Development of sinter linings for high-speed trains

IF 2.4 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Testing Pub Date : 2024-07-08 DOI:10.1515/mt-2023-0422

Sunay Bebekoğlu, Ahmet Topuz, Esin Çakır, Abdülhamit Adsoy, Turgay Yıldıran

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引用次数: 0

Abstract

Abstract In this study, brake linings with Cu (copper)-based and Cu-10Sn (bronze)-based matrix structures have been developed and produced by the powder metallurgy method using sinter metal technology for use in high-speed trains. The developed linings were compared with commercial high-speed train linings. Firstly, the mixing process was carried out in a Turbulo 3V three-dimensional mixer for 4.5 h at 50 rpm. The pressing process was performed at room temperature, under the pressure of 350–450 MPa, and the sintering temperature for Cu-based linings was 1,000 °C, while for Cu-10Sn-based linings, it was 800 °C. After the pressing and sintering processes, lining sample density calculations were conducted, and hardness tests were carried out in the Rockwell L scale. Shear strength tests, friction coefficient, and wear tests were conducted according to SAE J 661 standards. It was observed that sinter metal brake linings with Cu and Cu-10Sn main matrix structures showed similar properties and met the technical requirements. It was determined that the developed production prescriptions are promising for industrial production and patent studies.

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为高速列车开发烧结衬里

摘要在这项研究中，采用烧结金属技术，通过粉末冶金法开发并生产了基体结构为 Cu（铜）和 Cu-10Sn（青铜）的制动衬片，用于高速列车。所开发的衬里与商用高速列车衬里进行了比较。首先，混合过程在 Turbulo 3V 三维混合器中以 50 rpm 的转速进行了 4.5 小时。压制过程在室温下进行，压力为 350-450 兆帕，铜基衬里的烧结温度为 1,000 °C，而铜-10Sn 基衬里的烧结温度为 800 °C。压制和烧结过程结束后，对衬里样品的密度进行了计算，并用洛氏硬度计进行了硬度测试。根据 SAE J 661 标准进行了剪切强度测试、摩擦系数和磨损测试。结果表明，具有铜和铜-10Sn 主基体结构的烧结金属制动器衬片表现出相似的性能，符合技术要求。研究结果表明，所开发的生产处方有望用于工业生产和专利研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Testing 工程技术-材料科学：表征与测试

CiteScore

4.20

自引率

36.00%

发文量

165

审稿时长

4-8 weeks

期刊介绍： Materials Testing is a SCI-listed English language journal dealing with all aspects of material and component testing with a special focus on transfer between laboratory research into industrial application. The journal provides first-hand information on non-destructive, destructive, optical, physical and chemical test procedures. It contains exclusive articles which are peer-reviewed applying respectively high international quality criterions.