CN1014762B - Binding type electrically-heating body and making technique thereof - Google Patents
Binding type electrically-heating body and making technique thereofInfo
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- CN1014762B CN1014762B CN 89100683 CN89100683A CN1014762B CN 1014762 B CN1014762 B CN 1014762B CN 89100683 CN89100683 CN 89100683 CN 89100683 A CN89100683 A CN 89100683A CN 1014762 B CN1014762 B CN 1014762B
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Abstract
The present invention relates to an adhesive electric heating body and a manufacture technique thereof, particularly to an improvement of a manufacture technique of electrothermal membranes, electrothermal blocks and insulation layers. The present invention is composed of a substrate, one layer or more than one layer of insulation layers, one layer or more than one layer of electrothermal membranes or electrothermal blocks and electric conduction electrodes. The present invention is characterized in that the insulation layers are made of adhesion type insulation composite body materials, and the electrothermal membranes or the electrothermal blocks are made of adhesion type electric conduction composite body materials. The electric heating body can be dried and solidified at a low temperature, a sintering circuit is avoided, and the technology is greatly simplified. Products have the advantages of stable quality, high yield, excellent electrical specification and low energy consumption, and the present invention is suitable for manufacturing various types of electrothermal electric appliance, electrothermal equipment and electrothermal devices.
Description
The present invention relates to the electric heating body technology, and the improvement of the manufacture method of Electric radiant Heating Film, electric heating piece and insulating barrier.
At present in electric heating appliance, adopt Electric radiant Heating Film, electric heating piece as electric heating body, because of its heat efficiency obtains extensive use far above the metal electric heating silk, existing electrothermal film technology, the one, tin ash class Electric radiant Heating Film, the employing heat spraying method is made, and technological requirement and manufacturing cost are higher, and great majority only are applied to the low temperature low power range; The 2nd, the disclosed slug type electrothermal film technology of Liu Dazhong (CN87103537A), propose a kind of by ground, the single or multiple lift insulating bottom layer, single or multiple lift Electric radiant Heating Film and conductive electrode are formed, the low-melting glass that its Electric radiant Heating Film is made up of multiple oxide (intermediate) is made carrier, the superfine graphite powder is that main conducting particles is made electric conducting material, must be through high temperature sintering ability film forming and fixed with insulation ground or insulating bottom layer, its sintering temperature generally needs about 520 ℃, and (the disclosure material claims that the sintering temperature of this Electric radiant Heating Film is 350 ℃～650 ℃, in fact being lower than 500 ℃ is to be difficult to the sintering film forming), and confirm according to document and test, graphite will begin oxidation reaction about 450 ℃, thereby this Electric radiant Heating Film will cause the graphite vigorous oxidation before film forming, sintering process complexity not only, and the sintering process condition is very big to the influence of Electric radiant Heating Film resistance, be difficult for producing stay-in-grade product, the shortcoming of this Electric radiant Heating Film also is non-refractory, can only bear 300～350 ℃ at short notice, the long-term work temperature requirement is no more than 180 ℃, and it is not high to bear power density yet.In addition; this Electric radiant Heating Film can only be behind sintering could top electrode; can not carry out resistance to semi-finished product in manufacture process measures; also be difficult to control the stable of product quality; because this Electric radiant Heating Film and binders for electrodes are different materials; thereby " arcing " phenomenon takes place and destroys Electric radiant Heating Film in the two Contact Boundary of electrode and Electric radiant Heating Film in regular meeting, this Electric radiant Heating Film also since easily generation power decay influence durability of products.The insulating bottom layer manufacturing technology that the disclosure document provides, also the intermediate of forming by multiple oxide as carrier add insulating packing at high temperature sintering form, general sintering temperature also needs more than 520 ℃, produce actual proof, sintering temperature is above 500 ℃, not only increased the difficulty of technology, and will be subjected to certain restriction some Products Development (as sugared ceramic products).
Also because preparation electrothermal film material and insulating layer material have used volatile diluent (being alcohols in a large number), when sintering, the alcohols volatile emission will pollute atmospheric environment this technology, and cause the Electric radiant Heating Film structure more loose.Influence the Electric radiant Heating Film quality.
The present invention overcomes the drawback of above-mentioned electric heating body product to propose novel electric heating body and the manufacture method thereof that a kind of adhesion type insulating barrier and binding type electrically hotting mask or electric heating piece constitute, this electric heating body can solidify at a lower temperature and forms, thereby improve product quality stability greatly, and manufacturing process, energy efficient have been simplified.
Purpose of the present invention reaches by following technique measures: electric heating body comprises ground, one or more layers insulating barrier, one or more layers Electric radiant Heating Film or electric heating piece, conductive electrode, its insulating barrier be surface of bottom material insulating bottom layer or (with) interlayer insulating film of multilayer Electric radiant Heating Film or electric heating piece or (with) Electric radiant Heating Film or electric heating piece surface insulation sealant, said insulating barrier by alkali metal silicate salt inorganic bond carrier or (with) phosphoric acid salt inorganic bond agent carrier and the compound insulated compound body material of forming of insulating particle constitute through solidifying.Said Electric radiant Heating Film or electric heating piece then are made of through curing the conduction complex material, this conduction complex material by alkali metal silicate salt inorganic bond carrier or (with) phosphoric acid salt inorganic bond agent carrier and conducting particles is compound forms, wherein can add an amount of curing agent or (with) filler.The condition of cure of the conduction complex material of the insulated compound body material of said formation insulating barrier and formation Electric radiant Heating Film or electric heating piece is: 50 ℃-450 ℃ of curing temperature scopes, curing time, scope was 30 minutes to 10 hours.For raising the efficiency with energy-conservation, optimum condition of cure is: because of changing 100 ℃-300 ℃ of temperature ranges, curing time, scope was 30 minutes-120 minutes.Can form the design of various electric heating bodies with technical scheme of the present invention, level is arranged can following form: a, insulation ground (as insulation grounds such as pottery, glass) adds Electric radiant Heating Film or the electric heating piece adds surface insulation sealant (as Fig. 1); B, ground add that insulating bottom layer adds Electric radiant Heating Film or the electric heating piece adds surface insulation sealant (as Fig. 2), also can not establish surface insulation sealant (as Fig. 3, Fig. 4), Electric radiant Heating Film or electric heating piece can be established one or more layers as required, and the interlayer of Electric radiant Heating Film or electric heating piece can be provided with insulating barrier.Electric radiant Heating Film or electric heating piece are to the bonding force of inorganic bond in adhering to of insulation ground or the insulating barrier main dependence conduction complex material, equally, insulating barrier adheres to ground or Electric radiant Heating Film or electric heating piece, main also is the bonding force that relies on inorganic bond in the insulated compound body material, thereby insulating barrier of the present invention and Electric radiant Heating Film or electric heating piece all belong to adhesion type.
Conductive electrode of the present invention can directly be bonded on Electric radiant Heating Film or the electric heating piece as binding agent with the conduction complex material, because this binding agent and Electric radiant Heating Film or electric heating piece are commaterials, helps making conductive electrode and Electric radiant Heating Film or electric heating piece to form integrated.
The said alkali metal silicate salt of the present invention adhesive carrier, the said phosphoric acid salt adhesive carrier of the one pack system of available neutral water glass, sodium silicate, KP1, rubidium waterglass, lithium silicate or multicomponent compound can be acid phosphate, metaphosphate, pyrophosphate or directly by phosphoric acid and metal oxide, halide, hydroxide, alkaline salt, silicate, boratory reactant, can adopt the one pack system or the multi-component compound of above-mentioned material.
The conducting particles component that the present invention is conducted electricity in the complex material can adopt alloyed powder, the one pack system or the multi-component mixture of conduction organo-metallic compound powder, metal composite powder, metal and non-metal compound powder, metal and compound complex powder, conductive non-metals powder, conductive non-metals compound powder, conductive metallic compound powder.The particle diameter of conducting particles can be 2 μ～0.5mm, and optimum particle diameter is 3 μ～0.05mm.Said alloyed powder can be Nickel Aluminium Alloy Powder, said conduction organo-metallic compound powder can be carbonyl nickel powder, said metal and non-metal compound powder can be nickel coated graphite powder, said metal and compound complex powder can be nickel coated aluminium oxide powder, nickel bag diatomite in powder, nickel bag zirconia powder, nickel bag tungsten carbide powder, nickel bag calcium fluoride powder, nickel bag molybdenum disulphide powder, said conductive non-metals powder is carbon black powder, graphite powder, heavily-doped semiconductor silica flour, said conductive non-metals compound powder is a carborundum powder, and said conductive metallic compound powder is a tungsten carbide powder.
Said conducting particles also can adopt conducting staple fiber, comprise carbon chopped fiber or (with) the graphite short fiber or (with) carborundum brief fiber, the length of short fiber can be 0.2～20mm, diameter can be 5～200 μ, preferably adopting length is 3～5mm, and diameter is the conducting staple fiber of 7～20 μ.
The curing agent of conduction complex material can adopt oxidate powder, comprise silicon dioxide powder, magnesia powder, calcium oxide powder, brown iron oxide, oxide powder and zinc, titanium oxide powder, chromium oxide powder, alumina powder etc., also can adopt aluminium hydrate powder, fluosilicate powder, borate powder, phosphate powder etc.Can adopt the one pack system or the multicomponent mixture of above-mentioned material.The filler of conduction complex material can adopt the one pack system or the multicomponent mixture of mica powder, mullite powder, wollastonite in powder, talcum powder, blanc fixe etc.
The insulating particle of insulated compound body material of the present invention can adopt the insulation oxide powder, comprises lead oxide powder, brown iron oxide, zirconia powder, magnesia powder, calcium oxide powder, titanium oxide powder, barium monoxide powder, alumina powder, chromium oxide powder, silicon dioxide powder etc., also can adopt mica powder, wollastonite in powder, talcum powder, mullite powder, clay powder, blanc fixe, the one pack system that can adopt above-mentioned material or multicomponent mixture.
Determining of each component content of conduction complex material, the main conductance of considering material, adhesion strength, curing rate thread factor, according to product power requirement and the material of selecting for use, the proportion of composing of each component can be selected in a big way, general content ratio scope following (percentage by weight, component total amount are 100%):
Inorganic bond agent carrier 15～70%;
Conducting particles 8～75%;
Surplus be curing agent or (with) filler.
According to experiment, the optimum content of conducting particles is 12～35%(percentage by weight).
In insulated compound body material, the inorganic bond vector contg can account for 10～90%, and optimum content is 20～45%, and surplus is insulating particle (percentage by weight).
Manufacture method of the present invention comprises following technological process and process conditions:
(1) preparation conduction complex material and insulated compound body material, said conduction complex material by alkali metal silicate salt inorganic bond carrier or (with) phosphoric acid salt inorganic bond agent carrier and conducting particles compound form and add therein an amount of curing agent or (with) filler, said insulated compound body material by alkali metal silicate salt inorganic bond carrier or (with) phosphoric acid salt inorganic bond agent carrier and insulating particle is compound forms;
(2) with insulated compound body material after forming insulating barrier with methods such as spraying or brushing or blade coating or roller coating or printings on the surface of bottom material with its airing or baking and curing, the thickness of insulating barrier can be 0.05-5mm;
(3) on the insulation surface of bottom material, forming Electric radiant Heating Film or electric heating piece with the conduction complex material on the insulating barrier or directly with methods such as spraying or brushing or blade coating or roller coating or silk screen printings, then with its airing or baking and curing, the thickness of Electric radiant Heating Film can be 0.04-0.45mm, optimum thickness is 0.1-0.25mm, and the thickness of electric heating piece can be 0.45-4.0mm.
(4) for the situation of making multilayer Electric radiant Heating Film or electric heating piece electric heating body, the process that continues (2), (3) set by step is with a layer insulating, one deck Electric radiant Heating Film or electric heating piece, and this order of analogizing superposes on Electric radiant Heating Film that step (3) forms or electric heating piece, enters step (5) then;
Situation for making individual layer Electric radiant Heating Film or electric heating piece electric heating body directly enters step (5) afterwards in step (3);
(5) with the conduction complex material conductive electrode bonding or be embedded on Electric radiant Heating Film or the electric heating piece,
(6) the outer surface of Electric radiant Heating Film or electric heating piece set by step the process of (2) form one deck insulated enclosure layer;
(7) the semi-finished product baking and curing that will make at last;
Above-mentioned per pass operation and finishing operation to the baking and curing condition of composite insulating barrier or Electric radiant Heating Film or electric heating piece are: 50 ℃～450 ℃ of curing temperature scopes, curing time, scope was 30 minutes to 10 hours, consider from raising the efficiency and save energy equal angles, only condition of cure is: 100 ℃～300 ℃ of curing temperature scopes, curing time, scope was 300 minutes～120 minutes.
Outer surface adopts the making of the electric heating body of the present invention of alternate manner insulation, and the step in the above-mentioned technological process (6) can be saved.
In the above-mentioned technological process, can also combine the bonding of conductive electrode or embedding operation with the production process of Electric radiant Heating Film or electric heating piece and carry out, promptly with after conduction complex material spraying or brushing or blade coating or roller coating or silk screen printing formation Electric radiant Heating Film or the electric heating piece, promptly with the conduction complex material conductive electrode bonding or be embedded on Electric radiant Heating Film or the electric heating piece, and then airing or baking and curing together, so more help combining of conductive electrode and Electric radiant Heating Film or electric heating piece.
Power designs of the present invention can be by thickness, the area of Electric radiant Heating Film or electric heating piece, resistance of itself and the decision of two electrode distances.
The present invention is owing to adopted new material to prepare insulating barrier and Electric radiant Heating Film or electric heating piece, and product baking and curing is at a lower temperature made, and needn't pass through the high temperature sintering operation, thereby work simplification, and finished product rate height, steady quality.Electric heating body gets final product detected resistance in stage and semi-finished product (before the curing), makes the electric parameter of product be easy to control.Because the adhesive material of bonded-electrode is consistent with Electric radiant Heating Film or electric heating block of material character, can eliminate electrode and Electric radiant Heating Film or electric heating piece Contact Boundary " arcing " phenomenon effectively.Insulated compound body material can constitute one deck insulated enclosure layer at the outer surface of electric heating body and make electric heating body more meet the environment for use requirement.
Electric heating body product of the present invention has can anti-600 ℃ of high temperature and performance deterioration not, can be for a long time in 250 ℃ of work down (through test 240～260 ℃ of 3000 hours performances of work deteriorations not down), can produce and bear up to 30 watts/centimetre
2Power density, can emergency heat and cooling property resistance-chilling repeated stock, the good electrical performance of anti-energising-outage repeated stock.
The present invention can adapt to and make various all-in-one-piece electric heating appliances according to the form of ground, comprise electric heating appliance and electroheat equipment and the device that use in fields such as family expenses, industrial or agricultural, scientific research, national defence, also can be made into various types and be used to assemble electric heating appliance, the electric heating element of unit.
Fig. 1 to Fig. 4 is the structural representation of the electric heating body of different types, and (1) is general ground among the figure, and (2) are the insulation ground, and (3) are insulating bottom layer, and (4) are Electric radiant Heating Film or electric heating piece, and (5) are the surface insulation sealant, and (6) are conductive electrode.
Embodiment one
The making of enamel class electric heating appliance: at the heating position of enamel heating container, insulated compound body material roller coating insulating bottom layer with preparation, thickness is 1mm, after the oven dry, on insulating bottom layer, print (silk screen printing) Electric radiant Heating Film with the conduction complex material, thickness is 0.08mm, then on Electric radiant Heating Film with the bonding embedding conductive electrode of identical conduction complex material (available copper strip), after detection semi-finished product cell hotting mask resistance is qualified, with its oven dry, brush the insulated enclosure layer with insulated compound body material on Electric radiant Heating Film again, thickness is 0.3mm, gives baking and curing again.The prescription of used conduction complex material is (percentage by weight): sodium silicate (40 ° of Be ') 43%, nickel coated aluminium oxide powder 34%, silicon dioxide powder 4%, zirconia powder 9%, magnesia powder 10%.The prescription of insulated compound body material is (percentage by weight): acid aluminum phosphate (concentration 48%) 42%, magnesia powder 7.5%, alumina powder 15%, silicon dioxide powder 21%, chromium trioxide powder 5.3%, titanium oxide powder 9.2%.The baking and curing condition: temperature is 150 ℃, and drying time is 60 minutes.
Embodiment two
The making of the electric heating body of insulating ceramics matter ground: the conduction complex material blade coating electric heating piece of on ground, using preparation, thickness 0.45mm, on the electric heating piece with the bonding embedding conductive electrode of identical conduction complex material, dry after detection electric heating piece semi-finished product cell resistance is qualified, brushing insulated enclosure layer on the electric heating piece with the insulated compound body material of preparing, thickness is 1.0mm, and last baking and curing forms.Used conduction complex material prescription is (percentage by weight): neutral water glass (40 ° of Be ') 44%, graphite powder 12%, aluminium silicate powder 10%, aluminium oxide powder 10%, silicon dioxide powder 24%.Insulated compound body material prescription (percentage by weight): neutral water glass (40 ° of Be ') 32%, silicon dioxide powder 19%, di-iron trioxide powder 24%, zirconia powder 13%, barium monoxide powder 5%, lead oxide powder 7%.The baking and curing condition: curing temperature is 250 ℃, and be 80 minutes curing time.
Embodiment three
Electric heating body with two layers of Electric radiant Heating Film, hierarchical sequence is: ground, insulating bottom layer, Electric radiant Heating Film, insulating barrier, Electric radiant Heating Film, surface insulation sealant, two layers of Electric radiant Heating Film conductive electrode that bonds respectively can form two groups of independently heaters, and conduction complex material prescription is (percentage by weight): acid aluminum phosphate (concentration 48%) 48%, graphite powder 10%, nickel coated graphite powder 5%, titanium dioxide powder 6.7%, silicon dioxide powder 18%, magnesia powder 7.5%, chromium trioxide 4.8%.Insulated compound body material prescription is (percentage by weight): sodium silicate (39 ° of Be ') 30%, di-iron trioxide powder 30%, calcium oxide powder 5%, magnesia powder 5%, titanium dioxide powder 7%, silicon dioxide powder 20%, barium monoxide powder 3%.Thickness: Electric radiant Heating Film 0.15mm, insulating barrier 0.25mm, 120 ℃ of curing temperatures, 70 minutes curing times.
Claims (14)
1, a kind of electric heating body comprises ground, one or more layers insulating barrier, one or more layers Electric radiant Heating Film or electric heating piece, conductive electrode, it is characterized in that:
(1) said insulating barrier by alkali metal silicate salt inorganic bond carrier or (with) phosphoric acid salt inorganic bond agent carrier and the compound insulated compound body material of forming of insulating particle constitute through solidifying;
(2) said Electric radiant Heating Film or electric heating piece by alkali metal silicate salt inorganic bond carrier or (with) phosphoric acid salt inorganic bond agent carrier and conducting particles compound and add an amount of curing agent or (with) filler and the conduction complex material formed constitutes through solidifying;
(3) said conductive electrode directly is bonded on Electric radiant Heating Film or the electric heating piece with above-mentioned conduction complex material;
(4) condition of cure of above-mentioned insulated compound body material and conduction complex material is: 50 ℃-450 ℃ of curing temperature scopes, curing time, scope was 30 minutes to 10 hours.
2, by the described electric heating body of claim 1, it is characterized in that the optimum condition of cure of said insulated compound body material and conduction complex material is: the curing temperature scope is 100 ℃-300 ℃, and curing time, scope was 30 minutes-120 minutes.
3, by the described electric heating body of claim 1, it is characterized in that one pack system or multicomponent compound that said alkali metal silicate salt adhesive is neutral water glass, sodium silicate, KP1, rubidium waterglass, lithium silicate.
4, by the described electric heating body of claim 1, it is characterized in that said phosphoric acid salt adhesive is acid phosphate, metaphosphate, pyrophosphate or directly by phosphoric acid and metal oxide, halide, hydroxide, alkaline salt, silicate, boratory reactant, is above-mentioned material one pack system or multi-component compound.
5, by the described electric heating body of claim 1, it is characterized in that said conducting particles is the one pack system or the multi-component mixture of alloyed powder, conduction organo-metallic compound powder, metal composite powder, metal and non-metal compound powder, metal and compound complex powder, conductive non-metals powder, conductive non-metals compound powder, conductive metallic compound powder, the particle diameter of conducting particles is 2 μ～0.5mm, and optimum particle diameter is 3 μ～0.05mm.
6, by the described electric heating body of claim 5, it is characterized in that said alloyed powder is a Nickel Aluminium Alloy Powder, said conduction organo-metallic compound powder is a carbonyl nickel powder, said metal composite powder is an Al contained Ni, said metal and non-metal compound powder are nickel coated graphite powder, said metal and compound complex powder are nickel coated aluminium oxide powder, nickel bag diatomite in powder, nickel bag zirconia powder, nickel bag tungsten carbide powder, nickel bag calcium fluoride powder, nickel bag molybdenum disulphide powder, said conductive non-metals powder is a carbon black powder, graphite powder, the heavily-doped semiconductor silica flour, said conductive non-metals compound powder is a carborundum powder, and said conductive metallic compound powder is a tungsten carbide powder.
7, by the described electric heating body of claim 1, it is characterized in that said conducting particles is a conducting staple fiber, comprise carbon chopped fiber or (with) the graphite short fiber or (with) carborundum brief fiber, the length of short fiber is 0.2～20mm, diameter is 5～200 μ, preferably adopting length is 3～5mm, and diameter is the conducting staple fiber of 7～20 μ.
8, by the described electric heating body of claim 1, the curing agent that it is characterized in that said conduction complex material is an oxidate powder, comprise silicon dioxide powder, magnesia powder, calcium oxide powder, brown iron oxide, oxide powder and zinc, titanium oxide powder, chromium oxide powder, alumina powder, it perhaps is aluminium hydrate powder, fluosilicate powder, borate powder, phosphate powder, above-mentioned substance one pack system or multicomponent mixture; Said filler is the one pack system or the multicomponent mixture of mica powder, mullite powder, wollastonite in powder, talcum powder, blanc fixe.
9, by the described electric heating body of claim 1, the insulating particle that it is characterized in that said insulated compound body material is the insulation oxide powder, comprise lead oxide powder, brown iron oxide, zirconia powder, magnesia powder, calcium oxide powder, titanium oxide powder, barium monoxide powder, alumina powder, chromium oxide powder, silicon dioxide powder and mica powder, wollastonite in powder, talcum powder, mullite powder, the one pack system of clay powder, blanc fixe or multicomponent mixture.
10, by the described electric heating body of claim 1, it is characterized in that each component content (percentage by weight of said conduction complex material, the complex total amount is 100%) be: inorganic bond agent carrier 15～70%, conducting particles 8～75%, surplus be curing agent or (with) filler, the optimum content of conducting particles is 12～35%; In the said insulated compound body material, the inorganic bond vector contg can account for 10～90%, and optimum content is 20～45%(percentage by weight), surplus is an insulating particle.
11, the manufacture method of the described electric heating body of a kind of claim 1 is characterized in that comprising following technological process and process conditions:
(1) preparation conducing composite material and insulated compound body material, said conduction complex material by alkali metal silicate salt inorganic bond carrier or (with) phosphoric acid salt inorganic bond agent carrier and conducting particles compound form and add therein an amount of curing agent or (with) filler, said insulated compound body material by alkali metal silicate salt inorganic bond carrier or (with) phosphoric acid salt inorganic bond agent carrier and insulating particle is compound forms;
(2) with insulated compound body material airing or baking and curing behind surface of bottom material spraying or brushing or blade coating or roller coating or printing formation insulating barrier, the every layer thickness of insulating barrier is 0.05mm～5mm;
(3) with the conduction complex material on the insulating barrier or directly on the insulation surface of bottom material spraying or brushing or blade coating or roller coating or silk screen printing form Electric radiant Heating Film or electric heating piece, then with its airing or baking and curing, Electric radiant Heating Film thickness can be 0.04～0.45mm, and the thickness of electric heating piece is 0.45～4.0mm;
(4) for the situation of making multilayer Electric radiant Heating Film or electric heating piece electric heating body, the process that continues (2), (3) set by step is with a layer insulating, one deck Electric radiant Heating Film or electric heating piece, and this order of analogizing superposes on Electric radiant Heating Film that step (3) forms or electric heating piece, enters step (5) then;
Situation for making individual layer Electric radiant Heating Film or electric heating piece electric heating body directly enters step (5) afterwards in step (3);
(5) with the conduction complex material conductive electrode bonding or be embedded on Electric radiant Heating Film or the electric heating piece;
(6) the outer surface of Electric radiant Heating Film or electric heating piece set by step the process of (2) form one deck insulated enclosure layer;
(7) the semi-finished product baking and curing that will make at last;
The baking and curing condition of above-mentioned per pass operation and finishing operation is: 50 ℃～450 ℃ of curing temperature scopes, be 30 minutes～10 hours curing time.
12, by the manufacture method of the described electric heating body of claim 11, it is characterized in that saving the step (6) in the claim 11.
13, press the manufacture method of the described electric heating body of claim 11, it is characterized in that the bonding of the production process of Electric radiant Heating Film or electric heating piece and conductive electrode or embedding operation combined and carry out, promptly with after conduction complex material spraying or brushing or blade coating or roller coating or silk screen printing formation Electric radiant Heating Film or the electric heating piece, promptly with conducing composite material conductive electrode bonding or be embedded on Electric radiant Heating Film or the electric heating piece, and then airing or baking and curing together.
14, by the manufacture method of the described electric heating body of claim 11, it is characterized in that the optimum baking and curing condition of said per pass operation is: 100 ℃～300 ℃ of curing temperature scopes, curing time, scope was 30 minutes～120 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100683 CN1014762B (en) | 1989-02-03 | 1989-02-03 | Binding type electrically-heating body and making technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100683 CN1014762B (en) | 1989-02-03 | 1989-02-03 | Binding type electrically-heating body and making technique thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1044746A CN1044746A (en) | 1990-08-15 |
| CN1014762B true CN1014762B (en) | 1991-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89100683 Expired CN1014762B (en) | 1989-02-03 | 1989-02-03 | Binding type electrically-heating body and making technique thereof |
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| Country | Link |
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| CN (1) | CN1014762B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102155750B (en) * | 2011-04-21 | 2015-09-09 | 浙江苏泊尔家电制造有限公司 | A kind of electromagnetic oven and this electromagnetic oven manufacture method |
| CN103428909A (en) * | 2013-07-12 | 2013-12-04 | 罗日良 | Heating tube forming process |
| CN103438501B (en) * | 2013-08-28 | 2014-12-10 | 南通大学 | Hot water supplying and heating system with assistant electric heating device and heat pump |
| CN103438491B (en) * | 2013-08-28 | 2016-04-27 | 南通大学 | With hot water supply and the heating system of the employing heat pump of hot water self-circulation system |
| CN103937415B (en) * | 2014-04-09 | 2016-08-17 | 西南科技大学 | A kind of Water-resistant Solidified Reagent for sodium silicate binder |
| CN107277948B (en) * | 2017-05-03 | 2021-01-22 | 东莞市宏阳热能科技有限公司 | Far infrared composite resin heating substrate, preparation method and application thereof |
| CN107197544A (en) * | 2017-05-03 | 2017-09-22 | 陶志斌 | Inorganic non-metallic far infrared graphite resistive film, its preparation method and application |
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1989
- 1989-02-03 CN CN 89100683 patent/CN1014762B/en not_active Expired
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| CN1044746A (en) | 1990-08-15 |
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Address after: Wushan South China University of Technology South Guangzhou 23 dormitory building 301 Applicant after: Zeng Xianfu Address before: Guangzhou Shahe top water shade one horizontal road 61 Applicant before: Huayuan Electrothermic Apparatus Factory, Guangzhou City |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HUAYUAN ELECTROTHERMAL ELECTRIC APPLIANCES FACTORY, GUANGZHOU TO: ZENG XIANFU |
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| C14 | Grant of patent or utility model | ||
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