摘要
煤矿井下液压支架立柱需要在表面附着耐腐蚀、耐磨损的材料,以增加其使用寿命、减少升井次数。目前主要采用电镀和激光熔覆等技术手段。但是这些技术面临着环保、成本以及生产效率的问题。通过水下爆炸复合技术将1.2 mm厚的304不锈钢圆筒直接复合在直径Ф108 mm、长度220 mm的Q235圆柱材料表面。经过测试,结合强度超过260 MPa,经过锯床加工和车床加工未出现分层等缺陷。该方法可将耐磨、耐腐蚀材料附着在液压支架立柱表面,具有结合强度高、加工成本低、加工效率高的优点。
The hydraulic support column in coal mine needs to be attached with corrosion-resistant and wear-resistant materials on the surface to increase its service life and reduce the number of shaft lift.At present,electroplating and laser cladding technologies are mainly used.However,these technologies face issues of environmental protection,cost and production efficiency.By using underwater explosive cladding technology,a 1.2 mm thick 304 stainless steel cylinder was directly cladded onto the surface of a Q235 cylindrical material with a diameter ofФ108 mm and a length of 220 mm.After testing,the combined strength exceeded 260 MPa,and there were no defects such as delamination after sawing and lathe processing.This method can attach wear-resistant and corrosion-resistant materials to the surface of hydraulic support column,with the advantages of high bonding strength,low processing cost and high processing efficiency.
作者
周大鹏
Zhou Dapeng(CCTEG Huaibei Blasting Technology Research Institute Co.,Ltd.,Huaibei 235000,China;Anhui Key Laboratory of Explosive Energy Utilization and Control,Huaibei 235000,China)
出处
《煤矿机械》
2025年第5期65-67,共3页
Coal Mine Machinery
基金
安徽省重点研究与开发计划项目(2022a05020021)
中煤科工集团重庆研究院有限公司自立科研开发项目(2023YBXM58)。
关键词
液压支架
水下爆炸复合
耐腐蚀
激光熔覆
hydraulic support
underwater explosive cladding
corrosion-resistant
laser cladding
