CN114669229A - Short-cut regenerated carbon fiber highly-orienting device and using method thereof - Google Patents
Short-cut regenerated carbon fiber highly-orienting device and using method thereof Download PDFInfo
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- CN114669229A CN114669229A CN202210315059.4A CN202210315059A CN114669229A CN 114669229 A CN114669229 A CN 114669229A CN 202210315059 A CN202210315059 A CN 202210315059A CN 114669229 A CN114669229 A CN 114669229A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 87
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 87
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 54
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000725 suspension Substances 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000000151 deposition Methods 0.000 claims abstract description 5
- 239000006185 dispersion Substances 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 241000282376 Panthera tigris Species 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 6
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000001704 evaporation Methods 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000011208 reinforced composite material Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000010786 composite waste Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 buckle clamp Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/26—Vacuum evaporation by resistance or inductive heating of the source
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Fibers (AREA)
Abstract
The invention discloses a chopped regenerated carbon fiber high-orientation device and a using method thereof, wherein the chopped regenerated carbon fiber high-orientation device comprises a feeding unit, an orientation unit and a heating unit; the feeding unit mainly comprises a storage barrel and a motor, the storage barrel is used for storing the regenerated carbon fiber suspension, and the regenerated carbon fiber suspension in the storage barrel is conveyed to the orientation unit through the motor; the guide pipe in the orientation unit is connected with the material storage barrel of the feeding unit, and the suspension liquid passes through the orientation nozzle to complete the orientation of the regenerated carbon fiber; the heating unit is used for evaporating moisture in the regenerated carbon fiber suspension; preparing a regenerated carbon fiber suspension by an overhead stirrer and ultrasonic waves, putting the regenerated carbon fiber suspension into a storage barrel, heating an aluminum block to a set temperature, depositing a regenerated carbon fiber suspension orientation spray head on the surface of the aluminum block, and obtaining a regenerated carbon fiber orientation felt after water is completely evaporated. The device and the using method have the characteristics of environmental protection, simple structure, convenient operation and the like, and can obtain the highly oriented regenerated carbon fiber felt.
Description
Technical Field
The invention relates to the field of recycling and reusing of carbon fiber reinforced resin matrix composite waste, in particular to a short-cut regenerated carbon fiber high-orientation device and a using method thereof.
Background
The carbon fiber reinforced resin matrix composite material is widely applied to the fields of aerospace, transportation industry, oceans, sports equipment, medical equipment, new energy and the like due to the excellent properties of high strength, high elastic modulus, light weight, corrosion resistance, fatigue resistance and the like. With the expansion of the application field, more and more carbon fiber reinforced resin matrix composite wastes are generated, and the regenerated carbon fibers obtained by treating the wastes have excellent performance and are used for preparing the regenerated carbon fiber reinforced composite.
Most of the regenerated carbon fibers are fluffy, dispersed and disordered and have high anisotropy, and the conventional method for preparing the regenerated carbon fiber reinforced composite material mainly adopts the steps of directly adding short fibers into matrix materials such as resin and the like and obtaining the regenerated carbon fiber reinforced composite material by using technological means such as injection molding and the like. However, the composite material obtained by the methods has relatively low content of the regenerated carbon fiber, relatively poor dispersion and orientation uniformity of the regenerated carbon fiber, and seriously influences the comprehensive performance of the regenerated carbon fiber reinforced composite material. In order to make up for the defects of the traditional method, the regenerated carbon fiber oriented felt is prepared by independently orienting the regenerated carbon fibers, and then the regenerated carbon fiber oriented felt is compounded with a matrix such as resin to obtain a regenerated carbon fiber reinforced composite material, which is more and more widely concerned by people.
At present, methods for preparing the regenerated carbon fiber oriented felt mainly comprise a magnetic field orientation method, an electric field orientation method, a pneumatic orientation method and a wet orientation method. The magnetic field orientation method requires the regenerated carbon fiber to have good magnetic performance, and the regenerated carbon fiber felt obtained by the method has low orientation degree and complex device. Similarly, the electric field orientation method requires the carbon fiber to have good electrical properties, and similar to the magnetic field orientation method, the regenerated carbon fiber obtained by the method has a low degree of orientation and a high cost. The regenerated carbon fiber obtained by the pneumatic orientation method has lower orientation degree. The regenerated carbon fiber oriented felt is obtained by the wet orientation method, and the orientation degree is relatively high. Chinese patent application publication No. CN107447370B discloses a device for realizing continuous orientation of chopped fibers by using a tapered spiral flow passage, which is complicated in structure.
Disclosure of Invention
The invention provides a short-cut regenerated carbon fiber highly-orienting device and a using method thereof, aiming at obtaining a regenerated carbon fiber felt with high orientation degree and good quality by a simple device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a short-cut regenerated carbon fiber highly-orienting device comprises a feeding unit, an orienting unit and a heating unit; the guide pipe of the feeding unit is inserted into an inner hole of the orientation nozzle of the orientation unit, and the aluminum block of the heating unit is fixedly connected with the moving platform of the orientation unit through a bolt.
Further, the orientation unit comprises a fixed seat, a second screw rod nut, a Z-axis movement slide rail, a coupler, a second motor, a moving platform, a control panel, a Y-axis movement slide rail, a butterfly tiger clamp, an X-axis movement slide rail, an orientation spray head and a support, the second screw rod is installed on the support through the fixed seat, the second screw rod nut is installed on the second screw rod, the second motor is connected with the second screw rod through the coupler, the control panel is connected with the second motor, the X-axis movement slide rail is fixedly connected with the second screw rod nut, the butterfly tiger clamp is arranged on the X-axis slide rail, the butterfly tiger clamp clamps the orientation spray head and can slide left and right along the X-axis movement slide rail, the support is provided with a Z-axis movement slide rail and a Y-axis movement slide rail, the X-axis movement slide rail can slide up and down along the Z-axis movement slide rail, the Y-axis motion sliding rail is provided with the moving platform, and the moving platform can slide back and forth along the Y-axis motion sliding rail.
Further, the diameter of the second screw rod is 6mm-12mm, the inner diameter of the guide pipe is 4mm-8mm, the height of the orientation spray head is 20mm-60mm, the reducing angle is 8-25 degrees, the width of a slit of the discharge port is 1mm-2mm, and the length of the discharge port is 8mm-20 mm.
Further, the heating unit comprises a temperature control box, an aluminum block, an electric heating tube and a thermocouple, the aluminum block is fixedly connected with the moving platform of the orientation unit through bolts, the electric heating tube is arranged in the aluminum block, the temperature sensing end of the thermocouple is arranged in the aluminum block, and the temperature control box is respectively electrically connected with the electric heating tube and the thermocouple.
Further, the length of the aluminum block is 100mm-300mm, the width is 100mm-300mm, the height is 10mm-20mm, and the heating temperature is 0-400 ℃.
Further, pipe, a word connecting plate, aluminium bar nut, clamp plate, piston rod, storage section of thick bamboo, buckle clamp, aluminium bar fixing base, lead screw supporting seat, first lead screw nut, support, lead screw fixing base, shaft coupling, motor mount pad, reduction gear, first motor that the pay-off unit included. The character connecting plate is fixedly connected with the support through a bolt, the aluminum rod passes through the aluminum rod fixing seat and is installed on the character connecting plate and the support, the first lead screw passes through the lead screw supporting seat and the lead screw fixing seat and is installed on the character connecting plate and the support, the pressing plate passes through the aluminum rod nut and the first lead screw nut and is installed in correspondence on the aluminum rod and the first lead screw, the pressing plate and the piston rod are fixedly connected, the piston rod is arranged in the storage cylinder, the storage cylinder passes through the bayonet clamp and is installed on the support, the first motor passes through the motor installation seat and is installed on the support, the speed reducer is directly connected with the first motor, and the speed reducer is connected with the first lead screw through the coupling.
Further, the diameter of the first screw rod is 6mm-12mm, the lead is 1mm-4mm, the length of the first screw rod is 300mm-500mm, the diameter of the aluminum rod is 6mm-12mm, the length of the material storage cylinder (24) is 150mm-200mm, the inner diameter of the material storage cylinder is 30mm-40mm, and the rotating speed of the first motor is 10r/min-30 r/min.
A use method of a short-cut regenerated carbon fiber highly-orienting device comprises the following steps:
step a: preparing a dispersion liquid: adding deionized water and hydroxyethyl cellulose into a beaker, stirring by an overhead stirrer, and then putting an amplitude transformer of an ultrasonic generator into the solution for vibration;
step b: preparing a suspension: adding the regenerated carbon fibers into the dispersion, stirring by the overhead stirrer, and then putting an amplitude transformer of an ultrasonic generator into the solution for vibration;
step c: adding the prepared regenerated carbon fiber suspension into the storage cylinder, starting the temperature control box, and heating the aluminum block;
step d: starting the first motor to enable the piston rod fixedly connected with the pressing plate to descend, and enabling the regenerated carbon fiber suspension in the storage cylinder to flow to the orientation unit through the guide pipe under pressure;
step e: and controlling the orientation spray head to move according to a set slicing path through the control panel, and depositing the regenerated carbon fiber suspension liquid to the surface of the aluminum block through the orientation spray head to obtain the regenerated carbon fiber highly-oriented felt.
Further, the mass-volume ratio of the hydroxyethyl cellulose to the deionized water is 8g/L-16g/L, the rotating speed of a stirring paddle of the overhead stirrer is 300r/min-500r/min, the time is 10min-30min, the ultrasonic frequency of the ultrasonic generator is 20khz-50khz, the power is 400W-800W, and the time is 10min-30 min.
Further, the length of the regenerated carbon fiber is 0.2mm-10mm, the mass-volume ratio of the regenerated carbon fiber to the dispersion liquid is 3g/L-6g/L, the rotating speed of a stirring paddle of the overhead stirrer is 500r/min-1000r/min, the time is 10min-30min, the ultrasonic frequency of the ultrasonic generator is 20khz-25khz, the power is 600W-1000W, and the time is 10min-30 min.
The invention has the beneficial effects that:
1. the invention provides a short-cut regenerated carbon fiber high orientation device and a using method thereof based on a wet orientation technology. The orientation spray head moves along the profile of each section of the part, the regenerated carbon fiber suspension liquid is subjected to the action of shearing force through the orientation spray head to complete orientation, and is extruded to the surface of the aluminum block through the orientation spray head, water in the regenerated carbon fiber suspension liquid is heated and evaporated, the orientation spray head rises by one layer height after one layer of molding is completed, the next layer of extrusion stacking is carried out, and the steps are repeated in this way, and the layer-by-layer deposition molding is carried out, so that the regenerated carbon fiber felt with high orientation degree is obtained.
2. According to the invention, the regenerated carbon fiber suspension is prepared by matching mechanical stirring and ultrasonic vibration for dispersion, so that the dispersion effect of the regenerated carbon fibers in the dispersion liquid is improved, and the orientation degree of the regenerated carbon fibers is improved.
3. The device and the using method thereof have the characteristics of environmental protection, simple structure, convenient operation and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the device of the present invention.
FIG. 2 is a schematic view of the structure of a feeding unit of the device of the present invention.
FIG. 3 is a schematic view of an orientation spray head of the apparatus of the present invention.
Fig. 4 is a flow chart of the operation of the apparatus and method of use of the invention.
Reference numbers in fig. 1: the device comprises a lead screw fixing seat 1, a lead screw fixing seat 2, a second lead screw nut 3, a 4-Z-axis motion sliding rail, a coupler 5, a second motor 6, a moving platform 7, a control panel 8, a 9-Y-axis motion sliding rail, a 10-guide pipe, a 11-butterfly tiger clamp, a 12-X-axis motion sliding rail, an orientation spray head 13, a temperature control box 14, an aluminum block 15, an electric heating pipe 16, a thermocouple 17 and a support 18.
The numbers in fig. 2: 19-straight connecting plate, 20-aluminum bar, 21-aluminum bar nut, 22-pressing plate, 23-piston rod, 24-material storage barrel, 25-snap clamp, 26-aluminum bar fixing seat, 27-lead screw supporting seat, 28-first lead screw, 29-first lead screw nut, 30-bracket, 31-lead screw fixing seat, 32-coupler, 33-motor mounting seat, 34-reducer and 35-first motor.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
The invention provides a chopped regenerated carbon fiber high orientation device and a using method thereof. As shown in figure 1, a guide pipe 10 of a feeding unit I is inserted into an inner hole of an orientation spray head 13 of an orientation unit II, and an aluminum block 15 of a heating unit III is fixedly connected with a moving platform 7 of the orientation unit II through bolts. The feeding unit mainly comprises a storage barrel and a motor, the storage barrel is used for storing the regenerated carbon fiber suspension liquid, and the regenerated carbon fiber suspension liquid in the storage barrel is conveyed to the orientation unit through the motor; the guide pipe in the orientation unit is connected with the material storage barrel of the feeding unit, and the suspension liquid passes through the orientation nozzle to complete the orientation of the regenerated carbon fiber; the heating unit is used for evaporating moisture in the regenerated carbon fiber suspension; preparing a regenerated carbon fiber suspension by an overhead stirrer and ultrasonic waves, putting the regenerated carbon fiber suspension into a storage barrel, heating an aluminum block to a set temperature, depositing a regenerated carbon fiber suspension orientation spray head on the surface of the aluminum block, and obtaining a regenerated carbon fiber orientation felt after water is completely evaporated.
As shown in fig. 2, a straight connecting plate 19 of a feeding unit i is fixedly connected with a support 30 through a bolt, an aluminum bar 20 is installed on the straight connecting plate 19 and the support 30 through an aluminum bar fixing seat 26, a first lead screw 28 is installed on the straight connecting plate 19 and the support 30 through a lead screw supporting seat 27 and a lead screw fixing seat 31, a pressing plate 22 is installed on the aluminum bar 20 and the first lead screw 28 through an aluminum bar nut 21 and a first lead screw nut 29 respectively, the pressing plate 22 is fixedly connected with a piston rod 23, the piston rod 23 is arranged in a storage cylinder 24, the storage cylinder 24 is installed on the support 30 through a bayonet clamp 25, a first motor 35 is installed on the support 30 through a motor installing seat 33, a speed reducer 34 is directly connected with the first motor 35, and the speed reducer 34 is connected with the first lead screw 28 through a coupling 32. The diameter of the first screw 28 is 12mm, the lead is 4mm, the length is 500mm, the diameter of the aluminum bar 20 is 12mm, and the rotating speed of the first motor 35 is 15 r/min.
The orientation unit II comprises a second lead screw 2, a second lead screw nut 3 is mounted on the second lead screw 2, a second motor 6 is connected with the second lead screw 2 through a coupler 5, a control panel 8 is connected with the second motor 6, an X-axis motion slide rail 12 is fixedly connected with the second lead screw nut 3, a butterfly tiger clamp 11 is arranged on the X-axis slide rail 12, the butterfly tiger clamp 11 clamps an orientation sprayer 13 and can slide left and right along the X-axis motion slide rail, a Z-axis motion slide rail 4 and a Y-axis motion slide rail 9 are arranged on the support 18, the X-axis motion slide rail 12 can slide up and down along the Z-axis motion slide rail 4, a moving platform 7 is arranged on the Y-axis motion slide rail 9, and the moving platform 7 can slide back and forth along the Y-axis motion slide rail 9. The diameter of the second screw rod 2 is 6mm, the lead is 2mm, and the inner diameter of the conduit 10 is 6 mm; as shown in FIG. 3, the orientation nozzle 13 may have a height of 40mm, a taper angle of 12 degrees, a discharge slit width of 1mm, and a discharge slit length of 12mm, wherein the taper angle is an angle between a bevel edge of the orientation nozzle and a central axis.
And starting a medium temperature control box 14 in the heating unit III, and heating the aluminum block 15 to 200 ℃. The aluminum block 5 has a length of 200mm, a width of 200mm and a thickness of 20 mm. The heating unit III comprises a temperature control box 14, an aluminum block 15, an electric heating tube 16 and a thermocouple 17, the aluminum block 15 is fixedly connected with the moving platform 7 of the orientation unit II through bolts, the electric heating tube 16 is arranged in the aluminum block 15, and the temperature sensing end of the thermocouple 17 is arranged in the aluminum block 15 so as to detect the temperature of the aluminum block; the temperature control box 14 is electrically connected to the electrothermal tube 16 and the thermocouple 17, respectively.
As shown in fig. 4, a method for using a chopped recycled carbon fiber highly-oriented device comprises the following steps:
step a: preparing a dispersion liquid: adding 500ml of deionized water and 5g of hydroxyethyl cellulose into a beaker, stirring by an overhead stirrer stirring paddle at the rotating speed of 400r/min for 10min, putting an amplitude transformer of an ultrasonic generator into the solution for vibration, setting the frequency to be 20khz, the power to be 500W and the dispersion time to be 5 min. The overhead stirrer is used for being matched with ultrasonic waves for dispersing, so that the hydroxyethyl cellulose is fully dissolved in the deionized water, and the required time is short.
Step b: preparing a suspension: adding 2 mm-long regenerated carbon fibers with the mass of 2g into the dispersion liquid, stirring by a stirring paddle of an overhead stirrer at the rotating speed of 700r/min for 10min, putting an amplitude transformer of an ultrasonic generator into the solution for vibration, setting the frequency to be 20khz, the power to be 500W and the dispersion time to be 5 min. The overhead stirrer is matched with ultrasonic waves for dispersion, so that the dispersion effect of the regenerated carbon fibers in the dispersion liquid is improved, and the required time is short.
Step c: and adding the prepared regenerated carbon fiber suspension into a storage barrel 24 of the feeding unit I, wherein the length of the storage barrel 24 is 170mm, and the inner diameter of the storage barrel is 36 mm.
Step d: the first motor 35 is started to cause the piston rod 23 fixedly connected with the pressing plate 22 to descend, and the regenerated carbon fiber suspension liquid in the storage cylinder 24 flows to the orientation unit II under pressure through the conduit 10.
Step e: the orientation spray head 13 is controlled by the control panel 8 to move according to a set slicing path, the regenerated carbon fiber suspension is deposited on the surface of the aluminum block 15 through the orientation spray head 13, and moisture in the suspension is heated and evaporated to obtain the regenerated carbon fiber highly-oriented felt.
It should be noted that the terms "upper", "lower", "left", "right", "front", "back", etc. used in the present invention are for clarity of description only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not limited by the technical contents of the essential changes.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (10)
1. A short high orienting device of regeneration carbon fiber that cuts, its characterized in that: comprises a feeding unit (I), an orientation unit (II) and a heating unit (III); and a guide pipe (10) of the feeding unit (I) is inserted into an inner hole of an orientation spray head (13) of the orientation unit (II), and an aluminum block (15) of the heating unit (III) is fixedly connected with a moving platform (7) of the orientation unit (II) through a bolt.
2. The chopped recycled carbon fiber highly oriented device of claim 1, wherein: the orientation unit (II) comprises a fixed seat (1), a second lead screw (2), a second lead screw nut (3), a Z-axis motion slide rail (4), a coupler (5), a second motor (6), a moving platform (7), a control panel (8), a Y-axis motion slide rail (9), a butterfly tiger clamp (11), an X-axis motion slide rail (12), an orientation sprayer (13) and a bracket (18), wherein the second lead screw (2) is installed on the bracket (18) through the fixed seat (1), the second lead screw nut (3) is installed on the second lead screw (2), the second motor (6) is connected with the second lead screw (2) through the coupler (5), the control panel (8) is connected with the second motor (6), the X-axis motion slide rail (12) is fixedly connected with the second lead screw nut (3), the X-axis slide rail (12) is provided with the butterfly clamp (11), the butterfly-shaped tiger clamp (11) clamps the orientation sprayer (13) and can slide left and right along the X-axis movement sliding rail, the support (18) is provided with a Z-axis movement sliding rail (4) and a Y-axis movement sliding rail (9), the X-axis movement sliding rail (12) can slide up and down along the Z-axis movement sliding rail (4), and the Y-axis movement sliding rail (9) is provided with the moving platform (7) and the moving platform (7) can slide back and forth along the Y-axis movement sliding rail (9).
3. The chopped recycled carbon fiber highly oriented device of claim 1, wherein: the diameter of the second screw rod (2) is 6-12 mm, the inner diameter of the guide pipe (10) is 4-8 mm, the height of the orientation spray head (13) is 20-60 mm, the reducing angle is 8-25 degrees, the width of a slit of the discharge port is 1-2 mm, and the length of the discharge port is 8-20 mm.
4. The chopped recycled carbon fiber highly oriented device of claim 1, wherein: heating unit (III) is including temperature control case (14), aluminium piece (15), electrothermal tube (16), thermocouple (17), aluminium piece (15) through the bolt with moving platform (7) fixed connection of orientation unit (II), place in electrothermal tube (16) inside aluminium piece (15), place in the temperature sensing end of thermocouple (17) inside aluminium piece (15), temperature control case (14) respectively with electrothermal tube (16) and thermocouple (17) electricity are even.
5. The chopped recycled carbon fiber highly oriented device of claim 1, wherein: the aluminum block (5) has the length of 100mm-300mm, the width of 100mm-300mm, the height of 10mm-20mm and the heating temperature of 0-400 ℃.
6. The chopped recycled carbon fiber highly oriented device of claim 1, wherein: the feeding unit (I) comprises a guide pipe (10), a straight connecting plate (19), an aluminum bar (20), an aluminum bar nut (21), a pressing plate (22), a piston rod (23), a storage cylinder (24), a buckle clamp (25), an aluminum bar fixing seat (26), a lead screw supporting seat (27), a first lead screw (28), a first lead screw nut (29), a support (30), a lead screw fixing seat (31), a coupler (32), a motor mounting seat (33), a speed reducer (34) and a first motor (35); the I-shaped connecting plate (19) is fixedly connected with the support (30) through bolts, the aluminum bar (20) is installed on the I-shaped connecting plate (19) and the support (30) through the aluminum bar fixing seat (26), the first lead screw (28) is installed on the I-shaped connecting plate (19) and the support (30) through the lead screw supporting seat (27) and the lead screw fixing seat (31), the pressing plate (22) is installed on the corresponding aluminum bar (20) and the first lead screw (28) through the aluminum bar nut (21) and the first lead screw nut (29), the pressing plate (22) is fixedly connected with the piston rod (23), the piston rod (23) is arranged in the storage barrel (24), the storage barrel (24) is installed on the support (30) through the bayonet clamp (25), and the first motor (35) is installed on the support (30) through the motor installation seat (33), the speed reducer (34) is directly connected with the first motor (35), and the speed reducer (34) is connected with the first screw rod (28) through the coupler (32).
7. The chopped recycled carbon fiber highly oriented device of claim 1, wherein: the diameter of the first screw rod (28) is 6mm-12mm, the lead is 1mm-4mm, the length is 300mm-500mm, the diameter of the aluminum rod (20) is 6mm-12mm, the length of the material storage barrel (24) is 150mm-200mm, the inner diameter is 30mm-40mm, and the rotating speed of the first motor (35) is 10r/min-30 r/min.
8. A use method of a chopped regenerated carbon fiber highly-oriented device is characterized by comprising the following steps: the method comprises the following steps:
step a: preparing a dispersion liquid: adding deionized water and hydroxyethyl cellulose into a beaker, stirring by an overhead stirrer, and then putting an amplitude transformer of an ultrasonic generator into the solution for vibration;
step b: preparing a suspension: adding the regenerated carbon fibers into the dispersion, stirring by the overhead stirrer, and then putting an amplitude transformer of an ultrasonic generator into the solution for vibration;
step c: adding the prepared regenerated carbon fiber suspension into the storage barrel (24), starting the temperature control box (14), and heating the aluminum block (15);
step d: starting the first motor (35) to enable the piston rod (23) fixedly connected with the pressing plate (22) to descend, and enabling the regenerated carbon fiber suspension in the storage barrel (24) to flow to an orientation unit (II) through the guide pipe (10) under pressure;
step e: and controlling the orientation spray head (13) to move according to a set slicing path through the control panel (8), and depositing the regenerated carbon fiber suspension on the surface of the aluminum block (15) through the orientation spray head (13) to obtain the regenerated carbon fiber highly-oriented felt.
9. The method of using a chopped recycled carbon fiber high orientation device according to claim 8, wherein: the mass volume ratio of the hydroxyethyl cellulose to the deionized water is 8g/L-16g/L, the rotating speed of a stirring paddle of the overhead stirrer is 300r/min-500r/min, the time is 10min-30min, the ultrasonic frequency of the ultrasonic generator is 20khz-50khz, the power is 400W-800W, and the time is 10min-30 min.
10. The method of using a chopped recycled carbon fiber high orientation device according to claim 8, wherein: the length of the regenerated carbon fiber is 0.2mm-10mm, the mass volume ratio of the regenerated carbon fiber to the dispersion liquid is 3g/L-6g/L, the rotating speed of a stirring paddle of the overhead stirrer is 500r/min-1000r/min, the time is 10min-30min, the ultrasonic frequency of the ultrasonic generator is 20khz-25khz, the power is 600W-1000W, and the time is 10min-30 min.
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