CN115161779A - Dry-jet wet-spun 48K carbon fiber precursor rapid filament-combining preparation device and rapid preparation method - Google Patents
Dry-jet wet-spun 48K carbon fiber precursor rapid filament-combining preparation device and rapid preparation method Download PDFInfo
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- CN115161779A CN115161779A CN202210893032.3A CN202210893032A CN115161779A CN 115161779 A CN115161779 A CN 115161779A CN 202210893032 A CN202210893032 A CN 202210893032A CN 115161779 A CN115161779 A CN 115161779A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
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Abstract
The invention discloses a device and a method for preparing a 48K carbon fiber precursor through dry-jet wet spinning rapid filament combination. The device comprises three stages of wire combining devices which are respectively as follows: the first stage of yarn combining device is used for fiber equal-width paving and interlacing, the second stage of yarn combining device is used for compressed air interlacing, and the third stage of yarn combining device is used for folded yarn channel interlacing. 4 bundles of 12K small tows pass through a 3-level filament-combining device, and are sequentially in the forms of fiber equal-width flat laying and interlacing, compressed air interlacing and folding filament channel interlacing, so that the tows are interlaced with each other, and the rapid filament-combining preparation of dry-jet wet-spun 48K protofilaments is realized.
Description
Technical Field
The invention relates to the technical field of carbon fiber precursor production, in particular to a device and a method for preparing 48K carbon fiber precursor through dry-jet wet spinning quick filament combination.
Background
The carbon fiber as a novel inorganic fiber material has the inherent nature of a carbon material, has the soft processability of textile fiber, has a plurality of excellent performances such as high strength, high modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electric conduction, heat transfer, small thermal expansion coefficient and the like, can be used as a structural material for bearing load, can also be used as a functional material for playing a role, is an indispensable structural material and corrosion-resistant material for developing advanced technologies such as aviation, aerospace, missile rocket and the like, and is a novel material updated in the civil industry.
At present, the carbon fiber products produced globally mainly comprise small tow precursors, and the large tow precursors are mainly mature in wet spinning at present, and dry-jet wet spinning has incomparable performance advantages compared with wet spinning, but the dry-jet wet spinning technology of the large tow is not overcome. Therefore, the development of a production method of the large K-bundle precursor is imminent.
Disclosure of Invention
In order to overcome the situation that tows can be branched and tows broken filaments are increased after protofilament doubling, the invention provides a preparation device for quickly doubling the 48K carbon protofilaments by dry-jet wet spinning, and high-quality production of the 24K protofilaments is realized by utilizing a three-stage tandem doubling device.
The technical method for solving the technical problem is as follows:
the utility model provides a dry jet wet spinning 48K carbon fiber precursor closes silk preparation facilities fast, includes that tertiary silk device of closing is respectively: the first stage of yarn combining device is used for fiber equal-width paving and interlacing, the second stage of yarn combining device is used for compressed air interlacing, and the third stage of yarn combining device is used for folded yarn channel interlacing.
Further, the second-stage filament combining device is as follows: the air interlacing device is a ring device with various shapes, the aperture is 4-25mm, and the number of holes is as follows: 2-15.
The specific shape is round, rectangular or triangular.
A rapid preparation method of a rapid filament-combining preparation device for a basic dry-jet wet-spun 48K carbon fiber precursor comprises the specific steps of forming 1 bundle of 48K filaments through a first-stage filament-combining device;
passing through a second-stage filament-combining device, continuously interlacing the filament bundles for 10-40cm, and enabling the filament bundles to pass through the center of an interlacing device;
and through a third stage of yarn combination device, 48K yarns subjected to air interlacing form interlacing again in the folded yarn channel.
Further, the working process of the first-stage wire combining device is as follows: making 4 12 filaments, and forming the same widening width after every 2 filaments pass through a filament combining wheel, wherein the width of the formed 2 beams is 2-5mm; and then passing through the folded filament path, forming a interlacing point by the single filaments of the flat pavement to form 1 bundle of 48K filaments.
Furthermore, the compressed air pressure of the tows in the second-stage interlacer is controlled to be 0.02-0.6MPa.
Furthermore, the tension of the tows in the second-stage filament combining device in the interlacer needs to be controlled within 3-20N.
Furthermore, in the third stage of the yarn combining device, the yarn channel is folded, and the deviation angle of the yarn channel and the central line is 15-30 degrees.
Compared with the prior art, the invention has the following advantages:
1. the invention realizes the preparation of 48 threads by utilizing a 3-level thread combining device and adopting an interlacing structure with different forms.
2. The silk device can realize rapid silk combination.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of a high-K binding device according to the present invention.
In fig. 1: 1. a first wire combining wheel; 2. a second wire combining wheel; 3. a first wire spreading wheel; 4. a second wire expanding wheel; 5. a interlacing device; 6. a third wire expanding wheel; 7. a wire unfolding wheel IV; 8. a fifth wire expanding wheel; 9. and a wire expanding wheel six.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications to the invention described herein may occur to those skilled in the art upon reading the teachings herein, and that such equivalents are within the scope of the invention as defined in the appended claims.
The utility model provides a dry jet wet spinning 48K carbon fiber precursor closes silk preparation facilities fast, includes that tertiary silk device of closing is respectively: the first stage of yarn combining device is used for fiber equal-width paving and interlacing, the second stage of yarn combining device is used for compressed air interlacing, and the third stage of yarn combining device is used for folded yarn channel interlacing. Further, the second-stage filament combining device is as follows: the air interlacing device is a ring device with various shapes, the aperture is 4-25mm, and the number of holes is as follows: 2-15. The specific shape is round, rectangular or triangular.
As shown in fig. 1, the first-stage filament combining device comprises a filament combining wheel I1, a filament combining wheel II 2, a filament spreading wheel I3 and a filament spreading wheel II 4; the second-stage filament combining device is an interlacing device 5; the third stage of yarn combining device comprises a third yarn spreading wheel 6, a fourth yarn spreading wheel 7, a fifth yarn spreading wheel 8 and a sixth yarn spreading wheel 9.
A rapid preparation method of a base dry jet wet spinning 48K carbon fiber precursor rapid filament-combining preparation device comprises the specific steps of forming 1 bundle of 48K filaments through a first-stage filament-combining device;
passing through a second-stage filament-combining device, the continuous interlacing length is 10-40cm, and the filament bundle needs to pass through the center of an interlacer;
and (4) passing through a third stage of yarn combining device, forming interlacing again in the folded yarn channel by the 48K yarns subjected to air interlacing.
The working process of the first-stage wire combining device is as follows: making 4 12 filaments, and forming the same widening width after every 2 filaments pass through a filament combining wheel, wherein the width of the formed 2 beams is 2-5mm; and then passing through the folded filament path, the single filaments of the plain surface form interlacing points to form 1 bundle of 48K filaments. The compressed air pressure of the tows in the second-stage interlacer is controlled to be 0.02-0.6MPa. The tension of the tows in the second stage of the filament combining device in the interlacer needs to be controlled to be 3-20N. In the third stage of the silk combining device, the silk channel is folded, and the deviation angle of the silk channel and the central line is 15-30 degrees.
Example 1
The rapid silk combination under the speed of 450m/min of dry-jet wet spinning is realized by three-stage series silk combination devices, and the silk combination time is 0.2s. The three-stage filament combining device comprises: three devices of fiber equal-width flat laying interlacing, compressed air interlacing and broken filament path interlacing. The first-stage silk combining device is used for enabling 4 12 silks to pass through a silk combining wheel every 2 silks to form the same widening width, and the width of each formed 2 bundles is 5mm; and then passing through the folded filament path, forming a interlacing point by the single filaments of the flat pavement to form 1 bundle of 48K filaments. The second-stage wire combining device comprises: an air interlacer device. Can be annular devices with various shapes (circular, rectangular or triangular), the compressed air pressure is controlled to be 0.6MPa, the hole diameter is 4mm, and the hole number is as follows: 2, the continuous interlacing length is 15cm, the tension of the tows in the interlacer needs to be controlled to be 3-20N, and the tows need to pass through the center of the interlacer. The third stage of yarn combining device is as follows: the 48K yarns after air interlacing pass through the folding yarn path, the deviation angle of the yarn path and the central line is 30 degrees, and interlacing is formed again in the process of folding the yarn path, so that the preparation of the 48K yarns is realized.
Example 2
The three-stage tandem silk combining device is used for realizing the rapid silk combining at the speed of 405m/min of dry-jet wet spinning, and the silk combining time is 0.35s. The three-stage filament combining device comprises: three devices of fiber equal-width flat laying interlacing, compressed air interlacing and broken filament path interlacing. The first-stage filament combining device is used for enabling 4 12 filaments to pass through a filament combining wheel every 2 filaments to form the same widening width, and the width of each formed 2 bundles is 3mm; and then passing through the folded filament path, forming a interlacing point by the single filaments of the flat pavement to form 1 bundle of 48K filaments. The second-stage wire combining device comprises: an air interlacer device. Can be annular devices with various shapes (round, rectangular or triangular), the compressed air pressure is controlled to be 0.05MPa, the hole diameter is 21mm, and the number of holes is as follows: 9, the continuous interlacing length is 28cm, the tension of the tows in the interlacing device needs to be controlled at 15N, and the tows need to pass through the center of the interlacing device. The third stage of yarn combining device is as follows: the 48K yarns after air interlacing pass through the folding yarn path, the deviation angle of the yarn path and the central line is 25 degrees, and interlacing is formed again in the process of folding the yarn path, so that the preparation of the 48K yarns is realized.
The present invention has been described in detail with reference to the foregoing specific embodiments, but it should be understood that the invention is not limited thereto, and various changes, substitutions and alterations can be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a dry jet wet spinning 48K carbon fiber precursor closes silk preparation facilities fast which characterized in that, it is respectively including tertiary device of closing the silk: the first stage of the yarn combining device is used for fiber equal-width spreading and interlacing, the second stage of the yarn combining device is used for compressed air interlacing, and the third stage of the yarn combining device is used for folding yarn channel interlacing.
2. The dry-jet wet-spun 48K carbon fiber precursor rapid filament combination preparation device according to claim 1, wherein the second-stage filament combination device is: the air interlacing device is a ring device with various shapes, the aperture is 4-25mm, and the number of holes is as follows: 2-15.
3. The dry-jet wet-spun 48K carbon fiber precursor rapid filament combination preparation device as claimed in claim 2, wherein the specific shape is circular, rectangular or triangular.
4. The quick preparation method of the dry-jet wet-spun 48K carbon fiber precursor filament quick-combination preparation device based on the claim 1 is characterized by comprising the following specific steps of:
forming 1 bundle of 48K wires by a first-stage wire combining device;
passing through a second-stage filament-combining device, the continuous interlacing length is 10-40cm, and the filament bundle needs to pass through the center of an interlacer;
and through a third stage of yarn combination device, 48K yarns subjected to air interlacing form interlacing again in the folded yarn channel.
5. The rapid preparation method according to claim 4, wherein the first stage filament combining device is: making 4 12 filaments, and forming the same widening width after every 2 filaments pass through a filament combining wheel, wherein the width of the formed 2 beams is 2-5mm; and then passing through the folded filament path, forming a interlacing point by the single filaments of the flat pavement to form 1 bundle of 48K filaments.
6. The rapid preparation method according to claim 4, characterized in that: the compressed air pressure of the tows in the second-stage interlacer is controlled to be 0.02-0.6MPa.
7. The rapid preparation method according to claim 4, characterized in that: the tension of the tows in the second-stage filament combining device in the interlacing device needs to be controlled to be 3-20N.
8. The rapid preparation method according to claim 4, characterized in that: in the third stage of the silk combining device, the silk channel is folded, and the deviation angle of the silk channel and the central line is 15-30 degrees.
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- 2022-07-27 CN CN202210893032.3A patent/CN115161779B/en active Active
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| CN1918330A (en) * | 2004-02-13 | 2007-02-21 | 三菱丽阳株式会社 | Carbon fiber precursor fiber bundle, production method and production device therefor, and carbon fiber and production method therefor |
| JP2009132574A (en) * | 2007-11-30 | 2009-06-18 | Ching-Ling Pan | Carbon nanocrystal material and method for manufacturing hot plate using the same |
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