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Device and method for improving transverse temperature uniformity of strip steel by transverse magnetic flux induction heating

A technology of transverse magnetic flux and induction heating, applied in the direction of induction heating, induction heating control, coil device, etc., can solve the problems of no control mode provided, temperature uniformity can not meet the requirements of strip continuous annealing process, etc.

Active Publication Date: 2021-01-12
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
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Problems solved by technology

[0005] Among the above three patents, the patent EP1148762A1 of the French fives company is closer to on-site industrial application, but its temperature uniformity still cannot meet the process requirements of strip continuous stripping, and no corresponding control method is provided

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  • Device and method for improving transverse temperature uniformity of strip steel by transverse magnetic flux induction heating
  • Device and method for improving transverse temperature uniformity of strip steel by transverse magnetic flux induction heating
  • Device and method for improving transverse temperature uniformity of strip steel by transverse magnetic flux induction heating

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Embodiment Construction

[0075] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0076] see figure 1 , a device for improving the transverse temperature uniformity of transverse magnetic flux induction heating strip steel, hereinafter referred to as transverse magnetic equipment, including: a frame, a planar electromagnetic inductor, a shielding cover, and multiple sets of magnetic poles;

[0077] The frame includes an upper frame 10 and a lower frame, and the upper frame 10 and the lower frame are fixed as a whole; the strip steel passes between the upper frame 10 and the lower frame, and the center line of the upper frame, the center line of the lower frame and the running center of the strip steel The lines coincide, the upper frame 10 and the components installed on the upper frame 10 form the front side of the transverse magnetic device, and the lower frame and the components installed on the lower frame form the rever...

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Abstract

The invention discloses a device and method for improving transverse temperature uniformity of transverse magnetic flow induction heating strip steel. The device includes a frame, a planar electromagnetic sensor (11) and magnetic poles. A group of middle fixed magnetic poles (4), a group of left and right middle movable magnetic poles (3, 5), a group of left and right side movable magnetic poles (2, 6), a group of left and right side shielding shades (1,7) are arranged on an upper frame (10). Identical magnetic poles and shielding shades are arranged on a lower frame in mirror symmetry to those on the upper frame. A scanning type temperature instrument (20) is arranged in an outlet in a strip steel operation direction. According to the invention, initial positioning setting is performed ondifferent magnetic poles and the shielding shades of transverse magnetic flow equipment in a process machine for strip steel of different specifications. When strip steel passes through the transverse magnetic flow equipment, data of the thermodetector is divided into a fixed area, a middle area, a side area and a strip band edge area in the strip steel width direction according to a specific proportion and positions of the magnetic poles and the shielding shades are adjusted separately according to different strategies according to strip steel temperature actual values of different areas.

Description

technical field [0001] The invention relates to a steel strip heating technology in a strip steel continuous annealing process, in particular to a device and a method for improving the transverse temperature uniformity of a transverse magnetic flux induction heated strip steel, which is suitable for temperature control of the transverse magnetic flux induction heated strip steel. Background technique [0002] In the fields of strip cold rolling and post-rolling treatment, such as pre-rolling heat supplement, galvanized alloying heating, coating drying, etc., longitudinal magnetic induction heating technology has been successfully applied. However, in the field of strip continuous stripping, it is necessary to heat the strip steel to 600°C to 900°C, and the hysteresis effect of the strip steel in this range is basically lost. For thin strip steel, due to the influence of the skin effect, longitudinal magnetic flux heating is sufficient It is basically impossible, so in this t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/06H05B6/40C21D9/60C21D11/00
CPCC21D9/60C21D11/00H05B6/06H05B6/40Y02P10/25
Inventor 李家波侯晓光张健民李俊
Owner BAOSHAN IRON & STEEL CO LTD
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