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ERW Pipes & ERW Tubes:
For pipes or tubes size 4 inch (10.2mm) OD
and below, strip is fed into a set of
forming rolls which consists of horizontal
and vertical rollers so placed as to
gradually from the flat strip in to a tube
which is then allowed to pass the welding
electrodes. The electrodes are copper disks
connected to the secondary of a revolving
transformer assembly.
The copper disk electrodes make contact on
each side of the seam and temperature is
raised to the welding point. Outside flash
is removeed by a cutting tool as the tube
leaves the elctrodes, inside flash is
removed either by an air hammer or by
passing a mandnel through the welded tube
after the tube has been cooled. This is
termed as Electric Resistance welded or ERW
tube/pipe. If this ERW is being drawn
further to get desired size of tubes or
pipes, in cold condition is called as Cold
Drawn welded or CDW.
For More Details or placing an order
Contact Us on:
Tel: +91-22-23482114 / 5 / 6 / 7 / 8,
66310811 / 2/ 3
Fax: +91-22-23486410, 66365555
Email: onlinesales@tubeweld.com |
