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Induction heater

An induction heating device and induction heating technology, applied in the direction of induction heating devices, induction heating, electric heating devices, etc., can solve the problems of sparking traces, limited setting size, poor product quality, etc., and prevent the generation of electric sparks Effect

Inactive Publication Date: 2004-05-05
TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The problem that exists is, because of above reason, by the electric current I2 that flows into the earth by roller table roller 9, make it produce electric spark at the contact point of heated material 6 and roller table roller 9, the voltage of the applied electric power of heating coil 5,5 In the case of a higher value, the heated material 6 produces spark marks, resulting in poor product quality
[0009] However, there is a problem that: in the range of hundreds of meters of the entire steel rolling equipment, the roller frame 10 is insulated, and it will cost a lot of money when the equipment is introduced.
[0011] However, there is a problem with this method: the installation size is limited, and this method cannot be used in places where two sensors 1, 1 cannot be installed side by side.

Method used

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Embodiment Construction

[0025] Refer to the following Figure 4 Referring to FIG. 6, an embodiment of the present invention is described in detail.

[0026] Such as Figure 4 As shown, the induction heating device of this embodiment is composed of two C-shaped inductors 1, 1 and an annular iron core 11. That is, it is installed on both sides of the material to be heated 6 that is supported by the roller table rollers 9 and 9 and is conveyed, so that two C-shaped inductors face each other and the end side of the material to be heated 6 in the shape of a strip passes through. These gap parts 4, 4. The C-shaped inductor 1 has heating coils 5 and 5 wound on the upper and lower core legs 3 and 3 through the gap 4 of the C-shaped core 2 respectively, and is connected to a power source.

[0027] In addition, between the roller table rollers 9, 9 provided at the front and back of the C-shaped inductor 1, and upstream of the C-shaped inductor 1, an annular iron core 11 surrounding the entire conveyed heate...

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Abstract

There is provided a C-shaped inductors for induction heating a heated material that is carried via table rollers, which includes: a C-shaped iron core having a pair of legs facing each other by sandwiching a gap through which the heated material passes, and heating coils wound around the pair of legs of the C-shaped iron core. A ring-shaped iron core for restricting the induced currents generated in the heated material is disposed near the C-shaped inductors, and the heated material passes through the hollow part of each C-shaped inductor.

Description

technical field [0001] The invention relates to an induction heating device for inductively heating a material to be heated which is continuously conveyed. Background technique [0002] Generally speaking, in the steel rolling production line, after the heated material is preheated to a specified temperature, it is continuously transported to several rolling mills, and then rolled by several rolling mills sequentially to make it into a thin plate. In this rolling process, the heated material releases heat while being conveyed, and its temperature gradually decreases. If the heated material is rolled in this state, there is a problem in product quality, so before entering the finish rolling, the heated material is heated again, and the temperature of the entire heated material is raised before rolling. [0003] As a heating method, the material to be heated is passed through an integral heating device (integrated strip heater) formed of a solenoid coil, the temperature of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/10C21D9/60H05B6/02H05B6/36
CPCC21D9/60H05B6/365Y02P10/25H05B6/10
Inventor 土斐崎哲嗣中野聖関根宏本屋敷洋一園部学
Owner TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP