CN101102625B - Production method of carbon fiber heating body for infrared heating tube - Google Patents
Production method of carbon fiber heating body for infrared heating tube Download PDFInfo
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- CN101102625B CN101102625B CN2006100471452A CN200610047145A CN101102625B CN 101102625 B CN101102625 B CN 101102625B CN 2006100471452 A CN2006100471452 A CN 2006100471452A CN 200610047145 A CN200610047145 A CN 200610047145A CN 101102625 B CN101102625 B CN 101102625B
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Abstract
The method comprises: the viscose short fiber is used to be woven into viscose rope-like textile fabric; the rope-like textile fabric is winded into twist shape and is coated a resin layer by using impregnation; the impregnation time is 1-100 hours and in temperature between 850 deg.C -2400 deg.C; under the protection of inert gases, after high-temperature carbonizing, a twisted rope-like resin carbon/carbon composite fiber elastic electrothermal body is formed.
Description
Technical field
The present invention relates to the electrical heating elements processing technique field, specifically a kind of production method of carbon fiber heating body for infrared heating tube.
Background technology
Along with the continuous development of science and technology, the continuous progress of society, also simple in structure because of it as the carbon fiber electric heating tube of electrical heating elements, the heat efficiency is high and characteristics such as long service life, range of application is obviously widened.At present, has pass data report, advanced on the market is the energy-saving carbon fiber electrothermal tube, and its structure mainly is made of power lead, lead brace, connection wire, fixed core, external insulation housing, center inner support, flexible carbon fiber electrothermal part, external insulation porcelain fixed block and inert gas.Wherein flexible carbon fiber electrothermal part is wrapped on the center bearing bracket, the two ends of flexible carbon fiber electrothermal part are fixed among the inner chamber of external insulation housing by fixed core, connection wire bundle is entangled in the two ends of flexible carbon fiber electrothermal part, and connection wire and power lead and lead brace join and heat in the airtight termination that is enclosed in the external insulation housing admittedly.The flexible carbon fiber electrothermal part that this structure is more traditional truly has progress, but because flexible carbon fiber electrothermal part must be attached to embodying its performance on the inner support of center, and the heater of original technology is a polypropylene-base carbon fiber continuous filament yarn, regular size is the 1k-24k carbon fiber, its major defect is: 1, can not the self-supporting moulding, need be wrapped in insulator (such as quartz ampoule) and go up use, cause heat-generating pipe processing technology complexity, the processing cost height, rate of finished products is low, in addition in processing, the breakage of heat-generating pipe inner core support insulator easy fracture causes product rejection not use in transportation and the use; 2, polyacrylonitrile-based carbon fibre was the non-special-purpose heating material of strength structure material originally, and its resistance value is fixed with specification, had only by the length adjustment resistance value, and adjustable extent limited (being generally between the 0.01-10.0 Ω) has limited its range of application.
Summary of the invention
The production method that the purpose of this invention is to provide a kind of carbon fiber heating body for infrared heating tube that can the self-supporting moulding.
The object of the present invention is achieved like this: it is characterized in that: get viscose glue base short fiber through spinning; plying; the viscose glue base rope form braid that rope making is woven into; viscose glue base rope form braid is wound in helical form and is impregnated with a typing resin bed again under the normal temperature; this molding resin layer is the phenolic resins layer; the furane resins layer; epoxy resin layer or polyvinyl alcohol resin layer; the weight concentration scope of molding resin layer is 0.001%-10%; dip time is 1-100 hour; under 850 ℃-2400 ℃ of temperature, under inert gas shielding behind high temperature cabonization and the resin-based carbon of the spiral ropy of making/carbon carbon fiber reinforce plastic elasticity electric heating element.
In order to make the carbon fiber elasticity electric heating element Stability Analysis of Structures of spiral ropy, therefore select for use the length range of viscose glue base short fiber between 30-300mm.
In order to guarantee to be used for the plying spun rayon line strength of rope making in manufacture process, the number of share of stock scope that viscose glue base short fiber is pooled capital after spinning is the 2-20 thigh
For in use, the resistance value that above-mentioned carbon fiber elasticity electric heating element is regulated on energy maximum magnitude ground is the 10-100 thigh selecting the viscose glue base short fiber rope making number of share of stock scope through the spinning plying for use then.
The above-mentioned selected carbon fiber elasticity electric heating element surface impregnation time is 1-100 hour, be to determine according to a large amount of dipping data, when dip time less than 1 hour, the time pickup inhomogeneous, influence product quality; When dip time greater than 100 hours, then the index of correlation of pickup has all reached requirement, again the dipping with meaningless.Certainly suitably improve dipping temperature, also can correspondingly shorten dip time, but can raise the cost, so the present invention does not consider.
The selected molding resin layer of the present invention is: phenolic resins layer, furane resins layer, epoxy resin layer or polyvinyl alcohol resin layer.The weight concentration scope of molding resin layer is: 0.001%-10%, because when the weight concentration scope is lower than 0.001%, its viscosity and content are all too low, and the intensity that makes it to be used to the carbon supporter of finalizing the design behind high temperature cabonization is affected; And when the weight concentration scope is higher than 10%, then its viscosity and content are all too high, like this, the surface impregnation amount is inhomogeneous, and the resistance value adjusting range of activated carbon supporter reduces behind high temperature cabonization, simultaneously because the excessive elasticity of carbon fiber elasticity electric heating element that makes of the carbon amount that is used to finalize the design reduces, be unfavorable for practical application, even also local overheating can appear, and reduce useful life, and application reduces greatly.More satisfactory concentration range is 0.05%-1% in the above-mentioned selected resin.
The present invention has following advantage:
1, this product is the heater special product, product is the resin-based carbon/carbon carbon fiber reinforce plastic elasticity electric heating element of spiral ropy after the resin typing, be after dipping molding resin carbonization treatment, to form constitutionally stable carbon fiber elasticity electric heating element, therefore, the heater inner core need not built-in support insulator during heat-generating pipe in assembling, simplified processing process reduces cost and has also avoided simultaneously causing product rejection not use because of heat-generating pipe inner core support insulator fracture breakage.
2, heater of the present invention is the special-purpose processing of heater, resistance can be according to the design when producing of heater pipe specification, adjustable extent wide (being generally 5-200 Ω), substantially can satisfy existing heater pipe needs, controllability strong (general error≤2 Ω) can satisfy the requirement of existing heater tube power error≤8%, can be controlled in 5% with the general power error of heater pipe of this production.
3, of the present invention is that viscose-based carbon fiber is the special-purpose ablation resistant materials of Aero-Space, its ablation resistance obviously is better than polyacrylonitrile-based carbon fibre, the heater pipe longer service life that the feasible like this heater that utilizes this technology to produce is made, generally can surpass 10,000 hours, and former technology is produced heater pipe general useful life is about 5000 hours.That the present invention also has is simple and reasonable, cost is low, range of application is wide, safe and reliable, advantages such as long service life.
Description of drawings
Fig. 1 is a cross-section structure simplified schematic diagram of the present invention;
Below will the present invention will be further described by embodiment, but following example only is the present invention's example wherein, the interest field of not representing the present invention and being limited.This interest field is as the criterion with claims.
Embodiment
Embodiment 1:
Get viscose glue base fiber ropy that viscose glue base short fiber is woven into through spinning (spinning and slubbing), plying (number of share of stock scope 2-20 thigh all can), through rope making (selecting plying back viscose rayon 10-100 thigh for use) technical process through be wound in helical form at normal temperatures surface impregnation one resin bed of finalizing the design is arranged; dip time is 24 hours; under 850 ℃-2400 ℃ of temperature, under inert gas shielding behind high temperature cabonization and the resin-based carbon of the spiral ropy of making/carbon carbon fiber reinforce plastic elasticity electric heating element.Fig. 1 is the cross-section structure simplified schematic diagram that the present invention uses, and 4 among the figure is the insulator shell of quartz glass material, and being provided with a resin-based carbon of the present invention/carbon carbon fiber reinforce plastic elasticity electric heating element 5,6 in the pipe of insulator shell 4 is through dipping molding resin layer; The two ends of carbon fiber elasticity electric heating element 5 also are connected with interior brace 3, lead brace 2 in turn and penetrate the power lead 1 of sealing insulating end, external insulation porcelain fixed block 7 is arranged on the outer end of insulator shell closed at both ends insulating end, and the casing pack of external insulation housing has inert gas 8.Use principle and existing carbon fiber electric heating tube are as good as.
Useful life 〉=10000 hour;
Resistance value scope: 5-200 Ω;
Heater working voltage 80-240v.
Claims (5)
1. the production method of a carbon fiber heating body for infrared heating tube; it is characterized in that: get viscose glue base short fiber through spinning; plying; the viscose glue base rope form braid that rope making is woven into; viscose glue base rope form braid is wound in helical form and is impregnated with a typing resin bed again under the normal temperature; this molding resin layer is the phenolic resins layer; the furane resins layer; epoxy resin layer or polyvinyl alcohol resin layer; the weight concentration scope of molding resin layer is 0.001%-10%; dip time is 1-100 hour; under 850 ℃-2400 ℃ of temperature, under inert gas shielding behind high temperature cabonization and the resin-based carbon of the spiral ropy of making/carbon carbon fiber reinforce plastic elasticity electric heating element.
2. the production method of carbon fiber exothermic part according to claim 1 is characterized in that: viscose glue base short fiber is the 2-20 thigh through the number of share of stock scope of spinning plying.
3. the production method of carbon fiber exothermic part according to claim 1 is characterized in that: selecting the viscose glue base short fiber rope making number of share of stock scope through the spinning plying for use is the 10-100 thigh.
4. the production method of carbon fiber exothermic part according to claim 1, it is characterized in that: the length range of viscose glue base short fiber is between 30-300mm.
5. the production method of carbon fiber exothermic part according to claim 1, it is characterized in that: the weight concentration scope of molding resin layer is 0.05%-1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100471452A CN101102625B (en) | 2006-07-07 | 2006-07-07 | Production method of carbon fiber heating body for infrared heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100471452A CN101102625B (en) | 2006-07-07 | 2006-07-07 | Production method of carbon fiber heating body for infrared heating tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101102625A CN101102625A (en) | 2008-01-09 |
| CN101102625B true CN101102625B (en) | 2010-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100471452A Expired - Fee Related CN101102625B (en) | 2006-07-07 | 2006-07-07 | Production method of carbon fiber heating body for infrared heating tube |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100909881B1 (en) * | 2008-07-17 | 2009-07-30 | 제이씨텍(주) | Carbon heating element and method of preparing the same |
| CN102965768B (en) * | 2012-11-28 | 2014-10-08 | 上海易是好电器有限公司 | Method for preparing carbon-carbon composition heating wire by taking carbon fiber yarn as base, and related carbon-carbon composition heating wires |
| CN105014992A (en) * | 2015-07-03 | 2015-11-04 | 苏州国宇碳纤维科技有限公司 | Manufacturing technology for carbon fiber heating tube |
| CN105128359A (en) * | 2015-07-03 | 2015-12-09 | 苏州国宇碳纤维科技有限公司 | Processing technology for carbon-fiber heating tube |
| CN105246179B (en) * | 2015-10-22 | 2018-05-08 | 山东大学 | A kind of flexible and adjustable carbon fiber exothermic part of emissivity and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478302Y (en) * | 2001-04-17 | 2002-02-20 | 上海三盟电热材料有限公司 | Carbon fiber electrothermal cord |
| CN2586322Y (en) * | 2002-12-18 | 2003-11-12 | 李家俊 | Carbon fiber far infrared electrothermal tube |
| CN1545369A (en) * | 2003-11-17 | 2004-11-10 | 李家俊 | Method for fabricating heating element and electrode lead in carbon fiber far infrared electric heating tube |
-
2006
- 2006-07-07 CN CN2006100471452A patent/CN101102625B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478302Y (en) * | 2001-04-17 | 2002-02-20 | 上海三盟电热材料有限公司 | Carbon fiber electrothermal cord |
| CN2586322Y (en) * | 2002-12-18 | 2003-11-12 | 李家俊 | Carbon fiber far infrared electrothermal tube |
| CN1545369A (en) * | 2003-11-17 | 2004-11-10 | 李家俊 | Method for fabricating heating element and electrode lead in carbon fiber far infrared electric heating tube |
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| Publication number | Publication date |
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| CN101102625A (en) | 2008-01-09 |
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