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Electrothermal conversion body coating formula and application method

An electrothermal conversion and coating technology, applied in the direction of heating element materials, etc., can solve the problems of operators and environmental pollution, and achieve the effects of good synchronization, high insulation, and small starting current

Active Publication Date: 2012-12-26
华夏万众创新(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the harmful gases of the free membrane liquid mixture will be discharged, causing direct pollution to operators and the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0060] For the electrothermal converter coating formula in Examples 1-4, its main solid raw material weight ratio is shown in the following table:

[0061] Example

Zinc chloride

tin chloride

graphite

copper carbonate

boric acid

ammonium fluoride

Fluoboric acid

Potassium dioxide silica

1

40％

24％

18％

6％

4％

4％

2％

2％

2

45％

22％

15％

5％

6％

2％

2.5％

2.5％

3

48％

20％

16％

5％

5％

3％

2％

1％

4

50％

24％

15％

3％

2％

3％

1％

2％

[0062]Liquid raw material adopts dehydrated alcohol and terpineol in the coating, and the addition of dehydrated alcohol is 30% of each group total solid raw material weight listed in the above table, and the addition of terpineol is 5% of total solid raw material weight. That is, 30 g of absolute ethanol a...

example 1

[0078] Quartz electric heating tubes for rapid heating water heaters, external dimensions: diameter 14mm, total length 220mm, according to the calculation method for making electrothermal converters for heating liquids, the maximum power that can be processed by components of this size:

[0079] W=S×1(S-surface area)

[0080] That is (3.14×0.7×0.7×20)×20=615.4w

[0081] The dose to be sprayed L=W×1, that is, 615.4×0.5=307g

[0082] Then remove the oil stains on the surface of the member tubes with acid or lye, after cleaning and drying, take the coating solution calculated in the dosage in Examples 1-4, all spray on the surface of the quartz member, place in a heating furnace, and the temperature Rise to 400-500°C and keep it warm for 20 minutes, then take it out and let it cool naturally.

[0083] Paint the cooled components with silver paste to make electrodes, then dry and solidify in a furnace at 200°C-400°C, and after cooling, lead out the power wiring by mechanical con...

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PUM

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Abstract

The invention relates to an electrothermal conversion body coating formulation and an application method. The electrothermal conversion body coating formulation mainly comprises the following raw materials by weight percent: 35-50 percent of zinc chloride, 20-30 percent of tin chloride, 13-25 percent of graphite, 3-10 percent of copper carbonate, 2-6 percent of boric acid, 2-7 percent of ammonium fluoride, 1-4 percent of fluoboric acid and 1-4 percent of potassium dioxide silicon. The electrothermal conversion body coating formulation disclosed by the invention can be used for manufacturing various electrothermal conversion body heating elements on insulating materials in different shapes, such as silicon wafer electrothermal plates, mica electrothermal pieces, borosilicate glass electrothermal tubes, ceramic electrothermal tubes and the like, and can be widely applied to products and equipment, such as household appliances, industrial appliances and the like. The electrothermal conversion body coating formulation has the advantages of high electrothermal conversion rate, long service life, high heating power, low attenuation, simplicity in manufacturing and little pollution, and is suitable to be popularized and applied.

Description

technical field [0001] The invention relates to a coating formula and a using method, in particular to a coating formula of an electrothermal converter and a using method thereof. Background technique [0002] At present, there are two main types of electrothermal coating technology. One is the electrothermal film heating element made of graphite carbon fiber as the main material. It has good oxidation resistance, stable thermal power and simple processing technology. However, due to the poor thermal power performance of the carbon element itself, it cannot meet the requirements of high power and is easy to fall off, so its application field and scope are greatly limited. The other is to spray semiconductors, high chlorides and reducing agents on the surface of the insulator at high temperature to form an electrothermal film, which can realize a high-power electric heating body, high electrothermal conversion efficiency, no open flame for heat generation, and small thermal i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/14
Inventor 张丽曼杨葆华
Owner 华夏万众创新(北京)科技有限公司
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