CN1214081C - Energy-saving type inorganic electrothermal coating material - Google Patents
Energy-saving type inorganic electrothermal coating material Download PDFInfo
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- CN1214081C CN1214081C CN 02133389 CN02133389A CN1214081C CN 1214081 C CN1214081 C CN 1214081C CN 02133389 CN02133389 CN 02133389 CN 02133389 A CN02133389 A CN 02133389A CN 1214081 C CN1214081 C CN 1214081C
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- electric
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Abstract
The present invention relates to energy saving type inorganic electrothermal paint, which belongs to electrothermal paint, particularly to inorganic electrothermal paint. The present invention is compounded from electrothermal paint and matching electrical insulating paint, wherein the electrothermal paint is compounded from 20 to 40% of graphite powder, 8 to 10% of auxiliary agent and basic material as the rest; the electrical insulating paint is compounded from 30 to 40% of mica powder, 8 to 10% of auxiliary agent and basic material as the rest. The paint has the advantages of good film forming performance, adhesiveness and water resistance, and low manufacture cost. The paint can be suitable for the voltage of 220 v, and 36 v to 12 v.
Description
Technical field
The invention belongs to thermo electric material, particularly inorganic electric-heating coatings.
Technical background
Traditional electric heater is that nichrome wire and refractory substrate, insulating material combine, and can produce naked light after this electric heater energising, uses very dangerous in the particular surroundings that has; The local pyrexia temperature height of nichrome wire, but total heating area is little, it is long to desire to reach the time that the temperature of setting needs on the whole, so thermo-efficiency is low, power consumption is many; The structure of strip heater is complicated, and work-ing life is shorter, so its cost height, security is relatively poor.In recent years having occurred on the market with toluene is solvent, by organism and noble metal powder is the organic electric heating coating that raw material is made, it perhaps is the electric-heating coatings of base-material preparation with the water glass, though such electric-heating coatings has had progress than the hot-plate of nichrome wire, but its film-forming properties, snappiness and tack are all undesirable, and the operating voltage range of adaptation is also narrower.
Summary of the invention
Technical problem to be solved by this invention provides a kind of energy-saving type inorganic electrothermal coating material, and simple in structure with the electric heating plate of its preparation, cost is low, has good film-forming properties, snappiness and tack.
Solving the scheme that technical problem of the present invention adopts is: this coating is made up of electric-heating coatings and electrical insulating coating matching used with it.Electric-heating coatings is by 20%～40% Graphite Powder 99,8%～10% auxiliary agent, and surplus is that base-material is formed; Electrical insulating coating is by 30%～40% mica powder, 8%～10% auxiliary agent, and surplus is that base-material is formed.The auxiliary agent that electric-heating coatings adopts is cupric oxide and potassiumchromate, perhaps cupric oxide and zinc oxide, and base-material adopts phosphoric acid, aluminium hydroxide, magnesium oxide and/or R661 vinylformic acid (Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing introduces the product of American technology); The auxiliary agent of electrical insulating coating is cupric oxide and potassiumchromate, and base-material adopts the calcium oxide and the silicon oxide of phosphoric acid, aluminium hydroxide, magnesium oxide and trace.Graphite Powder 99 in the electric-heating coatings adopts granularity less than 10 microns powder.
Such scheme of the present invention is the electric-heating coatings that proposes, and its prescription is more reasonable, and cost is also lower.At first the water-soluble paste with this electrical insulating coating is sprayed on resistant to elevated temperatures metal, the porcelain enamel substrate equably, through baking-curing, can and substrate between obtain good binding, even be subjected to higher temperature, also be not easy to come off, and the effect that can also reach good electrical isolation effect simultaneously and transmit heat with thin coating.Electric-heating coatings is sprayed on the electrical insulating coating, baking-curing, electric-heating coatings just are attached on metal, the porcelain enamel substrate securely again.This coating is all water miscible, and is easy to solidify through baking and metal, enamel plate, guarantees easily that therefore sprayed coating is even, and tack is strong, the technical requirements that film forming is good, thus also become the electrical heating element of different capacity with regard to suitable for making.
Embodiment
Embodiment 1:
Preparation electrical insulating coating: by following weight percent preparation, mica powder 30%, phosphoric acid 38%, potassiumchromate 4%, cupric oxide 4%, aluminium hydroxide 12%, magnesium oxide 12%, add calcium oxide trace, silicon oxide trace in addition, add entry again, allotment evenly, be ground to granularity less than 10 microns with colloidal mill, make electrical insulating coating.On the even metallize of this coating, porcelain enamel substrate, baking-curing can reach electric insulating effect, and gets ready for follow-up the combination with electric-heating coatings.
Preparation electric-heating coatings: by following weight percent preparation, high purity graphite powder 32%, potassiumchromate 4%, phosphoric acid 30%, aluminium hydroxide 20%, cupric oxide 4%, magnesium oxide 10%, it is an amount of to add water, stirs, be ground to granularity less than 10 microns with colloidal mill, make electric-heating coatings.This coating evenly is sprayed in advance on the metal handled through above-mentioned insulation layer, the porcelain enamel substrate, and baking-curing is promptly made hot plate.Pack into the housing of sealing is filled heat preserving and insulating material, just can make operating voltage and be the well heater of the charged hot dope layer of 220 volts and 36～12 volts.
Embodiment 2:
Preparation electrical insulating coating: by following weight percent preparation, mica powder 30%, phosphoric acid 38%, potassiumchromate 4%, cupric oxide 4%, aluminium hydroxide 12%, magnesium oxide 12%, add calcium oxide trace, silicon oxide trace in addition, add entry again, allotment evenly, be ground to granularity less than 10 microns with colloidal mill, make electrical insulating coating.On the even metallize of this coating, porcelain enamel substrate, baking-curing can reach electric insulating effect, and gets ready for follow-up the combination with electric-heating coatings.
Preparation electric-heating coatings: by following weight percent preparation, high purity graphite powder 30%, R661 vinylformic acid 56% (Dongfang Chemical Plant, Beijing, The East Chemical Plant,Beijing introduces the product of American technology), cupric oxide powder 10%, zinc oxide 4%, it is an amount of to add water, stir, be ground to granularity less than 10 microns with colloidal mill, make electric-heating coatings.This coating evenly is sprayed in advance on the metal handled through above-mentioned insulation layer, the porcelain enamel substrate, and baking-curing is promptly made hot plate.The housing of packing into and sealing is filled heat preserving and insulating material, just can make the well heater that operating voltage is 36～12 volts a charged hot dope layer.
Claims (4)
1, a kind of energy-saving type inorganic electrothermal coating material, it is characterized in that forming by electric-heating coatings and electrical insulating coating matching used with it, (1) electric-heating coatings is by 20%～40% Graphite Powder 99,8%～10% auxiliary agent, surplus is that base-material is formed, auxiliary agent is cupric oxide and potassiumchromate, perhaps cupric oxide and zinc oxide, base-material adopts phosphoric acid, aluminium hydroxide, magnesium oxide and/or R661 vinylformic acid; (2) electrical insulating coating is by 30%～40% mica powder, 8%～10% auxiliary agent, and surplus is that base-material is formed, and auxiliary agent is cupric oxide and potassiumchromate, and base-material adopts the calcium oxide and the silicon oxide of phosphoric acid, aluminium hydroxide, magnesium oxide and trace.
2, by the described energy-saving type inorganic electrothermal coating material of claim 1, it is characterized in that the prescription of electric-heating coatings is, Graphite Powder 99 32%, potassiumchromate 4%, phosphoric acid 30%, aluminium hydroxide 20%, cupric oxide 4%, magnesium oxide 10%.
3, by the described energy-saving type inorganic electrothermal coating material of claim 1, it is characterized in that the prescription of electric-heating coatings is, Graphite Powder 99 30%, R661 vinylformic acid 56%, zinc oxide 4%, cupric oxide 10%.
4,, it is characterized in that Graphite Powder 99 in the electric-heating coatings adopts granularity less than 10 microns powder by claim 2 or 3 described energy-saving type inorganic electrothermal coating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02133389 CN1214081C (en) | 2002-06-27 | 2002-06-27 | Energy-saving type inorganic electrothermal coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02133389 CN1214081C (en) | 2002-06-27 | 2002-06-27 | Energy-saving type inorganic electrothermal coating material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1465630A CN1465630A (en) | 2004-01-07 |
| CN1214081C true CN1214081C (en) | 2005-08-10 |
Family
ID=34145547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02133389 Expired - Fee Related CN1214081C (en) | 2002-06-27 | 2002-06-27 | Energy-saving type inorganic electrothermal coating material |
Country Status (1)
| Country | Link |
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| CN (1) | CN1214081C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086330B (en) * | 2011-01-21 | 2013-05-15 | 中国人民解放军63983部队 | Electro-thermal coating |
| CN102260423B (en) * | 2011-07-18 | 2013-01-30 | 苏州吉人漆业有限公司 | Alcohol-soluble phosphate high temperature resistant long-acting anti-corrosive paint and preparation method thereof |
| CN103773239A (en) * | 2014-01-20 | 2014-05-07 | 南通钰成光电科技有限公司 | Electrothermal coating for preparing electric hot plate and preparation method thereof |
| CN103937298A (en) * | 2014-03-25 | 2014-07-23 | 东方电气集团东方汽轮机有限公司 | Inorganic heat dissipation paint and preparation method thereof |
-
2002
- 2002-06-27 CN CN 02133389 patent/CN1214081C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1465630A (en) | 2004-01-07 |
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Granted publication date: 20050810 Termination date: 20110627 |