Repairable sliding plate of pantograph of electric locomotive and method for making the same

US10843571B2 · kind B2 · utility

Assignee

• Army Academy of Armored Forces · CN

Inventors

• Guozheng Ma · Beijing, CN
• Haidou Wang · Beijing, CN
• Yiwen Wang · Santa Clara, US
• Pengfei He · Beijing, CN
• Shuying Chen · Zhejiang, CN
• Ming Liu · Tangxia, CN
• Zhiguo Xing · Beijing, CN
• Haijun Wang · Beijing, CN
• Binshi Xu · Beijing, CN

Key dates

• Filing date: Jul 18, 2018
• Grant date: Nov 24, 2020
• Expiry date: Aug 28, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60L2200/26
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present disclosure relates to a novel high-performance repairable sliding plate of a pantograph of an electric locomotive and a manufacturing method thereof. The sliding plate includes a monometallic substrate and a conductive, wear-resistant, anticorrosion and self-lubricating coating integrated with the substrate. The coating is formed by plasma spraying Cu—TiO2 core-shell composite powder on the monometallic substrate directly, and includes the following components by mass percent: 60-70% of Ti4O7, 15-25% of Cu, 10-15% of TixO(2x−1) and 5-10% of TiO2, where 5≤x≤10. The multifunctional composite coating is the working layer of the sliding plate of the present disclosure, and the damage of the coating can be repaired by plasma spraying with the composite powder, thereby recovering dimensional accuracy and service performance.