CN112867185A - Preparation method of high-strength heat accumulating type electric boiler electric heating element - Google Patents
Preparation method of high-strength heat accumulating type electric boiler electric heating element Download PDFInfo
- Publication number
- CN112867185A CN112867185A CN202110111783.0A CN202110111783A CN112867185A CN 112867185 A CN112867185 A CN 112867185A CN 202110111783 A CN202110111783 A CN 202110111783A CN 112867185 A CN112867185 A CN 112867185A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- heating element
- electric heating
- accumulating type
- heat accumulating
- 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.)
- Pending
Links
- 238000005485 electric heating Methods 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 50
- 239000004917 carbon fiber Substances 0.000 claims abstract description 50
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000005245 sintering Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
- 238000002791 soaking Methods 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 7
- 238000009461 vacuum packaging Methods 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- 239000011157 advanced composite material Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
Landscapes
- Inorganic Fibers (AREA)
- Resistance Heating (AREA)
Abstract
The invention discloses a preparation method of a high-strength heat accumulating type electric boiler electric heating element, which comprises the following steps: the method comprises the following steps: immersing the carbon fiber filaments in an organic solvent for soaking; step two: and (4) drying the carbon fiber yarns obtained in the step one. The electric heating element is formed by twisting the carbon fiber wires in a single-stranded manner, combining and twisting a plurality of groups of carbon fiber wires subjected to single-stranded twisting again, winding the carbon fiber wires on the support core body in an evenly distributed manner, and sintering the carbon fiber wires.
Description
Technical Field
The invention relates to the technical field of electric heating element preparation, in particular to a preparation method of a high-strength heat accumulating type electric boiler electric heating element.
Background
The electric heating element products are various in category, conventional products, electric heating alloy, electric heating material, microwave heating device, electromagnetic induction heating device, electric heating wire, electric heating plate, electric heating belt, electric heating cable, electric heating disc, electric heating couple, electric heating ring, electric heating rod, electric heating belt, electric heating core, mica heating sheet, ceramic heating sheet, tungsten-molybdenum product, silicon-carbon rod, molybdenum powder, tungsten strip, electric heating wire, mesh belt, and many other electric heating element products.
A specialty fiber consisting of carbon. The graphite fiber has the characteristics of high temperature resistance, friction resistance, electric conduction, heat conduction, corrosion resistance and the like, is fibrous and soft in appearance, can be processed into various fabrics, and has high strength and modulus along the fiber axis direction due to the preferred orientation of the graphite microcrystalline structure along the fiber axis. The carbon fibers have a low density and thus a high specific strength and a high specific modulus. The carbon fiber is mainly used as a reinforcing material to be compounded with resin, metal, ceramic, carbon and the like to manufacture an advanced composite material. The specific strength and the specific modulus of the carbon fiber reinforced epoxy resin composite material are the highest in the existing engineering materials.
The existing electric heating element is usually directly processed by a material with good heat conductivity, but the strength is low, and the heat storage performance is general, so a preparation method of the high-strength heat storage type electric boiler electric heating element is provided.
Disclosure of Invention
The invention aims to provide a preparation method of a high-strength heat accumulating type electric boiler electric heating element, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a high-strength heat accumulating type electric boiler electric heating element comprises the following steps:
the method comprises the following steps: immersing the carbon fiber filaments in an organic solvent for soaking;
step two: drying the carbon fiber yarns obtained in the step one, then carrying out single-strand twisting by using twisting equipment, merging a plurality of strands of carbon fibers after the single-strand twisting is finished, and then carrying out twisting again by using twisting equipment;
step three: uniformly winding the twisted carbon fibers obtained in the step two on a support core body;
step four: sintering and shaping the finished product obtained in the step three by using vacuum, and carrying out heat preservation treatment after shaping;
step five: and (4) performing depoling treatment on the product obtained in the step four to enable the carbon fiber to be separated from the support core body, and then performing vacuum packaging to obtain a finished product.
In a preferred embodiment of the present invention, the organic solvent in the first step is a mixture of phenolic resin and alcohol, and the mixing ratio is 1: 9.
As a preferred embodiment of the invention, the temperature of the vacuum sintering is 1800-2000 ℃, and the holding time is 10 min.
In a preferred embodiment of the present invention, the carbon fiber yarn is polyacrylonitrile yarn.
In a preferred embodiment of the present invention, the carbon fiber yarn has a thickness of 50mm to 80mm after being twisted and wound.
In a preferred embodiment of the present invention, the support core is a ceramic rod.
In a preferred embodiment of the present invention, the soaking time in the organic solvent in the first step is 1 h.
In a preferred embodiment of the present invention, the number of carbon fiber repeatedly twisted strands in the second step is three.
Compared with the prior art, the invention has the following beneficial effects:
the electric heating element is formed by twisting the carbon fiber wires in a single-stranded manner, combining and twisting a plurality of groups of carbon fiber wires subjected to single-stranded twisting again, winding the carbon fiber wires on the support core body in an evenly distributed manner, and sintering the carbon fiber wires.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a flow chart of a method for preparing an electric heating element of a high-strength heat accumulating type electric boiler according to the invention;
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
Soaking the carbon fiber filaments in an organic solvent for 1 hour, drying the soaked carbon fiber filaments, performing single-strand twisting by using twisting equipment, merging a plurality of strands of carbon fibers after the single-strand twisting is finished, twisting again by using twisting equipment, wherein the number of the twisted strands is three, the thickness of the twisted carbon fiber filaments is 50-80 mm, uniformly winding the twisted carbon fibers on a ceramic rod, sintering and shaping the finished product obtained in the step three by using vacuum, performing heat preservation treatment after shaping, performing vacuum sintering at the temperature of 1800-2000 ℃ for 10min, performing depoling treatment on the product obtained in the step four to separate the carbon fibers from the ceramic rod, and performing vacuum packaging to obtain the finished product.
Example two
Soaking the carbon fiber filaments in an organic solvent for 1h, drying the carbon fiber filaments obtained after soaking, performing single-strand twisting by using twisting equipment, wherein the thickness of the twisted carbon fiber filaments is 50-80 mm, uniformly winding the twisted carbon fibers on a ceramic rod, sintering and shaping the finished product obtained in the third step by using vacuum, performing heat preservation treatment after shaping, wherein the temperature of vacuum sintering is 1800-2000 ℃, the heat preservation time is 10min, performing depoling treatment on the product obtained in the fourth step to separate the carbon fibers from the ceramic rod, and then performing vacuum packaging to obtain the finished product.
EXAMPLE III
Immersing the carbon fiber wire in an organic solvent for soaking for 1h, drying the carbon fiber wire obtained after soaking, dividing the carbon fiber after soaking into a plurality of strands, wherein the thickness of each strand of carbon fiber is 50-80 mm, uniformly winding the divided carbon fibers on a ceramic rod, sintering and shaping the finished product obtained in the third step by using vacuum, performing heat preservation treatment after shaping, performing vacuum sintering at the temperature of 1800-2000 ℃ for 10min, performing depoling treatment on the product obtained in the fourth step to enable the carbon fiber to be separated from the ceramic rod, and then performing vacuum packaging to obtain the finished product.
The heating elements obtained in the three groups of examples were subjected to heating tests, the test data being shown in the following figure:
| time of heating | 20s | 40s | 60s | 80s |
| Example one | 40℃ | 80℃ | 130℃ | 160℃ |
| Example two | 30℃ | 60℃ | 80℃ | 110℃ |
| EXAMPLE III | 20℃ | 25℃ | 50℃ | 70℃ |
In summary, the first embodiment is an optimal real-time scheme, the invention is obtained by twisting the carbon fiber filaments in single-strand, then combining and twisting a plurality of groups of carbon fiber filaments twisted in single-strand, then winding the carbon fiber filaments on the support core body in uniform distribution, and then sintering the carbon fiber filaments.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A preparation method of a high-strength heat accumulating type electric boiler electric heating element is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: immersing the carbon fiber filaments in an organic solvent for soaking;
step two: drying the carbon fiber yarns obtained in the step one, then carrying out single-strand twisting by using twisting equipment, merging a plurality of strands of carbon fibers after the single-strand twisting is finished, and then carrying out twisting again by using twisting equipment;
step three: uniformly winding the twisted carbon fibers obtained in the step two on a support core body;
step four: sintering and shaping the finished product obtained in the step three by using vacuum, and carrying out heat preservation treatment after shaping;
step five: and (4) performing depoling treatment on the product obtained in the step four to enable the carbon fiber to be separated from the support core body, and then performing vacuum packaging to obtain a finished product.
2. The method for preparing an electric heating element of a high-strength heat accumulating type electric boiler as claimed in claim 1, wherein: the organic solvent in the first step is a mixture of phenolic resin and alcohol, and the mixing ratio is 1: 9.
3. The method for preparing an electric heating element of a high-strength heat accumulating type electric boiler as claimed in claim 1, wherein: the temperature of the vacuum sintering is 1800-2000 ℃, and the heat preservation time is 10 min.
4. The method for preparing an electric heating element of a high-strength heat accumulating type electric boiler as claimed in claim 1, wherein: the carbon fiber yarn is polyacrylonitrile yarn.
5. The method for preparing an electric heating element of a high-strength heat accumulating type electric boiler as claimed in claim 1, wherein: the thickness of the twisted carbon fiber yarn is 50-80 mm.
6. The method for preparing an electric heating element of a high-strength heat accumulating type electric boiler as claimed in claim 1, wherein: the support core body is a ceramic rod.
7. The method for preparing an electric heating element of a high-strength heat accumulating type electric boiler as claimed in claim 1, wherein: and immersing the organic solvent in the step one for 1 h.
8. The method for preparing an electric heating element of a high-strength heat accumulating type electric boiler as claimed in claim 1, wherein: and the number of the carbon fiber repeated twisting strands in the second step is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110111783.0A CN112867185A (en) | 2021-01-27 | 2021-01-27 | Preparation method of high-strength heat accumulating type electric boiler electric heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110111783.0A CN112867185A (en) | 2021-01-27 | 2021-01-27 | Preparation method of high-strength heat accumulating type electric boiler electric heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112867185A true CN112867185A (en) | 2021-05-28 |
Family
ID=76009544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110111783.0A Pending CN112867185A (en) | 2021-01-27 | 2021-01-27 | Preparation method of high-strength heat accumulating type electric boiler electric heating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112867185A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1809224A (en) * | 2006-01-19 | 2006-07-26 | 山东大学 | Preparation method of core-less carbon fiber spiral coil electrical heating element |
| CN204069386U (en) * | 2014-10-03 | 2014-12-31 | 北京中科联众科技股份有限公司 | A kind of carbon fiber electric heating tube |
| CN204180299U (en) * | 2014-10-03 | 2015-02-25 | 北京中科联众科技股份有限公司 | A kind of carbon fiber planar heat producing body and comprise its electric blanket and the vehicles |
-
2021
- 2021-01-27 CN CN202110111783.0A patent/CN112867185A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1809224A (en) * | 2006-01-19 | 2006-07-26 | 山东大学 | Preparation method of core-less carbon fiber spiral coil electrical heating element |
| CN204069386U (en) * | 2014-10-03 | 2014-12-31 | 北京中科联众科技股份有限公司 | A kind of carbon fiber electric heating tube |
| CN204180299U (en) * | 2014-10-03 | 2015-02-25 | 北京中科联众科技股份有限公司 | A kind of carbon fiber planar heat producing body and comprise its electric blanket and the vehicles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5088183A (en) | Process for producing fine and ultrafine filament superconductor wire | |
| JP2012509998A (en) | New metal fiber yarn with improved strength and workability | |
| CN109678548A (en) | A kind of carbon/carbon compound material spring producing method and device | |
| CN107988656B (en) | Preparation method of graphene-carbon nanotube composite fiber | |
| CN108625005B (en) | Carbon nanotube fiber composite core-spun yarn and preparation method and application thereof | |
| KR20110106311A (en) | A metal assembly constituting a precursor for a superconductor and a method suitable for the production of a superconductor | |
| CN112962189B (en) | Anti-cutting yarn and preparation method and application thereof | |
| CN106128545A (en) | Graphene core electric conductor and preparation method thereof | |
| CN102224285A (en) | Multibundle metal fiber yarn | |
| CN102362544B (en) | Method for producing a carbon band for a carbon infrared heater, method for producing a carbon infrared heater, and carbon infrared heater | |
| CN110391048A (en) | A kind of Nb3The preparation method of Sn presoma wire rod | |
| CN112867185A (en) | Preparation method of high-strength heat accumulating type electric boiler electric heating element | |
| CN114927288A (en) | Steel-cored aluminum strand annealing device and annealing process | |
| KR20210112268A (en) | Method of manufacturing carbon fiber heating wire and carbon fiber heating wire manufactured thereby | |
| CN102179944A (en) | Process for producing large-caliber epoxy glass fiber pultruded pipe | |
| CN204069386U (en) | A kind of carbon fiber electric heating tube | |
| CN112967845A (en) | Kilometer-grade multi-core MgB2Method for producing superconducting wire | |
| CN112030296A (en) | Flexible conductive yarn with carbon fiber fluff structure and preparation method thereof | |
| JP5718171B2 (en) | Method for producing compound superconducting stranded wire | |
| CN112281228A (en) | Cross-shaped sheath-core structure polylactic acid tow and preparation method thereof | |
| CN114315399B (en) | Carbon/carbon composite mold and preparation method and application thereof | |
| CN110970157A (en) | Hollow ultra-light phase-stabilizing cable and manufacturing method thereof | |
| CN116145300B (en) | Electromagnetic shielding function elastic yarn with negative poisson ratio effect | |
| CN114038631B (en) | Copper oxide litz wire and production process thereof | |
| US3529343A (en) | Method of producing metallic yarn |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210528 |
|
| RJ01 | Rejection of invention patent application after publication |