Annealing selection method and annealing selection system of laser welding machine

Abstract

The invention relates to the technical field of cold continuous rolling and manufacturing of plates and strips, and particularly relates to an annealing selection method and an annealing selection system of a laser welding machine. The annealing selection method comprises the following steps: calculating carbon equivalent of strip steel needing to be welded and annealed, and determining an annealing manner of the strip steel according to the carbon equivalent of the strip steel. The annealing selection system comprises a welding tractor and a controller, wherein the controller is connected to the welding tractor; the controller comprises a storage unit, a processing unit and a control unit; the storage unit is used for storing calculation parameters of the carbon equivalent of the strip steel and parameters of welding and annealing of the strip steel; the processing unit is used for obtaining the content of each element of the strip steel and a calculation model of the carbon equivalent from the storage unit, calculating the carbon equivalent of the strip steel and determining the annealing mode of the strip steel; the control unit is used for setting parameters required for welding and annealing the strip steel and sending control commands to the strip steel welding tractor. The annealing selection method and annealing selection system of the laser welding machine, provided by the invention, can be used for avoiding the problem of low welding quality caused by annealing while welding under the condition of relatively high carbon equivalent of the strip steel, and improving the quality of welding products.

Description

technical field [0001] The invention relates to the technical field of strip cold rolling processing, in particular to a laser welding machine annealing selection method and system. Background technique [0002] In the strip cold rolling process, the head and tail of the strip need to be welded by a welding machine (such as a welding trolley) to ensure the continuous production of the production line. Because the thickness of the incoming strip steel of the pickling mill is relatively thick, the laser welding machine is preferred. When the carbon equivalent of the strip steel is less than 0.5%, the effect of annealing while welding is better; when the carbon equivalent of the strip steel is greater than or equal to 0.5%, if the carbon equivalent of the strip steel is annealed while welding, excessive annealing current will seriously affect the welding gap. As a result, the welding quality is affected, and the annealing current is too small to achieve the purpose of annealin...

AI Technical Summary

Problems solved by technology

When the carbon equivalent of the strip steel is less than 0.5%, the effect of annealing while welding is better; when the carbon equivalent of the strip steel is greater than or equal to 0.5%, if the carbon equivalent of the strip steel is annealed while welding, excessive annealing current will seriously affect the welding gap. Thus affecting the welding quality, the annealing current is too small to achieve the purpose of annealing

At present, in the field of cold continuous rolling of strips, the method of annealing while welding is adopted, so it is difficult to guarantee the welding quality

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