Electrothermal film and manufacturing method thereof
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A manufacturing method and technology of electrothermal film, which are applied in the direction of coating resistance materials, heating element materials, and resistors with lead-out terminals, etc., can solve problems such as low efficiency, and achieve the effects of fast heating, stable film layer, and good physical and chemical properties.
Active Publication Date: 2012-10-31
GUANGDONG HALLSMART INTELLIGENCE TECH CORP LTD
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During the manufacturing process of the electric heating film, the electric heating film treatment liquid needs to be sprayed many times, and the efficiency is low.
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[0018] The first embodiment of the present invention is as follows:
[0019] 1. Take (each component by mass percentage) tin tetrachloride 10, titanium tetrachloride 3, nickel tetrachloride 3, titanium trichloride 3, ferric chloride 21, antimony trichloride 0.8, dichloride Calcium 0.5, potassium chloride 2, cadmium chloride 4, tin dioxide 5, tin tetroxide 6, hydrofluoric acid 7, boric acid 1, ethanol 6, isopropanol 6, inorganic water 21.7 Put into a mixing heater and mix and heat to 75°C, stir evenly to dissolve all the solid raw materials, and filter the solution to obtain an electrothermal film treatment solution when the solution is cooled to -1°C.
[0020] 2. Take a heating furnace, the furnace core is made of silicon carbide, the heating power is 13KW, the furnace temperature is 700 ℃, the quartz glass (electric heating film carrier) is put into the furnace and heated to 700 ℃, and the electric heating is heated by the negative pressure spray method. The film is coated o...
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Abstract
The invention relates to an electrothermal film and a manufacturing method thereof, belonging to the technical field of semiconductor heating. The electrothermal film is mainly prepared by adopting stannic chloride, titanium tetrachloride, stannic chloride, titanium trichloride, ferric chloride, antimony trichloride, calcium chloride, potassium chloride, cadmium chloride, stannic dioxide, stannictetroxide, hydrofluoric acid, boric acid, ethanol, isopropyl alcohol and inorganic water. By adopting the above formula, the mixture is mixed, stirred and heated to prepare into electrothermal film treating fluid, a semi-finished product of the electrothermal film is obtained by spraying the electrothermal film treating fluid at negative pressure on the electrothermal film carrier, and then silver oxide slurry is coated on the semi-finished product of the electrothermal film for baking to form a finished product of the electrothermal film. The electrothermal film has reasonable proportion andsimple manufacturing process, can be manufactured into various electrothermal film heating devices, has a working temperature capable of being up to 500 DEG C, and has wider application range. The electrothermal film of the invention also has the function of far infrared radiation, can play a role of physical therapy and health care to human body, and can help improve the quality and output of agricultural products.
Description
【Technical field】 [0001] The invention relates to an electrothermal film and a manufacturing method thereof, belonging to the technical field of semiconductor heating. 【Background technique】 [0002] As a surface heating element, the electric heating film heating element has an electric heating efficiency greater than 90%, a fast heating speed, and a far-infrared radiation heating function. A patent for invention with a document number of CN1529534C discloses an electric heating film and a manufacturing method thereof. The composition ratio (mass percentage) of the electric heating film is: A: tin tetrachloride, 40-50; B: titanium trichloride, 30 ~40; C: antimony trichloride, 0.1-0.3; D: calcium dichloride, 0.1-0.3; E: isopropanol, 2-3; F: ethanol, 10-13; G: water, 2-5 ; Its maximum working temperature is only 450 ℃, and its application range is narrow. During the manufacturing process of the electrothermal film, the electrothermal film treatment liquid needs to be sprayed...
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