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Carbon-hertz film and application thereof

A technology of carbon hertzian film and insulating substrate, which is applied in carbon hertzian film and its application field, can solve the problems of narrow application area, and achieve the effect of wide application area, good material stability, and favorable promotion

Active Publication Date: 2021-12-17
厦门海洋芯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Inorganic resistance thick films usually use glass and ceramics as insulating substrates, but the inorganic resistance thick film formulations disclosed in the prior art are usually only applicable to one type or a specific type of substrate, for example, the authorization number is CN103476155B, the name It is a Chinese invention patent of a mica heating substrate coated with an inorganic thick film and its preparation method and heating components, the authorization number is CN104893372B, and the Chinese invention patent of a high-temperature-resistant insulating coating for a mirror plate is a targeted formula , the application area is narrow, therefore, it is of positive significance to research and develop a carbon Hertzian film with a wide application area

Method used

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  • Carbon-hertz film and application thereof
  • Carbon-hertz film and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In this example, an artificial mica board (the reference linear expansion coefficient is about 50-80*10^-7K^-1) is used as an insulating substrate, and a convective heating element with double-sided heat dissipation is prepared according to the carbon Hertzian film formula provided by the present invention.

[0035] In this embodiment, the preparation materials of the carbon Hertzian film include, in parts by weight,

[0036] Lead oxide (PbO) 26.0 parts, lithium oxide (Li 2O) 29.8 parts, zinc oxide (ZnO) 18.0 parts, natural flake graphite powder (C) 28 parts, boron oxide (B 2 o 3 ) 0.9 parts, chromium oxide (Cr 2 o 3 ) 0.03 parts, iron oxide (Fe 2 o 3 )0.08 parts, vanadium oxide (V 2 o 5 ) 0.01 part.

[0037] The preparation process of the carbon Hertzian film and the convection heating element with double-sided heat dissipation includes the following:

[0038] (1) Prepare relevant chemical raw materials according to the formula of the carbon Hertzian film prov...

Embodiment 2

[0045] In this embodiment, a glass-ceramic plate (with a linear expansion coefficient of 7-11*10^-7K^-1) is used as an insulating substrate, and a single-sided radiation infrared element is prepared according to the carbon Hertzian film formula provided by the present invention.

[0046] In this embodiment, the preparation materials of the carbon Hertzian film include, in parts by weight,

[0047] Lead oxide (PbO) 23.0 parts, lithium oxide (Li 2 O) 27.8 parts, zinc oxide (ZnO) 16.5 parts, natural flake graphite powder (C) 35 parts, boron oxide (B 2 o 3 ) 0.3 parts, chromium oxide (Cr 2 o 3 ) 0.02 parts, iron oxide (Fe 2 o 3 ) 0.06 parts, and, vanadium oxide (V 2 o 5 )0.01 copies;

[0048] The carbon Hertzian film preparation and single-sided radiation infrared element preparation process include the following:

[0049] (1) Prepare relevant chemical raw materials according to the formula of the carbon Hertzian film provided in Example 2, and make a mixed dry powder thr...

Embodiment 3

[0056] In this embodiment, a tempered glass plate (tempered glass, adopting ordinary soda-lime flat glass (coefficient of linear expansion is 90-100*10^-7K^-1) is heat-treated to form internal stress, so that its heat resistance is improved ) is an insulating substrate, and a low-temperature single-sided radiation infrared element is prepared according to the carbon Hertzian film formula provided by the present invention.

[0057] In this embodiment, the preparation materials of the carbon Hertzian film include:

[0058] Lead oxide (PbO) 31.0 parts, lithium oxide (Li 2 O) 35.0 parts, zinc oxide (ZnO) 26.0 parts, natural flake graphite powder (C) 23 parts, boron oxide (B 2 o 3 ) 1.6 parts, chromium oxide (Cr 2 o 3 ) 0.06 parts, iron oxide (Fe 2 o 3 ) 0.10 parts, and vanadium oxide (V 2 o 5 ) 0 copies.

[0059] The carbon hertz film preparation and the preparation process of the low-temperature single-sided radiation infrared element include the following:

[0060] (1)...

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Abstract

The invention discloses a carbon-hertz film and application thereof. Lead oxide, lithium oxide, zinc oxide and graphite are combined according to a specific proportion to form a formula, lead oxide, lithium oxide and zinc oxide can be used for fluxing, infiltrating and sintering to form a film, the binding force of the carbon hertz film and the surface of an insulating substrate is ensured, and graphite is used as a conductive material. According to the formula of the carbon-hertz film provided by the invention, good thermal matching between the carbon-hertz ceramic film and the insulating substrate can be realized by adjusting the component proportion, microscopic cracking of the carbon-hertz film caused by internal stress and interface stress is avoided in cold and hot circulation, and the carbon-hertz film can adapt to substrates made of different materials, is wide in application range and is beneficial to popularization. The carbon-hertz film is suitable for being applied to preparation of electric heating elements and infrared radiation elements.

Description

technical field [0001] The invention relates to the field of resistance materials, in particular to a carbon Hertzian film and its application. Background technique [0002] Carbon Hertzian film, also known as inorganic resistance thick film or inorganic thick film resistance coating, uses graphite and other high-temperature-resistant conductive materials as resistance powder, uses glass-like material powder as binder, and then mixes it into an organic carrier to make it film and sintered. Due to its fast heating speed and good high temperature resistance, it can be widely used in military, aerospace, industrial and agricultural and civilian fields, such as anti-fog and snow prevention of ships, radar, communications, aerospace, and TV monitoring devices; operating tables, For heating of film material melting, ultra-thin still, etc.; for heating of vehicle reflectors, cushions, door locks, floors, etc.; for water heaters, drying, heating of houses / buildings, heating of roof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/01C04B35/622H05B3/14
CPCC04B35/01C04B35/528C04B35/622C04B35/62218H05B3/145C04B2235/3296C04B2235/3284C04B2235/3409C04B2235/3241C04B2235/3272C04B2235/3239C04B2235/425C04B2235/3203C04B2235/5436C04B2235/656C04B2235/6567Y02B30/00
Inventor 董宇
Owner 厦门海洋芯科技有限公司
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