Electromagnetic heating micro forming method and apparatus thereof

A micro-forming and electromagnetic technology, applied in the direction of induction heating device, induction heating, induction heating control, etc., can solve the problems of non-magnetic workpiece heating, limitation, heating application range, etc., and achieve simple structure, low use and maintenance costs, Safe and reliable effect of control circuit

Active Publication Date: 2011-05-04
GUANGDONG XINXIU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this device is that it cannot heat non-magnetic workpieces, and it cannot heat workpieces that cannot directly conduct heat transfer (such as non-magnetic workpieces in tensile experiments). The application range is limited to a certain extent.

Method used

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  • Electromagnetic heating micro forming method and apparatus thereof
  • Electromagnetic heating micro forming method and apparatus thereof
  • Electromagnetic heating micro forming method and apparatus thereof

Examples

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Effect test

Embodiment Construction

[0018] Combine below figure 1 with figure 2 Describe the specific method for microplastic forming and electromagnetic heating method proposed by the present invention.

[0019] Such as figure 1 As shown, the cross-sectional view of the microplastic forming device for magnetic workpieces that cannot be heat-transferred through direct contact between objects. Workpiece 1 is a magnetic workpiece that cannot conduct heat transfer through direct contact between objects. The clamps in the device are connected and suspended above the magnetic core 3 wound with the electromagnetic induction coil 4, the magnetic core 3 wound with the electromagnetic induction coil 4 is arranged in the groove formed by the shielding magnetic block 5, and the shielding magnetic block 5 is arranged outside There is an insulating heat shield 6; the temperature detection element 2 is arranged on the upper surface of the exposed magnetic core 3; the electromagnetic induction coil 4 will generate an altern...

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Abstract

The invention relates to an electromagnetic heating method during the formation process of the superfine drawing of a magnetic workpiece and a control device thereof. The electromagnetic heating superfine forming method comprises the steps that the magnetic workpiece is suspended on a magnetic core, the magnetic core is positioned in alternating magnetic field generated by an alternating current,the magnetic force line in the magnetic field generates a loop through the magnetic workpiece and forms a plurality of vortex induced currents inside the magnetic workpiece, the vortex induced current realizes the conversion from electric energy to heat energy through overcoming the flowing resistance of the magnetic workpiece so as to ensure the temperature of the magnetic workpiece to be rapidly increased, the magnetic workpiece is heated, the heating temperature is inspected through a temperature inspecting element arranged on the magnetic core, and signals are input to a magnetic heating temperature control device so as to control the magnetic heating temperature. The device for realizing the method is composed of the magnetic core, an electromagnetic induction coil, a temperature inspecting element, a screening magnetic block, an insulating board and the magnetic heating temperature control device. The invention has the characteristics of simple structure, low cost for operation and maintenance, secure and reliable control circuit and the like.

Description

technical field [0001] The invention relates to the field of plastic forming, in particular to an electromagnetic heating method and its control device in the micro-stretch forming process of a magnetic workpiece that cannot be heated by heat transfer. It is mainly used in the field of micro-plastic forming of ultra-thin plates, and also It is suitable for the field of macroscopic plastic forming. Using the method and the control device can not only safely and quickly heat tiny workpieces, but also change the heating temperature in time according to the requirements of forming performance, so as to improve the plastic forming performance. Background of the invention [0002] With the rapid development of MEMS, the market demand for micro-devices is increasing, and at the same time new requirements are put forward for the processing technology and processing quality of micro-devices. With the shrinking of the size of micro-devices, factors such as grain size and body-to-surf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C35/12H05B6/06H05B6/10
Inventor 陆广华王匀许帧英袁国定
Owner GUANGDONG XINXIU NEW MATERIAL CO LTD
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