RZJ114 RZJ160 seamless pipe and tube hot rolling mill production line
There are many disadvantages for methods of production like laggard technics, timeworn technical equipment and high energy consumption, heavy pollution but low efficiency. However, hot rolling seamless pipe product line has not only overcome above disadvantages but also have some advantages. For example, it is not necessary to pickling, phosphoroused and saponification; it is without chemical pollution; low investment of machines; high precision of finished tube; short of processes; heat one time then continuous producing and achieve finial production. Therefore, it is applied widely.
Technique flow chart.
billet cutting→ inspection and grinding →billet centering→billet heating→two-roller skew roll piercer→two roll A-R elongator with restricted mandrel→three-roller twelve-stander sizing M-C machine assembly→large and small cooling bed→ seven-roller vertical pipe straightener→grinding and testing→cutting→inspection and marking→packing→weighing→stock.
finished tube diameter(mm)
finished tube WT（mm）
finished tube length(mm)
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