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1.概述氧乙炔焰金属粉末喷涂工艺是将金属粉末通过火焰加热至熔化或达到高塑性状态后,喷射并沉积到处理过的工件表面上,从而形成牢固结合的涂层,它属于喷涂工艺中的一种。过去人们总认为火焰粉末喷涂涂层比较疏松、孔隙率大、结合强度低。但随着制粉技术的改进,特别是放热型复合粉末的诞生,新的粉末材料问世,使火焰粉末喷涂工艺应用越来越广,它除了与其它喷涂工艺比较对工件加热温度低、涂层耐磨、用途广等优点外,该工艺最大特点是设备简单、操作方便、修复速度快、应用灵活、噪音小。近年来国外在冶金交通、铁路运输、燃化、矿山、轻工、水泥、玻璃、土建及各类机器
1. Overview Oxyacetylene flame metal powder coating process is the metal powder through the flame heated to melt or reach a high plastic state, the jet and deposited on the surface of the workpiece to be processed, so as to form a strong combination of the coating, which belongs to the spray process A kind of The past, people always think that the flame powder coating more loose porosity, porosity, low bonding strength. However, with the improvement of milling technology, especially the exothermic composite powder, the new powder material comes out to make the application of flame powder spraying process more and more widely. In addition to the low heating temperature of the workpiece compared with other spraying processes Wear-resistant layer, wide use and other advantages, the most prominent feature of the process is simple equipment, easy operation, repair speed, flexible application, low noise. In recent years, foreign countries in the metallurgical transport, rail transport, combustion, mining, light industry, cement, glass, civil engineering and all kinds of machinery