Electric-heating film and manufacturing method thereof

A technology of electric heating film and tin tetrachloride, applied in the direction of electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problems of poor temperature resistance, limited application range, fast power attenuation, etc., and achieve good physical and chemical properties and practical voltage The effect of wide range and simple manufacturing process
CN1529534AInactive Publication Date: 2004-09-15杨金林
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
杨金林
Publication Date
2004-09-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

Mixing, stirring butter of tin, titanium trichloride, antimonous chloride, calcium dichloride, isopropyl alcohol, ethanol and water evenly makes solid be dissolved; then, cooling the said liquid to normal temperature obtains treating liquid of electric heating film to be used; spraying the said treating liquid on substrate so as to form semiconductor conductance film that is half-finished product of electric heating film. Surfaces of two ends of half-finished product coated by paste of silver oxide are torrefied in electrode furnace so as to produce finished product. Advantages of the invention are: simple technique, large power, high working temperature, PTC and far infrared radiation functions, moisture-proof, acid and alkali proof, no pollution, and service life more than 5000 hr.
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Description

Technical field:

[0001] The invention relates to an electric heating film and a manufacturing method thereof, belonging to the technical field of heating elements. Background technique:

[0002] The electric heating film heating element of the present invention is a new surface heating technology developed and formed in the past ten years. Because it is surface heating, its electrothermal conversion rate is greater than 90%, its heating speed is fast, and it has the function of far infrared emission heating. Before the present invention was made, in the prior art, the electrothermal film was usually integrated by spraying tin chloride on the base material and heating at high temperature. The electrothermal film with this structure cannot withstand high temperature heating, and its working temperature can only be around 300°C; its application range is limited, and it can only be used for radiation heating; it has poor temperature resistance, fast power attenuation, easy agin...

Claims

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