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Laminated ceramic electrical-heating element

A heating element and ceramic technology, applied in the field of layered ceramic heating elements, can solve the problems of power attenuation, high cost, high resistance wire temperature, etc., and achieve the effects of high thermal conductivity and electrical conductivity, good elastic properties, and excellent high-temperature strength

Inactive Publication Date: 2017-06-13
HANGZHOU GELASIKANG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing electric heating sheets in the field of medium and low temperature electric heating have the following disadvantages. The electric heating tube or electric heating sheet using electric heating alloy wire has a small heat dissipation area, a thick insulating layer, a high and uneven temperature of the resistance wire, and local overheating easily. The heat is easy to scale, and the volume is large, the thermal inertia is large, the response speed of the temperature sensing element is relatively slow, the efficiency is relatively low, and the life is short due to the excessive concentration of heat; the high-power thick-film heating element manufactured by thick-film technology has heat resistance Insufficient impact performance, poor reliability, and high cost make it impossible to provide practical products that can be effectively combined with austenitic stainless steel; PTC heating elements suffer from power attenuation

Method used

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  • Laminated ceramic electrical-heating element

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Embodiment 1

[0058] Embodiment 1, with reference to attached figure 1 .

[0059] What the present embodiment provides is disc-type laminar ceramic heater (nominal diameter 60mm, voltage 220 volts, power 600 watts), and it comprises austenitic·ferritic type (2205) duplex stainless steel plate 21, glass-ceramic substrate Multi-phase composite ceramics 22-1, 22-2, 22-3, 22-4 insulation layer, insulation layer with metal inner frame 23-1, metal outer frame 23-2, austenitic ferrite stainless steel plate 21 It has a flanging 21-1, and the flanging 21-1 constitutes the outer frame at the outermost periphery, and a cermet electric heating layer 24 is combined between the BAS-based glass-ceramic-based multi-phase composite ceramic insulating layer 22-2 and 22-3, The electrothermal layer 24 is combined with a nickel alloy electrode 25 .

[0060] The production process is briefly described as follows:

[0061] The electric heating layer resistance paste is composed of nickel-chromium-aluminum-yttr...

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Abstract

The invention provides a laminated ceramic electrical-heating element. Laminated ceramic combines with a metal member and a heat generating element through sintering and contains in-situ crystallized glass ceramic. The laminated ceramic is manufactured by co-sintering multiple layers in a pressure state. Compared with a green body of the laminated ceramic, the lamination thickness direction shrinks, and the area of the plane perpendicular to the lamination thickness direction does not shrink. The laminated ceramic electrical-heating element has the advantages that the laminated ceramic electrical-heating element is strong in heat impact resisting capability, safe, hygienic, uniform and small in thermal inertia and is light, thin and quick, and a temperature sensing element is quick to react and high in efficiency.

Description

technical field [0001] The invention relates to a layered ceramic electric heating element. Background technique [0002] The electric heating materials used in the existing electric heating elements mainly include the electric heating alloy wire of the electric heating tube, the thick film resistance of the thick film electric heating element, the tungsten molybdenum high temperature heating material and the PTC heating element used in the MCH electric heating element, etc.; the insulating materials used mainly include: Magnesium oxide powder for electric heating tubes, mica sheets for electric heating sheets, glass-ceramic or glass glaze for thick-film electric heating elements, alumina ceramic plates for MCH electric heating elements, etc. [0003] The existing electric heating sheets in the field of medium and low temperature electric heating have the following disadvantages. The electric heating tube or electric heating sheet using electric heating alloy wire has a smal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/10
CPCH05B3/10
Inventor 张鸿鸣沈稚鸣
Owner HANGZHOU GELASIKANG TECH CO LTD
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