CN1032783C - Electric heating film - Google Patents
Electric heating film Download PDFInfo
- Publication number
- CN1032783C CN1032783C CN 91112670 CN91112670A CN1032783C CN 1032783 C CN1032783 C CN 1032783C CN 91112670 CN91112670 CN 91112670 CN 91112670 A CN91112670 A CN 91112670A CN 1032783 C CN1032783 C CN 1032783C
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- CN
- China
- Prior art keywords
- electric heating
- heating film
- weight
- base
- boratex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to a novel electric heating film which is composed of insulating bottom materials, an electric heating film and a conductive electrode, wherein the insulating bottom materials are composed of silicone lacquer, and the electric heating film is composed of graphite powder and various metal oxides. The existing baking step at high temperature is omitted by using the present invention, and the present invention is formed in one step at a certain proportion and used widely on various electric heating appliances.
Description
The invention belongs to the electric heating film technology, and relevant with insulation, aseptic technic.
At present, the employed electric heating utensil heating film of people generally can adopt vacuum plating or method for pyrolysis to prepare, vacuum coating apparatus complex process, pyrolysis temperature then need be in the pyrolytic coating more than 450 ℃, film thickness is difficult to control, process repeatability is poor, and Chinese patent CN87103537 is existing metal oxide film, and its arts demand toasts under 400-500 ℃ temperature.
The object of the invention is, develop a kind of electric heating film directly coated on heating vessel, only need be in oven dry below 110 ℃, drying time is to get final product in 20-40 minute, and its technology is easy, and cost is low, thereby saved roasting procedure at high temperature, the heat that electric heating film sent is directly absorbed by heated object in the mode of conduction, and heat transfer soon, homogeneous heating, heat efficiency height, long service life, energy-saving effect be remarkable, at aspects such as industry, agricultural, national defence, scientific researches broad application prospect arranged.
Electric heating film of the present invention is made up of conductor filler, base-material, colloid; The conductor filler has graphite powder, its proportioning of carborundum to be: 10-50% (weight %); Base-material has zinc oxide, manganese oxide, its proportioning of Boratex to be: zinc oxide 10-25%, manganese oxide are that 35-60%, Boratex are 0.5-5% (weight %); Its proportioning of colloid waterglass is the 5-30% (weight %) of base-material weight; Insulating bottom layer is made up of silicon cave lacquer, and catalyst adopts organic cobalt, Organic Manganese, organotin, its catalyst ratio 1-8%, silicone 92-99% (weight %); The insulating corrosion layer adds mica powder by the silicone lacquer and forms, and the addition of mica powder is that 10-20%, silicone lacquer are 80-90% (weight %); This Manufacturing Method of Products use colloid waterglass with in conductor filler graphite powder, the carborundum any one, base-material zinc oxide, manganese oxide, Boratex furnishing slurry, row construction again.Electric heating film of the present invention directly coated only need be 110 ℃ of oven dry down on heating vessel, and drying time is 20-40 minute.The insulating corrosion layer can be dry at normal temperatures, and conductive electrode adopts copper mesh and metal-containing material, as required by changing electric heating film resistance, can make the electric heating products that is applicable to low pressure, direct current or exchanges various power supplies simultaneously.
Electric heating film application of the present invention is extensive; can be prepared into the Electric radiant Heating Film of different shape with the shape of heating vessel according to different needs; also can be processed into various electric heating elements; as electric heating piece, electrothermal tube, electric hot plate etc.; use the formed electric heating product of the present invention simultaneously; can apply any type of electrical shock protection safety measure to electric heating body, coat the electric shock-prevention safety coating.
Embodiment 1:
Coat electric heating film a flat bottom beaker bottom, 3 parts of filmogens (base-material zinc oxide, manganese oxide, Boratex mixture) are added 1 part of graphite powder waterglass furnishing slurry, with 60 purpose silk screen printing Electric radiant Heating Film, add two copper mesh electrodes, room temperature was placed 1-2 hour then, dried 16-30 minute down at 60-110 ℃, on electric heating film, be coated with one deck silicone insulating corrosion lacquer again and get final product.
Embodiment 2:
Bottom at enamel vessel, coat the electric heating film of required shape, its proportioning is that 5 parts of filmogens (base-material zinc oxide, manganese oxide, Boratex mixture) are added 1 part of graphite powder, slurry with the brushing of waterglass furnishing, after evenly coating, put into two copper net electrodes, placed 1-2 hour in room temperature, dried 10-30 minute down at 60-110 ℃, SC insulating corrosion layer gets final product.
Embodiment 3:
In a garden shape iron pipe, at first be coated with one deck silicone varnished insulation layer, coat electric heating film then, its proportioning adds 1 part of graphite powder with 2 parts of filmogens (base-material zinc oxide, manganese oxide, Boratex mixture), with waterglass furnishing slurry, four electric heating film bands on the inside pipe wall blade coating, two copper mesh buss are placed at two ends at streaking tube, brush silicone insulating corrosion layer then, placed 1-2 hour in room temperature, oven dry got final product in 10-30 minute under 60-110 ℃.
Claims (2)
1, a kind of novel electric heating film, it is electric heating film, insulating bottom layer, insulating corrosion layer three part composition, it is characterized in that: electric heating film is made up of conductor filler, base-material, colloid, and the conductor filler has graphite powder, carborundum, and its proportioning is: 10-50% (weight %); Base-material has zinc oxide, manganese oxide, Boratex, and its proportioning is: zinc oxide 10-25%, manganese oxide are that 35-60%, Boratex are 0.5-5%; Its proportioning of colloid waterglass is the 5-30% (weight %) of base-material weight; Insulating bottom layer is made up of silicon cave lacquer, and catalyst adopts organic cobalt, Organic Manganese, organotin, its catalyst ratio 1-8%, silicone 92-99% (weight %); The insulating corrosion layer adds mica powder by the silicone lacquer and forms, and the addition of mica powder is that 10-20%, silicone lacquer are 80-90% (weight %).
2, electric heating film manufacture method according to claim 1 is characterized in that, use colloid waterglass with in conductor filler graphite powder, the carborundum any one, base-material zinc oxide, manganese oxide, Boratex furnishing slurry, row construction again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91112670 CN1032783C (en) | 1991-12-29 | 1991-12-29 | Electric heating film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91112670 CN1032783C (en) | 1991-12-29 | 1991-12-29 | Electric heating film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1074074A CN1074074A (en) | 1993-07-07 |
| CN1032783C true CN1032783C (en) | 1996-09-11 |
Family
ID=4911010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91112670 Expired - Fee Related CN1032783C (en) | 1991-12-29 | 1991-12-29 | Electric heating film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032783C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455146C (en) * | 2005-09-20 | 2009-01-21 | 中国江南航天工业集团江南工业贸易公司 | Carbon material electrical heating membrane and preparing method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0919120A1 (en) * | 1997-11-20 | 1999-06-02 | AB7 Industries SA | Intermediate aquarium support sheet combining the functions of heating and of absorbing mechanical stresses |
| CN102821495A (en) * | 2012-08-17 | 2012-12-12 | 慈溪市圣唯诺电器有限公司 | Polytetrafluoroethylene (PTFE) base electrothermal thick film and manufacturing method thereof |
| TW201441562A (en) * | 2013-04-19 | 2014-11-01 | Cmc Magnetics Corp | Electrothermal element |
-
1991
- 1991-12-29 CN CN 91112670 patent/CN1032783C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455146C (en) * | 2005-09-20 | 2009-01-21 | 中国江南航天工业集团江南工业贸易公司 | Carbon material electrical heating membrane and preparing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1074074A (en) | 1993-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |