CN104943245A - Carbon fiber wound graphite cylinder and machining process thereof - Google Patents
Carbon fiber wound graphite cylinder and machining process thereof Download PDFInfo
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- CN104943245A CN104943245A CN201510272032.1A CN201510272032A CN104943245A CN 104943245 A CN104943245 A CN 104943245A CN 201510272032 A CN201510272032 A CN 201510272032A CN 104943245 A CN104943245 A CN 104943245A
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Abstract
The invention discloses a carbon fiber wound graphite cylinder and a machining process thereof. The carbon fiber wound graphite cylinder comprises a graphite cylinder body and carbon fibers, wherein the carbon fibers wind the outer surface of the graphite cylinder body, and adopt one or a combination of more of loop line carbon fibers, inclined line carbon fibers and plain carbon fibers; the specific layer quantity and the winding sequence of the carbon fibers are determined according to the stress condition of the graphite cylinder body; and in a machining process, the carbon fibers winds the graphite cylinder body and are cured through resin. According to the carbon fiber wound graphite cylinder, the resistance to annular tensile stress or axial tension caused by inner pressure and torque and bending moment caused by radial external force of the graphite cylinder are improved, and the permeation resisting property of the graphite cylinder is improved.
Description
Technical field
The present invention relates to a kind of graphite cylinder and processing technology thereof, specifically a kind of carbon fiber winding graphite cylinder and processing technology thereof.
Background technology
Graphite material replaces carbon steel and precious metal material owing to having superior corrosion resistance, heat resistance and high thermal conductivity under being widely used in various corrosive materials condition.Wherein impermeable graphite material more because of can under low pressure, middle press strip part non-leakage gas, liquid and be widely used in manufacturing various tower, groove, tank, stove ... comprise graphite pressure vessel, thus facilitate industrial development.But graphite and impermeable graphite material are lower because of intensity, belong to again fragile material and when manufacturing large-scale internal pressure cylinder type equipment band serve strength problem.Not too large at some diameters, when interior pressure is lower, can takes to strengthen wall thickness measure, make it to become thick-walled vessel and solve; Slightly large at diameter, or interior pressure is slightly high, the occasion that temperature is not high again, can adopt the enhancement measures of additional stirrup or additional steel cylinder.But it is larger at diameter, especially under the condition that temperature is higher, thermal coefficient of expansion because of carbon steel is 2 ~ 3 times of impermeable graphite, and it is poor that additional stirrup or steel cylinder strengthen then effect, and obvious use-case is that Large Steel lining stone ink storage tank maintenance rate when temperature is higher increases; And therefore crystal vessel mostly is the low pressure vessel or non-pressure vessel that are less than 1Mpa.And along with the development of science and technology, need larger diameter or higher interior pressure, especially the corrosive atmosphere that serviceability temperature is higher also increases thereupon, now to adopt the effective cylindrical enhancement measures just needing to solve graphite cylinder during graphite material, and stirrup strengthen graphite barrel and stirrup temperature all higher time, invalid.But domestic there is no to our positive advance copy patented technology to graphite cylinder except stirrup (or steel cylinder) strengthen except other cylindrical Enhancement Method, thus be installed with standby diameter, the interior pressure of use and relevant temperature in graphite cylinder shape all limited, limit the development of graphite cylinder shape equipment.In addition, graphite material itself has micropore, is to improve permeability resistance by the way such as impregnating resin or carburizing, but permeability resistance is limited after all, uses when pressure is higher in gaseous state and also wishes the permeability resistance that can improve graphite material.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of carbon fiber winding graphite cylinder and processing technology thereof, the moment of torsion that the hoop tension that the internal pressure-resistant which increasing graphite cylinder causes or axial tension and footpath outward force cause, the ability of bending moment, and improve the permeability resistance of graphite cylinder.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of carbon fiber winding graphite cylinder, it is characterized in that: it comprises graphite cylinder and carbon fiber, described carbon fiber winding is at graphite cylinder outer surface.
As a kind of mode of the present invention, described carbon fiber is ring grain carbon fiber.
As a kind of mode of the present invention, described carbon fiber is twill carbon fiber.
As a kind of mode of the present invention, described carbon fiber is the combination of ring grain carbon fiber and twill carbon fiber.
As a kind of mode of the present invention, described carbon fiber is the combination of ring grain carbon fiber, twill carbon fiber and plain weave carbon fiber.
As a kind of mode of the present invention, the inclination angle of described twill carbon fiber is 10-80 degree.
A kind of processing technology of carbon fiber winding graphite cylinder, it is characterized in that comprising following steps: carbon fiber is soaked by liquid resin, apply the tension force of 10kgf to 50kgf by carbon fiber winding on the graphite cylinder be rotating by numerical control winding machine, then be cured.Described resin is thermosetting resin or thermoplastic resin, the combination of one or more that described thermosetting resin is phenolic resins, epoxy resin, phenol-formaldehyde resin modified, modified epoxy, span come in amide resin or thermoset polyimide resin, described thermoplastic resin is the combination of one or more in thermoplastic polyimide resin, polyetherimide resin, polysulfone resin or mylar.Plasticizer and/or diluent is added with in described resin.
The present invention compared with prior art, have the following advantages and effect: the present invention effectively improves tension, the bending strength of graphite cylinder wall hoop or axis and resists moment of torsion, moment of flexure ability, especially the effect that steel strengthen is greatly exceed when temperature is higher, efficiently solve the safe and reliable sex chromosome mosaicism of big-and-middle-sized graphite cylinder kind equipment under higher interior pressure and operating temperature, also improve the permeability resistance of graphite cylinder simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment 1 of a kind of carbon fiber winding graphite cylinder of the present invention.
Fig. 2 is the schematic diagram of the embodiment 2 of a kind of carbon fiber winding graphite cylinder of the present invention.
Fig. 3 is the schematic diagram of the embodiment 4 of a kind of carbon fiber winding graphite cylinder of the present invention.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, a kind of carbon fiber winding graphite cylinder, comprises graphite cylinder 1 and carbon fiber 2, and carbon fiber 2 is wrapped in graphite cylinder 1 outer surface.Wherein carbon fiber 2 can be the carbon fiber of 3 ~ 24K and preferred 12K, also can be carbon fiber tape or cloth.Wherein carbon fiber 2 is ring grain carbon fiber.
Embodiment 2:
As shown in Figure 2, a kind of carbon fiber winding graphite cylinder, comprises graphite cylinder 1 and carbon fiber 2, and carbon fiber 2 is wrapped in graphite cylinder 1 outer surface, and wherein carbon fiber 2 is twill carbon fiber, and twill carbon fiber inclination angle is 10-80 degree.
Embodiment 3:
A kind of carbon fiber winding graphite cylinder, comprise graphite cylinder 1 and carbon fiber 2, carbon fiber 2 is wrapped in graphite cylinder 1 outer surface, and wherein carbon fiber 2 is the combination of ring grain carbon fiber and twill carbon fiber, and twill carbon fiber inclination angle is 10-80 degree.Wherein the winding order of ring grain carbon fiber and twill carbon fiber is determined according to graphite cylinder force-bearing situation.
Embodiment 4:
As shown in Figure 3, a kind of carbon fiber winding graphite cylinder, comprise graphite cylinder 1 and carbon fiber 2, carbon fiber 2 is wrapped in graphite cylinder 1 outer surface, wherein carbon fiber 2 is the combination of ring grain carbon fiber, twill carbon fiber and plain weave carbon fiber, and twill carbon fiber inclination angle is 10-80 degree.Wherein the winding order of ring grain carbon fiber, twill carbon fiber and plain weave carbon fiber is determined according to graphite cylinder force-bearing situation.
A kind of processing technology of carbon fiber winding graphite cylinder, in manufacture process, first carbon fiber 2 is soaked with liquid resin, then after adopting numerical control winding machine to apply to give the tension force of 10kgf to 50kgf to carbon fiber 2, be wound into the graphite cylinder cylindrical of rotation, and regulated and controled the winding angle of carbon fiber by the velocity of displacement of supporting traveller.
When main purpose is for improving cylinder ring to tensile strength, the displacement of traveller can be less, to make carbon fiber close to circularizing distribution.When being mainly raising torque resistant ability, the displacement strengthening traveller makes it become twill to improve carbon fiber lamination angle (such as to 35 ° ~ 45 °), and cross winding becomes grid.When to take into account simultaneously improve hoop tensile strength time, then can strengthen lamination angle (such as 45 ° ~ 80 °); When to take into account simultaneously improve axial tensile-strength time, then lamination angle can be made to be 20 ° ~ 30 °
Wherein carbon fiber first can be wound into (i.e. Wet Winding Process) on graphite tube again at winding scene after liquid thermosetting resin solution soaks, and is then heating and curing in curing oven or still; Also can directly treated carbon fiber be directly wound around.Thermosetting resin used and additive, and winding operation, determined by concrete application conditions.
When requiring to be wound around rear raising graphite tube permeability resistance simultaneously, preferentially select Wet Winding Process, realize with increase resin content and preferable additives.
Above content described in this description is only made for the present invention illustrating.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from the content of description of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (9)
1. a carbon fiber winding graphite cylinder, is characterized in that: it comprises graphite cylinder and carbon fiber, and described carbon fiber winding is at graphite cylinder outer surface.
2. according to a kind of carbon fiber winding graphite cylinder according to claim 1, it is characterized in that: described carbon fiber is ring grain carbon fiber.
3. according to a kind of carbon fiber winding graphite cylinder according to claim 1, it is characterized in that: described carbon fiber is twill carbon fiber.
4. according to a kind of carbon fiber winding graphite cylinder according to claim 1, it is characterized in that: described carbon fiber is the combination of ring grain carbon fiber and twill carbon fiber.
5. according to a kind of carbon fiber winding graphite cylinder according to claim 1, it is characterized in that: described carbon fiber is the combination of ring grain carbon fiber, twill carbon fiber and plain weave carbon fiber.
6. according to a kind of carbon fiber winding graphite cylinder according to any one of claim 3,4,5, it is characterized in that: the inclination angle of described twill carbon fiber is 10-80 degree.
7. the processing technology of carbon fiber winding graphite cylinder described in a claim 1, it is characterized in that comprising following steps: carbon fiber is soaked by liquid resin, apply the tension force of 10kgf to 50kgf by carbon fiber winding on the graphite cylinder be rotating by numerical control winding machine, then be cured.
8. according to the processing technology of a kind of carbon fiber winding graphite cylinder according to claim 7, it is characterized in that: described resin is thermosetting resin or thermoplastic resin, the combination of one or more that described thermosetting resin is phenolic resins, epoxy resin, phenol-formaldehyde resin modified, modified epoxy, span come in amide resin or thermoset polyimide resin, described thermoplastic resin is the combination of one or more in thermoplastic polyimide resin, polyetherimide resin, polysulfone resin or mylar.
9., according to the processing technology of a kind of carbon fiber winding graphite cylinder according to claim 7, it is characterized in that: in described resin, be added with plasticizer and/or diluent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510272032.1A CN104943245A (en) | 2015-05-26 | 2015-05-26 | Carbon fiber wound graphite cylinder and machining process thereof |
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| CN201510272032.1A CN104943245A (en) | 2015-05-26 | 2015-05-26 | Carbon fiber wound graphite cylinder and machining process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647116A (en) * | 2015-12-10 | 2016-06-08 | 湖北鸿宇复合碳纤维科技有限公司 | Carbon fiber composite material for manufacturing pressure vessels |
| CN107588247A (en) * | 2017-09-05 | 2018-01-16 | 南通山剑石墨设备有限公司 | A kind of carbon fiber winding graphite cylinder and its manufacture craft |
| CN110526730A (en) * | 2019-09-12 | 2019-12-03 | 北京动力机械研究所 | A kind of reinforced graphite heating element structure and preparation method thereof |
| CN111875402A (en) * | 2020-07-23 | 2020-11-03 | 西安超码科技有限公司 | Fiber winding reinforced graphite heating tube structure and preparation method thereof |
| CN112778012A (en) * | 2021-01-08 | 2021-05-11 | 中国科学院上海应用物理研究所 | Preparation method of high-temperature molten salt pipeline |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647116A (en) * | 2015-12-10 | 2016-06-08 | 湖北鸿宇复合碳纤维科技有限公司 | Carbon fiber composite material for manufacturing pressure vessels |
| CN107588247A (en) * | 2017-09-05 | 2018-01-16 | 南通山剑石墨设备有限公司 | A kind of carbon fiber winding graphite cylinder and its manufacture craft |
| CN110526730A (en) * | 2019-09-12 | 2019-12-03 | 北京动力机械研究所 | A kind of reinforced graphite heating element structure and preparation method thereof |
| CN111875402A (en) * | 2020-07-23 | 2020-11-03 | 西安超码科技有限公司 | Fiber winding reinforced graphite heating tube structure and preparation method thereof |
| CN112778012A (en) * | 2021-01-08 | 2021-05-11 | 中国科学院上海应用物理研究所 | Preparation method of high-temperature molten salt pipeline |
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Application publication date: 20150930 |