水冷离心铸管机改造及效果  

Progress of Modified Water-cooled Centrifugal Pipe Casting Machine

作　　者：黄新高 苏柏林 张研 HUANG Xin-gao;SU Bai-lin;ZHANG Yan(Angang Group Yongtong Ductile Cast Iron Pipe Co.,Ltd.,Anyang Henan 455133,China)

机构地区：[1]河南安钢集团永通球墨铸管有限责任公司,河南安阳4551333

出　　处：《铸造设备与工艺》2021年第4期10-13,共4页Foundry Equipment & Technology

摘　　要：根据实际生产中存在的问题,对DN700-1 000 mm水冷离心铸管机的托轮、拔管机、接管装置、机身行走液压系统进行了技术改造。改造后托轮平均使用寿命达到60天,拔管率提高为99%,接管生产节拍由85 s降到10 s以内,机身上行速度由180 mm/s增加到370 mm/s,同时产量提高了1/3,铸管壁厚均匀性、管重误差明显改善,对国内同类水冷离心铸管机改造具有借鉴作用。According to the problems existing in the actual production,the technical transformation of the supporting wheel,the pipe drawing machine,the nosepipe device and the hydraulic system of the body walking of the DN700-1000 mm water-cooled centrifugal pipe casting machine was carried out.After the modification,the average service life of the supporting wheel reaches 60 days,the tube drawing rate is increased to 99%,the production beat of the nozzle is reduced from 85 s to less than 10 s,the upward speed of the fuselage is increased from 180 mm/s to 370 mm/s,and the output is increased by 1/3.The uniformity of the wall thickness of the cast pipe and the error of the weight of the pipe are improved significantly.It can be used for reference to the reform of similar water-cooled centrifugal tube casting machine in China.

关 键 词：铸管机 托轮 拔管机 接管装置 机身行走液压系统 

分 类 号：TG233[金属学及工艺—铸造]