CN110396651B - Preparation system of carbon fiber reinforced aluminum matrix composite, composite and part - Google Patents
Preparation system of carbon fiber reinforced aluminum matrix composite, composite and part Download PDFInfo
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- CN110396651B CN110396651B CN201910861096.3A CN201910861096A CN110396651B CN 110396651 B CN110396651 B CN 110396651B CN 201910861096 A CN201910861096 A CN 201910861096A CN 110396651 B CN110396651 B CN 110396651B
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 98
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 98
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000011159 matrix material Substances 0.000 title claims abstract description 16
- 238000003723 Smelting Methods 0.000 claims abstract description 93
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 88
- 238000010438 heat treatment Methods 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 30
- 230000003139 buffering effect Effects 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- WXRGABKACDFXMG-UHFFFAOYSA-N trimethylborane Chemical compound CB(C)C WXRGABKACDFXMG-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 25
- 239000010410 layer Substances 0.000 abstract description 21
- 239000002344 surface layer Substances 0.000 abstract description 10
- -1 aluminum-titanium-boron Chemical compound 0.000 abstract description 7
- 238000000151 deposition Methods 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract description 5
- 238000009715 pressure infiltration Methods 0.000 abstract description 4
- 238000005229 chemical vapour deposition Methods 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 238000003828 vacuum filtration Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 27
- 230000008018 melting Effects 0.000 description 21
- 238000002844 melting Methods 0.000 description 21
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000000626 liquid-phase infiltration Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/04—Pretreatment of the fibres or filaments by coating, e.g. with a protective or activated covering
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
- C22C47/12—Infiltration or casting under mechanical pressure
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
- C22C49/06—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
Abstract
The invention discloses a preparation system of a carbon fiber reinforced aluminum-based composite material, the composite material and parts. The system of the invention prepares the carbon fiber reinforced aluminum matrix composite material by a carbon fiber surface refiner deposition and smelting rotation integrated continuous molding process. Firstly, depositing a layer of aluminum-titanium-boron refiner on the surface layer of carbon fibers by chemical vapor deposition in a reaction forming chamber, then introducing an aluminum alloy melt which is smelted in a smelting chamber into the carbon fibers with aluminum-titanium-boron deposited on the surfaces by a vacuum and pressure infiltration combination method, and depositing a layer of aluminum-titanium-boron on the surface layer of the carbon fibers in the casting and solidification processes can inhibit the reaction of the carbon fibers and the aluminum alloy, refine the aluminum alloy structure and enhance the bonding strength of the carbon fibers and the aluminum alloy.
Description
Technical Field
The invention relates to the technical field of aluminum alloy composite materials, in particular to a preparation system and method of a carbon fiber reinforced aluminum matrix composite material, the composite material and parts.
Background
The carbon fiber is a fibrous carbon material with carbon content more than 90%, has very high specific strength and specific modulus, and has the characteristics of high temperature resistance, corrosion resistance, fatigue resistance and creep resistance. The carbon fiber reinforced metal composite material has wide application. The aluminum alloy has the characteristics of small density and excellent mechanical comprehensive performance, so the carbon fiber reinforced aluminum alloy composite material is an ideal structural material in the fields of automobiles, aerospace and aviation. The preparation method of the carbon fiber reinforced aluminum alloy composite material commonly used at present comprises the following steps: a melt infiltration method, an extrusion casting method, a diffusion bonding method, a powder metallurgy method, a vacuum pressure infiltration method, and the like. But the bonding strength of the aluminum alloy and the carbon fiber is poor in the existing method.
Disclosure of Invention
The invention aims to provide a preparation system, a material and parts of a carbon fiber reinforced aluminum matrix composite material, which can inhibit the reaction of carbon fibers and aluminum alloy, refine the aluminum alloy structure and enhance the bonding strength of the carbon fibers and the aluminum alloy.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a preparation system of carbon fiber reinforced aluminum matrix composite is characterized in that: the carbon fiber heating device is used for heating carbon fibers in the carbon fiber heating device and forming a refiner layer on the surfaces of the carbon fibers; the aluminum alloy smelting device is used for smelting an aluminum alloy block in the aluminum alloy smelting device into an aluminum alloy melt; after the aluminum alloy melt is formed, the positions of the carbon fiber heating device and the aluminum alloy smelting device are driven to exchange through the rotary driving device, so that the generated aluminum alloy melt enters the carbon fiber heating device, and the aluminum alloy melt and the carbon fibers are combined to form the carbon fiber reinforced aluminum matrix composite.
The further technical scheme is as follows: the carbon fiber heating device comprises a reaction crucible, a crucible clamp is arranged on the outer side of the reaction crucible, the reaction crucible is internally provided with carbon fibers, the periphery of the crucible clamp is provided with a first heating system, a reaction forming chamber is arranged at the outer side of the first heating system, a crucible clamp supporting rod is arranged at the upper side of the reaction forming chamber, the upper end of the crucible clamp supporting rod is provided with a crucible rotation driving motor, the lower end of the crucible clamp supporting rod extends into the reaction forming chamber and is fixedly connected with the reaction crucible, the lower end of the reaction forming chamber is fixedly connected with the rotary driving device, the outer side ends of the first MO source gas pipe, the second MO source gas pipe and the third MO source gas pipe are respectively connected with corresponding aluminum organic source, titanium organic source and trimethyl boron gas source, the inner side ends of the first MO source gas pipe, the second MO source gas pipe and the third MO source gas pipe pass through the reaction forming chamber and then enter the reaction crucible; and an air exhaust and aluminum alloy buffer device is arranged on the reaction forming chamber on the upper side.
The further technical scheme is as follows: the reaction crucible comprises a lower reaction crucible main body part and an upper reaction crucible main body part, the lower reaction crucible main body part is fixedly connected with the upper reaction crucible main body part, the lower end of the lower reaction crucible main body part is provided with a reaction crucible cylinder extending downwards, the lower end of the reaction crucible cylinder is provided with a reaction crucible opening, and the upper end of the upper reaction crucible main body part is provided with two reaction crucible through holes; openings are formed in the upper end and the lower end of the crucible clamp, the reaction crucible cylinder extends out of the opening in the lower end of the crucible clamp, and the inner side ends of the first MO source gas pipe, the second MO source gas pipe and the third MO source gas pipe extend into the reaction crucible cylinder; two connecting holes are arranged on the upper side wall of the reaction forming chamber corresponding to the through hole of the reaction crucible, and the air exhaust and aluminum alloy buffer device is fixed in the connecting holes and communicated with the connecting holes.
The further technical scheme is as follows: the air exhaust and aluminum alloy buffering device comprises a buffering crucible fixed in the connecting hole, a buffering crucible support fixed with the reaction forming chamber and communicated with the buffering crucible is arranged at the top of the buffering crucible, a copper mold communicated with the buffering crucible support is arranged at the upper end of the buffering crucible support, a multifunctional pipeline communicated with the copper mold is arranged at the upper end of the copper mold, and a one-way valve is arranged on the multifunctional pipeline.
The further technical scheme is as follows: the crucible clamp is characterized in that a crucible clamp insert ring is arranged on the upper side of the crucible clamp, an insertion groove is formed in the top wall of the reaction forming chamber corresponding to the crucible clamp insert ring, the crucible clamp insert ring is inserted into the insertion groove after a rubber ring is installed during installation, and a crucible clamp gland with the inner diameter smaller than the diameter of the crucible clamp main body is arranged at the lower end of the crucible clamp.
The further technical scheme is as follows: the aluminum alloy smelting device comprises a smelting crucible, a smelting chamber heater is arranged on the periphery of the smelting crucible, and an aluminum alloy block to be smelted is arranged in the smelting crucible; a smelting chamber is arranged on the outer side of the smelting chamber heater, the smelting crucible comprises an upper smelting crucible main body and a lower smelting crucible main body, the upper smelting crucible main body and the lower smelting crucible main body are welded together, an upward extending liquid discharge pipe is arranged on an upper end cover of the upper smelting crucible main body and is communicated with the smelting crucible, a liquid discharge port is arranged at the upper end of the liquid discharge pipe, the liquid discharge port of the liquid discharge pipe extends into a reaction crucible of the carbon fiber heating device, a pressure injection pipe is arranged on the lower smelting crucible main body, the upper end of the pressure injection pipe extends into the lower smelting crucible main body and is communicated with the smelting crucible, and the lower end of the pressure injection pipe extends to the outer side of the lower side wall of the smelting chamber; a heat insulation layer is arranged on the reaction forming chamber on the upper side of the upper main body of the smelting crucible, a pressing block is arranged at the outer side end of the heat insulation layer, and the heat insulation layer is fixed in an opening at the lower end of the reaction forming chamber through the pressing block; and auxiliary heaters are arranged on the upper side of the heat insulation layer and part of the liquid discharge pipe.
The further technical scheme is as follows: the rotary driving device comprises a furnace body rotary driving device and a furnace body rotating shaft, and the carbon fiber heating device and the aluminum alloy smelting device are fixed on the furnace body rotating shaft.
The further technical scheme is as follows: and an observation window is arranged on the lower side wall of the reaction forming chamber.
The invention also discloses a carbon fiber reinforced aluminum matrix composite, which is characterized in that: the preparation system is used for preparation.
The invention also discloses a carbon fiber reinforced aluminum-based part, which is characterized in that: the carbon fiber reinforced aluminum matrix composite is used for preparation.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the system of the invention prepares the carbon fiber reinforced aluminum matrix composite material by a carbon fiber surface refiner deposition and smelting rotation integrated continuous molding process. The system and the method firstly deposit a layer of Al-Ti-B refiner on the surface layer of carbon fiber in a reaction forming chamber by a chemical vapor deposition method, then immerse the aluminum alloy melt smelted in a smelting chamber into the carbon fiber with Al-Ti-B surface deposited by a vacuum and pressure infiltration combination method, and deposit a layer of Al-Ti-B on the surface layer of carbon fiber in the casting and solidification process to inhibit the reaction of the carbon fiber and the aluminum alloy, refine the aluminum alloy structure and enhance the bonding strength of the carbon fiber and the aluminum alloy.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a system according to an embodiment of the present invention during a casting process;
FIG. 3 is a schematic view of the structure of a reaction crucible in the system according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of the construction of a crucible holder in the system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a melting crucible configuration in the system according to an embodiment of the present invention;
wherein: 1: reaction forming chamber, 2: first heating system, 3: crucible clamp, 3-1: pressing a cover of the crucible clamp; 3-2: a crucible clamp through hole; 3-3: inserting a crucible clamp into a ring; 4: reaction crucible, 4-1: a reaction crucible main body portion; 4-2: a reaction crucible opening; 4-3: a reaction crucible through hole; 5: carbon fiber, 6: observation window, 7: first MO source gas pipe, 8: second MO source gas pipe, 9: a third MO source gas pipe; 10: furnace body rotation drive device, 11: furnace body rotation axis, 12: the furnace body is rotatably supported; 13: melting chamber, 14: melting chamber heater, 15: melting crucible, 15-1: smelting a crucible lower main body; 15-2: smelting the upper crucible main body; 15-3: smelting a crucible welding line; 15-4: a liquid discharge pipe; 16: aluminum alloy melt, 17: injecting a pressure pipe; 18: thermal insulation layer, 19: briquetting, 20: an auxiliary heater; 21: buffer crucible, 22: buffer crucible support, 23: copper mold; 24: a multifunctional pipeline; 25: a crucible clamp supporting rod; 26: the crucible rotates the driving motor.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, the embodiment of the invention discloses a preparation system of a carbon fiber reinforced aluminum matrix composite, which comprises a carbon fiber heating device, an aluminum alloy smelting device, a rotation driving device and a furnace body rotating bracket 12. The rotary driving device is rotatably connected to the upper end of the furnace body rotary support 12, the carbon fiber heating device and the aluminum alloy smelting device are fixed on the rotary driving device in a vertically opposite mode, and the carbon fiber heating device is used for heating carbon fibers 5 in the carbon fiber heating device and forming a refiner layer on the surface of the carbon fibers 5; the aluminum alloy smelting device is used for smelting an aluminum alloy block in the aluminum alloy smelting device into an aluminum alloy melt 16; after the aluminum alloy melt 16 is formed, the positions of the carbon fiber heating device and the aluminum alloy smelting device are driven to be exchanged through the rotary driving device, so that the generated aluminum alloy melt 16 enters the carbon fiber heating device, and the aluminum alloy melt and the carbon fibers are combined to form the carbon fiber reinforced aluminum matrix composite.
Further, as shown in fig. 1 and 2, the carbon fiber heating device includes a reaction crucible 4, a crucible fixture 3 is disposed outside the reaction crucible 4, carbon fibers 5 are disposed inside the reaction crucible 4, a first heating system 2 is disposed on the periphery of the crucible fixture 3, a reaction forming chamber 1 is disposed outside the first heating system 2, a crucible fixture support rod 25 is disposed on the upper side of the reaction forming chamber 1, a crucible rotation driving motor 26 is disposed at the upper end of the crucible fixture support rod 25, the lower end of the crucible fixture support rod 25 extends into the reaction forming chamber 1 and is fixedly connected to the reaction crucible 4, and the lower end of the reaction forming chamber 1 is fixedly connected to the rotation driving device. The outer side ends of a first MO source gas pipe 7, a second MO source gas pipe 8 and a third MO source gas pipe 9 are respectively connected with corresponding aluminum organic sources, titanium organic sources and trimethyl boron gas sources, and the inner side ends of the first MO source gas pipe, the second MO source gas pipe and the third MO source gas pipe enter the reaction crucible 4 after passing through the reaction forming chamber 1; and an air exhaust and aluminum alloy buffer device is arranged on the reaction forming chamber 1 at the upper side.
As shown in fig. 1 and 3, the reaction crucible 4 comprises a lower reaction crucible main body part 4-1 and an upper reaction crucible main body part 4-4, the lower reaction crucible main body part 4-1 is fixedly connected with the upper reaction crucible main body part 4-4, a reaction crucible cylinder 4-2 extending downwards is arranged at the lower end of the lower reaction crucible main body part 4-1, a reaction crucible opening is arranged at the lower end of the reaction crucible cylinder 4-2, and two reaction crucible through holes 4-3 are arranged at the upper end of the upper reaction crucible main body part 4-4; openings are formed in the upper end and the lower end of the crucible clamp 3, the reaction crucible barrel 4-2 extends out of the opening in the lower end of the crucible clamp 3, and the end parts of the inner sides of the first MO source gas pipe 7, the second MO source gas pipe 8 and the third MO source gas pipe 9 extend into the reaction crucible barrel 4-2; two connecting holes are arranged on the upper side wall of the reaction forming chamber 1 corresponding to the reaction crucible through hole 4-3, and the air exhaust and aluminum alloy buffer device is fixed in the connecting holes and communicated with the connecting holes.
Further, as shown in fig. 1 and 2, the air-extracting and aluminum alloy buffering device comprises a buffering crucible 21 fixed in the connecting hole, a buffering crucible support 22 fixed with the reaction forming chamber 1 and communicated with the buffering crucible 21 is arranged at the top of the buffering crucible 21, a copper mold 23 communicated with the buffering crucible support 22 is arranged at the upper end of the buffering crucible support 22, a multifunctional pipeline 24 communicated with the copper mold 23 is arranged at the upper end of the copper mold 23, and a one-way valve is arranged on the multifunctional pipeline 24.
Further, as shown in fig. 1, 2 and 4, a crucible holder insert ring 3-3 is provided on the upper side of the crucible holder 3, an insertion groove is provided on the top wall of the reaction forming chamber 1 corresponding to the crucible holder insert ring 3-3, the crucible holder insert ring 3-3 is inserted into the insertion groove during installation, a crucible holder cover 3-1 having an inner diameter smaller than the diameter of the crucible holder body is provided at the lower end of the crucible holder 3, and a rubber ring is provided in the insertion groove for sealing and pressure-bearing.
Further, as shown in fig. 1, 2 and 5, the aluminum alloy melting device comprises a melting crucible 15, a melting chamber heater 14 is arranged on the periphery of the melting crucible 15, and an aluminum alloy block to be melted is arranged in the melting crucible 15; a smelting chamber 13 is arranged outside the smelting chamber heater 14, the smelting crucible 15 comprises an upper smelting crucible main body 15-2 and a lower smelting crucible main body 15-1, the upper smelting crucible main body 15-2 and the lower smelting crucible main body 15-1 are welded together, a liquid discharge pipe 15-4 extending upwards is arranged on an upper end cover of the upper smelting crucible main body 15-2, the liquid discharge pipe 15-4 is communicated with the smelting crucible 15, a liquid discharge port is arranged at the upper end of the liquid discharge pipe 15-4, the liquid discharge port of the liquid discharge pipe 15-4 extends into the reaction crucible 4 of the carbon fiber heating device, a pressure injection pipe 17 is arranged on the lower smelting crucible main body 15-1, the upper end of the pressure injection pipe 17 extends into the lower smelting crucible main body 15-1 and is communicated with the smelting crucible 15, the lower end of the injection pipe 17 extends to the outer side of the lower side wall of the smelting chamber 13; a heat insulation layer 18 is arranged on the reaction forming chamber 1 on the upper side of the upper main body 15-2 of the smelting crucible, a pressing block 19 is arranged at the outer side end of the heat insulation layer 18, and the heat insulation layer 18 is fixed in an opening at the lower end of the reaction forming chamber 1 through the pressing block 19; an auxiliary heater 20 is arranged on the upper side of the heat insulation layer 18 and part of the liquid discharge pipe 15-4, and the auxiliary heating wire 20 is used for heating the liquid discharge pipe 15-4.
Before smelting begins, an aluminum alloy block is placed in the lower smelting crucible main body 15-1, then the lower smelting crucible main body 15-1 and the upper smelting crucible main body 15-2 are fixed together, a smelting crucible welding line 15-3 is formed in the middle, and the smelting crucible 15 can be made of quartz. Or the aluminum alloy block is placed in a ceramic or boron nitride crucible, then the aluminum alloy block is placed in the lower melting crucible main body 15-1, then the lower melting crucible main body 15-1 and the upper melting crucible main body 15-2 are welded together, and a welding line 15-3 of the melting crucible is formed in the middle.
Further, as shown in fig. 1 and 2, the rotation driving device includes a furnace body rotation driving device 10 and a furnace body rotation shaft 11, and the carbon fiber heating device and the aluminum alloy melting device are fixed on the furnace body rotation shaft 11. An observation window 6 is arranged on the lower side wall of the reaction forming chamber 1, and the related parts of the smelting crucible 15 and the reaction crucible 4 are quartz products, so that the condition in the reaction forming chamber 1 can be conveniently observed through the observation window.
Further, the outer diameter of the carbon fiber 5 is smaller than the inner diameter of the reaction crucible 4 and larger than the inner diameter of the reaction crucible tube 4-2. Carbon fibers 5 are loaded into the lower body portion 4-4 of the reaction crucible before melting, and then the upper body portion 4-1 of the reaction crucible and the lower body portion 4-4 of the reaction crucible are welded together.
The embodiment of the invention also discloses a preparation method of the carbon fiber reinforced aluminum matrix composite, the preparation method uses the preparation system, and the method comprises the following steps:
1) firstly, testing when the carbon fiber is heated to 500 ℃ and 1200 ℃, and using H2Depositing an aluminum organic source, a titanium organic source and trimethyl boron on the surface layer of the fiber filament for more than 95% of time of an aluminum-titanium-boron refiner layer by taking the aluminum organic source, the titanium organic source and the trimethyl boron as carrier gas, and recording the time as t;
2) fixing the reaction forming chamber 1 on the upper part of a furnace body rotating shaft 11, and fixing the smelting chamber 13 on the lower part of the furnace body rotating shaft 11;
3) an aluminum alloy block is placed in the lower melting crucible main body 15-1, then the lower melting crucible main body 15-1 and the upper melting crucible main body 15-2 are welded together to form a melting crucible 15, and then the melting crucible 15 is placed in the melting chamber 13;
4) before smelting, carbon fibers 5 are filled into a lower main body part 4-4 of the reaction crucible, and then an upper main body part 4-1 of the reaction crucible and the lower main body part 4-4 of the reaction crucible are welded together to form the reaction crucible 4; then placing the reaction crucible 4 in the crucible clamp 3, fixing the reaction crucible 4 through the crucible clamp gland 3-1, and simultaneously ensuring that the centers of the reaction crucible through hole 4-3 and the crucible clamp through hole 3-2 are positioned on a central line; then the crucible clamp 3 is placed in the reaction forming chamber 1 and fixed at the lower end of the crucible clamp support rod 25; meanwhile, the center lines of the reaction crucible through hole 4-3, the crucible clamp through hole 3-2 and the buffer crucible 21 are positioned on the same straight line, the initial position of the crucible clamp support rod 25 at the moment is recorded, and marking record is carried out;
5) the buffer crucible 21 is fixed in the air vent at the upper end of the reaction forming chamber 1 through a buffer crucible support 22 and is sequentially connected with a copper mold 23 and a multifunctional pipeline 24;
6) the reaction forming chamber 1 and the smelting chamber 13 are vacuumized to 10Pa-10 through a multifunctional pipeline 24-5Pa; starting a crucible rotation driving motor 26, and driving the crucible clamp 3 and the reaction crucible 4 to rotate through a crucible clamp supporting rod 25; then the first heating system 2 heats the carbon fiber 5 in the reaction crucible to 500-2As carrier gas, respectively discharging an aluminum organic source, a titanium organic source and trimethyl boron into the reaction forming chamber 1 through a first MO source gas pipe 7, a second MO source gas pipe 8 and a third MO source gas pipe 9; stopping vacuumizing, and ensuring that the internal pressure of the whole system is kept at 10-100Torr, so that an aluminum organic source, a titanium organic source and trimethylboron are deposited on the surface layer of the carbon fiber filament to form an aluminum-titanium-boron refiner layer;
7) after the reaction reaches the time t when more than 95% of fiber filament surface layers in the carbon fibers 5 form the aluminum-titanium-boron refiner layer, according to the reaction time, the time when more than 95% of fiber filament surface layers in the carbon fibers 5 form the aluminum-titanium-boron refiner layer is measured, the injection of organic sources in the first MO source air pipe 7, the second MO source air pipe 8 and the third MO source air pipe 9 is stopped, the reaction crucible 4 is stopped from rotating, the position mark on the crucible clamp support rod 25 is returned to the initial position, and the center lines of the reaction crucible through hole 4-3, the crucible clamp through hole 3-2 and the buffer crucible 21 are positioned on a straight line; the reaction gas and the unreacted gas are discharged out of the reaction forming chamber 1 along with the multifunctional pipeline 24; the first heating system 2 is adjusted to ensure that the temperature in the reaction forming chamber 1 is kept at about 500 +/-10 ℃, and simultaneously the reaction forming chamber 1 and the smelting chamber 7 are vacuumized to 10Pa-10 through the multifunctional pipeline 24-5Pa, and keeping a vacuumizing state, then starting a smelting chamber heater 14 to heat the aluminum alloy block in the smelting chamber 13 to be molten, and keeping the temperature at 700-;
8) starting the auxiliary heater 20, and heating the liquid discharge pipe 15-4 to above 700 ℃ to melt the aluminum alloy blocks;
9) starting a furnace body rotation drive 10, so that a furnace body rotation shaft 11 slowly drives a reaction forming chamber 1 and a smelting chamber 13 to rotate 180 degrees, an aluminum alloy melt 16 starts to enter a reaction crucible 4 through a liquid outlet under the action of gravity in the rotation process, the liquid level of the aluminum alloy melt in a reaction crucible opening 4-2 is observed through an observation window 6 in the rotation process, the melt is prevented from being sprayed out of the reaction crucible opening 4-2, and the rotation speed of the furnace body rotation shaft 11 is adjusted at any time; after the aluminum alloy melt is rotated by 180 degrees, the liquid level position of the aluminum alloy melt in the reaction crucible opening 4-2 is observed through the observation window 6, when the liquid level of the aluminum alloy melt is not higher than the liquid discharge opening, pressure is applied to the aluminum alloy melt through the injection pipe 17, so that the aluminum alloy melt is further pressed into gaps of the carbon fibers 5, when the liquid level of the aluminum alloy melt is close to the reaction crucible opening 4-2, the continuous injection of inert gas into the injection pipe 17 is stopped, and the aluminum alloy melt is slowly immersed into the middle of the carbon fiber filaments under the pressure; when the liquid level of the aluminum alloy in the reaction crucible opening 4-2 is lower than the lower end face of the reaction crucible opening 4-2, the pressure is applied to the injection pipe 17 again, and the process is repeated until the whole carbon fiber 5 is filled with the aluminum alloy melt 16;
10) excessive aluminum alloy melt 16 enters the buffer crucible 21 through the reaction crucible through hole 4-3 and the crucible clamp through hole 3-2; the aluminum alloy melt 16 enters the copper mold 23 through the buffer crucible 21 and then is solidified, and then the first heating system 2 is controlled to enable the aluminum alloy melt 16 in the carbon fibers 5 to be directionally solidified upwards from the bottom of the reaction crucible 4, so that the preparation of the carbon fiber reinforced aluminum alloy composite material is completed.
Correspondingly, the embodiment of the invention also discloses a carbon fiber reinforced aluminum matrix composite material which is prepared by using the preparation system or the preparation method.
Correspondingly, the embodiment of the invention also discloses a carbon fiber reinforced aluminum-based part prepared by using the carbon fiber reinforced aluminum-based composite material.
In conclusion, the system and the method of the invention prepare the carbon fiber reinforced aluminum matrix composite material by the integrated continuous molding process of the deposition and the smelting rotation of the carbon fiber surface refiner; the system and the method firstly deposit a layer of Al-Ti-B refiner on the surface layer of carbon fiber in a reaction forming chamber by a chemical vapor deposition method, then immerse the aluminum alloy melt smelted in a smelting chamber into the carbon fiber with Al-Ti-B surface deposited by a vacuum and pressure infiltration combination method, and deposit a layer of Al-Ti-B on the surface layer of carbon fiber in the casting and solidification process to inhibit the reaction of the carbon fiber and the aluminum alloy, refine the aluminum alloy structure and enhance the bonding strength of the carbon fiber and the aluminum alloy.
Claims (6)
1. A preparation system of carbon fiber reinforced aluminum matrix composite is characterized in that: the carbon fiber refining device comprises a carbon fiber heating device, an aluminum alloy smelting device, a rotary driving device and a furnace body rotary support (12), wherein the rotary driving device is rotatably connected to the upper end of the furnace body rotary support (12), the carbon fiber heating device and the aluminum alloy smelting device are fixed on the rotary driving device in an up-down opposite mode, and the carbon fiber heating device is used for heating carbon fibers (5) in the carbon fiber heating device and forming a refiner layer on the surface of the carbon fibers (5); the aluminum alloy smelting device is used for smelting aluminum alloy blocks in the aluminum alloy smelting device into an aluminum alloy melt (16); after an aluminum alloy melt (16) is formed, the positions of the carbon fiber heating device and the aluminum alloy smelting device are driven to exchange through the rotary driving device, so that the generated aluminum alloy melt (16) enters the carbon fiber heating device, and the aluminum alloy melt and the carbon fibers are combined to form the carbon fiber reinforced aluminum-based composite material;
the carbon fiber heating device comprises a reaction crucible (4), a crucible clamp (3) is arranged on the outer side of the reaction crucible (4), carbon fibers (5) are arranged inside the reaction crucible (4), a first heating system (2) is arranged on the periphery of the crucible clamp (3), a reaction forming chamber (1) is arranged on the outer side of the first heating system (2), a crucible clamp supporting rod (25) is arranged on the upper side of the reaction forming chamber (1), a crucible rotation driving motor (26) is arranged at the upper end of the crucible clamp supporting rod (25), the lower end of the crucible clamp supporting rod (25) extends into the reaction forming chamber (1) and is fixedly connected with the reaction crucible (4), the lower end of the reaction forming chamber (1) is fixedly connected with the rotation driving device, and a first MO source gas pipe (7), a second MO source gas pipe (8), The outer side end of a third MO source gas pipe (9) is respectively connected with a corresponding aluminum organic source, a corresponding titanium organic source and a corresponding gas source of trimethyl boron, and the inner side ends of the first MO source gas pipe, the second MO source gas pipe and the third MO source gas pipe enter the reaction crucible (4) after passing through the reaction forming chamber (1); an air exhaust and aluminum alloy buffer device is arranged on the reaction forming chamber (1) at the upper side;
the reaction crucible (4) comprises a lower reaction crucible main body part (4-1) and an upper reaction crucible main body part (4-4), the lower reaction crucible main body part (4-1) is fixedly connected with the upper reaction crucible main body part (4-4), the lower end of the lower reaction crucible main body part (4-1) is provided with a reaction crucible cylinder (4-2) extending downwards, the lower end of the reaction crucible cylinder (4-2) is provided with a reaction crucible opening, and the upper end of the upper reaction crucible main body part (4-4) is provided with two reaction crucible through holes (4-3); openings are formed in the upper end and the lower end of the crucible clamp (3), the reaction crucible barrel (4-2) extends out of the opening in the lower end of the crucible clamp (3), and the end parts of the inner sides of the first MO source gas pipe (7), the second MO source gas pipe (8) and the third MO source gas pipe (9) extend into the reaction crucible barrel (4-2); two connecting holes are formed in the upper side wall of the reaction forming chamber (1) corresponding to the reaction crucible through hole (4-3), and the air exhaust and aluminum alloy buffer device is fixed in the connecting holes and communicated with the connecting holes.
2. The system for producing a carbon fiber-reinforced aluminum-based composite material according to claim 1, wherein: the air suction and aluminum alloy buffering device comprises a buffering crucible (21) fixed in the connecting hole, a buffering crucible support (22) fixed with the reaction forming chamber (1) and communicated with the buffering crucible (21) is arranged at the top of the buffering crucible (21), a copper mold (23) communicated with the buffering crucible support (22) is arranged at the upper end of the buffering crucible support (22), a multifunctional pipeline (24) communicated with the copper mold (23) is arranged at the upper end of the copper mold (23), and a one-way valve is arranged on the multifunctional pipeline (24).
3. The system for producing a carbon fiber-reinforced aluminum-based composite material according to claim 1, wherein: the crucible clamp inserting ring (3-3) is arranged on the upper side of the crucible clamp (3), an inserting groove is formed in the top wall of the reaction forming chamber (1) corresponding to the crucible clamp inserting ring (3-3), the crucible clamp inserting ring (3-3) is inserted into the inserting groove after a rubber ring is installed during installation, and a crucible clamp pressing cover (3-1) with the inner diameter smaller than the diameter of the crucible clamp main body is arranged at the lower end of the crucible clamp (3).
4. The system for producing a carbon fiber-reinforced aluminum-based composite material according to claim 1, wherein: the aluminum alloy smelting device comprises a smelting crucible (15), a smelting chamber heater (14) is arranged on the periphery of the smelting crucible (15), and an aluminum alloy block to be smelted is arranged in the smelting crucible (15); a smelting chamber (13) is arranged on the outer side of the smelting chamber heater (14), the smelting crucible (15) comprises an upper smelting crucible main body (15-2) and a lower smelting crucible main body (15-1), the upper smelting crucible main body (15-2) and the lower smelting crucible main body (15-1) are welded together, a liquid discharge pipe (15-4) extending upwards is arranged on the upper end cover of the upper smelting crucible main body (15-2), the liquid discharge pipe (15-4) is communicated with the smelting crucible (15), a liquid discharge port is arranged at the upper end of the liquid discharge pipe (15-4), the liquid discharge port of the liquid discharge pipe (15-4) extends into the reaction crucible (4) of the carbon fiber heating device, a pressure injection pipe (17) is arranged on the lower smelting crucible main body (15-1), and the upper end of the pressure injection pipe (17) extends into the lower smelting crucible main body (15-1), the lower end of the injection pipe (17) extends to the outer side of the lower side wall of the smelting chamber (13); a heat insulation layer (18) is arranged on the reaction forming chamber (1) on the upper side of the upper main body (15-2) of the smelting crucible, a pressing block (19) is arranged at the outer side end of the heat insulation layer (18), and the heat insulation layer (18) is fixed in an opening at the lower end of the reaction forming chamber (1) through the pressing block (19); auxiliary heaters (20) are arranged on the upper side of the heat insulation layer (18) and part of the liquid discharge pipe (15-4).
5. The system for producing a carbon fiber-reinforced aluminum-based composite material according to claim 1, wherein: the rotary driving device comprises a furnace body rotary driving device (10) and a furnace body rotating shaft (11), and the carbon fiber heating device and the aluminum alloy smelting device are fixed on the furnace body rotating shaft (11).
6. The system for producing a carbon fiber-reinforced aluminum-based composite material according to claim 1, wherein: an observation window (6) is arranged on the lower side wall of the reaction forming chamber (1), and the smelting crucible (15) and the reaction crucible (4) are quartz products.
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| CN113560607A (en) * | 2021-08-07 | 2021-10-29 | 王书杰 | 3D forming system of aluminum-based continuous carbon fiber reinforced composite material |
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Effective date of registration: 20210408 Address after: 341000 south of Ouxiang road and east of shangou Avenue, shangou Industrial Park, Yudu County, Ganzhou City, Jiangxi Province Applicant after: Jiangxi Zhongjuhong New Material Technology Co.,Ltd. Address before: 050000 1-2-601, Xinhua District, Shijiazhuang, Hebei 697 Applicant before: Wang Shujie |
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Application publication date: 20191101 Assignee: Jiangxi Wanglai Technology Co.,Ltd. Assignor: Jiangxi Zhongjuhong New Material Technology Co.,Ltd. Contract record no.: X2023980044075 Denomination of invention: Preparation system, composite materials, and components of carbon fiber reinforced aluminum matrix composites Granted publication date: 20210427 License type: Common License Record date: 20231020 |