hot gas welding

This paper introduces the problems existing in the coke car's track before transformation, makes theoretical analysis on the thermite welding, and expounds the social benefit and economic benefit of paving the vehicular track by using the thermite welding.

介绍了熄焦车轨道改造前存在的问题,对铝热焊接进行了理论分析,阐述了铝热焊接行车轨道的社会效益及经济效益。

Because the thermite welding needs no electricity or gas and operates expediently, four kinds lash-up welding tools were designed and manufactured, which are self-propagating high-temperature synthesis (SHS) welding pot, SHS welding sleeve, portable shaft welding apparatus and adjustable shaft welding apparatus.

为此,利用铝热焊接无需电、气以及操作方便的特点,自行设计制作了自蔓延焊锅、自蔓延焊筒、便携式焊轴器和可调式焊轴器4种应急焊修工具,推动了铝热焊接技术的实用化进程。