Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of induction coil and preparation method thereof

An induction coil and coil technology, which is applied to coil device, induction heating, coating and other directions, can solve the problems of easy carbonization of insulating slats, short circuit between coil turns, inability to heat, etc., so as to achieve a simple and easy preparation method and avoid hitting. Fire, the effect of improving production efficiency

Active Publication Date: 2019-05-21
GRIMAT ENG INST CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the alloy is smelted at high temperature (smelting copper alloy generally requires 1200°C to 1500°C), due to the high temperature at this time, on the one hand, the resin substrate insulating slats are prone to carbonization, and on the other hand, the surface of the copper coil is also easily deposited by the volatile metal vapor phase. And attached, what's more, the surface of the fastened small copper rod of the insulating slat is also easy to deposit metal ash and the deposits on the insulating slat are integrated, resulting in a short circuit between turns of the coil and causing a fire phenomenon
If the ignition problem occurs, the induction heating electric field will be disturbed, which will cause problems such as failure to heat

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of induction coil and preparation method thereof
  • A kind of induction coil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A layer of aluminum oxide: titanium oxide: silicon dioxide = (60-90): (5-35): 5 (mass ratio) protective layer is prepared on the surface of the copper tube coil and the copper short rod welded on it, with a thickness of 0.5μm~100μm, alumina, titanium oxide and silica sols were prepared respectively, and then the three were mixed evenly in proportion, and the volatile matter was removed by heating at 80°C under an oxidizing atmosphere to form a sol, which was coated on the copper tube coil and The surface of the short copper rod welded on it is then dried at 500°C for 1 hour. A layer of glass fiber cloth tape soaked in epoxy resin glue is wound on it, the support plate of the coil is made of alumina (99 porcelain), the tightening nut is made of boron nitride material, and the whole induction coil is made of high temperature resistant epoxy resin glue for overall Brush the package with a thickness of 1mm. The induction coil is used for medium-frequency heating to melt co...

Embodiment 2

[0043]A layer of aluminum oxide: titanium oxide: silicon dioxide = (60-90): (5-35): 5 (mass ratio) protective layer is prepared on the surface of the copper tube coil and the copper short rod welded on it, with a thickness of 0.5μm~100μm, alumina, titanium oxide and silica sols were prepared respectively, and then the three were mixed evenly in proportion, and the volatile matter was removed by heating at 80°C under an oxidizing atmosphere to form a sol, which was coated on the copper tube coil and The surface of the short copper rod welded on it is then dried at 500°C for 1 hour. It is wound with 3 layers of glass fiber cloth tape impregnated with epoxy resin glue. The supporting strip of the coil is made of alumina (99 porcelain), the tightening nut is made of boron nitride material, and the whole coil is brushed with high temperature resistant epoxy resin glue. Coating package, brushing thickness is 1mm. The induction coil is used for medium-frequency heating to melt coppe...

Embodiment 3

[0045] A layer of aluminum oxide: titanium oxide: silicon dioxide = (60-90): (5-35): 5 (mass ratio) protective layer is prepared on the surface of the copper tube coil and the copper short rod welded on it, with a thickness of 0.5μm~100μm, alumina, titanium oxide and silica sols were prepared respectively, and then the three were mixed evenly in proportion, and the volatile matter was removed by heating at 80°C under an oxidizing atmosphere to form a sol, which was coated on the copper tube coil and The surface of the short copper rod welded on it is then dried at 500°C for 1 hour. It is wound with 3 layers of glass fiber cloth tape impregnated with epoxy resin glue. The supporting strip of the coil is made of alumina (99 porcelain), the tightening nut is made of boron nitride material, and the whole coil is brushed with high temperature resistant epoxy resin glue. Coating package, brushing thickness is 5mm. The induction coil is used for medium-frequency heating to melt copp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of a fabrication method for an induction heating device, in particular relates to an induction coil and a fabrication method thereof. Red copper rods are welded on a red copper tube coil of the induction coil, insulation ceramic layers cover the red copper tube coil and the surfaces of the red copper rods, more than one layer of fiber glass fiber cotton belts are wound around the insulation ceramic layers and are immersed with an impregnation adhesive, support plate strips of the induction coil adopt ceramic materials, tightening nuts adopt ceramic materials, the exterior of whole induction coil is integrally coated and wrapped by a high-temperature insulation adhesive, and the red copper rods are connected with the support plate strips by the tightening nuts in order to fix the red copper tube coil. The fabrication method of the induction coil is simple and practical, a large amount of volatile metal steam can be effectively prevented from being deposited when the induction coil is used in the metal steam volatilizing in a high temperature, so that the problems of ignition caused by short circuit among turns and the like are avoided, the service lifetime of the coil is prolonged, the failure rate of the device is reduced, the labor intensity is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of induction heating equipment manufacturing methods, and in particular relates to an induction coil and a manufacturing method thereof. Background technique [0002] Induction heating technology has been widely used in metal smelting equipment in recent years due to its advantages of fast heating speed, convenient operation, and energy saving. Common induction coils generally use bare copper tubes, and epoxy resin laminates or bakelite boards are generally used as insulating slats between coil turns for support. [0003] In the smelting process of low-temperature metals, the existing induction coils can fully meet the smelting requirements. This is because the metal smelting temperature is low (such as aluminum alloy is generally lower than 1000 ℃), even if there is volatile metal volatilization, it is much less than the high temperature, and its adhesion to the water-cooled copper induction coil and the s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/36C23C4/10C23C20/08
Inventor 范叶明张习敏韩媛媛郭宏张永忠
Owner GRIMAT ENG INST CO LTD