CN1504595A - Method and device for drawing , curling and distorting synthetic fibre - Google Patents
Method and device for drawing , curling and distorting synthetic fibre Download PDFInfo
- Publication number
- CN1504595A CN1504595A CNA200310102951A CN200310102951A CN1504595A CN 1504595 A CN1504595 A CN 1504595A CN A200310102951 A CNA200310102951 A CN A200310102951A CN 200310102951 A CN200310102951 A CN 200310102951A CN 1504595 A CN1504595 A CN 1504595A
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- fiber
- heating
- slit
- heater
- typing
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
- D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
In a textile conditioning process a synthetic fiber is stretched within a heated zone and texturized prior to shrinking and relaxation within a further heated zone. During the relaxation phase the thread passes esp. without tension through a horizontal set-heater passage. The set-heater thread passage is a height-limited slit constriction. Also claimed is a commensurate texturizing assembly in which the thread passes between two parallel heated plates together forming a vertical slit. Temperature is varied by altering the gap width between the two plates. There is no contact between the thread and the plates. The thread follows a zigzag path between the plates. The ratio of the slit height (H) to width (B) is H/B ( 5. The width is less than 4.5 mm.
Description
Technical field
The present invention relates to a kind ofly synthetic fiber be carried out the method for crimping by stretching distortion and a kind of as claim 6 device that is used to carry out this method as described in the preamble as claim 1 as described in the preamble being used for.
Background technology
By known these class methods of DE 199 33 990 A1 and this class device.
Known, for the thermoplastic fibres that makes melt spinning obtains one for the structure that changes of weaving purpose, fiber is curled in deforming process.The crimping by stretching deformation technique is particularly suitable in this respect.Be stretched simultaneously in drawing zone inside with Texturized at this fiber.Known devices has a heater, a cooling device and a Texturized unit in drawing zone inside for this reason.To yarn bobbin be drawn out and be transported to drawing zone by one first outlet roller from one at this fiber.Determine by the outlet roller that is placed on Texturized unit in this stretch ratio.Two outlet rollers drive with a speed difference.In heater, heat, cool off at the drawing zone internal fiber and carry by the Texturized unit that preferably constitutes by false twist device.Obtain desired curling by false twisting generation fiber, curl and determine by the so-called rate of crispaturaing.In order to remove the stress that is added to during Texturized on the fiber, then with fibre transportation to a shrinking zone.A typing-heater (Set-Heizer) to be set in inside, shrinking zone, in order eliminating stress fiber to be heated to above 100 ℃ by this heater.The effect that here eliminates stress depends primarily on the technological parameter of shrinking zone.Conclusive parameter especially be placed on the outlet roller of typing-heater speed, typing-heater temperature with and length.Especially make every effort to make rearmounted outlet roller to have certain hysteresis, so that reduce the fibre stress in typing-heater.Hysteresis means that the outlet roller that is prepended to typing-heater drives with the outlet roller faster speed than postposition.But speed difference is in certain certain critical value, so that can be reliably at typing-heater delivered inside fiber.Therefore it is lax not expect to occur fiber for known devices, because have influence on unsettled fibre transportation thus and to the uneven heating of fiber, this may cause fibrous fracture.
Summary of the invention
The objective of the invention is, improve above-mentioned method and above-mentioned device like this, make by certain fibre transportation and correspondingly constitute typing-heater and can improve and strengthen the stress processing.
This purpose realizes by a method and the device with claim 6 feature with claim 1 feature.
Advantage of the present invention is that comparing fiber with known method and apparatus can be with obviously bigger hysteresis in the shrinking zone delivered inside.Because the fiber that speed difference produces is lax according to causing a sag on the fiber according to of the present invention being arranged in, this sag can be reliably and the fiber channel by typing-heater unhinderedly.Fiber channel is made of a narrow heating slit for this reason, and its slit height adapts to possible fiber sag.Internal fiber passes through Convective Heating equably in the heating slit.Heating at this fiber does not depend on that whether fiber does not have sag or have sag ground is carried.Obtain different stress states for inner in the shrinking zone when eliminating fibre stress, the present invention is being particularly suitable to this.Not only be arranged on the horizontal level but also be arranged on the obliquity at this heater.
Another advantage of the present invention is, because big adjustable hysteresis can realize the comparable effect that eliminates stress by reducing heter temperature.Therefore obtain a special fiber treatment of showing consideration in the shrinking zone.
At this, be formed in to described heating slit or flute profile in the heat block (Heizblock) of an one or be formed between two heating plates that constitute heat blocks.Especially can irrespectively on fiber, realize uniform heating with hysteretic state for the guiding between two heating plates.
Described heat block preferably is arranged on a calandria the inside replaceably, and this calandria has one or more heaters (Heizmittel) and is used for heat block is heated.Therefore can be with the heating slit of simple method cleaning heat block inside.Not only can adopt resistive element but also can adopt thermal liquid or saturated vapor as heater.
When calandria was made of two heating plates, heating plate preferably was fixed on calandria inside at a certain distance by strainer, to constitute the heating slit.
The slit height H and the ratio between the gap width B in the heating slit of typing-heater be best＞and 5, that is, the slit height H is than at least 5 times greatly of gap width B.At this, realize the violent heating of fiber on the one hand by convection current, realize stressless state by the maximum sag on the fiber on the other hand.
The gap width B in heating slit is preferably in＜scope of 4.5mm in.
For with the heating of simple mode and method affect fiber, for example when fibre number and fibrous material change, be designed to transformable according to a favourable expansion structure of the present invention will finalize the design-heat in the heater gap width in slit.
In addition in order further to make fibre guide and heating optimization in heating inside, slit, a plurality of director elements of combination in the heating slit contact so that for example avoid producing between lax fiber and the cell wall that heats the slit.At this, the fibre guide of (zick-zack) has been proved to be favourable especially in a zigzag in typing-heater inside.
Although penetrate into typing-heater the inside automatically for narrow heating slit also can make fiber, according to a preferred development structure of the present invention have one with the yarn-guiding duct that is connected of heating slit, it or direct forming are on the heat block or be formed between heat block and the calandria.Fiber is pneumatically carried by yarn-guiding duct with simple mode and method.
Description of drawings
Below by describing in detail according to method of the present invention by means of accompanying drawing according to device embodiment of the present invention.In the accompanying drawing:
Fig. 1 letter illustrate one be used for synthetic fiber crimping by stretching distortion according to device embodiment of the present invention,
Fig. 2 letter illustrates among Fig. 1 the cross section according to the typing-heater in apparatus of the present invention,
Fig. 3 letter illustrates the cross section of second embodiment of typing-heater,
Fig. 4 letter illustrates the side view of the heat block of opening of the typing-heater among Fig. 3,
Fig. 5 letter illustrates the viewgraph of cross-section of another embodiment of typing-heater.
The specific embodiment
Fig. 1 by means of a Working position letter illustrate be used to carry out according to the inventive method according to device embodiment of the present invention.Each unit of this Working position is generally used for fiber orientation and is arranged on the frame.Preferably be adjacent to fixing a plurality of Working positions on this frame, wherein unit is inner or only be attached to a fiber or also be attached to plurality of fibers at Working position.
In order to make tensile fiber and Texturized and then eliminate stress, adopt and arrange at the unit shown in Fig. 1.On a spool stand 3, fix one rotationally and give yarn bobbin 1, should comprise the fiber 2 of a smooth melt spinning to yarn bobbin 1.This spool stand 3 is attached troops to a unit in a top thread-carrier (Kopffadenfuehrer) 31.Between first outlet roller 5 and second outlet roller 6, constitute a drawing zone 4.This drawing zone 4 is also referred to as Texturized district usually, because the inner stretching of carrying out fiber simultaneously and Texturized in this district.A heater 7, a cooling device 8 and a Texturized unit 9 successively are set on the fibre transportation direction in these drawing zone 4 inside.Is being furnished with rotaring forward roller 32 respectively in order to fibre guide between heater 7 and the cooling device 8 and between cooling device 8 and Texturized unit 9.
Between second outlet roller 6 and the 3rd outlet roller 15, constitute a shrinking zone 10.10 inside are provided with a typing-heater 11 in the shrinking zone.Be arranged on the horizontal plane at this second outlet roller 6, typing-heater 11 and the 3rd outlet roller 15, this plane here is called shrinks the plane.Going into yarn thread-carrier 12 one of upstream end attaches troops to a unit and attaches troops to a unit in typing-heater at yarn thread-carrier 13 of output in typing-heater 11.
A coiler device 16 is attached troops to a unit in the 3rd outlet roller 15 on the fibre transportation direction, so that the fiber 2 that is out of shape and eliminates stress that will be curled is wound into a reel 19.Reel 19 is fixed on the spool stand 18 of a rotatably support for this reason.The driving of reel 19 of fiber 2 of being used to reel realizes by a cylinder 17.The not shown here reciprocating apparatus that is used to lay fiber and is equipped with.
For from give yarn bobbin 1, pulling out and be transported to drawing zone 4 by first outlet roller 5 at the embodiment fiber 2 shown in Fig. 1.Second outlet roller 6 and first outlet roller 5 drive by a speed difference, make fiber 2 in drawing zone 4 inner tensile.Be out of shape at the drawing zone 4 inner fiber crimps of realizing simultaneously.Under the situation that Texturized unit 9 is made of false twist device, on fiber 2, produce a false twisting, the false twisting on the fiber 2 turns back to heater 7 always.In heater 7, fiber is heated to best more than 200 ℃.Therefore play fiber 2 stretchings that make false twisting and the effect of finalizing the design.Heater 7 can for example be made of a high temperature heater (HTH) for this reason, and wherein the area of heating surface has a temperature, and it is apparently higher than the fusion temperature of fibrous material.Not only can have contiguously or contactlessly carry and can have contact in heater 7, to carry in combination at this fiber with contactless.But heater 7 also can be made of full contact heater, and wherein fiber contacts an area of heating surface, and this surface has the temperature of fiber substantially.
Before fiber 2 leaves drawing zone 4, in cooling device 8, cool off.Cooling device 8 can be made of a cooling row (Kuehlschiene) or a cooling body for this reason, and it cools off by cooling medium.
Then be delivered directly to shrinking zone 10 from drawing zone 4 by second outlet roller, 6 fibers 2 that pull out, be curled distortion and stretching.10 fibers, 2 essentially no stress ground are carried in the shrinking zone.The 3rd outlet roller 15 drives with a peripheral speed less than the second outlet roller peripheral speed on shrinking zone 10 ends for this reason.Therefore fiber 2 with a hysteresis in the shrinking zone 10 delivered inside.The size of this hysteresis has influence on the processing that in the shrinking zone 10 inside are used to eliminate fiber 2 stress.Fiber 2 is carried by a fiber channel of typing-heater 11 for this reason.The fiber channel of typing-heater is made of the heating slit, makes fiber 2 that sag can be arranged or has sag ground by typing-heater.Also to describe the structure of typing-heater 11 below in detail.
In order to remove when the shrink process, fiber preferably is heated to 100-250 ℃ in typing-heater 11 inside at the fiber 2 inner stress that produce.Can carry like this with the hysteresis of maximum at this fiber 2, make to draw to form one owing to the lax sag that produces of fiber.Can irrespectively or with hysteresis irrespectively in typing-heater, pass through the Convective Heating fiber equably with the size of sag.
4 that transport out by the shrinking zone, eliminated stress and the fiber 2 of the distortion that is curled is received and be wound into reel 19 by coiler device 16.Known also can being directly used in as so-called typing false twisting modification silk (Setgarne) of the Texturized fiber that processes like this continued weaving processing.
Shown in Fig. 1 according to device embodiment of the present invention its arrange and the structure of each unit on be exemplary.Outlet roller is painted as the clamping outlet roller.But they also can be replaced by the outlet roller such as the godet roller of single driving with simple mode and method.For the possibility that obtains as far as possible separately to adjust drawing zone 4 and shrinking zone 10 is provided with one the 4th outlet roller 33 for another embodiment between second outlet roller 6 and typing-heater 11.The 4th outlet roller 33 with dashed lines draw in Fig. 1.Therefore fibre stress is adjusted in shrinking zone 10 by the 4th outlet roller 33 and the 3rd outlet roller 15.A fluidic device preferably is set between outlet roller 6 and 33, and the fiber that curls in this device is by air jet texturing.The yarn tension that is used for drawing of fiber in drawing zone 4 can irrespectively be adjusted by first outlet roller 5 and second outlet roller 6 therewith.
Letter illustrates among Fig. 1 the cross-sectional view according to the typing-heater 11 of apparatus of the present invention in Fig. 2.This typing-heater 11 is made up of a microscler calandria 20, and this calandria is a heater 21 U-shaped structure and that comprise a plurality of resistive element forms.The removable heat block 25 of in calandria 20, packing into.This heat block 25 has a microscler heating slit 24 in the centre.A vertical limit in this heating slit 24 is heated that piece 25 limits and vertical limit of being positioned at the opposite is opened wide.The side of opening wide in heating slit 24 connects a yarn-guiding duct 23, and it constitutes the end face that opens wide of heat block 25.Calandria 20 and heat block 25 externally hide heat by an insulator 22.
In order to heat, essentially no contiguously by heating slit 24 conveying fibers 2.This heating slit 24 has a gap width B for this reason, and this width is positioned at＜the 4.5mm scope.Preferably adjust gap width B like this, make its twice that equals fiber cross section or three times.For example the fiber cross section gap width B for 0.5mm is preferably 1.5mm.In order to realize big as far as possible hysteresis adjusting range, the heating slit has a slit height, and it is bigger 5 times than gap width B.For example the gap width slit height for 3mm is 15mm.Also can add thermal fiber for very large hysteresis thus.
In order to guarantee that the fibre guide element is preferably disposed on the side of heat tunnel contacting of not occurring not expected between fiber 2 and heating slit 24 cell walls.At another embodiment of typing-heater shown in Fig. 3 and Fig. 4, it for example can be installed in device the inside shown in Figure 1 for this reason.The viewgraph of cross-section of typing-heater shown in Figure 3 and the expansion side view of heating plate shown in Figure 4.
Identical with the typing-heater shown in Fig. 1 and 2 basically according to Fig. 3 with 4 embodiment, therefore can serve as the basis and only be illustrated in difference on this position with foregoing content.Described heat block 25 constitutes by two heating plates 26.1 and 26.2.Heating plate 26.1 and 26.2 is fixed on calandria 20 the insides with small spacing each other, constitutes heating slit 24 thus between heating plate 26.1 and 26.2.In order to keep certain spacing for example can use one or more spacer blocks, they are arranged between the heating plate.On vertical limit in heating slit 24 yarn-guiding duct 23 is set on the end face of heating plate 26.1 and 26.2, it is connected with heating slit 24 and has one much larger than the width that heats slit gap width B.Heating plate 26.1 and 26.2 has a plurality of spaces apart from the director element 27 that is provided with, and they are protruding enters to heat slit 24.Described director element 27 is arranged on heating plate 26.1 and 26.2 with staggering mutually like this, make heating plate 26.1 and 26.2 and director element 27 between the fiber 2 carried keep a flexuose fiber motion track.The layout of director element 27 on heating plate 26.1 and 26.2 provided by the schematic diagram of Fig. 4.The fiber of fiber 2 shown in Figure 4 in addition in typing-heater 11 moves.Because fiber 2 is carried with hysteresis and produced certain relaxing, it is only because the gravity effect of fiber 2 arrives sag 14.Do not produce the variation that has influence on the fiber heating owing to sag 14 in heating inside, slit.
Be used for when laying fiber, making fiber as far as possible automatically by pneumatic conveying lay and heating the 24 li conveyings in slit on one's own initiative at the being positioned at yarn-guiding duct 23 of heating on 24 ends, slit shown in Fig. 2 and 3.
Letter illustrates another embodiment sectional view of typing-heater in Fig. 5.This typing-heater 11 has a calandria 20 that is made of double-walled, and it surrounds heat block 25.This calandria 20 comprises thermal liquid, and it is transported to calandria 20 as steam by input pipe 28.The thermal liquid of condensation can feed back to the heat-carrying loop that is connected by discharge pipe 29 from calandria 20.The heating plate 26.1 and 26.2 that heat block 25 in calandria 20 inside passes through two space distances constitutes.Extend between heating plate 26.1 and 26.2 in heating slit 24, and fiber 2 is contactlessly carried by the heating slit.For being fixed on, heating plate 26.1 and 26.2 between heating plate 26.1 and 26.2, fixes one or more strainers 30 in the calandria 20.Strainer 30 preferably is made of flexible member, and they can realize the replacing of heating plate 26.1 and 26.2 with simple method, so that can for example clean heating slit 24 and clean heating plate 26.1 and 26.2 thus.Strainer for example also can have magnetic element, so that fixing heating plate.The end of heating plate 26.1 and 26.2 have one be formed at heating plate 26.1 and 26.2 and calandria 20 between yarn-guiding duct, it extends on the whole length of typing-heater.
For at the embodiment shown in Fig. 5 with the adjustment that simple method realizes heating slit 24 gap width B like this, make in heating plate 26.1 or 26.2 one to replace with the width that changes by another heating plate.But at least one heating plate is made of a plurality of thin plates, and they can insert or take out selectively.Can realize that thus best heating gap width is used to handle fibre number and fibrous material arbitrarily arbitrarily.But also can between heating plate, make up a direct regulator, make at least one heating plate and keep moving, so that certain gap width can be adjusted in the heating slit as required with respect to the heating plate that is positioned at the opposite.
Be particularly suitable for according to method of the present invention and according to device of the present invention, can realize eliminating stress of fiber for the hysteresis of maximum.Certainly for since small fibre stress in the shrinking zone the inner fiber that enlarges with corresponding big fiber volume by heating equably, so that realizing removing stress on the entire cross section in fiber whole tow of fiber and thus according to method of the present invention with according to device of the present invention.Guarantee to handle equably the pars fibrosa that is positioned at outside or inside by Convective Heating.
List of numerals
1 gives yarn bobbin 18 spool stands
2 fibers, 19 reels
3 spool stands, 20 calandrias
4 drawing zones, 21 heaters
5 first outlet rollers, 22 insulators
6 second outlet rollers, 23 yarn-guiding ducts
7 heaters, 24 hot slits
8 cooling devices, 25 hot pieces
9 Texturized unit 26.1 heating plates
10 shrinking zones, 26.2 heating plates
11 typing-heaters, 27 director elements
12 go into yarn thread-carrier 28 input pipes
13 yarn thread-carriers, 29 discharge pipes
14 sags, 30 strainers
15 the 3rd outlet rollers, 31 top thread-carriers
16 coiler devices, 32 rotaring forward rollers
17 cylinders 33 the 4th outlet roller
Claims (15)
1. one kind is used for the method that synthetic fiber are out of shape in crimping by stretching, wherein fiber is heated in a drawing zone, stretching and Texturized, the fiber of distortion of wherein being curled is heated in a shrinking zone and eliminates stress, wherein fiber substantially contactlessly passes through the fiber channel conveying of a typing-heater in the shrinking zone, and will eliminate reel of fiber roll coiled of stress, it is characterized in that, in order in the shrinking zone, to heat, described fiber has sag ground on a section of typing-heater at least carries, and the fiber channel of wherein said typing-heater is made of the narrow heating slit that has with the suitable slit height of sag.
2. the method for claim 1 is characterized in that, described fiber is carried between two substantially parallel heating plates with sag, and these heating plates are formed between the heating slit.
3. method as claimed in claim 1 or 2 is characterized in that, the heating of described fiber is adjusted by the gap width in change heating slit or by changing heating-up temperature.
4. as each described method in the claim 1 to 3, it is characterized in that the guiding of described fiber is definite like this in the slit in heating by a plurality of director elements, make to contact with heating not produce between the wall of slit at fiber.
5. method as claimed in claim 4 is characterized in that, described fiber is carried by the heating slit in a zigzag.
6. device that is used for implementing as claim 1 to 5 method as described in each, this device has a reel stand (3) and gives yarn bobbin (1) in order to fix at least one, have a plurality of outlet rollers (5,6,15) in order to guiding and conveying fiber (2), in a drawing zone (4), has a heater (7), a cooling device (8) and a Texturized unit (9), in shrinking zone (10), have a typing-heater (11) and have a coiler device (14), it is characterized in that, described typing-heater (11) shrinks at one and has an outlet roller (6 that is prepended to typing-heater (11) on the plane, 33) and an outlet roller (15) that is placed on typing-heater (11), and described typing-heater (11) has a fiber channel that is made of heating slit (24) at least one segmentation, can have sag or not have sag ground to carry by this passage fiber.
7. device as claimed in claim 6 is characterized in that, is formed in the microscler heat block (25) to described heating slit (24) flute profile, and this heat block (25) heats by at least one heater (21) from the outside.
8. device as claimed in claim 6 is characterized in that, described heat block (25) is made of two microscler heating plates (26.1,26.2), and this heating plate is provided with and forms described heating slit (24) substantially in parallel to each other between himself.
9. as claim 7 or 8 described devices, it is characterized in that described heat block (25) is arranged on one replaceably to be held in the calandria (20) of heater (21).
10. device as claimed in claim 9 is characterized in that, described heating plate (26.1,26.2) is fixed in the calandria (20) by strainer (30).
11. as each described device in the above-mentioned claim 6 to 10, it is characterized in that described heating slit (24) has a slit height H and a gap width B, its ratio is H/B＞5.
12., it is characterized in that the gap width B in described heating slit (24) is designed to less than 4.5mm as each described device in the above-mentioned claim 6 to 11.
13., it is characterized in that the gap width B in described heating slit (24) is designed to transformable as each described device in the above-mentioned claim 6 to 12.
14. as each described device in the above-mentioned claim 6 to 13, it is characterized in that, a director element or a plurality of director element (27) are set in described heating slit (24) in order to guide fiber.
15. as each described device in the above-mentioned claim 6 to 14, it is characterized in that, described heat block (25) go up or be provided with between described heat block (25) and the calandria (20) one with heat the yarn-guiding duct (23) that slit (24) is connected, it is designed to wideer than heating slit (24).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10255810 | 2002-11-29 | ||
| DE10255810.8 | 2002-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1504595A true CN1504595A (en) | 2004-06-16 |
Family
ID=32318809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200310102951A Pending CN1504595A (en) | 2002-11-29 | 2003-10-30 | Method and device for drawing , curling and distorting synthetic fibre |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1504595A (en) |
| DE (1) | DE10354457A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427136A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Fiber hot-drawing setting device and drawing method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018007292A1 (en) * | 2016-07-05 | 2018-01-11 | Oerlikon Textile Gmbh & Co. Kg | Heating device |
| WO2018007294A1 (en) * | 2016-07-08 | 2018-01-11 | Oerlikon Textile Gmbh & Co. Kg | Heating device |
-
2003
- 2003-10-30 CN CNA200310102951A patent/CN1504595A/en active Pending
- 2003-11-21 DE DE10354457A patent/DE10354457A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427136A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Fiber hot-drawing setting device and drawing method thereof |
| CN114427136B (en) * | 2020-10-15 | 2023-05-19 | 中国石油化工股份有限公司 | Fiber hot stretching and shaping device and stretching method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10354457A1 (en) | 2004-06-17 |
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