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Multi-station uniformly induction heating method and device

An induction heating device and induction heating technology, applied in induction heating, process efficiency improvement, energy efficiency improvement and other directions, can solve the problem that the multi-station induction coil cannot uniformly heat the product quality, the coils at both ends cannot heat the workpiece normally, and the power supply Output power drop and other problems, to avoid quality problems, easy to move and operate, to avoid difficult vibration

Inactive Publication Date: 2006-04-05
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology

[0012] The purpose of the present invention is to provide a multi-station (more than 3 coils) uniform induction heating method and device to solve the problem that the multi-station induction coil cannot be heated uniformly and cause the product quality to be low, and the coils at both ends cannot be heated normally The workpiece, the power output power drop caused by no-load, and the vibration cannot be started normally.

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  • Multi-station uniformly induction heating method and device
  • Multi-station uniformly induction heating method and device
  • Multi-station uniformly induction heating method and device

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Embodiment Construction

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] see Figure 4 , which is the first induction coil connection method in the multi-station uniform induction heating method of the present invention. Each induction coil has two circuit ports, the left is the input and the right is the output. Connect the eight induction coils 11 to 18, starting from the induction coil 11, connect the output end of the coil 11 to the input end of the coil 12 by connecting the copper bar 2, and then connect the output end of the coil 12 to the input end of the coil 12 through another connecting copper bar. The input end of the coil 13 is connected, the output end of the coil 13 is connected with the input end of the coil 14, the output end of the coil 14 is connected with the left port of the power output bus bar 1, and the right port of the power output bus bar 1 is connected with the induction coil 15. The input e...

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Abstract

The method for multistation even induction heating comprises, connecting input and output ends of a plurality of induction coils to form current path in series; connecting copper line with mother line of power output end to make reverse magnetic field direction of adjacent coils; arranging guide rings or gather magnetic rings on outer ends of coil with position regulated freely to gather current on out semicircle toward inner side and tend to even of current density and distribute consistently of magnetic field for eve heating. This invention avoids workpiece quality problem as uneven heating, decrease power consumption.

Description

technical field [0001] The present invention relates to the field of heat treatment technology. Background technique [0002] Induction heating has a series of advantages such as energy saving, high efficiency and easy automation. The basic principle of induction heating of metal materials is to rely on the phenomenon of electromagnetic induction. The alternating electric field generated by the alternating magnetic field generates eddy currents on the surface or inside to heat the metal materials. Of course, the parameters of the power supply are different, or the shape of the induction coil and the distribution of multiple induction coils are different or interfere with each other, which will directly affect the distribution of the magnetic field in the coil, resulting in inconsistent heating efficiency and heating temperature of the workpiece. It is the most common in industrial production. The traditional multi-station induction heating coils are generally bare, and som...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/42H05B6/02
CPCY02P10/25
Inventor 周月明侯晓光潘孝礼温宏权钱惠江朱世忠
Owner BAOSHAN IRON & STEEL CO LTD
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