Carbon brush holder for high-speed railway and manufacturing method thereof

Abstract

The invention relates to a carbon brush holder for the high-speed railway and a manufacturing method of the carbon brush holder for the high-speed railway. The carbon brush holder for the high-speed railway comprises, by weight, 59%-63% of Cu, 1%-3% of Sn, 0.3%-0.5% of Ni, 0.1%-0.3% of Mg, 0.1%-0.3% of Ag, 0.1%-0.3% of Be and the balance Zn. According to the carbon brush holder for the high-speed railway and the manufacturing method of the carbon brush holder for the high-speed railway, vacuum suction investment casting is adopted, gas in a cavity is sucked out through micropores in a shell, liquid metal can be better fed into the cavity, the pore phenomenon and the short run phenomenon are avoided, the appearance quality and the internal quality of the product are improved, and the processing yield reaches 98%; the carbon brush holder has high requirements for wear resistance and conductivity, but a common sand mold cast structure is loose, prone to generating casting flaws and low in hardness; and the carbon brush holder for the high-speed railway is manufactured through precise die forging, the blank allowance is uniform, the texture is compact, the hardness can meet drawing requirements, and tests show that the wear resistance of the carbon brush holder for the high-speed railway reaches or exceeds the level of foreign like products.

Description

technical field [0001] The invention relates to a carbon brush holder for high-speed rail and a preparation method thereof, belonging to the technical field of high-speed rail components. Background technique [0002] As a modern means of transportation, high-speed rail has brought great changes to people's travel with its high-speed and fast way. Because of the high-speed characteristics of high-speed rail, higher requirements are placed on the materials of various components. Therefore, the existing Many high-speed rail components rely on imports, resulting in a substantial increase in cost, which has greatly restricted the development of my country's high-speed rail. The carbon brush holder is the most obvious example, so it needs to be improved. Contents of the invention [0003] The purpose of the present invention is to provide a carbon brush holder for high-speed rail with reasonable proportion and excellent performance and its preparation method. [0004] The techn...

AI Technical Summary

Problems solved by technology

[0002] As a modern means of transportation, high-speed rail has brought great changes to people's travel with its high-speed and fast way. Because of the high-speed characteristics of high-speed rail, higher requirements are placed on the materials of various components. Therefore, the existing Many high-speed rail components rely on imports, resulting in a substantial increase in cost, which has greatly restricted the development of my country's high-speed rail. The carbon brush holder is the most obvious example, so it needs to be improved

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