CN110093688A - Fiber preoxidation equipment - Google Patents
Fiber preoxidation equipment Download PDFInfo
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- CN110093688A CN110093688A CN201810105301.9A CN201810105301A CN110093688A CN 110093688 A CN110093688 A CN 110093688A CN 201810105301 A CN201810105301 A CN 201810105301A CN 110093688 A CN110093688 A CN 110093688A
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- oxidized fibre
- equipment
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- microwave
- fiber
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- 239000000835 fiber Substances 0.000 title claims abstract description 201
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 47
- 230000003647 oxidation Effects 0.000 claims abstract description 42
- 238000011282 treatment Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 27
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 abstract description 59
- 238000000034 method Methods 0.000 abstract description 55
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 32
- 239000004917 carbon fiber Substances 0.000 abstract description 32
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 32
- 238000010438 heat treatment Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 14
- 238000003763 carbonization Methods 0.000 description 12
- 230000000704 physical effect Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002243 precursor Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000036760 body temperature Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
- D01F11/16—Chemical after-treatment of artificial filaments or the like during manufacture of carbon by physicochemical methods
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
- D01D10/0454—Supporting filaments or the like during their treatment while in continuous movement using reels
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
- D01F9/322—Apparatus therefor for manufacturing filaments from pitch
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
- D01F9/328—Apparatus therefor for manufacturing filaments from polyaddition, polycondensation, or polymerisation products
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6491—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/78—Arrangements for continuous movement of material
- H05B6/788—Arrangements for continuous movement of material wherein an elongated material is moved by applying a mechanical tension to it
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/145—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/04—Heating using microwaves
- H05B2206/044—Microwave heating devices provided with two or more magnetrons or microwave sources of other kind
Abstract
Fiber preoxidation equipment of the invention specifically includes that a transmission unit and a microwave treatment unit；The microwave treatment unit is equipped with an at least magnetron at a furnace body of the transmission unit, and equipped with the gas supply unit connecting with the furnace body；It is focused using microwave and ultrahigh speed pre-oxidation processing procedure is imposed to the silvalin beam for continuing through the furnace body, the silvalin beam is processed into an oxidized fibre yarn beam, it not only can effectively reduce the oxidization time of an oxidized fibre, and the skin-core structure of the oxidized fibre is effectively reduced, it can even allow the oxidized fibre to reach without obvious core-skin degree, promote carbon fiber performance with relatively more positive, reliable means.
Description
Technical field
The present invention is related with the preoxidation technique of carbon fiber, mainly discloses a kind of fiber for helping to promote carbon fiber performance
Pre-oxidize equipment.
Background technique
Carbon fiber is a series of novel carbon materials of the phosphorus content that is transformed after heat treatments of organic fiber 90% or more
Material, with high specific strength, high ratio modulus, high conductivity and thermal conductivity, low thermal coefficient of expansion, low-density, high temperature resistant, resistance to tired
The a series of excellent properties such as labor, creep resistant, self-lubricating are a kind of ideal functional material and structural material, are widely used in
The fields such as space flight, civil aviation and transport, and have broad application prospects.
Polyacrylonitrile (polyacrylonitrile, PAN) as precursor carbon fiber preparation process include polymerization,
Spinning, pre-oxidation and carbonization, wherein preoxidation process is at the critical stage that structure changes in carbon fiber preparation process, and heat
In the most time-consuming stage during reason, the purpose is to the oxidation for making the linear macromolecule chain of polyacrylonitrile be converted into tool heat resistant structure is fine
Dimension, does not melt it in subsequent carbonization non-ignitable, and is able to maintain fibre morphology.
The structure transformation of precursor largely decides the structure and performance of carbon fiber in preoxidation process, in industry
Metaplasia mostly uses the pre-oxidation mode of gradient increased temperature in producing, and suitable temperature gradient is necessary in the process, starting
If temperature is too low, preoxidation process is not contributed, expends time increase cost, but initial temperature is too high, violent reaction
Heat release can make the PAN macromolecular chain of not temperature capacity fuse；If concentrating heat release that can destroy pre- in addition, final temperature is too high
The structure of oxygen silk, and cause excessively to pre-oxidize, it is unfavorable for preparing high-strength carbon fiber, but final temperature is too low, and may make
Precursor cannot be pre-oxidized adequately.
Furthermore when carrying out pre-oxidation in a manner of heating, with the progress of pre-oxidation, since heat is by precursor
Outer layer transmitted toward internal layer, therefore first can form the oxide layer (skin zone) of fine and close trapezium structure in the outer layer of precursor, this is instead
It hinders oxygen to spread to the core of precursor internal layer, the fiber 11 in an oxidized fibre 10 as shown in Figure 1 is caused to generate oxygen
Change unoxidized 112 notable difference of a core of 111 (skin zone) Buddhist monk of an oxide layer a skin-core structure, the oxide layer 111 with
There are a core-skin interfaces 113 between the core 112.The inspection of the skin-core structure using scanning electron microscope (SEM,
Scanning Electron Microscope) entity striograph is shot to observe the section of the oxidized fibre and calculate separately this
The cross-sectional area of the cross-sectional area of oxide layer and the cross-sectional area of the core and the oxidized fibre, the degree mirror of the skin-core structure
Determining method is that core ratio (%) is equal to the cross-sectional area of the core divided by the cross-sectional area of the oxide layer and the section face of the core
The sum of product, that is, core ratio (%) is equal to the cross-sectional area of the core divided by the cross-sectional area of the oxidized fibre.In addition, the oxygen
The physical property of chemical fibre dimension 10 and its made carbon fiber, such as tensile strength and modulus in tension, additionally depend on the oxidized fibre 10
Or the degree of oxidation and cyclisation degree of oxide layer 111；The oxidized fibre 10 or the degree of oxidation and cyclisation degree of oxide layer 111 are cured
The tensile strength and modulus in tension of carbon fiber made by the high then oxidized fibre 10 are also higher.The oxide layer 111 is in oxidation shape
State thus compact structure and cause made carbon fiber high tensile and high modulus in tension, the core 112 in oxidation not
Completely or the non-state of oxidation is so low tensile strength and low modulus in tension loosely organized and that lead to made carbon fiber, therefore
The oxide layer 111 and inconsistent caused skin-core structure of degree of oxidation of the core 112 are to cause carbon fiber tension strong
One of the main reason for degree reduces.Therefore, how to shorten preoxidation time during pre-oxidation, and how to improve pre-
Degree of oxidation reduces even be eliminated skin-core structure simultaneously, reduction and performance (tensile strength and drawing to carbon fiber production cost
Stretch modulus) raising have a very important significance.
Summary of the invention
In view of this, the present invention is to provide a kind of oxidization time that can effectively shorten oxidized fibre, and be effectively reduced
The skin-core structure of oxidized fibre, or even oxidized fibre is allowed to reach the fiber preoxidation equipment without obvious skin-core structure.
Fiber preoxidation equipment of the invention is suitable for silvalin beam pre-oxidation being an oxidized fibre yarn beam, the fibre
Dimension yarn Shu Youyi fiber or a plurality of fibers are assembled bunchy and are constituted, the oxidized fibre yarn Shu Youyi oxidized fibre or a plurality of
The oxidized fibre is assembled bunchy and is constituted, which has consisted essentially of: a transmission unit, is equipped with and provides a fibre
One feed unit of dimension yarn beam passes through for the silvalin beam and pre-oxidizes the silvalin beam for a furnace of the oxidized fibre yarn beam
Body, the winding unit for pulling silvalin Shu Lianxu transmission and collecting the oxidized fibre yarn beam；An and microwave treatment list
Member is set at the furnace body and generates a microwave with the inside to the furnace body.
According to above structure feature, which is equipped with the magnetron for generating the microwave at the furnace body.
According to above structure feature, which is further provided with the gas supply for an oxygen-containing gas to be passed through to the furnace body
Unit.
According to above structure feature, which further includes an air inlet and a gas outlet, the gas supply unit and the air inlet
Connection.
According to above structure feature, which further includes a heat-insulation unit.
According to above structure feature, at upper and lower position of the furnace interior relative to the silvalin beam transmitting path, respectively
Equipped with the heat-insulation unit.
According to above structure feature, which is equipped with the heat preservation that the opposite transmitting path by the silvalin beam is surrounded
Unit.
According to above structure feature, the winding unit, the magnetron and the gas supply unit and a control unit are electrically connected.
According to above structure feature, which is equipped with a plurality of magnetic for generating the microwave at the furnace body
Keyholed back plate.
According to above structure feature, a plurality of magnetrons are set to the unilateral side of the furnace body.
According to above structure feature, the two sides up and down that a plurality of magnetrons are set to the furnace body are in arranged opposite.
According to above structure feature, the two sides up and down that a plurality of magnetrons are set to the furnace body are dislocation arrangement.
According to above structure feature, a plurality of magnetrons are set to the two sides up and down and the left and right sides of the furnace body.
According to above structure feature, which is polyacrylonitrile (PAN) fiber, pitch fibers or other organic fibers
One of them.
Disclosed herein fiber preoxidation equipment, the main microwave using microwave treatment unit focuses to silvalin beam
Ultrahigh speed pre-oxidation treatment is imposed, silvalin beam is processed into oxidized fibre, not only can effectively reduce the oxygen of oxidized fibre
Change the time, and the oxide layer in oxidized fibre at least accounts for 50% or more the cross-sectional area of the oxidized fibre, and oxidation is effectively reduced
The skin-core structure of fiber；When oxide layer in oxidized fibre accounts for cross-sectional area at least 80% or more of the oxidized fibre, very
Extremely oxidized fibre can be allowed to reach without obvious skin-core structure.Therefore, the present invention promotes carbon fiber with relatively more positive, reliable means
Tie up performance.
Detailed description of the invention
Fig. 1 is the skin-core structure schematic diagram of known oxidized fibre.
Fig. 2 is fiber preoxidation device structure schematic diagram of the present invention.
Fig. 3 is furnace structure schematic diagram of the invention.
Fig. 4 is the basic flow chart with the oxidized fibre manufacturing method of fiber preoxidation equipment of the present invention.
Fig. 5 is respectively with 12kW/m2、16kW/m2、20kW/m2、24kW/m2Microwave focus processing in silvalin Shu Yuchuan
System acts on the oxidized fibre degree of oxidation curve graph of silvalin beam with heating processing.
Fig. 6 is with 24kW/m2Microwave focus processing in silvalin beam pass through 2 minutes, 4 minutes, 5 minutes, 10 minutes, 15
The cyclisation degree curve graph of the oxidized fibre of minute.
Fig. 7 is with 24kW/m2Microwave focus processing manufactured by silvalin beam 5 minutes made of oxidized fibre yarn beam work as
In oxidized fibre section entity striograph.
Fig. 8 is with 24kW/m2Microwave focus processing manufactured by silvalin beam 10 minutes made of oxidized fibre yarn beam
Oxidized fibre section entity striograph in the middle.
Fig. 9 is with 24kW/m2Microwave focus processing manufactured by silvalin beam 15 minutes made of oxidized fibre yarn beam
Oxidized fibre section entity striograph in the middle.
Figure 10 is oxidized fibre structural schematic diagram of the invention.
Figure number explanation:
Prior art
10 oxidized fibres
11 fibers
111 oxide layers
112 cores
113 core-skin interfaces
The present invention
20 silvalin beams
20A oxidized fibre yarn beam
21 oxidized fibres
211 oxide layers
212 cores
30 transmission units
31 feed units
32 winding units
33 furnace bodies
331 air inlets
332 gas outlets
34 heat-insulation units
40 microwave treatment units
41 magnetrons
42 gas supply units
50 control units.
Specific embodiment
The oxidization time of oxidized fibre can be effectively shortened present invention generally provides one kind, and oxidized fibre skin is effectively reduced
Cored structure, or even oxidized fibre is allowed to reach the fiber preoxidation equipment without obvious skin-core structure.Please refer to Fig. 2 and Fig. 3.Such as
Shown in Fig. 2, fiber preoxidation equipment of the invention is suitable for a silvalin beam 20 pre-oxidation being an oxidized fibre yarn beam 20A,
The silvalin beam 20 is assembled bunchy by a fiber (figure is not drawn) or a plurality of fibers and is constituted, oxidized fibre yarn beam 20A
Assemble bunchy by an oxidized fibre 21 or a plurality of oxidized fibres 21 to be constituted, which includes:
One transmission unit 30 is fed unit 31 equipped with provide a silvalin beam 20 one, passes through simultaneously for the silvalin beam 20
By the silvalin beam 20 pre-oxidize the furnace body 33 for oxidized fibre yarn beam 20A, pull the silvalin beam 20 continuously transmission and
One that oxidized fibre yarn beam 20A is collected winds unit 32, set on an air inlet 331 of the front end of the furnace body 33 and set on this
One gas outlet 332 of the rear end of furnace body 33；And
One microwave treatment unit 40 is equipped at least magnetron 41, Yi Jishe for generating a microwave at the furnace body 33
There is the gas supply unit 42 for an oxygen-containing gas to be passed through to the furnace body 33；The air inlet of the gas supply unit 42 and the furnace body 33
331 connections, the oxygen-containing gas are entered the furnace body 33 by the air inlet 331 and are discharged by the gas outlet 332 of the furnace body 33.
The winding unit 32, the magnetron 41 and the gas supply unit 42 can be electrically connected with a control unit 50.It can be by this
Whether control unit 50 controls the winding unit 32, the magnetron 41 and the gas supply unit 42 operate, and can be according to being processed
20 characteristic of silvalin beam or product specification set the power and the air feeder of the revolving speed of the winding unit 32, the magnetron 41
The operating parameters such as the flow of group 42.
Preferably, the microwave treatment unit 40 is equipped with a plurality of magnetrons 41 at the furnace body 33；A plurality of magnetic controls
The two sides up and down that pipe 41 is set to the furnace body 33 are in that opposite or Heterogeneous Permutation or a plurality of magnetrons 41 are set to the furnace body 33
Unilateral (upside or downside), as a plurality of magnetrons 41 of Fig. 2 are set to the two sides up and down of the furnace body 33 and in opposing upper and lower
Arrangement mode.Most preferably, a plurality of magnetrons 41 as shown in Figure 3 are in arrangement mode opposing upper and lower, so can be to passing through
The upper half and lower half of the silvalin beam 20 of the furnace body 33 are equably handled simultaneously with microwave irradiation, therefore are more shortened
The length of the furnace body 33 simultaneously thus shortens processing time and accelerates speed of production.
The present invention can further be equipped with a heat-insulation unit 34 in the transmission unit 30 inside the furnace body 33, as shown in Fig. 2,
Using the accumulation of heat effect of the heat-insulation unit 34, enables and be maintained at preset operating temperature inside the furnace body 33, and reach
Save the purpose of the energy.
For the present invention when implementing, which can be as shown in Fig. 2, relative to the silvalin beam inside the furnace body 33
At the upper and lower position of 20 transmitting paths, it is respectively equipped with the heat-insulation unit 34；Or it as shown in figure 3, is equipped with inside the furnace body 33
The heat-insulation unit 34 that the opposite transmitting path by the silvalin beam 20 is surrounded uses allowing 20 thermally equivalent of silvalin beam.?
On take off under the various possible patterns implemented, which, which can choose, incudes material for metal oxide, carbide, microwave height
One of material or combinations thereof.In Fig. 3, the feed unit 31 provide a plurality of silvalin beams 20 for being arranged in parallel with each other into
Enter the furnace body 33.
For the present invention when implementing, which can be as shown in Fig. 2, relative to 20 transmission path of silvalin beam
At the upper and lower position of diameter, it is respectively equipped with the magnetron 41；Alternatively, the microwave treatment unit 40 is equipped with the silvalin beam relatively
A plurality of magnetrons 41 that 20 transmitting path surrounds, use and the silvalin beam 20 are allowed uniformly to receive microwave focus processing.Also
I.e. a plurality of magnetrons 41 are set to the two sides up and down and the left and right sides of the furnace body 33.
When implementing, an oxidized fibre manufacturing method is carried out by the aforementioned fiber preoxidation equipment and is aoxidized with effectively shortening
The oxidization time of fiber, and oxidized fibre skin-core structure is effectively reduced, or even oxidized fibre is allowed to reach without obvious skin-core structure.It should
Oxidized fibre manufacturing method, it is shown referring to Figure 4 together, consist essentially of the following steps:
A., the transmission unit 30 and the microwave treatment unit 40 are provided.
B., the silvalin beam 20 is provided, and the silvalin beam 20 is placed in the transmission unit 30, and make the transmission unit
30, which are able to drive the silvalin beam 20, passes through the microwave treatment unit 40.Such as by the coiled silvalin beam 20, with can be by this
Transmission unit 30 drives the kenel for continuing through 40 operating area of microwave treatment unit to be installed at the transmission unit 30；In reality
It applies in example, the coiled silvalin beam 20 is placed in the feed unit 31, and the guidance of the tail end of the silvalin beam 20 is passed through
The furnace body 33 is simultaneously fixed on the winding unit 32；The silvalin beam 20, can be for polyacrylonitrile (PAN), pitch or other are organic
One of fiber.
C. start the microwave treatment unit 40, a microwave condition, the microwave condition packet are generated by the microwave treatment unit 40
Contain: a microwave frequency, the microwave frequency is between 300~300,000MHz；One microwave power, the microwave power between 1~
1000kW/m2；One operating temperature, the operating temperature is between 100~600 DEG C；And a gas atmosphere, the gas atmosphere are oxygen
One of gas, air, ozone or its mixing, the gas atmosphere are the oxygen-containing gas above-mentioned.In the present embodiment, at the same by
The oxygen-containing gas is passed through inside the furnace body 33 by the gas supply unit 42.
D. start the transmission unit 30, drive the silvalin beam 20 to continue under the microwave condition by the transmission unit 30
One processing time, the silvalin beam 20 is made to become oxidized fibre yarn beam 20A.Such as the silvalin is driven by the transmission unit 30
Beam 20, which persistently receives 1~40 minute speed of microwave focus processing, becomes an oxidation by 40 operating area of microwave treatment unit
Silvalin beam 20A, the processing time was between 1~40 minute.In the present embodiment, which is driven by the transmission unit 30
20 1~40 minute speed of microwave focus processing for persistently receiving the microwave treatment unit 40 become the oxidation by the furnace body 33
Silvalin beam 20A.In addition, the silvalin beam 20 can persistently receive the microwave treatment unit in the furnace body 33 in a manner of a lap wound
40 1~40 minute speed of microwave focus processing becomes oxidized fibre yarn beam 20A by the furnace body 33, for example, the fiber
Yarn beam 20 enters in the furnace body 33 and is sent to the rear end of the furnace body 33 in the front end of the furnace body 33, then by the furnace body 33 after
End is sent to the front end of the furnace body 33, followed by the rear end for being sent to the furnace body 33 from the front end of the furnace body 33 once again, according to
This mode repeats lap wound and is transferred out from the rear end of the furnace body 33 as oxidized fibre yarn beam 20A until on demand.Using
The lap wound mode can effectively shorten the required length of the furnace body 33.
Accordingly, the silvalin beam 20 can be driven to pass through according to preset speed under the running of the transmission unit 30
The operating area of the microwave treatment unit 40 passes through the process of 40 operating area of microwave treatment unit in the silvalin beam 20
In, ultrahigh speed pre-oxidation treatment is imposed to the silvalin beam 20 for continuing through the furnace body 33 using microwave focusing, by the fiber
Yarn beam 20 is processed into oxidized fibre yarn beam 20A.The silvalin beam 20 assembles bunchy institute by the fiber or a plurality of fibers
It constitutes, oxidized fibre yarn beam 20A assembles bunchy by the oxidized fibre 21 or a plurality of oxidized fibres 21 and constituted, with this
The fiber preoxidation of the silvalin beam 20 is the oxidized fibre 21 by invention fiber preoxidation equipment.
Please cooperate simultaneously referring to Figure 5, implements respectively with no microwave, microwave power 12kW/m2, microwave power 16kW/
m2, microwave power 20kW/m2, microwave power 24kW/m2Microwave focus processing in the silvalin beam 20, can obtain really with micro-
Wave power 24kW/m2Microwave focus processing in the silvalin beam 20 by after ten minutes, can allow oxidized fibre yarn beam 20A
The degree of oxidation of the oxidized fibre 21 in the middle reaches 100%, with the silvalin beam 20 correspondingly, the oxidized fibre yarn beam
20A assembles bunchy by the single oxidized fibre 21 or a plurality of oxidized fibres 21 and is constituted.Similarly, with microwave power
20kW/m2Microwave focus processing in the silvalin beam 20 after 15 minutes, can allow in oxidized fibre yarn beam 20A
The degree of oxidation of the oxidized fibre 21 reaches 100%；With microwave power 16kW/m2Microwave focus processing in the silvalin beam 20
After 25 minutes, the degree of oxidation for the oxidized fibre 21 that can be allowed in oxidized fibre yarn beam 20A reaches 100%.And
Even if only with microwave power 12kW/m2Microwave focus processing in the silvalin beam 20 by after forty minutes, even if this can not be allowed
The degree of oxidation of the oxidized fibre 21 in oxidized fibre yarn beam 20A reaches 100%, but can also make the oxygen of the oxidized fibre 21
Change degree reaches 89%.And if only heating the nothing passed through 40 minutes to the silvalin beam 20 with 270 DEG C with traditional heating processing procedure
Microwave processing procedure, then the degree of oxidation of the oxidized fibre 21 at most only reaches 70%.Therefore, with it is proposed by the invention impose it is micro-
Wave processing procedure is compared with traditional heating processing procedure, when the present invention can effectively improve the degree of oxidation of the oxidized fibre 21 and shorten processing procedure
Between, especially with microwave power 24kW/m2Microwave focus processing in the silvalin beam 20 carry out 10 minutes to reach 100% oxidation
Oxidized fibre 21 of degree, for the optimum process condition for carrying out oxidation stage.
Please cooperate simultaneously referring to shown in Fig. 6, with microwave power 24kW/m2Microwave focus processing in the silvalin beam 20,
The cyclisation degree for being formed by the oxidized fibre 21 is handled 2 minutes, 4 minutes, 5 minutes, 10 minutes and 15 minutes and examined respectively,
The oxidized fibre 21 passes through cyclisation degree after five minutes i.e. up to 100%, therefore cyclisation degree was up to required time 5 minutes of 100%
Less than time 10 minutes needed for degree of oxidation.Please cooperate simultaneously referring to shown in Fig. 7, Fig. 8 and Fig. 9, respectively with 24kW/m2It is micro-
Wave focus processing oxidized fibre yarn made of the silvalin beam 20 is carried out respectively manufactured by 5 minutes, 10 minutes and 15 minutes
The section of the oxidized fibre 21 in beam 20A is with scanning electron microscope (SEM, Scanning Electron
Microscope entity striograph) is shot, it is found that the oxide layer 211 accounts for 99.0% or more or the oxide layer of the oxidized fibre 21
The cross-sectional area that 211 cross-sectional area accounts for the oxidized fibre 21 is 99.0% or more, and has no apparent skin-core structure.
Please cooperate simultaneously referring to shown in table one and table two, table one is with the conventional process of electrothermal tube heating method and to use this
The microwave processing procedure of the oxidized fibre manufacturing method of invention fiber preoxidation equipment measures the silvalin beam 20, the oxidized fibre yarn
The tensile strength comparison sheet of carbon fiber yarn beam made of beam 20A and its subsequent carbonization；Table two is with the biography of electrothermal tube heating method
The microwave processing procedure of controlling journey and the oxidized fibre manufacturing method using fiber preoxidation equipment of the present invention, measures the silvalin beam
20, the modulus in tension comparison sheet of carbon fiber yarn beam made of oxidized fibre yarn beam 20A and its subsequent carbonization.It is aforementioned with electrothermal tube
The conventional process of heating method, process conditions are 270 DEG C of the furnace body temperature, and the processing time is 40 minutes, the physical property obtained
As a result it is classified as " comparative example one "；Aforementioned microwave processing procedure of the invention, process conditions are 220 DEG C of temperature of the furnace body, Microwave Frequency
Rate 2450MHz, microwave power 24kW/m2, the processing time is 10 minutes, and the physical property result obtained is classified as " embodiment one ".In
The silvalin beam 20 in comparative example one and embodiment one uses made by polyacrylonitrile.
Table one:
| Tensile strength (MPa) | Silvalin beam | Oxidized fibre yarn beam | Carbon fiber yarn beam |
| Comparative example one | 865 | 221 | 2824 |
| Embodiment one | 865 | 164 | 3675 |
Oxidized fibre yarn beam made by the microwave processing procedure of embodiment one is shown from table one, the carbon fiber after final carbonization
The tensile strength of dimension yarn beam is 1.3 times (3675 divided by 2824) of comparative example one, that is, tensile strength improves 30%.Microwave processing procedure
Because PAN oxidation can be allowed more complete, so the oxidized fibre yarn beam intensity of microwave processing procedure is slightly below traditional electrothermal tube processing procedure
The oxidized fibre yarn beam intensity, this can more allow another card of silvalin Shu Tigao degree of oxidation for microwave processing procedure of the invention
According to.
Table two:
| Modulus in tension (GPa) | Silvalin beam | Oxidized fibre yarn beam | Carbon fiber yarn beam |
| Comparative example one | 8.82 | 6.03 | 194.4 |
| Embodiment one | 8.82 | 6.92 | 227.1 |
Oxidized fibre yarn beam made by the microwave processing procedure of embodiment one is shown from table two, the carbon fiber after final carbonization
The modulus in tension of dimension yarn beam is 1.17 times (227.1 divided by 194.4) of comparative example one, that is, modulus in tension improves 17%.
So far, the oxidized fibre yarn beam that the present invention acts on the silvalin beam with traditional heating processing procedure is compared, with this
40 minutes needed for traditional heating processing procedure can shorten to 10 minutes by invention, therefore process efficiency improves 3 times, saves processing procedure
Time；It is compared with traditional heating processing procedure, the tensile strength of carbon fiber yarn beam is also improved 30% and modulus in tension raising by the present invention
17%；It is compared with traditional heating processing procedure, the present invention is also by the oxidation of the oxidized fibre 21 in oxidized fibre yarn beam 20A
The cross-sectional area that the cross-sectional area of layer 211 accounts for the oxidized fibre 21 is 99.0% or more, makes it without apparent skin-core structure, so that
The section of oxidized fibre yarn beam 20A can propose the tensile strength of carbon fiber yarn beam and modulus in tension more towards uniformity
It is high.Therefore use the present invention that can promote carbon fiber performance with relatively more positive, reliable means.
With the present invention when implementing, with 24kW/m2Microwave focus processing in those 5~10 minutes realities of silvalin beam
Pattern presentation is applied to be preferred.Be with present invention can be suitably applied to the silvalin beam 20 by after the furnace body 33 without the winding unit volume 32
It takes but connects carbonization processing procedure and produce carbon fiber yarn beam in a manner of continuous production, or suitable for the coiled silvalin beam 20 with this
The production method that feed unit 31 is rolled out and batched with the winding unit 32.
Please referring again to Fig. 5, as previously described with microwave power 12kW/m2Microwave focus processing in 220 DEG C to the fiber
Yarn beam 20 is by after forty minutes, the degree of oxidation of the oxidized fibre 21 reaches 89%；And it is right with 270 DEG C with traditional heating processing procedure
The silvalin beam 20 heating is by 40 minutes without microwave processing procedure, then the degree of oxidation of the oxidized fibre 21 reaches 70%.Therefore
For the present invention is compared to traditional heating processing procedure, higher degree of oxidation can be reached with lower temperature, therefore can avoid
Waste thermal energy.
Please cooperate simultaneously referring to shown in table three, table three is with the conventional process of electrothermal tube heating method and using of the invention
Microwave processing procedure measures the stretching of carbon fiber yarn beam made of the silvalin beam 20, oxidized fibre yarn beam 20A and its subsequent carbonization
Intensity comparison sheet.The aforementioned conventional process with electrothermal tube heating method, process conditions are 270 DEG C of the furnace body temperature, when processing
Between be 40 minutes, the physical property result obtained is classified as " comparative example one "；It is aforementioned to use microwave processing procedure of the invention, process conditions
It is 220 DEG C, microwave frequency 2450MHz, microwave power 12kW/m of the furnace body temperature2, the processing time is 40 minutes, works as microwave power
For 22kW/m2The physical property result obtained is classified as " embodiment two ", when microwave power is 20kW/m2The physical property result column obtained
For " embodiment three ", when microwave power is 16kW/m2The physical property result obtained is classified as " example IV ", when microwave power is
15kW/m2The physical property result obtained is classified as " embodiment five ".The silvalin beam 20 in comparative example one and all embodiments
Using made by polyacrylonitrile.In addition, by the oxidation in comparative example one and the oxidized fibre yarn beam 20A of embodiment out of the ordinary
The section of fiber 21 shoots entity image with scanning electron microscope (SEM, Scanning Electron Microscope)
Figure, the cross-sectional area of the oxide layer 211 is divided by the cross-sectional area of the oxidized fibre 21 after being computed, that is, the oxide layer 211 accounts for
The ratio of the oxidized fibre 21 is listed in table three.
Table three:
Show embodiment five with oxidized fibre yarn beam made by microwave processing procedure of the invention, final carbon from table three
The tensile strength of carbon fiber yarn beam after change is 1.13 times of comparative example one, that is, tensile strength improves 13%, the oxide layer 211
Cross-sectional area divided by the cross-sectional area of the oxidized fibre 21 be 51.2%, that is, the oxide layer 211 accounts for the oxidized fibre 21
51.2%；Carbon fiber of the example IV with oxidized fibre yarn beam made by microwave processing procedure of the invention, after final carbonization
The tensile strength of yarn beam is 1.17 times of comparative example one, that is, tensile strength improves 17%, and the cross-sectional area of the oxide layer 211 removes
With the cross-sectional area of the oxidized fibre 21 for 61.5%, that is, the oxide layer 211 accounts for the 61.5% of the oxidized fibre 21；Embodiment
Three with oxidized fibre yarn beam made by microwave processing procedure of the invention, the tensile strength of the carbon fiber yarn beam after final carbonization
It is 1.23 times of comparative example one, that is, tensile strength improves 23%, the cross-sectional area of the oxide layer 211 is divided by the oxidized fibre 21
Cross-sectional area be 82.7%, that is, the oxide layer 211 accounts for the 82.7% of the oxidized fibre 21；Embodiment two is with of the invention
The tensile strength of oxidized fibre yarn beam made by microwave processing procedure, the carbon fiber yarn beam after final carbonization is comparative example one
1.27 times, that is, tensile strength improves 27%, the cross-sectional area of the oxide layer 211 is divided by the cross-sectional area of the oxidized fibre 21
91.3%, that is, the oxide layer 211 accounts for the 91.3% of the oxidized fibre 21；Embodiment one is made with microwave processing procedure of the invention
At oxidized fibre yarn beam, the tensile strength of the carbon fiber yarn beam after final carbonization is 1.3 times of comparative example one, that is, is stretched
Intensity improves 30%, and the cross-sectional area of the oxide layer 211 is 99.0% divided by the cross-sectional area of the oxidized fibre 21, that is, the oxygen
Change layer 211 and accounts for the 99.0% of the oxidized fibre 21.
Therefore, using present invention oxidized fibre 21 produced, which includes the oxide layer 211 and a core
Portion 212, the oxide layer 211 are coated on the outside of the core 212, wherein the oxide layer 211 accounts for the oxidized fibre 21 at least
50% or more or the cross-sectional area of the oxide layer 211 to account for the cross-sectional area of the oxidized fibre 21 be at least 50% or more.Such as Figure 10
It is shown, the oxide layer 211 account at least 80% or more of the oxidized fibre 21 or the cross-sectional area of the oxide layer 211 account for the oxidation
The cross-sectional area of fiber 21 is at least 80% or more.
Certainly, the invention discloses the oxidized fibre 21, since the oxide layer 211 is formed in the microwave condition is lower, because
This oxide layer 211 is a microwave oxide layer, and oxide layer of the oxidized fibre 21 in oxidized fibre yarn beam 20A
211 account at least 50% or more of the oxidized fibre 21.
When implementing, which can be one of polyacrylonitrile (PAN), pitch or other organic fibers.
Certainly, which passes through 24kW/m2Microwave action in the silvalin beam 20 after 10 minutes microwave focus processings,
The oxide layer 211 of the oxidized fibre 21 in oxidized fibre yarn beam 20A accounts for 99.0% or oxygen of the oxidized fibre 21
It is 99.0% that the cross-sectional area for changing layer 211, which accounts for the cross-sectional area of the oxidized fibre 21,.
It is compared with traditional located by prior art, it is main to utilize the micro- of microwave treatment unit with fiber preoxidation equipment of the present invention
Wave focusing imposes ultrahigh speed pre-oxidation treatment to silvalin beam, and silvalin beam is processed into oxidized fibre yarn beam, not only can be with
The effectively oxidization time of reduction oxidized fibre yarn beam, and the oxidized fibre of oxidized fibre yarn Shu Dangzhong focuses oxidation processes through microwave
Oxide layer at least account for 50% or more the cross-sectional area of the oxidized fibre, oxidized fibre skin-core structure is effectively reduced, or even can allow
Oxidized fibre reaches without obvious skin-core structure, promotes carbon fiber performance with relatively more positive, reliable means.
Claims (14)
1. a kind of fiber preoxidation equipment, which is characterized in that be suitable for a silvalin beam (20) pre-oxidation being an oxidized fibre
Yarn beam (20A), the silvalin beam (20) are assembled bunchy by a fiber or a plurality of fibers and are constituted, the oxidized fibre yarn beam
(20A) assembles bunchy by an oxidized fibre (21) or a plurality of oxidized fibres (21) and is constituted, the fiber preoxidation equipment base
Include on this:
One transmission unit (30) is equipped with and provides feed unit (31) of a silvalin beam (20), leads to for the silvalin beam (20)
It crosses and the silvalin beam (20) is pre-oxidized into the furnace body (33) for the oxidized fibre yarn beam (20A), pulls the silvalin beam
(20) continuously transmission and winding unit (32) for collecting the oxidized fibre yarn beam (20A)；And
One microwave treatment unit (40), is set to the furnace body (33) and sentences and generate a microwave to the inside of the furnace body (33).
2. fiber preoxidation equipment as described in claim 1, which is characterized in that the microwave treatment unit (40) is in the furnace body
(33) magnetron (41) for generating the microwave is equipped at.
3. fiber preoxidation equipment as claimed in claim 2, which is characterized in that the microwave treatment unit (40) is equipped with for by one
Oxygen-containing gas is passed through gas supply unit (42) of the furnace body (33).
4. fiber preoxidation equipment as claimed in claim 3, which is characterized in that the furnace body (33) includes an air inlet (331)
And a gas outlet (332), the gas supply unit (42) are connect with the air inlet (331).
5. fiber preoxidation equipment as described in claim 1, which is characterized in that the furnace body (33) includes a heat-insulation unit
(34)。
6. fiber preoxidation equipment as described in claim 1, which is characterized in that the furnace body (33) is internal relative to the silvalin
At the upper and lower position of beam (20) transmitting path, it is respectively equipped with a heat-insulation unit (34).
7. fiber preoxidation equipment as described in claim 1, which is characterized in that be equipped with inside the furnace body (33) opposite by the fibre
Tie up the heat-insulation unit (34) that the transmitting path of yarn beam (20) is surrounded.
8. fiber preoxidation equipment as claimed in claim 3, which is characterized in that the winding unit (32), the magnetron (41)
And the gas supply unit (42) and a control unit (50) are electrically connected.
9. fiber preoxidation equipment as described in claim 1, which is characterized in that the microwave treatment unit (40) is in the furnace body
(33) a plurality of magnetrons (41) for generating the microwave are equipped at.
10. fiber preoxidation equipment as claimed in claim 9, which is characterized in that a plurality of magnetrons (41) are set to the furnace
The unilateral side of body (33).
11. fiber preoxidation equipment as claimed in claim 9, which is characterized in that a plurality of magnetrons (41) are set to the furnace
The two sides up and down of body (33) are in arranged opposite.
12. fiber preoxidation equipment as claimed in claim 9, which is characterized in that a plurality of magnetrons (41) are set to the furnace
The two sides up and down of body (33) are dislocation arrangement.
13. fiber preoxidation equipment as claimed in claim 9, which is characterized in that a plurality of magnetrons (41) are set to the furnace
The two sides up and down and the left and right sides of body (33).
14. fiber preoxidation equipment as described in claim 1, which is characterized in that the silvalin beam (20) is polyacrylonitrile
(PAN) one of fiber, pitch fibers or other organic fibers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107103129 | 2018-01-29 | ||
| TW107103129A TWI665349B (en) | 2018-01-29 | 2018-01-29 | Fiber pre-oxidation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110093688A true CN110093688A (en) | 2019-08-06 |
Family
ID=62025760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810105301.9A Withdrawn CN110093688A (en) | 2018-01-29 | 2018-02-02 | Fiber preoxidation equipment |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20190233979A1 (en) |
| EP (1) | EP3518621A1 (en) |
| JP (1) | JP6667567B2 (en) |
| CN (1) | CN110093688A (en) |
| TW (1) | TWI665349B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111647973A (en) * | 2020-07-07 | 2020-09-11 | 北京化工大学常州先进材料研究院 | Preparation method of large-tow carbon fiber |
| CN113604907A (en) * | 2021-08-13 | 2021-11-05 | 合肥日新高温技术有限公司 | High-efficient preliminary oxidation stove of carbon fiber |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6667567B2 (en) | 2020-03-18 |
| JP2019131939A (en) | 2019-08-08 |
| TW201932653A (en) | 2019-08-16 |
| TWI665349B (en) | 2019-07-11 |
| US20190233979A1 (en) | 2019-08-01 |
| EP3518621A1 (en) | 2019-07-31 |
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Application publication date: 20190806 |