Environment-friendly energy-saving graphene semiconductor ceramic high-temperature high-power-density electrothermal material

A graphene semiconductor and electrothermal material technology, applied in heating element materials and other directions, can solve the problems of high temperature resistance, insufficient heating temperature, low reliability in use, etc., and achieve good durability, no fire hazard, and safety in use. high effect

Pending Publication Date: 2022-07-01
西安红元节能材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heating temperature of insulating coatings in the prior art is not high enough to meet the needs of higher heating temperatures; the durability of heating is not long enough, resulting in low reliability in use; the power density of heating is not large enough to meet the output of large heat flow; it cannot withstand Large thermal shock, prone to cracking and aging; odorous and non-environmentally friendly materials, environmental protection, health preservation, healing and food heating cannot pass the test; organic polymer materials used as adhesives are not environmentally friendly, not resistant to high temperatures, and may cause fire Hidden danger

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Coat the required graphene semiconductor ceramic slurry on the required substrate, and dry it naturally for 4-24 hours or at 40-60 for 1-6 hours.

[0045] Use graphene semiconductor ceramic slurry to stick and cut the composite carbon electrode strip with air holes on the heating coating, and dry it naturally for 4-24 hours or at 40-60 for 1-6 hours.

[0046] The parts completed in the previous step are baked and ceramicized in a baking furnace. The baking process is as follows: the heating rate is 5-20 degrees per minute, and the temperature is kept at 60 ° C for 10-30 minutes, at 90 ° C for 10-30 minutes, and at 160 ° C for 10-30 minutes. °C for 10-30 minutes, 220 °C for 10-30 minutes, and 360 °C for 30-60 minutes. Then shut down and cool down to room temperature naturally.

Embodiment 2

[0048] Silver electrodes are printed as required on the substrate where the coating is to be heated.

[0049] 2) Place the finished product in the sintering furnace. The sintering process is as follows: the heating rate is 5-20 degrees per minute, and the temperature is kept at 60 °C for 10-30 minutes, at 90 °C for 10-30 minutes, and at 160 °C for 10-30 minutes. 30 minutes, 10-30 minutes at 220°C, 10-30 minutes at 360°C, 10-30 minutes at 460°C, 10-30 minutes at 560°C, 10-30 minutes at 660°C, at, Keep at 760°C for 10-30 minutes, at 860°C for 10-30 minutes, then turn off and cool down to room temperature naturally.

[0050] 3) On the basis of the completion of the previous step, coat the prepared graphene semiconductor ceramic slurry as required, and dry it naturally for 4-24 hours or at 40-60 for 1-6 hours.

[0051] 4) Bake and ceramicize the parts completed in the previous step in a baking furnace. The baking process is as follows: the heating rate is 5-20 degrees per minute,...

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PUM

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Abstract

The invention discloses an environment-friendly energy-saving graphene semiconductor ceramic high-temperature high-power-density electric heating material which is prepared by the following steps: firstly, preparing a ceramic base solution, then preparing a graphene negative ion composite modified ceramic base solution, and preparing graphene semiconductor ceramic slurry through the graphene negative ion composite modified ceramic base solution. The highest heating temperature of the insulating material prepared by adopting a scientific ratio and a special method is 1260 DEG C, and the heating temperature can be determined according to the requirements, so that more use requirements can be met; the maximum power density is 50W / cm < 2 >, and the power density can be manufactured according to actual use requirements; the product is resistant to heat shock and does not crack at 800 DEG C; the semiconductor ceramic material is not aged or degraded and has good use durability; the material is non-combustible, the use safety is high, fire hazards are avoided, and the application and popularization value is achieved.

Description

technical field [0001] The invention relates to an insulating material, in particular to an environment-friendly and energy-saving graphene semiconductor ceramic high temperature and high power density electrothermal material. Background technique [0002] Insulation paste can be divided into: (1) Impregnated insulating varnish, used for impregnation and insulation treatment of windings; (2) Enameled wire varnish, used as insulating layer of wires; (3) Silicon steel sheet paint, used as insulation of silicon steel sheet (4) Covering insulating varnish, used as a protective layer for windings etc. that have been impregnated with insulation treatment to prevent mechanical damage or facilitate assembly; (5) Adhesive insulating varnish, used to bond insulation such as mica, laminates, etc. Materials; (6) Special insulating paints, such as paints for insulating layers of resistors, capacitors and potentiometers. The heating temperature of the insulating coatings in the prior art...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H05B3/14
CPCH05B3/143
Inventor李哲元李妙刘亚东侯宁任英许德辉鞠国良李铁虎
Owner西安红元节能材料有限公司