等离子熔覆技术在液压支架立柱修复中的应用研究  

Application of Plasma Cladding Technology in Repair of Hydraulic Support Column

作　　者：管嘉琛 GUAN Jia-chen(Datong Litai Machinery Co.,Ltd.,Datong 037000,Shanxi)

机构地区：[1]大同力泰机械有限公司,山西大同037000

出　　处：《凿岩机械气动工具》2024年第3期30-33,共4页Rock Drilling Machinery & Pneumatic Tools

摘　　要：液压支架柱类零件传统电镀修复工艺存在污染严重、表面质量较差、寿命较短等问题。本文对液压支架柱类零件修复工艺进行研究,提出一种等离子熔覆表面改性修复工艺和技术。以煤矿液压支架立柱DW25-250/100单体液压支柱为研究对象,制备了Fe-Cr-Nb-Si-Mo合金涂层,分别采用电镀技术和等离子熔覆技术对表面进行处理,电镀工艺得到的立柱表面硬度为25~30 HRC,而等离子熔覆处理后的表面硬度值为60~75HRC。等离子熔覆技术表面硬度值高,耐磨性和耐腐蚀性能较好,延长了液压支架的使用寿命。研究结论可为提高液压支架立柱修复性能提供参考。The hydraulic support column parts traditional electroplating repair process has serious pollution,poor surface quality,short life.This paper studies the hydraulic support column parts repair process,put forward a kind of plasma cladding surface modification repair process and technology.Fe-Cr-Nb-Si-Mo alloy coating is researched-studied,and the surface is treated by electroplating technology and plasma cladding technology respectively.The results show that the surface hardness of the column obtained by electroplating process is 25~30 HRC,while the surface hardness value of plasma cladding is 60~75 HRC,with high surface hardness value,good wear resistance and corrosion resistance,which extends the service life of the hydraulic support,and achieves satisfactory experimental results.The research conclusion can provide a reference for improving the repair performance of the hydraulic support column.

关 键 词：液压支架 立柱 表面修复 等离子熔覆 

分 类 号：TD355.4[矿业工程—矿井建设]