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Processing technology of water-cooling-free induction heater

An induction heater and processing technology, applied in induction heating, coil devices, etc., can solve the problems of water cooling system increasing engineering cost, reducing power utilization rate, consuming water resources, etc., to improve anti-oxidation effect and reduce engineering cost , the effect of saving water resources

Inactive Publication Date: 2021-11-09
洛阳申耐电力设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water cooling has the following disadvantages: it takes away a lot of heat, reduces the utilization rate of electric energy, requires a water cooling system to increase the project cost, consumes water resources, and may cause safety accidents if water leakage occurs

Method used

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  • Processing technology of water-cooling-free induction heater
  • Processing technology of water-cooling-free induction heater
  • Processing technology of water-cooling-free induction heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like figure 1 Shown: a water-free cooling induction heater, including an anti-oxidation induction heating coil 101, the anti-oxidation induction heating coil 101 includes an induction heating coil 1, the surface of the induction heating coil 1 is provided with an anti-oxidation coating 10, the The anti-oxidation induction heating coil 101 is wrapped with a refractory layer inclusion 2 , and the outer surface of the refractory layer inclusion 2 is provided with a thermal insulation layer 3 .

[0037] Wherein, the induction heating coil 1 adopts a helical shape of a solid copper strip.

[0038] Use the above-mentioned waterless induction heater to make a tubular heating device. This tubular heater or heating furnace can be used to heat metal workpieces or blanks such as rotating bodies, such as heating and quenching of bearing rings and piston pins. Cylindrical Heating of forging blanks. In specific use, the metal piece can be heated by passing through the heating zone ...

Embodiment 2

[0040] A water-free cooling induction heater, comprising an anti-oxidation induction heating coil 101, the anti-oxidation induction heating coil 101 includes an induction heating coil 1, the surface of the induction heating coil 1 is provided with an anti-oxidation coating 10, and the anti-oxidation The induction heating coil 101 is wrapped with a refractory layer inclusion 2 , and the outer surface of the refractory layer inclusion 2 is provided with a thermal insulation layer 3 .

[0041] Wherein, the induction heating coil 1 is a spiral shape made of a copper tube, and the two ends of the spiral induction heating coil 1 made of a copper tube are sealed by welding.

Embodiment 3

[0043] The processing technology of water-free induction heater in embodiment 1,2 is as follows:

[0044] (1) Degreasing the surface of the induction heating coil 1 first, and then uniformly sandblasting the surface;

[0045] (2) Prepare the glaze slurry by the ratio of enamel powder: water=100:45, adopt the spraying method to evenly spray the enamel slurry on the surface of the pretreated induction heating coil 1, the thickness of spraying is 0.15mm, and then bake Dry, and bake in an electric furnace at 850°C to form an enamel coating 12 with anti-oxidation effect, that is, to make an anti-oxidation induction heating coil 101;

[0046] (3) Pouring with 800# refractory cement and 0-3mm alumina hollow balls to form refractory layer inclusions 2 outside the anti-oxidation induction heating coil 101, wherein the ratio of 800# refractory cement to alumina hollow balls is 3:7 ;

[0047] (4) The outer surface of the refractory layer inclusion 2 is wrapped with a 10mm insulating fe...

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PUM

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Abstract

The invention provides a water-cooling-free induction heater, and belongs to the technical field of induction heaters. The water-cooling-free induction heater comprises an anti-oxidation induction heating coil, the anti-oxidation induction heating coil comprises an induction heating coil, and the surface of the induction heating coil is provided with an anti-oxidation coating; the anti-oxidation induction heating coil is wrapped by a fireproof layer wrapping body, and a heat preservation layer is arranged on the outer surface of the fireproof layer wrapping body. The invention relates to a processing technology of the water-cooling-free induction heater. The processing technology comprises the following steps of (1) pre-treating the surface of a spiral induction heating coil; (2) spraying glaze slip on the surface of the pre-treated induction heating coil, drying and roasting to form an anti-oxidation coating; (3) taking refractory cement, adding an aggregate, and pouring to form a refractory layer wrapping body outside the anti-oxidation induction heating coil; and (4) wrapping the outer surface of the fireproof layer wrapping body with the heat preservation layer. According to the present invention, the anti-oxidation effect of the induction heating coil can be improved, the heat efficiency is improved, the heat loss is reduced, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of induction heaters, in particular to a processing technology of a waterless induction heater. Background technique [0002] When the alternating current passes through the conductor, an alternating magnetic field is generated around the conductor. Putting the metal in the alternating magnetic field will generate an eddy current in the metal. The Joule heating effect of the eddy current causes the metal to be heated. This heating method is called induction heating. Induction heating has the characteristics of fast heating speed and high thermal efficiency. This conductor used for electrification is called an induction heater, or simply an inductor. In order to reduce the Joule heating effect generated when the current passes through the inductor, pure copper with relatively small resistivity is commonly used to make the inductor. Induction heating is often used in metal heat treatment heating, metal forgi...

Claims

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Application Information

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IPC IPC(8): H05B6/36C04B35/66
CPCH05B6/36C04B35/66C04B2235/3217
Inventor 郭延强王顺兴郭志强
Owner 洛阳申耐电力设备有限公司