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Induction heating method of metal strip and induction heating equipment

一种感应加热设备、感应加热的技术，应用在感应加热、感应加热控制、感应加热装置等方向，能够解决加热效率低、难均匀加热等问题

Active Publication Date: 2022-07-26
NIPPON STEEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the TF method has the following problems: when the opposing induction coils are not close to each other, the heating efficiency is low, and overheating occurs at the ends of the metal strip, making it difficult to perform uniform heating in the strip width direction.

Method used

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  • Induction heating method of metal strip and induction heating equipment
  • Induction heating method of metal strip and induction heating equipment
  • Induction heating method of metal strip and induction heating equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0064] figure 1 It is a figure which shows the schematic structure of the induction heating apparatus 10 which concerns on 1st Embodiment of this invention by a side view. like figure 1 As shown, the induction heating device 10 includes an induction heating device 11 and a control device 12 . The induction heating device 11 is an induction heating device of the TF system for heating the continuously conveyed steel strip S, and is arranged at the position P1 on the conveying line of the steel strip S. As shown in FIG. In addition, the steel strip S is an example of the metal strip in this embodiment. The control device 12 includes a temperature scanner 121 as an example of a sensor, and an arithmetic device 122 . The temperature scanner 121 is arranged at a position different from the position P1 in the conveying direction, that is, a position P2 on the conveying line of the steel belt S. In the following description, in the conveyance line of the steel strip S, the upstrea...

no. 2 Embodiment approach

[0112] Figure 9 It is a figure which shows the example of arrangement|positioning of the induction heating apparatus provided with the divided magnetic core 212 in the induction heating facility of the 2nd Embodiment of this invention, and a temperature scanner. In addition, except Figure 9 Other than the configuration of the induction heating device 21 shown, the configuration and reference of the present embodiment figure 1 Since it is the same as the above-mentioned 1st Embodiment demonstrated etc., the repeated description is abbreviate|omitted. In addition, in the induction heating process of this embodiment, the control of the movement based on the estimated displacement amount ( Image 6 in step S13, Figure 7B In addition to the point that the object of step S112) is the magnetic core 212, and Image 6 , Figure 7A and Figure 7B Since the first embodiment shown is the same, the description is omitted.

[0113] like Figure 9 As shown, the induction heating d...

no. 3 Embodiment approach

[0116] Figure 10 It is a figure which shows the schematic structure of the induction heating installation concerning 3rd Embodiment of this invention. In addition, about the Figure 10 Elements denoted by the same reference numerals as those of the first embodiment in the configuration of the illustrated induction heating device 30 and steps denoted by the same reference numerals as those of the first embodiment in the flowcharts described later are the same as those of the first embodiment described above. Since the first embodiment is the same, the overlapping description is omitted.

[0117] like Figure 10 As shown, the induction heating device 30 includes an induction heating device 11 , a control device 32 and a steering mechanism 33 . The control device 32 includes a temperature scanner 121 and an arithmetic device 322 . The steering mechanism 33 includes a steering roller 331 arranged at a position P3 on the conveying line of the steel strip S, and an actuator 332...

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Abstract

The invention provides an induction heating method of a metal strip and an induction heating device thereof. In the induction heating method of the metal strip, the metal strip being continuously conveyed is heated using the induction heating device arranged at the first position on the conveying line, and the method includes detecting the first position on the conveying line which is different from the first position. 2. The step of the displacement amount of the width direction center line of the metal strip at the position relative to the predetermined reference line; The step of calculating the estimated displacement amount of the width direction centerline of the metal strip at the first position; and based on the estimated displacement, the relative positional relationship between the induction heating device and the metal strip in the width direction of the metal strip Steps to control.

Description

technical field [0001] The present invention relates to a method for induction heating of metal strips running along the length direction and an induction heating apparatus therefor. In particular, the present invention relates to an induction heating method and induction heating of a metal strip capable of suppressing overheating of the ends in the width direction, uniformly heating a metal strip, and capable of immediately responding to positional fluctuations of the plate ends due to meandering or the like. equipment. Background technique [0002] Induction heating is a heating method that uses the principle of electromagnetic induction to generate eddy currents in the object to be heated and heat the object through Joule heat. It is widely used because of its low heat loss and high efficiency. Induction heating of metal strips generally exists in two ways. One is the following LF (Longitudinal Flux induction heating; longitudinal magnetic flux induction heating) method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/60C21D1/42H05B6/10
CPCC21D1/42C21D9/60H05B6/06Y02P10/25H05B6/10G05D3/10H05B6/101
Inventor 广田芳明平将人高桥茂树
Owner NIPPON STEEL CORP
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