Friction disk and preparation method thereof

Abstract

The invention relates to a friction disk and a preparation method thereof. The friction disk comprises, by weight, 56%-60% of Cu, 0.5%-2.0% of Al, 1.0%-2.0% of Sn, 2%-3.5% of Pb, 0.04%-0.06% of Be, 0.1%-0.4% of P and the balance Zn. According to the friction disk and the preparation method thereof, vacuum suction investment casting is adopted, gas in a cavity can be sucked away through tiny pores in a shell so that liquid metal can be better filled into the cavity, the phenomena of air pores and short run are prevented, the product appearance and inner quality are improved, and the machining rate of finished products reaches 98%. The requirements for abrasion resistance and electrical conductivity by the friction disk are high, the common sand casting structure is loose, casting defects can be caused easily and meanwhile the hardness is relatively low. By means of the friction disk and the preparation method thereof, precision die forging manufacture is adopted, so that the blank allowance is uniform, and the texture is compact; and the hardness can also meet the drawing requirement, and the abrasion resistance reaches and exceeds the level of similar products overseas through experiments.

Description

technical field [0001] The invention relates to a friction disc 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 friction disc 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 high-speed rail friction disc with reasonable proportion and excellent performance and its preparation method. [0004] The technical scheme that the present invention ado...

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 friction disc is the most obvious example, so it needs to be improved

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