论文部分内容阅读
前言氧乙炔粉末喷熔法具有熔深极浅、涂层厚度可控,涂层表面光滑,修补效率高等特点。它可在不干扰铁路列车运行的条件下进行现场施工,设备简单、操作方便。该方法已应用于钢轨踏面上各种形式局部损伤的修补。专用喷熔焊炬的研制修补钢轨用的喷熔焊炬的功率既要满足在列车运行间隔时间内完成修补作业,又要适应于乙炔钢瓶和1米~3/时的乙炔发生器两种供气方式。研制了三种型号的专用焊炬,即PHT-
Introduction Oxyacetylene powder spray melting method with very shallow penetration depth, controllable coating thickness, coating surface smooth, high efficiency and so on. It can be on-site construction without disturbing the operation of the railway train, the equipment is simple and easy to operate. This method has been applied to repair various forms of local injuries on rail treads. Development of special spray welding torch The power of welding torch used for repairing rails should not only meet the repairing work within the interval of train operation but also adapt to two kinds of acetylene cylinders and acetylene generators of 1m ~ 3 / h Gas approach. Developed three types of special welding torch, PHT-