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Induction heating device having temperature compensation function

A technology of induction heating device and temperature compensation, which is used in manufacturing tools, heat treatment equipment, and energy efficiency improvement. It can solve problems such as uneven temperature distribution and affect product quality, achieve uniform temperature distribution, avoid repeated disassembly, and small temperature difference. Effect

Inactive Publication Date: 2014-12-31
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature distribution of such large workpieces in the length direction is uneven, which affects product quality

Method used

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  • Induction heating device having temperature compensation function
  • Induction heating device having temperature compensation function
  • Induction heating device having temperature compensation function

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] see figure 1 , an induction heating device with a temperature compensation function, comprising an inductor component 1, a temperature detection component 2, a PLC control system 6 and a compensation component, the compensation component includes several compensation units, the compensation unit includes a capacitance compensation unit 3 and an inductance compensation unit The unit 4, the capacitance compensation unit 3 and the inductance compensation unit 4 are respectively provided with an independent circuit breaker 5, and the capacitance compensation unit 3 and the inductance compensation unit 4 are connected in parallel, and the circuit breaker 5 is an electric circuit breaker; each compensation unit is connected in parallel with the inductor On the induction coil unit of the component 1, the circuit breaker 5 is connected to the PL...

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Abstract

The invention discloses an induction heating device having a temperature compensation function. The induction heating device includes an inductor component (1), a temperature detecting component (2), a PLC control system (6) and a compensation component; the compensation component comprises a plurality of compensation units; the compensation units comprise capacitance compensation units (3) and inductance compensation units (4), the capacitance compensation units and the inductance compensation units are each provided with a circuit breaker (5) and are connected in parallel, each compensation unit is connected in parallel with an induction coil unit of the inductor component, and the circuit breakers are controlled by the PLC control system. A power supply (8) provides power for the components and systems including the inductor component and the PLC control system, and a workpiece (7) is lifted into the inductor component. The compensation units are adopted to adjust the distribution of the current on induction heating coils, and then the local temperature of the workpiece is subjected to real-time compensation and adjustment, so as to achieve the purpose of controlling longitudinal temperature distribution in the workpiece.

Description

technical field [0001] The invention relates to an induction heating device, in particular to an induction heating device with a temperature compensation function. Background technique [0002] In order to achieve surface hard and internal toughness, some large workpieces are usually heat-treated by quenching, so that the surface of the workpiece is austenitized at a certain depth and the core of the workpiece is still kept below the temperature of the transformation point, so that the workpiece can obtain effective hardness. and hardened layer depth. Generally, two heat treatment methods, differential temperature quenching and induction quenching, can be used. Among them, there are two methods for differential temperature quenching. One is to heat the entire surface area first, then spray quench the roll body, and then temper at low temperature; the other method is to heat in a differential temperature furnace, then spray quench the roll body, and then temper at lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/10C21D11/00
CPCY02P10/25
Inventor 周月明金小礼吴存有
Owner BAOSHAN IRON & STEEL CO LTD
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