CN202716392U - Carbon fiber preheating dehumidification device - Google Patents
Carbon fiber preheating dehumidification device Download PDFInfo
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- CN202716392U CN202716392U CN 201220326288 CN201220326288U CN202716392U CN 202716392 U CN202716392 U CN 202716392U CN 201220326288 CN201220326288 CN 201220326288 CN 201220326288 U CN201220326288 U CN 201220326288U CN 202716392 U CN202716392 U CN 202716392U
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- carbon fiber
- dehydrating unit
- heating
- plug
- preheating dehydrating
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Abstract
The utility model is suitable for the field of composite materials processing and treating, and provides a carbon fiber preheating dehumidification device. The device comprises a contact-type heating device used to heat a carbon fiber strand and a convection-type heating device used to heat the carbon fiber strand. The carbon fiber preheating dehumidification device can be directly used in carbon fiber enhancement mode composite wire stylet pultrusion production line. On the premise that product quality and product performance can not be lowered, the pultrusion speed can be drastically accelerated and production output is raised, and even heating of carbon fiber can be achieved, and therefore an aim that resin matrix can be evenly solidified to form can be achieved. Meanwhile, shear modulus and bending modulus can be preciously controlled after the resin matrix is solidified and then the best mechanical performance of products can achieved. Besides, void content of the resin matrix when in pultrusion process can be obviously reduced. The contact-type heating mode and the convection-type heating mode are used at the same time so as to effectively bring the advantages to full play and overcome defects when the device is used independently.
Description
Technical field
The utility model belongs to composite processing and process field, relates in particular to a kind of carbon fiber preheating dehydrating unit.
Background technology
[0002] from eighties of last century nineties, carbon fiber composite core wire is widely used in replacing with composite the steel core of conventional wires, to reduce conducting wire sag and to improve running temperature, realizes rapid dilatation and improves the purpose of network security.The reinforced electric cable core that uses at present is the composite rigid rod overall structure that obtains with continuous carbon fibre enhancing high temperature resistant thermosetting resin mostly, its load-bearing mainly relies on carbon fiber, and toughness depends primarily on resin matrix and glass layer, according to traditional manufacturing process, exist fiber discontinuity, composite core top layer and internal heat to expand not mate, toughness is relatively poor and resinite solidifies the problems such as inhomogeneous, makes link and optimized production process has proposed active demand to improving thus.
The utility model content
[0003] the purpose of this utility model is: a kind of carbon fiber preheating dehydrating unit is provided, is intended to solve existing carbon fiber composite core wire and has in process of production that resin solidification is inhomogeneous, the slow-footed problem of pultrusion.
The purpose of this utility model is achieved in that
A kind of carbon fiber preheating dehydrating unit, described device comprises the device that the carbon fiber thigh is carried out contact heating, and the device that the carbon fiber thigh is carried out the convection type heating.
The described device that the carbon fiber thigh is carried out contact heating comprises three METAL HEATING PROCESS plugs; The described device that the carbon fiber thigh is carried out convection type heating comprises a pair of thermal current shower nozzle.
In described three METAL HEATING PROCESS plugs, the first heating plug places near the preheating dehydrating unit entrance; The second heating plug is located at the middle part of carbon fiber preheating dehydrating unit, and its position should guarantee that when the carbon fiber thigh passes from the space between the first heating plug, the second heating plug be parallel transmission; The 3rd heating plug is located near the outlet of preheating dehydrating unit, and its position will be a little more than the first heating plug.
The centre distance of described the first heating plug and the second heating plug is 192 mm.
The centre distance of described the second heating plug and the 3rd heating plug is 183 mm, and the angle that raises up of the line of centres is 12 °.
Described a pair of thermal current shower nozzle is arranged between the second heating plug and the 3rd plug, with convection type the carbon fiber thigh is improved temperature.
In the described a pair of thermal current shower nozzle, the first thermal current shower nozzle is 183 mm apart from preheating dehydrating unit outlet outer, and the second thermal current shower nozzle is 407 mm apart from preheating dehydrating unit entrance outer.
The side geometric shape of described heating plug is oval, and its shorter diameter is 60 mm, and longer diameter is 98 mm; The thickness of heating plug is 85 mm, and its positive upper and lower is the indent dome-shaped, and the radius of the radian of dome-shaped is 57 mm.
One end of described device is provided with the Conductivity of Fiber entrance, and described Conductivity of Fiber entrance is tubular body, and its inner internal chamber wall with the carbon fiber contact position is slope design, and inlet calibre is greater than the outlet bore.
The length of described Conductivity of Fiber entrance is 120 mm, and diameter of section is 40 mm; The width of its outlet is 10 mm, and the width of entrance is 25 mm, and the gradient of internal chamber wall is 22 °.
Outstanding advantages of the present utility model is: the utility model can be directly used in high purity carbon fiberreinforced composite conductor core pultrusion production line, under the prerequisite that does not reduce product quality and performances, significantly accelerate pultrusion speed, increase output, make fiber realize thermally equivalent, to reach the purpose of the even curing molding of resin matrix, modulus of shearing and bending modulus after accurately the control resinite solidifies simultaneously, to realize the best mechanical property of product, and can obviously be reduced in the void content in the resinite in the pultrusion process, use the defective in the time of effectively to bring into play advantage separately and eliminate separately use in the time of contact heating and convection type heating mode.
Description of drawings
Fig. 1 is the schematic diagram that carbon fiber preheating dehydrating unit that the utility model provides is applied to the compound cable core production line;
Fig. 2 is the three-dimensional view of the carbon fiber preheating dehydrating unit that provides of the utility model preferred embodiment;
Fig. 3 is the internal structure schematic diagram of the carbon fiber preheating dehydrating unit that provides of the utility model preferred embodiment;
Fig. 4 is the generalized section of the Conductivity of Fiber entrance of the utility model carbon fiber preheating dehydrating unit that preferred embodiment is provided;
Fig. 5 is the front view that the utility model provides the interior heating of the carbon fiber preheating dehydrating unit plug of preferred embodiment.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The carbon fiber preheating dehydrating unit that the utility model provides combines two kinds of mode of heatings simultaneously, i.e. convection type heating and contact heating have also improved the efficiency of heating surface when having guaranteed heating quality.
Fig. 1 shows the use state signal that described carbon fiber preheating dehydrating unit is applied to carbon fiber reinforce plastic reinforced electric cable core production line.Be the seamless link of realization with production line, described device A4 can place resin to contaminate between groove A6 and the fiber thread board A2, and avoids the obstruction to the tractive force of integral device as far as possible, must avoid in installation process the fiber surface injury.The carbon fiber spindle is fixed on the steel creel A1, and at the uniform velocity pull out via hauling machine A8, after the carbon fiber of pulling out from spindle accumulates thigh by thread board A2, enter the Conductivity of Fiber entrance A3 of described carbon fiber preheating dehydrating unit A4, after fiber strand A9 is through the preheating dehumidification treatments, enter successively again resin and contaminate groove A6, hot briquetting mould A7 and cooling shaping mould A11, obtain carbon fiber reinforce plastic with this and strengthen cable core.
Described carbon fiber preheating dehydrating unit inside both had been provided with for the device that the carbon fiber thigh is carried out contact heating, was useful on again the device that the carbon fiber thigh is carried out the convection type heating.
Fig. 2,3 shows respectively outward appearance and the internal structure of the carbon fiber preheating dehydrating unit that preferred embodiment of the present utility model provides.
In the utility model embodiment, the main body of described device is rectangle, and an end is provided with Conductivity of Fiber entrance A3, and the upper and lower of device is respectively arranged with the external interface of convection type heating shower nozzle A5, can input high temperature gas flow by this interface.In the present embodiment, described device for the carbon fiber thigh being carried out contact heating is mainly realized by three METAL HEATING PROCESS plugs, wherein, the first heating plug B1 can place near the Conductivity of Fiber entrance A3, the second heating plug B2 can be located at the middle part of carbon fiber preheating dehydrating unit, its position should guarantee that the carbon fiber thigh is from B1, it is parallel transmission when the space between B2 is passed, to reach the purpose that does not hinder tractive force, the 3rd heating plug B3 is located near the outlet of preheating dehydrating unit, its position will be a little more than the first heating plug B1, to realize that fiber strand can compare the close contact copper plug, so that the space between the carbon fiber diminishes.Describedly is realized by a pair of thermal current shower nozzle A5 for the device that the carbon fiber thigh is carried out convection type heating, described thermal current shower nozzle A5 is arranged between the second heating plug B2 and the 3rd plug B3, thermal current shower nozzle A5 can convection type to carbon fiber thigh raising temperature.
In the present embodiment, for conveniently gathering carbon fiber, described Conductivity of Fiber entrance A3 is tubular body, its internal structure as shown in Figure 4, with the internal chamber wall of carbon fiber contact position be slope design, be convenient to the gathering of carbon fiber thigh.
As preferred embodiment of the present utility model, the long a of described carbon fiber preheating dehydrating unit is 605.5mm, and wide b is 140.5mm, and high c is 155.5mm; The centre distance lb of the first heating plug B1, the second heating plug B2 is 192 mm; The centre distance la of the second heating plug B2 and the 3rd heating plug B3 is 183 mm, and the angle [alpha] that raises up of the line of centres is 12 °; The first thermal current shower nozzle is 183 mm apart from preheating dehydrating unit outlet outer lc, and the second thermal current shower nozzle is 407 mm apart from preheating dehydrating unit entrance outer ld.The length e of described Conductivity of Fiber entrance A3 is 120 mm, and diameter of section f is 40 mm; The width h1 of its outlet is 10 mm, and the width h2 of entrance is 25 mm, and the gradient θ of internal chamber wall is 22 °, and this design can be so that the space between the carbon fiber be minimum, thereby can improve heating effect and make the carbon fiber thermally equivalent; In addition, described Conductivity of Fiber entrance inside is preferably carried out polishing and is plated chromium alloy coating, thereby reaches the effect on the surface of protection carbon fiber.Described METAL HEATING PROCESS plug adopts metallic copper to realize, the side geometric shape of heating plug is oval (as shown in Figure 3), its shorter diameter Rv is 60 mm, longer diameter Rh is 98 mm, heats the front view of plug as shown in Figure 5, and the thickness Rt of heating plug is 85 mm, its upper and lower is designed to the indent dome-shaped, be convenient to the gathering of carbon fiber thigh and pass through smoothly, and can make heating effect better, the radius of the radian φ Rc of dome-shaped is 57 mm.In addition, described heating plug surface preferably also carries out polishing and plates chromium alloy coating, thus avoid contact during carbon fiber to the product surface injury, and reduce impact on tractive force, make the frictional force between fiber and the heating plug minimum.
By described carbon fiber preheating dehydrating unit, so that carbon fiber integral body was subject to balanced heating before entering resin impregnation tank, thereby make fiber thermal expansion degree everywhere identical.In the resin-dipping process, resin obtains essentially identical temperature by fiber surface, guarantees that simultaneously the adhesion characteristics of resinite is identical, makes like this under the condition of cure of equilibrium the result that the resinite of compound cable core is partly evenly solidified.Simultaneously, because carbon fiber played exsiccation by heating before contaminating resinite, can avoid humidity by fiber surface to enter resinite in the curing, can obviously reduce the voidage behind the resin solidification.
On the other hand, can significantly improve the speed of carbon fiber pultrusion by described carbon fiber preheating dehydrating unit.Carbon fiber needed necessary heat time heating time, namely when carbon fiber during at the uniform velocity by described carbon fiber preheating dehydrating unit, fiber temperature is heated to enough external object temperature (150 ℃) from room temperature (18 ℃), for guaranteeing that fiber is fully heated, the temperature of fiber core should be 127.5 ℃ simultaneously.In the prior art, under single convection type heating means, according to the hot propagation formula of its corresponding Fourier:
, wherein,
Be thermal diffusion coefficient [m2/s],
Be Fourier coefficient, t is time [s], r is the section radius [m] of fiber, v is temperature required [K], calculate as can be known through final, making the carbon fiber center reach about needed time of requirement temperature by the convection type heating is 107.3s, and the length a of corresponding described carbon fiber preheating dehydrating unit can learn that its corresponding pultrusion speed is 0.34m/min.And under single contact heating method, according to the hot propagation formula of its corresponding Fourier:
, calculate as can be known through final, making the carbon fiber thigh be heated to the needed time of desired temperature by contact heating is 19.7s, its highest corresponding pultrusion speed is 1.84m/min.
Contrast above two kinds of heating means, can learn that the temperature of the successful contact heating pattern promotes to(for) carbon fiber is faster than with respect to the convection type heating mode.Yet in the pultrusion process of reality, through experimental verification, the contact heating plug can produce certain influence of crust deformation for fiber strand, under higher pultrusion speed prerequisite, meeting so that the mechanical moduli of final products descended to a certain extent.And if use merely the convection type heating mode, under higher pultrusion speed, be difficult to make the carbon fiber thigh to reach the anticipation temperature equally, thereby can't realize promoting the purpose of whole pultrusion speed.So the utility model is used two kinds of heating modes simultaneously, so that can be the pultrusion speed of contact heating, i.e. 1.84m/min in the highest pultrusion speed in preheating dehumidifying stage.Because the maximum speed of at present steady and continuous production carbon fiber compound cable core still below 1.5m/min, so in process of production, can not affect the pultrusion speed that integral device has originally fully; Simultaneously, by preheating dehumidifying link, can effectively reduce for core time by the hot briquetting mould after contaminating resinite, thereby realize when improving the script pultrusion speed, still guaranteeing resin solidification quality and mechanical property that it is good.
The utility model can be directly used in high purity carbon fiberreinforced composite conductor core pultrusion production line, under the prerequisite that does not reduce product quality and performances, significantly accelerate pultrusion speed, increase output, make fiber realize thermally equivalent, to reach the purpose of the even curing molding of resin matrix, modulus of shearing and bending modulus after accurately the control resinite solidifies simultaneously, to realize the best mechanical property of product, and can obviously be reduced in the void content in the resinite in the pultrusion process, use the defective in the time of effectively to bring into play advantage separately and eliminate separately use in the time of contact heating and convection type heating mode.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a carbon fiber preheating dehydrating unit is characterized in that, described device comprises the device that the carbon fiber thigh is carried out contact heating, and the device that the carbon fiber thigh is carried out the convection type heating.
2. carbon fiber preheating dehydrating unit as claimed in claim 1 is characterized in that, the described device that the carbon fiber thigh is carried out contact heating comprises three METAL HEATING PROCESS plugs; The described device that the carbon fiber thigh is carried out convection type heating comprises a pair of thermal current shower nozzle.
3. carbon fiber preheating dehydrating unit as claimed in claim 2 is characterized in that, in described three METAL HEATING PROCESS plugs, the first heating plug places near the preheating dehydrating unit entrance; The second heating plug is located at the middle part of carbon fiber preheating dehydrating unit, and its position should guarantee that when the carbon fiber thigh passes from the space between the first heating plug, the second heating plug be parallel transmission; The 3rd heating plug is located near the outlet of preheating dehydrating unit, and its position will be a little more than the first heating plug.
4. carbon fiber preheating dehydrating unit as claimed in claim 3 is characterized in that, the centre distance of described the first heating plug and the second heating plug is 192 mm.
5. carbon fiber preheating dehydrating unit as claimed in claim 3 is characterized in that, the centre distance of described the second heating plug and the 3rd heating plug is 183 mm, and the angle that raises up of the line of centres is 12 °.
6. carbon fiber preheating dehydrating unit as claimed in claim 3 is characterized in that, described a pair of thermal current shower nozzle is arranged between the second heating plug and the 3rd plug, with convection type the carbon fiber thigh is improved temperature.
7. carbon fiber preheating dehydrating unit as claimed in claim 6, it is characterized in that, in the described a pair of thermal current shower nozzle, the first thermal current shower nozzle is 183 mm apart from preheating dehydrating unit outlet outer, and the second thermal current shower nozzle is 407 mm apart from preheating dehydrating unit entrance outer.
8. such as each described carbon fiber preheating dehydrating unit among the claim 2-7, it is characterized in that, the side geometric shape of described heating plug is oval, and its shorter diameter is 60 mm, and longer diameter is 98 mm; The thickness of heating plug is 85 mm, and its positive upper and lower is the indent dome-shaped, and the radius of the radian of dome-shaped is 57 mm.
9. carbon fiber preheating dehydrating unit as claimed in claim 1, it is characterized in that, an end of described device is provided with the Conductivity of Fiber entrance, and described Conductivity of Fiber entrance is tubular body, its inner internal chamber wall with the carbon fiber contact position is slope design, and inlet calibre is greater than the outlet bore.
10. carbon fiber preheating dehydrating unit as claimed in claim 9 is characterized in that, the length of described Conductivity of Fiber entrance is 120 mm, and diameter of section is 40 mm; The width of its outlet is 10 mm, and the width of entrance is 25 mm, and the gradient of internal chamber wall is 22 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220326288 CN202716392U (en) | 2012-06-19 | 2012-07-06 | Carbon fiber preheating dehumidification device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220288965.1 | 2012-06-19 | ||
| CN201220288965 | 2012-06-19 | ||
| CN 201220326288 CN202716392U (en) | 2012-06-19 | 2012-07-06 | Carbon fiber preheating dehumidification device |
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| Publication Number | Publication Date |
|---|---|
| CN202716392U true CN202716392U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220326288 Expired - Fee Related CN202716392U (en) | 2012-06-19 | 2012-07-06 | Carbon fiber preheating dehumidification device |
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| CN (1) | CN202716392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022000396A1 (en) * | 2020-07-01 | 2022-01-06 | 赵文娟 | Carbon fibre self-dehumidification-and-deoxygenation device, and low-temperature carbonisation furnace using same |
-
2012
- 2012-07-06 CN CN 201220326288 patent/CN202716392U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022000396A1 (en) * | 2020-07-01 | 2022-01-06 | 赵文娟 | Carbon fibre self-dehumidification-and-deoxygenation device, and low-temperature carbonisation furnace using same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20180706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |