hot press at a temperature of 900℃ and a pressure of 40MPa Carry out hot pressing and hold the pressure for 40 minutes to obtain a good performance electric locomotive pantograph skateboard material;
Example Embodiment
[0026] Example 3
[0027] The dispersion strengthened copper powder, copper-plated graphite powder and additives tin and lead are mixed in a certain proportion. The content of copper-plated graphite as lubricating material is 30wt%. The particle size of copper-plated graphite is 150μm, the copper content is 40wt%, and the additive tin The content of the additive is 6wt%, the content of the additive lead is 4wt%, and the dispersion strengthened copper is the balance. The mixing time is 10 hours. Put the mixed material into the hot press at a temperature of 950℃ and a pressure of 50MPa Perform hot pressing under pressure and hold the pressure for 50 minutes to obtain a good performance electric locomotive pantograph slide material.
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