Steel strip butt jointing machine suitable for induction heat treatment of butt welds
An induction heat treatment and docking machine technology, applied in welding/welding/cutting items, welding equipment, laser welding equipment, etc., can solve the problems of electromagnetic induction heat treatment device positioning, no space is arranged, affecting the overall cycle time of welding and annealing, etc.
Inactive Publication Date: 2015-08-05
PRIMETALS TECH FRANCE
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Problems solved by technology
As a result, no space is arranged between the lower jaws (ie positioned below the strips to be butted) for the passage of the shearing blades for cutting said ends
Therefore, positioning the electromagnetic induction heat treatment device under the strip cannot be achieved without positioning the jaws away from the weld seam to free up space for said heat treatment device, which would have disastrous consequences for the quality of positioning of the edge to be welded, or if the weld If the jaws are not opened or spaced apart then the overall cycle time for welding and annealing will be affected as a result and in this case no preheating of the area to be welded can be achieved
Method used
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[0053] figure 1An implementation example of a butt jointing machine according to the prior art is shown, which has the structure of a strip cutting machine. The end of a strip, more precisely the tail 11 of the first strip, is clamped in the first pair of jaws at the exit of the docking machine, the first pair of jaws being the first upper jaw 21 and the first lower jaw respectively. Jaw 31. The other end of the other strip, more precisely the head 12 of the second strip following the first, is clamped in a second pair of jaws at the entrance of the butting machine, said second pair of jaws being respectively are the second upper jaw 22 and the second lower jaw 32 . In particular, the configuration of the butting machine, in particular, has said jaws in position to cut the ends of the two strips. To this end, the cutting unit of the docking machine comprises an upper blade holder 4 capable of holding the upper blades 41 , 42 and a lower blade holder 5 capable of holding the...
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Abstract
A joining machine for joining ends of successive strips in a strip treatment installation includes a device welding a first end of a strip to a second end of another strip, a first pair of symmetrical clamping jaws including a first upper and a first lower clamping jaw gripping the first end of a strip, a second pair of symmetrical clamping jaws including a second upper and a second lower clamping jaw gripping the second end of a strip, the clamping jaws holding and positioning the first end facing the second end for welding the ends together. At least two clamping jaws of the two pairs each include a part for contacting one of the ends to be welded to another end. The part has a geometry and at least one constituent material reducing a strength of eddy currents likely to be created in the clamping jaw by electromagnetic induction.
Description
technical field [0001] The invention relates to a butt jointing machine suitable for induction heat treatment of steel strip butt welds. Background technique [0002] The invention relates in particular to butt welds of continuously advancing steel strips in cold rolling plants or processing plants such as surface scuffing, continuous annealing, electrolytic coating or quenching, especially welds achieved by means of laser beams, and more particularly , involving a heat treatment immediately before and / or after achieving said weld. In the following in this specification, the expression "processing plant" will be used to refer to rolling plant or the above-mentioned plant. [0003] In order to increase the productivity of strip processing plants, especially avoiding the transfer of said strip from coil to coil, modern bulk processing plants can be run continuously by butting the ends of the steel strip at the processing plant inlet It is continuously supplied in roll form, ...
Claims
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IPC IPC(8): B23K26/26B23K26/70B23K31/02C21D1/42
CPCB23K26/422C21D1/42B23K26/26B23K31/02B23K2201/16B21B15/0085B23K26/702B23K2101/16Y02P10/25B23K2103/04
Inventor 埃尔维·托马森法比安·博莱格
Owner PRIMETALS TECH FRANCE