RZJ60 Hot Rolling Seamless Pipe Production Line
RZJ90 Hot Rolling Seamless Pipe Production Line
RZJ100 Hot Rolling Seamless Pipe Production Line
RZJ160 Hot Rolling Seamless Pipe Production Line
RZJ430 Hot Rolling Seamless Pipe Production Line
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RZJ160 Hot Rolling Seamless Pipe Production Line
There are many disadvantages for methods of production like laggard technics, timeworn technical equipments 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 final production. Therefore, it is applied widely.
Production technique flow is as follows: billet cutting --- inspection and grinding --- billet centening --- billet heating --- two-roller horizontal cross rolling piercer --- two-roll A-R elongator with mandrel retained --- three-roller sizing mill --- large and small cooling bed --- nine-roller vertical pipe straightener --- grinding and testing --- cutting --- inspection and marking --- packing --- weighing --- warehouse
Technical parameter Billet diameter (mm)
140-230
Finished tube diameter (mm)
133-219
Finished tube WT (mm)
5-22
Main machines description LWZC160 two-roller cross rolling piercer
Details shown in LWZC160
LZJ219 two-roll automatic rolling mill Main motor power (KW)
1250
Main reducer type
ZLY800/i=10
Roller diameter (mm)
850
Roller length (mm)
460
Roller speed (rpm)
99
510 three-roll sizing mill
Details shown in 510 sizing mill
YGJ220B nine-roller straightener
Details shown in YGJ220B
 
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