CN104047072A - Spinning apparatus of carbon fiber - Google Patents
Spinning apparatus of carbon fiber Download PDFInfo
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- CN104047072A CN104047072A CN201310083325.6A CN201310083325A CN104047072A CN 104047072 A CN104047072 A CN 104047072A CN 201310083325 A CN201310083325 A CN 201310083325A CN 104047072 A CN104047072 A CN 104047072A
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- carbon fiber
- spinning
- asphalt
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- asphalt base
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Abstract
A spinning apparatus of carbon fiber. The spinning apparatus of carbon fiber contains an extrusion part, a winding wheel and a thermal insulation part. The extrusion part contains a heating cavity, a die head and a filter part, and is used for extruding to form pitch-based carbon fiber, wherein the formation direction of pitch-based carbon fiber is parallel to the extrusion direction of a molten asphalt raw material. The filter part is arranged inside the die head, and the winding wheel is used for rolling-up the pitch-based carbon fiber. The thermal insulation part contains at least three thermocouples, wherein each thermocouple has a first end and a second end which are opposite to each other. The first end faces the die head, and the second end faces the winding wheel. Each thermocouple is parallel to the formation direction. There is a distance between the second end of each thermocouple and the winding wheel, and the distance is used for cooling the pitch-based carbon fiber.
Description
Technical field
The invention relates to a kind of device for spinning, and particularly relevant for a kind of device for spinning of carbon fiber.
Prior art
Progress along with material science, industrial often by preparing composite in conjunction with several materials, so that prepared composite can have the advantage of several materials concurrently simultaneously, wherein more common composite is to utilize the high strength of carbon fiber and the characteristic of high mode to carry out reinforcement macromolecular material, to form carbon fiber reinforcement macromolecule (Carbon Fiber Reinforced Polymer; CFRP).Because CFRP has the characteristic of macromolecular material and carbon fiber concurrently, so CFRP is extensively applied in various fields.
Yet the diameter of carbon fiber and length have great impact for the characteristic of carbon fiber, therefore, in the manufacturing process of carbon fiber, the composition of raw material and manufacturing conditions all can affect diameter and the length of carbon fiber, and then affect the characteristic of carbon fiber.
According to the difference of the manufacture raw material of carbon fiber, carbon fibre material can be categorized as polyacrylonitrile-based carbon fibre (polyacrylonitrile carbon fiber) and asphalt base carbon fiber (pitch carbon fiber), wherein polyacrylonitrile-based carbon fibre is when modulus is 200Gpa, there is preferably intensity, yet while increasing along with the modulus of polyacrylonitrile-based carbon fibre, its intensity can decline thereupon, and the high mode of polyacrylonitrile-based carbon fibre only can reach 600GPa.In comparison, the modulus of asphalt base carbon fiber can reach the theoretical modulus (1000GPa) of graphite, and asphalt base carbon fiber has preferably heat conductivity and electric conductivity.
Yet in the manufacturing process of asphalt base carbon fiber, because the molecular weight distribution of used asphalt stock is extremely wide and composition differs, so the contained impurity of asphalt stock often causes asphalt base carbon fiber to produce defect.Moreover asphalt stock contains hard aromatic component, make asphalt base carbon fiber in manufacturing process, easily produce discontinuous phase, cause asphalt base carbon fiber cannot form continuous long carbon fine, and affect the characteristic of asphalt base carbon fiber.
In view of this, need provide a kind of device for spinning of carbon fiber, to improve the defect of known device for spinning, thereby provide the continuous long carbon fiber with good nature.
Summary of the invention
Therefore, an embodiment of the present invention is to provide a kind of device for spinning of carbon fiber, it utilizes heat preservation component to carry out heating and thermal insulation asphalt base carbon fiber, to produce orientation mechanism, thereby can eliminate the middle phase that asphalt base carbon fiber produces in spinning process, and then can form the continuous long carbon fiber of asphalt base carbon fiber, therefore can promote the character of asphalt base carbon fiber.
According to above-mentioned embodiment of the present invention, a kind of device for spinning of carbon fiber is proposed.In one embodiment, the device for spinning of this carbon fiber comprises extrudes parts, winding wheel and heat preservation component, wherein extrudes parts in order to extrude formation asphalt base carbon fiber, and extrudes parts and comprise heating cavity, die head and filter element.Heating cavity is in order to molten asphalt raw material, and forms molten asphalt raw material, and wherein asphalt stock has softening temperature.Above-mentioned die head is with so that molten asphalt raw material forms asphalt base carbon fiber, and wherein the parallel molten asphalt raw material of formation direction of asphalt base carbon fiber extrudes direction.Filter element is arranged in die head, and with filtering molten asphalt stock, and winding wheel is in order to furl asphalt base carbon fiber.Aforesaid heat preservation component contains at least three and adds thermocouple, each adds thermocouple and has relative first end and the second end, wherein first end is towards die head, and the second end is towards winding wheel, and each adds thermocouple and is parallel to formation direction, and asphalt base carbon fiber to the distance that each adds thermocouple equates wherein between the second end and winding wheel, there is a distance apart, in order to cooling asphalt base carbon fiber.Above-mentioned heat preservation component is for making asphalt base carbon fiber produce orientation mechanism, and the diameter of asphalt base carbon fiber is more than or equal to 10 μ m and be less than or equal to 50 μ m, and the length of asphalt base carbon fiber is greater than ten thousand metres.
According to one embodiment of the invention, above-mentioned molten asphalt raw material is melting coal tar asphalt or tekite oil asphalt.
According to another embodiment of the present invention, above-mentioned die head is funnel-form die head.
According to further embodiment of this invention, above-mentioned filter element is filter screen.
According to yet another embodiment of the invention, the material of above-mentioned filter screen is metallic aluminium.
According to yet another embodiment of the invention, softening temperature is for being more than or equal to 250 ℃ and be less than or equal to 350 ℃.
According to yet another embodiment of the invention, the temperature of heating cavity is for being more than or equal to (softening temperature+20 ℃) and being less than or equal to (softening temperature+80 ℃).
According to yet another embodiment of the invention, the above-mentioned temperature that adds thermocouple is for being more than or equal to (softening temperature-200 ℃) and being less than or equal to (softening temperature-50 ℃).
According to yet another embodiment of the invention, the material of above-mentioned winding wheel is metal.
According to yet another embodiment of the invention, the material of above-mentioned winding wheel is macromolecular material.
According to yet another embodiment of the invention, when 20 ℃ and frequency are 1kHz, the dielectric constant of aforesaid macromolecular material is for being more than or equal to 1.5 and be less than or equal to 12.
According to yet another embodiment of the invention, aforesaid macromolecular material can be including but not limited to phenolic resins, nylon, polycarbonate resin, polyethylene terephthalate, low density polyethylene (LDPE), linear low density polyethylene, high density polyethylene (HDPE), ultra-high molecular weight polyethylene, polyamide macromolecule, acryl plastics, lucite (Plexiglas), polypropylene, polystyrene, any combination of fluoridizing macromolecule, chloride plastic and above-mentioned material.
According to yet another embodiment of the invention, above-mentioned fluoridize macromolecule and can include but not limited to fluorinated ethylene propylene copolymer (fluorinated ethylene-propylene; FEP), polytrifluorochloroethylene (polycholorotrifluoro-ethylene; PCTFE), polytetrafluoroethylene (PTFE) (polytetrafluoroethylene; PTFE), polyvinyl fluoride (polyvinylfluoride; PVF), poly-difluoroethylene (polyvinylidenefluoride; PVDF) and any combination of above-mentioned material.
According to yet another embodiment of the invention, above-mentioned chloride plastic can include but not limited to polyvinyl chloride, polyvinylidene chloride (polyvinylidenechloride; PVDC) and any combination of above-mentioned material.
The device for spinning of carbon fiber of the present invention is disclosed, it utilizes heat preservation component to carry out heated asphalt base carbon fibre, makes asphalt base carbon fiber form the effect of extending, to produce orientation mechanism, thereby can promote the directionality of asphalt base carbon fiber, and then can promote the performance of asphalt base carbon fiber.
Moreover, the present invention utilizes the winding wheel that macromolecular material is made to furl asphalt base carbon fiber, and carry out adsorptive pitch base carbon fibre by furling produced static, thereby can make asphalt base carbon fiber concentrate, be difficult for flying away, and then can avoid asphalt base carbon fiber to rupture because of the scrolling of winding wheel.
Accompanying drawing explanation
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, appended graphic being described as follows:
Fig. 1 is the cutaway view illustrating according to the device for spinning of the carbon fiber of one embodiment of the invention.
Fig. 2 is the front view illustrating according to the device for spinning of the carbon fiber of one embodiment of the invention.
Fig. 3 is the cutaway view that illustrates the device for spinning of a kind of carbon fiber dissecing along Fig. 2 section line A-A.
Fig. 4 is for showing the sweep electron microscope figure of the asphalt base carbon fiber of application examples 2 of the present invention.
Fig. 5 is for showing the sweep electron microscope figure of the asphalt base carbon fiber of application examples 2 of the present invention.
Embodiment
Below hash out manufacture and the use of the embodiment of the present invention.Yet, being understandable that, embodiment provides many applicable inventive concepts, and it may be implemented in certain content miscellaneous.The specific embodiment of discussing is only for explanation, not in order to limit scope of the present invention.
Please refer to Fig. 1 and Fig. 2, it illustrates respectively cutaway view and front view according to the device for spinning 100 of the carbon fiber of one embodiment of the invention.Device for spinning 100 comprises support 102, extrudes parts 200, winding wheel 400, heat preservation component 500 and motor 700.Extrude parts 200 and be arranged on support 102, and form asphalt base carbon fiber 300 in order to extrude, and extrude parts 200 and comprise heating cavity 202, die head 204 and filter element 206.Heating cavity 202 is in order to molten asphalt raw material, and forms molten asphalt raw material, and wherein asphalt stock has softening temperature.Aforesaid asphalt stock can be coal tar asphalt or asphalt, and the softening temperature of asphalt stock can be more than or equal to 250 ℃ and be less than or equal to 350 ℃.The temperature of heating cavity can be more than or equal to (softening temperature+20 ℃) and be less than or equal to (softening temperature+80 ℃).Aforesaid die head 204 use are so that molten asphalt raw material forms asphalt base carbon fiber 300, and wherein the parallel molten asphalt raw material of formation direction of asphalt base carbon fiber 300 extrudes direction 204a.Die head 204, for funnel-form die head or other have the die head of suitable shape, so that the composition of molten asphalt raw material carries out orientation, and is conducive to form continuous long carbon fiber.206 of filter elements are arranged in die head 204, the pitch close-burning thing producing with filtering molten asphalt stock Yin Gaowen.Filter element 206 can be filter screen, and the material of this filter screen is metal material such as aluminium, stainless steel etc.Winding wheel 400 is used for furling asphalt base carbon fiber 300.The material of winding wheel 400 can be any combination of metal material, macromolecular material, other suitable material and above-mentioned material.When if the material of winding wheel 400 is macromolecular material, under the environment that is 1kHz in 20 ℃ and frequency, the dielectric constant of this macromolecular material can be more than or equal to 1.5 and be less than or equal to 12.Aforesaid macromolecular material can be including but not limited to phenolic resins, nylon, polycarbonate resin, polyethylene terephthalate, low density polyethylene (LDPE), linear low density polyethylene, high density polyethylene (HDPE), ultra-high molecular weight polyethylene, polyamide macromolecule, acryl plastics, lucite, polypropylene, polystyrene, any combination of fluoridizing macromolecule, chloride plastic and above-mentioned material.The aforesaid macromolecule of fluoridizing can be including but not limited to any combination of fluorinated ethylene propylene copolymer, polytrifluorochloroethylene, polytetrafluoroethylene (PTFE), polyvinyl fluoride, poly-difluoroethylene and above-mentioned material.Above-mentioned chloride plastic can be including but not limited to any combination of polyvinyl chloride, polyvinylidene chloride and above-mentioned material.
Aforesaid heat preservation component 500 comprises at least three and adds thermocouple 502 and arc 504.Each adds thermocouple 502 for respectively to weld, to lock, to fix and other can reach fixing mode and is fixed on arc 504,504 of arcs are for to be fixed on support 102 by bracing frame 506, and wherein bracing frame 506 can weld, lock, fixes and other can reach fixing mode and fixes on support 102.Each adds thermocouple 502 and has relative first end 502a and the second end 502b, and wherein first end 502a is towards die head 204, the second end 502b towards winding wheel 400, and each adds thermocouple 502 for being parallel to the formation direction 300a of asphalt base carbon fiber 300.Adding the second end 502b of thermocouple 502 and 400 of winding wheels has distance 600 apart, is used for cooling asphalt base carbon fiber 300, to avoid asphalt base carbon fiber 300 to be attached on together.These temperature that add thermocouple 502 can be and are more than or equal to (softening temperature-200 ℃) and are less than or equal to (softening temperature-50 ℃).700, aforesaid motor sees through rotating shaft 702 and rotates winding wheel 400, to reach the object that furls asphalt base carbon fiber 300.
Asphalt stock is owing to having more aromatic series composition, and cause asphalt stock to be vulnerable to the impact of these hard aromatic series compositions and to produce the situation being separated in spinning process, and then make formed asphalt base carbon fiber cannot form continuous phase, easily fracture of wire, therefore cannot form long carbon filament.Above-mentioned 502 of the thermocouples that add are in not contacting under the situation of asphalt base carbon fiber, by heating and thermal insulation, make aforesaid asphalt base carbon fiber 300 produce the effect of extending, thereby make the hard composition of asphalt base carbon fiber produce orientation mechanism, and then can eliminate the situation being separated, therefore can form continuous long carbon fiber.
Please refer to Fig. 3, it is the cutaway view that illustrates the device for spinning of a kind of carbon fiber dissecing along Fig. 2 section line A-A.The thermocouple 502 that adds of heat preservation component 500 is individually fixed on arc 504, and arc 504 is fixed on support 102 by bracing frame 506, wherein asphalt base carbon fiber 300 to each add distance 300b, the 300c of thermocouple 502 and 300d for equating.
According to the diameter of the prepared asphalt base carbon fiber of device for spinning of above-mentioned carbon fiber of the present invention, can be more than or equal to 10 μ m and be less than or equal to 50 μ m, and the length of asphalt base carbon fiber is greater than ten thousand metres.
In some application examples, the present invention is by approximately 70 ℃ of softening temperatures and the quinoline coal tar asphalt raw material that insoluble matter is less than 1% of giving repeated exhortations, in the high-temperature kettle of 300 ℃ to 350 ℃, carry out upgrading, and form the asphalt stock that softening temperature is 286 ℃ (application examples 1), 268 ℃ (application examples 2), 268 ℃ (application examples 3), 318 ℃ (comparative example 1) and 288 ℃ (comparative examples 2).Then, respectively at 1000s
-1to 10000s
-1scope in measure the Dynamic Viscosity of the asphalt stock of application examples 1 to 3 and comparative example 1 and 2.Its result is as shown in table 1.
Then, aforesaid asphalt stock is carried out to spinning by the device for spinning of carbon fiber of the present invention, measure length and the diameter of its continuous carbon fibre, and observe its rolling situation, wherein application examples 1 is 150 ℃ to the Temperature Setting that adds thermocouple of application examples 3, and comparative example 1 is not opened and added thermocouple with comparative example 2.Aforesaid measurement is as shown in table 1, and wherein " zero " represents that asphalt base carbon fiber furls when winding wheel, and carbon fiber is concentrated and not flown away, Er “ ╳ " represent that asphalt base carbon fiber furls when winding wheel, carbon fiber is fly away and be difficult for concentrating.
Please refer to the result of Fig. 4, Fig. 5 and table 1, wherein Fig. 4 and Fig. 5 are the sweep electron microscope figure of the asphalt base carbon fiber that shows application examples 2 of the present invention, and the length of its medium scale rule represents respectively 200 μ m and 50 μ m.The continuous carbon fibre length that application examples 1 to the asphalt base carbon fiber of application examples 3 can form is greater than ten thousand metres, and its carbon fiber diameter can be reduced to 35 μ m and 10 μ m to 12 μ m.Yet comparative example 1 only can reach 1000 to 1500 meters with the continuous carbon fibre length that comparative example 2 can form, and the diameter of its carbon fiber only can be contracted to 100 μ m.Therefore, known according to the result of table 1, open the effect that thermocouple can make asphalt base carbon fiber generation extend that adds of heat preservation component, thereby can form orientation mechanism, and then be conducive to form continuous long carbon fiber.
Moreover, known with the result of the rolling situation of application examples 3 according to application examples 2, the asphalt base carbon fiber of application examples 2 cannot be concentrated and furl on metal winding wheel, and application examples 3 utilizes the winding wheel that macromolecular material is made to furl asphalt base carbon fiber, and carry out adsorptive pitch base carbon fibre by furling produced static, thereby can make asphalt base carbon fiber concentrate on winding wheel.
From the above embodiment of the present invention, the device for spinning of carbon fiber of the present invention utilizes heat preservation component, under the situation that does not contact asphalt base carbon fiber, carbon fiber is carried out to heating and thermal insulation, make asphalt base carbon fiber produce the effect of extending, and form orientation mechanism, thereby can promote the directionality of asphalt base carbon fiber, and then can form continuous long carbon fiber, therefore can promote the character of asphalt base carbon fiber.
Moreover, the device for spinning of carbon fiber of the present invention furls asphalt base carbon fiber by the made winding wheel of macromolecular material, and utilize and to furl produced static and carry out adsorptive pitch base carbon fibre, thereby can make asphalt base carbon fiber concentrate on winding wheel, and then can avoid asphalt base carbon fiber to rupture because of the scrolling of winding wheel.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention; in the technical field of the invention any have conventionally know the knowledgeable; without departing from the spirit and scope of the present invention; should be used for a variety of modifications and variations, so protection scope of the present invention is when being as the criterion depending on the claim person of defining who encloses.
Table 1
Primary clustering symbol description
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Claims (14)
1. a device for spinning for carbon fiber, comprises:
Extrude parts, to extrude formation asphalt base carbon fiber, comprise:
Heating cavity, in order to molten asphalt raw material, and forms molten asphalt raw material, and wherein this asphalt stock has softening temperature;
Die head, with so that this molten asphalt raw material forms this asphalt base carbon fiber, wherein parallel this molten asphalt raw material of formation direction of this asphalt base carbon fiber extrudes direction; And
Filter element, is located in this die head, to filter this molten asphalt raw material;
Winding wheel, in order to furl this asphalt base carbon fiber; And
Heat preservation component, contain at least three and add thermocouple, wherein described in each, add thermocouple and there is relative first end and the second end, this first end is towards this die head, and this second end, towards this winding wheel, is parallel to this formation direction and add thermocouple described in each, and this asphalt base carbon fiber to the distance that adds thermocouple described in each is what equate, wherein between this second end and this winding wheel, there is a distance apart, in order to cooling this asphalt base carbon fiber, and
Wherein this heat preservation component is with so that this asphalt base carbon fiber produces orientation mechanism, thus the diameter of this asphalt base carbon fiber for being more than or equal to 10 μ m and being less than or equal to 50 μ m, and the length of this asphalt base carbon fiber is greater than ten thousand metres.
2. the device for spinning of carbon fiber as claimed in claim 1, wherein this asphalt stock is coal tar asphalt or asphalt.
3. the device for spinning of carbon fiber as claimed in claim 1, wherein this die head is funnel-form die head.
4. the device for spinning of carbon fiber as claimed in claim 1, wherein this filter element is filter screen.
5. the device for spinning of carbon fiber as claimed in claim 4, wherein the material of this filter screen is metallic aluminium.
6. the device for spinning of carbon fiber as claimed in claim 1, wherein this softening temperature is for being more than or equal to 250 ℃ and be less than or equal to 350 ℃.
7. the device for spinning of carbon fiber as claimed in claim 6, wherein the temperature of this heating cavity is for being more than or equal to (these softening temperature+20 ℃) and being less than or equal to (these softening temperature+80 ℃).
8. the device for spinning of carbon fiber as claimed in claim 6, the wherein said temperature that adds thermocouple is for being more than or equal to (these softening temperature-200 ℃) and being less than or equal to (these softening temperature-50 ℃).
9. the device for spinning of carbon fiber as claimed in claim 1, wherein the material of this winding wheel is metal.
10. the device for spinning of carbon fiber as claimed in claim 1, wherein the material of this winding wheel is macromolecular material.
The device for spinning of 11. carbon fibers as claimed in claim 10, wherein when 20 ℃ and frequency are 1kHz, the dielectric constant of this macromolecular material is for being more than or equal to 1.5 and be less than or equal to 12.
The device for spinning of 12. carbon fibers as claimed in claim 11, wherein this macromolecular material is selected from by phenolic resins, nylon, polycarbonate resin, polyethylene terephthalate, low density polyethylene (LDPE), linear low density polyethylene, high density polyethylene (HDPE), ultra-high molecular weight polyethylene, polyamide macromolecule, acryl plastics, lucite (Plexiglas), polypropylene, polystyrene, fluoridizes the group that macromolecule, chloride plastic and above-mentioned any combination form.
The device for spinning of 13. carbon fibers as claimed in claim 12, wherein this is fluoridized macromolecule and is selected from fluorinated ethylene propylene copolymer (fluorinated ethylene-propylene; FEP), polytrifluorochloroethylene (polycholorotrifluoro-ethylene; PCTFE), polytetrafluoroethylene (PTFE) (polytetrafluoroethylene; PTFE), polyvinyl fluoride (polyvinylfluoride; PVF), poly-difluoroethylene (polyvinylidenefluoride; PVDF) and the group that forms of above-mentioned any combination.
The device for spinning of 14. carbon fibers as claimed in claim 12, wherein this chloride plastic is selected from polyvinyl chloride, polyvinylidene chloride (polyvinylidenechloride; PVDC) and the group that forms of above-mentioned any combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310083325.6A CN104047072B (en) | 2013-03-15 | 2013-03-15 | The device for spinning of carbon fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310083325.6A CN104047072B (en) | 2013-03-15 | 2013-03-15 | The device for spinning of carbon fiber |
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| CN104047072A true CN104047072A (en) | 2014-09-17 |
| CN104047072B CN104047072B (en) | 2016-06-29 |
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| CN201310083325.6A Expired - Fee Related CN104047072B (en) | 2013-03-15 | 2013-03-15 | The device for spinning of carbon fiber |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332601A (en) * | 1979-01-12 | 1982-06-01 | Akzo N.V. | Method for making silica fibers |
| JPS6170015A (en) * | 1984-04-27 | 1986-04-10 | Tousoku Seimitsu Kogyo Kk | Spinning machine for carbon yarn |
| CN1124041A (en) * | 1993-05-24 | 1996-06-05 | 考脱沃兹纤维(控股)有限公司 | Jet assembly |
| CN1339073A (en) * | 1999-01-29 | 2002-03-06 | 纳幕尔杜邦公司 | High speed melt spinning of fluoropolymer fibers |
| CN201010707Y (en) * | 2007-03-22 | 2008-01-23 | 陈泉锋 | Preoriented filament spinning machine for recycling polyester bottle slice |
-
2013
- 2013-03-15 CN CN201310083325.6A patent/CN104047072B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332601A (en) * | 1979-01-12 | 1982-06-01 | Akzo N.V. | Method for making silica fibers |
| JPS6170015A (en) * | 1984-04-27 | 1986-04-10 | Tousoku Seimitsu Kogyo Kk | Spinning machine for carbon yarn |
| CN1124041A (en) * | 1993-05-24 | 1996-06-05 | 考脱沃兹纤维(控股)有限公司 | Jet assembly |
| CN1339073A (en) * | 1999-01-29 | 2002-03-06 | 纳幕尔杜邦公司 | High speed melt spinning of fluoropolymer fibers |
| CN201010707Y (en) * | 2007-03-22 | 2008-01-23 | 陈泉锋 | Preoriented filament spinning machine for recycling polyester bottle slice |
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| CN104047072B (en) | 2016-06-29 |
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