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Induction heating apparatus and induction heating method thereof

An induction heating device and a heating device technology, applied in induction heating and other directions, can solve the problems of inability to meet industrial needs, single temperature distribution, uncontrollable, etc., and achieve the effects of convenient operation and maintenance, good product quality, and small maintenance workload.

Active Publication Date: 2013-09-18
JIANGXI LIANOVATION SUPERCONDUCTOR APPL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the above-mentioned existing schemes mentions the method of generating gradients, and its induction heating technology does not have temperature control links and methods. The temperature distribution inside the heated workpiece is single and uncontrollable, and this temperature distribution often cannot meet the requirements. actual industrial demand

Method used

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  • Induction heating apparatus and induction heating method thereof
  • Induction heating apparatus and induction heating method thereof
  • Induction heating apparatus and induction heating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] This embodiment provides an induction heating device, including a heating device and a rotary drive device, the spindle 2 is arranged in the heating device through the rotary drive device, and the rotary drive device drives the spindle 2 to rotate and cut the magnetic force lines 5 formed in the heating device, The heating device includes an iron core mechanism 1 with an air gap 4, and a superconducting coil that interacts with the iron core mechanism 1 to form a static magnetic field, and the spindle 2 is movably arranged in the air gap 4 through a rotary drive middle.

[0063] Further, the spindle 2 is rotated along the air gap axis 3 as a central axis by a rotary drive device.

[0064] Further, the iron core mechanism 1 includes two iron cores, and the air gap 4 is formed by placing the two iron cores at equal distances from each other.

[0065] Further, the distance between the two iron cores can be adjusted.

[0066] In this embodiment, the rotational speed of th...

Embodiment 2

[0074] Embodiment 2 is the second induction heating method of the induction heating device provided in Embodiment 1.

[0075] The induction heating method that the present embodiment provides, comprises the following steps:

[0076] Step 1, firstly, a static magnetic field 5 distributed according to a pre-designed law is formed in the air gap through the iron core mechanism 1 and the superconducting coil;

[0077] Step 2, put a spindle 2 of a certain specification in the static magnetic field, and the spindle is driven to rotate by the rotating drive device, thereby heating the spindle;

[0078] Step 3, while the spindle 2 is rotating, the heated spindle is moved 6 along the axis of the air gap, so as to adjust the distribution of the heating power density in the axial direction of the spindle, and complete the induction heating of the spindle satisfying the requirement of the axial temperature gradient.

[0079] Further, in the step 3, the movement of the spindle along the a...

Embodiment 3

[0082] This embodiment is a modification example of Embodiment 1.

[0083] On the basis of embodiment 1, this embodiment provides another induction heating device. The difference between this embodiment and embodiment 1 is:

[0084] The iron core mechanism includes two iron cores, and the air gap is formed by placing the two iron cores at different positions corresponding to different distances;

[0085] Different positions corresponding to different distances between the two iron cores are realized by moving the relative positions of the two iron cores or by changing the thickness of the iron cores;

[0086] The distance between the two iron cores can be adjusted.

[0087] Further, the change of the thickness of the iron core is a linear change or a step change.

[0088] The induction heating method of the induction heating device provided by the present embodiment comprises the following steps:

[0089] Step 1, pre-adjust the width of the air gap;

[0090] Step 2, formin...

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Abstract

The invention discloses an induction heating apparatus, comprising a heating device and a rotary driving device. A spindle is arranged in the heating device through the rotary driving device and is driven by the rotary driving device to rotate, so as to cut magnetic lines of force formed in the heating device; the heating device comprises an iron core mechanism provided with an air gap and a superconductive coil interacted with the iron core mechanism to form a static magnetic field, and the spindle is movably arranged in the air gap through the rotary driving device; and the invention also discloses an induction heating method thereof. According to the induction heating apparatus and induction heating method thereof, various control methods are adopted to realize the condition that the temperature of a heated workpiece can be regulated and controlled in the two dimensions of radial and axial directions, so that a heated tool can realize various temperature gradients to adapt to different application requirements.

Description

technical field [0001] The invention relates to the technical field of induction heating, in particular to an induction heating device and an induction heating method thereof. Background technique [0002] Induction heating is a heating method based on the principle of Faraday-Lenz electromagnetic induction, which has the advantages of fast, clean, convenient surface and local heating, and energy saving in most cases. [0003] Since the 1920s, foreign countries have begun to introduce AC induction heating using electromagnetic eddy current heating, and it has also been gradually adopted in China in recent years. However, traditional non-ferrous metal heat treatment mostly adopts direct coal-fired gas heating technology, and a considerable number of domestic aluminum profile processing enterprises still stay at the level of coal-fired gas heating. The working principle of the traditional AC induction heating method is: let the AC pass through a coil wound by a water-cooled c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/02
Inventor 洪智勇李柱永王亚伟杨杰金之俭
Owner JIANGXI LIANOVATION SUPERCONDUCTOR APPL CO LTD
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