采用热喷涂技术对矿用液压支架活柱表面进行表面防护修复,其目的是用该技术取代过去低温镀铁的老工艺.试验结果表明,用热喷涂技术修复矿用液压支架活柱表面是完全可行的.热喷涂涂层不但使用效果好,且还有工效高、质量稳定、无环境污染等优点,可取得明显的经济效益和社会效果. The purpose of this technology is to replace the old craft of low temperature iron plating with the technology of thermal spraying on the surface of the movable column of mining hydraulic support.The experimental results show that the repair of the surface of the movable column of mining hydraulic support with thermal spraying technology is complete Feasible. Thermal spray coating not only the use of good results, but also high work efficiency, quality and stability, no environmental pollution, etc., can obtain significant economic and social benefits.