Method for manufacturing nano enhanced wet copper-based friction plate

Abstract

The invention relates to a method for manufacturing a nano enhanced wet copper-based friction plate. The method mainly comprises the following steps of: 1, mixing materials; 2, performing ball-milling on mixed materials; 3, profiling; 4, plating copper on a core plate; 5, performing pressure sintering; and 6, processing an oil groove. The nano enhanced wet copper-based friction plate comprises the following components in percentage by weight: 60 to 75 percent of Cu, 2 to 6 percent of Sn, 3 to 8 percent of Zn, 12 to 25 percent of C, 2 to 5 percent of SiO2, and 0.5 to 1.5 percent of nano SiO2; the materials are mixed; the step of performing ball-milling on the mixed materials comprises the following substep of placing the mixed powdery materials and steel balls in a ball mill, wherein the ratio of the steel balls to the material is 5 to 1 and the time of the ball-milling is 1.5 to 2.5 hours; the step of performing pressure sintering comprises the substeps of stacking profiled powder blank of a frictional layer and a copper-plated steel core plate in a bell jar type pressure sintering furnace and performing pressure sintering, wherein the sintering temperature is 750 to 850 DEG C; preserving heat for 2.5 to 3.5 hours, wherein the atmosphere is ammonia decomposition gas; and the step of plating copper on the core plate is to plate copper on the core plate by an electroplating method and manufacturing the copper-plated core plate and comprises the following substeps of hanging the core plate on a cathode, hanging a copper plate on an anode, adding copper ion-containing electroplate liquid into a plating bath, introducing direct current and adjusting electroplating time according to the thickness of a plating layer. The nano enhanced wet copper-based friction plate manufactured by the method has frictional wear performance and a heat resistance coefficient which are obviously superior to those of the wet copper-based friction plate manufactured by the conventional method.

Description

technical field [0001] The invention relates to a method for manufacturing a copper-based friction plate, which belongs to the technical field of powder metallurgy friction material technology. Background technique [0002] The copper-based friction plate is composed of a steel core plate and at least one side covered with a layer of copper-based friction material; the traditional copper-based friction plate manufacturing process mainly includes the following processes: 1. Ingredients, 2. Ball milling, 3. Pressing, 4. Copper plating on the core plate, 5. Pressure sintering, 6. Oil tank processing, etc.; but the disadvantages of the traditional copper-based friction plates known so far are: the friction performance of the friction plates is low, and it cannot meet the friction requirements of military products and heavy-duty machinery. The technical requirements of the film. Contents of the invention [0003] The purpose of the present invention is to overcome the deficien...

AI Technical Summary

Problems solved by technology

[0002] The copper-based friction plate is composed of a steel core plate and at least one side covered with a layer of copper-based friction material; the traditional copper-based friction plate manufacturing process mainly includes the following processes: 1. Ingredients, 2. Ball milling, 3. Pressing, 4. Copper plating on the core plate, 5. Pressure sintering, 6. Oil tank processing, etc.; but the disadvantages of the traditional copper-based friction plates known so far are: the friction performance of the friction plates is low, and it cannot meet the friction requirements of military products and heavy-duty machinery. Sheet technical requirements