接触焊钢轨焊缝热影响区轨面小凹痕的预防措施

PREVENTABLE MEASURE OF SMALL CONCAVE AROUND CONTACT-WELD SEAM ON RAIL SURFACE

本文结合广州地铁二号线接触焊焊接长钢轨实践,分析了焊缝热影响区产生轨面小凹痕的原因,提出克服此类缺陷的预防措施,可供类似工程借鉴。

This paper analyzes the cause of producing small concave around weld seam according to practice of welding long rail in Guangzhou Metro Line 2, and presents the preventable measure to overcome.