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Apparatus and method for heating work pieces

A technology of heating device and heating method, applied in induction heating device, electric furnace heating, induction heating and other directions, can solve problems such as heating temperature difference and limitation

Inactive Publication Date: 2005-09-14
YOSHINO KOSAKUJO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the workpiece size is large, in order to heat the entire workpiece at one time, it is necessary to increase the workpiece coil and increase the output power. However, increasing the overall size is limited by equipment
In addition, if there is only one output source and the shape of the workpiece is not uniform like a tube, there is a disadvantage that the heating temperature is likely to vary.

Method used

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  • Apparatus and method for heating work pieces
  • Apparatus and method for heating work pieces
  • Apparatus and method for heating work pieces

Examples

Experimental program
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Effect test

Embodiment Construction

[0067] The following is based on Figure 1 to Figure 12 , the workpiece heating device 1 according to the first embodiment of the present invention will be described.

[0068] Reference numeral 3 denotes a high-frequency induction heating unit including a pair of workpiece coils 5 and 7 provided to face each other.

[0069] elephant figure 2 , image 3 As shown, the pair of workpiece coils 5 and 7 are composed of two helical parts formed by winding a single copper tube 9 made of a conductive material. Since the eddy currents cancel each other in the middle part of the spiral part, the output power is reduced, so the helical coil (P) is narrower than the peripheral part.

[0070] The two helical parts forming the workpiece coils 5 and 7 are connected by the middle part, and the two ends of the workpiece coils are cut and removed, and connected with a movable energized cooling hose 15 .

[0071] If formed as above, due to figure 2 As shown, the workpiece coils 5, 7 are co...

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Abstract

A high frequency induction-heating device 3 of the apparatus 1 for heating work includes a pair of opposite work coils accommodated within the coil casings 17 and 19 respectively. The casings 17 and 19 can be displaced in a unit by a motor provided under the device. Thus, the distance between the pair of work coils, and the distance between the work (W) and each work coil can be adjusted. The apparatus includes a plurality of heating devices 3 to which high frequency power sources are provided respectively. The apparatus and method for heating of a work with the apparatus is capable of treating a plurality of works (W) continuously under controlled conditions on work coil shapes and positions depending on the size and / or the shape of the works (W).

Description

technical field [0001] The invention relates to a workpiece heating device and a workpiece heating method, which can evenly heat workpieces with large dimensions and complex shapes, and can prevent overburning and crucible burning. Background technique [0002] In the case of high-frequency induction heating, fine temperature adjustment is difficult, so in the past, it was only used to heat small workpieces one by one, or to heat workpieces with uniform shapes such as pipes. [0003] However, high-frequency induction heating heats the workpiece itself. Therefore, when using high-frequency induction heating to bake a coated product treated with powder coating, it can be heated from the coating on the side that is in contact with the workpiece. In this way, the coating film is firmly fixed on the workpiece. In addition, there is an advantage that oil and the like can be dissipated without degreasing treatment, and since external heating is not required, drying dome equipment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/44B05D1/06B05D3/02C21D1/42F26B3/347F26B15/14F27D11/06F27D21/00H05B6/06H05B6/10H05B6/14
CPCB05D3/0281B05D1/06F26B3/347H05B6/14F26B15/14B05D2401/32B05C9/14
Inventor 吉野孝四郎吉野昌宏吉野泰广
Owner YOSHINO KOSAKUJO
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