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Friction disc for high-speed rail and preparation method of friction disc

A friction disc and sample making technology, applied in the field of high-speed rail parts, can solve problems such as cost increase, and achieve the effects of preventing pores and insufficient pouring, improving appearance and internal quality, and uniform blank allowance.

Inactive Publication Date: 2017-02-15
YANGZHOU YIFENG BRONZE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Friction disc for high-speed rail and preparation method of friction disc
  • Friction disc for high-speed rail and preparation method of friction disc
  • Friction disc for high-speed rail and preparation method of friction disc

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Embodiment Construction

[0027]

[0028]

[0029]

[0030]

[0031]

[0032]

[0033] Note: Cu balance.

[0034] Carry out the test according to the above ratio, and the numbers are as follows.

[0035] Sample No sn Zn Ni Pb be P 1 1 1 1 1 1 1 2 1 1 1 1 2 2 3 1 1 1 1 3 3 4 1 2 2 2 1 1 5 1 2 2 2 2 2 6 1 2 2 2 3 3 7 1 3 3 3 1 1 8 1 3 3 3 2 2 9 1 3 3 3 3 3 10 2 1 2 3 1 2 11 2 1 2 3 2 3 12 2 1 2 3 3 1 13 2 2 3 1 1 2 14 2 2 3 1 2 3 15 2 2 3 1 3 1 16 2 3 1 2 1 2 17 2 3 1 2 2 3 18 2 3 1 2 3 1 19 3 1 3 2 1 3 20 3 1 3 2 2 1 21 3 1 3 2 3 2 22 3 2 1 3 1 3 23 3 2 1 3 2 1 24 3 2 1 3 3 2 25 3 3 2 1 1 3 26 3 3 2 1 2 1 27 3 3 2 1 3 2

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Abstract

The invention relates to a friction disc for a high-speed rail and a preparation method of the friction disc. The friction disc comprises the following components including, by weight, 3.5-5.5% of Sn, 4.0-6.0% of Zn, 1.0-3.0% of Ni, 1.5-3.5% of Pb, 0.2-0.4% of Be and the balance Cu. A vacuum suction fired mold is adopted for casting, gas in a cavity is sucked away from tiny pores in a shell, the cavity is better filled with liquid metal, the phenomena of pores and insufficient pouring are prevented, the appearance and inherent quality of products are improved, and the machining yield is up to 98%. The requirements of the friction disc for the abrasion resistance and electrical conductivity are higher, common sand casting structures are loose, casting defects are prone to occurring, and meanwhile the hardness is low. Precise die forging manufacturing is adopted, the blank allowance is even, the texture is compact, the hardness can reach the drawing requirement, and tests show that the abrasion resistance reaches and exceeds the level of foreign similar products.

Description

technical field [0001] The invention relates to a friction disc 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 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 p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22C9/02B22C9/22B22C9/04
CPCB22C9/04B22C9/22C22C9/02C22C9/04
Inventor 何叶锋戴光泽赵君文
Owner YANGZHOU YIFENG BRONZE PROD
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