无缝管是一种具有中空截面、周边没有接缝的长条钢材。
生产工艺流程
管坯--检验--剥皮--检验--加热--穿孔--酸洗--修磨--润滑风干--焊头--冷拔--固溶处理--酸洗--酸洗钝化--检验--冷轧--去油--切头--风干--内抛光--外抛光--检验--标识--成品包装
Seamless pipe is a kind of steel with hollow section and no seams around it. Production process blank-inspection-peeling-inspection-heating-piercing-pickling-grinding-lubricating air-drying-welding head-cold drawing-solid solution treatment-pickling-pickling passivation-inspection-cold rolling-deoiling-cutting head-air drying-internal polishing-external polishing-inspection-marking-finished product packaging