1. Introduction
It is cantilever type box-beam SAW welding
machine. Welding can adopt single wire, twin wire or tri-wire. It fulfills the
automatic SAW welding of box-beam after finishing ESW, which has the features
of high efficiency, stable and reliable quality, digital display of welding
speed and variable frequency adjustable.
2. Main Parameters
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Model
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LHF12
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LHF15
|
|
Suitable work-piece size (mm)
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300—1200
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300—1500
|
|
Suitable work-piece length (mm)
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4000—15000
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|
Welding speed (m/min)
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0.24—2.4
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|
Gas source pressure (MPa)
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0.4—0.8
|
|
Rail span of trolley (mm)
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1400
|
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Power supply
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AC380V, 50HZ, 3P or tailor made
|
|
Above are our standard models and parameters, and it can be
designed and manufactured on request.
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*We reserve the right to alter
specifications without prior notice.
3. Working principle
This machine is used for box-beam automatic
SAW welding. It also can be used for H-beam fillet welding in down hand after
changing the arc guiding rack. After completing the box-beam ESW (electro-slag
welding), transfer the box-beam to one side of SAW welding machine. And then
transfer the beam to another SAW welding machine after completing one seam. The
welding arm with submerged arc welding head can move in vertical and horizontal
directions to make the welding head aim at the welding seam. On welding arm,
there is pneumatic mechanical arc-guiding device to realize the tracing. And
the machine can do the automatic SAW welding. There is flux feeding and
recovery device for this machine.
All the arc-guiding motions of this machine
are realized by pneumatic and mechanical device. All the pneumatic control
elements are imported parts. Both sides synchronous driving system is imported
A.C. variable frequency control. Welding arm UP/DOWN and LEFT/RIGHT motions are
realized by motorized gear and rack so as to fit different H-beam sizes and
avoid that it cannot stop in the middle if using gas cylinder transmission.
4. Main features
The standard models of our box-beam SAW
welding machines have the following features:
 The column-type travel unit is the frame of machine, with rigidity
and strength calculated carefully.
It has advanced and reasonable structure, all the main parts are
de-stressed post welding, guaranteeing safe, reliable working and long life.
Trolley travel is driven with 2 A.C. motors and reducers via
inverter. Fender roller is fit at lateral side of the rail, ensuring smooth and
safe running of the trolley.
Welding head and SAW welder adopts Lincoln DC1000/AC1200 twin arc
twin wire SAW welding power.
Flux feeding and recovery machine;
All motion parts have lubrication system;
Main electric elements are ABB/Siemens brands;
Standard color:
5. Reference photo
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