Hangzhou  welded steel pipe roll forming machine 

I. Summary

 The mill is intended for manufacturing of round pipe,rectangular pipe and square pipe of with thickness of 0.8mm–2.0mm from cold-rolled and hot-rolled coil strip by means of unclosed tubular blank with its subsequent welding into tube, edge heating by means of solid state high-frequency welder, longitudinal seam welding in rolls of tube welding machine, cooling, further sizing or shaping and on-stream cutting of endless tube in measured lengths.

Finished product will be of round, square or rectangular pipe.

II. Working flow 

SteelTape→→ Double-head un-coiler →→Strip-head Cutter and welder→→Cage Loop→→Forming section(Flattening unit +Main driving unit +Forming unit +Guide unit +High frequency induction welding unit +squeeze roller)+ De-burr frame →→Cooling unit →→ Sizing unit and straightener →→Flying saw under computer-control →→ Run-out table

III. Basic conditions:

a) Steel Pipe Specification

b) Steel Tape Specification

1. Material: Carbon steel (δb≤500Mpa, δs≤235Mpa)

2. Steel Tape: 

c) Electric installed capacity:      appro. 350KW

d) Size of the whole line:           appro. 50X5m

IV Photos show

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