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A kind of preparation method of stainless steel substrate thick film heating element

A heating element, stainless steel technology, applied in electrical elements, electric heating devices, ohmic resistance heating and other directions, can solve the problems of low production efficiency, high energy consumption, high raw material requirements, improve production efficiency, improve qualification rate, reduce energy consumption Effect

Active Publication Date: 2021-05-25
湖南特发新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for preparing a stainless steel thick-film heating element, which is used to overcome the shortcomings of the prior art, such as high requirements for raw materials, low production efficiency, and high energy consumption, which can reduce the requirements of products for raw materials, shorten the firing time, and improve production efficiency and greatly reduce energy consumption

Method used

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  • A kind of preparation method of stainless steel substrate thick film heating element
  • A kind of preparation method of stainless steel substrate thick film heating element
  • A kind of preparation method of stainless steel substrate thick film heating element

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Please refer to figure 1 , the invention provides a method for preparing a thick film heating element with a stainless steel substrate, comprising the following steps:

[0021] Step S1, using a screen printing process to print insulating dielectric slurry on a flat substrate with a preset size, drying and sintering for 20 to 25 minutes according to a preset temperature curve, so that the insulating dielectric slurry forms an insulating layer;

[0022] Step S2, printing a heating resistor slurry on the insulating layer by using a screen printing process, drying and sintering for 20 to 25 minutes according to a preset temperature curve, so that the heating resistor slurry forms a resistance layer;

[0023] Step S3, using a screen printing process to print a conductor paste on the insulating layer, drying and sintering for 20 to 25 minutes according to a preset temperature curve, so that the conductor paste forms a conductor layer;

[0024] Step S4, printing a covering pa...

Embodiment 2

[0027] Said step 1 includes:

[0028] Step 11, using screen printing technology to print insulating dielectric slurry on a flat substrate with a preset size, drying and sintering for 20 to 25 minutes according to a preset temperature curve, so that the insulating dielectric slurry forms a first layer of insulation Floor;

[0029] Step 12: Print insulating dielectric slurry on the first insulating layer by screen printing process, dry and sinter according to a preset temperature curve for 20 to 25 minutes, so that the insulating dielectric slurry forms a second insulating layer Floor;

[0030] Step 13: Print insulating dielectric slurry on the second insulating layer by screen printing process, dry and sinter according to a preset temperature curve for 20 to 25 minutes, so that the insulating dielectric slurry forms a third insulating layer Floor;

[0031] Step 14: Print insulating dielectric slurry on the third insulating layer by screen printing process, dry and sinter acc...

Embodiment 3

[0047] The resistance layer comprises a plurality of strip-shaped resistance strips, and the resistance strips are arranged parallel to each other;

[0048] The conductor layer is made of silver, and is in the shape of a line and distributed on the insulating layer at intervals. One end of each conductor line is connected to the resistance band, and the other end is exposed outside the packaging layer for connecting with A conductive wire is soldered; said conductive wire is made of silver or copper;

[0049] Also includes:

[0050] Step 7, placing the connecting end of the conductive wire on the connecting end of the conductive wire;

[0051] Step 8, coating the nano-silver solder paste on the connecting end of the conductive wire and the connecting end of the conductive wire;

[0052] Step 9, heating the nano-silver solder paste by means of a rapid heating device to complete the welding of the conductive wire and the conductive wire. The rapid heating equipment includes one...

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Abstract

The invention discloses a method for preparing a thick-film heating element with a stainless steel substrate, which comprises the following steps: printing insulating medium slurry on a flat substrate with a preset size by a screen printing process, drying and sintering according to a preset temperature curve for 20-20 ~ For 25 minutes, the insulating dielectric slurry is formed into an insulating layer; the heating resistor slurry is printed on the insulating layer by a screen printing process, and dried and sintered for 20 to 25 minutes according to a preset temperature curve to make the heating The resistance paste forms a resistance layer; the conductor paste is printed on the insulating layer by a screen printing process, dried and sintered for 20 to 25 minutes according to a preset temperature curve, so that the conductor paste forms a conductor layer; The covering paste is printed on the insulating layer, the resistance layer and the conductor layer by a screen printing process, dried and sintered for 20-25 minutes according to a preset temperature curve, so that the covering paste forms a covering layer. This solution well solves the problems of low production efficiency and high energy consumption, greatly improves production efficiency and saves electric energy.

Description

technical field [0001] The invention relates to the technical field of thick film heating, in particular to a method for preparing a stainless steel base thick film heating element. Background technique [0002] In the existing thick-film heating body, each working layer printed on the surface of the heat pipe is consolidated by high-temperature sintering process, and the sintering time of each layer is about 60-80 minutes, of which heating at 150°C for about 20-30 minutes, and heating at 850°C ℃ heating for about 30 to 40 minutes. The traditional sintering process has higher requirements on the quality of the stainless steel substrate raw materials of the thick film heating element (such as the content of carbon, manganese and other elements), and also has relatively high requirements on the sintering time and temperature control. If any link of raw materials, sintering time and sintering temperature does not meet the standard or is not well controlled, the interfacial bon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/26
CPCH05B3/262
Inventor 不公告发明人
Owner 湖南特发新材料有限公司
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