Preparation method for conductive paste

Abstract

The invention discloses a preparation method for conductive paste. The method comprises the following steps of: grinding various waste carbon brushes into powder; screening the ground carbon brush powder; and well mixing the carbon brush powder and high temperature resistant lithium grease according to the proportion of 3:1, stirring and blending the mixture to obtain the conductive paste. The shortcoming of high cost of conductive paste on the market is overcome. The conductive paste can be prepared only by grinding the various waste carbon brushes into the powder and then uniformly stirring the powder and the high temperature resistant lithium grease according to a certain proportion. The waste carbon brushes with high electrical conductivity are excellent conductive materials, and can be collected anywhere; the high temperature resistant lithium grease has a good protection and lubrication function for contact parts of equipment; and therefore, the conductive paste prepared from the two raw materials has a good effect. By the method, waste is turned into wealth, and the conductive paste with high performance is prepared from the raw materials which are low in cost and readily available by a simple preparation process.

Description

technical field [0001] The invention belongs to the technical field of electrical materials, and in particular relates to a method for making conductive paste. Background technique [0002] Conductive paste, also known as electric power compound grease, is a new type of electrical material, which can be used on the contact surface of electric power connectors, and has remarkable effects of reducing resistance, anticorrosion, and saving electricity. Our country has been developing and producing since the 1980s, and there are dozens of varieties and models up to now. Their basic performance is the same. They use mineral oil, synthetic lipid oil, and silicone oil as base oils, and add conductive, anti-oxidant, anti-corrosion, and arc-suppressing special oils. Additive, a soft paste made by grinding, dispersing and modifying. And the conductive paste sold in the market is because its composition contains rare metals such as gold, silver, copper, aluminum, chromium, the market p...

AI Technical Summary

Problems solved by technology

The conductive paste sold in the market is expensive because its composition contains gold, silver, copper, aluminum, chromium and other rare metals. If it is used in large quantities, it will increase the maintenance cost.