CN110125367B - Device for preparing multi-metal fiber composite material and control method - Google Patents
Device for preparing multi-metal fiber composite material and control method Download PDFInfo
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- CN110125367B CN110125367B CN201910354960.0A CN201910354960A CN110125367B CN 110125367 B CN110125367 B CN 110125367B CN 201910354960 A CN201910354960 A CN 201910354960A CN 110125367 B CN110125367 B CN 110125367B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- 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
Abstract
The invention belongs to the technical field of material processing, and discloses a device for preparing a multi-metal fiber composite material, which comprises a smelting chamber, wherein a cooling forming chamber is arranged below the smelting chamber, a stirring rod is arranged on the side surface of the smelting chamber, the smelting chamber is communicated with a mechanical pump through a vent pipeline, a first crucible and a second crucible are arranged at the bottom of the smelting chamber, a vent hole is arranged on the side wall of the smelting chamber, a control valve is arranged on the vent hole, a mold for preparing the multi-metal fiber composite material is arranged in the cooling forming chamber, the second crucible is used for bearing molten alloy liquid, the bottom of the second crucible is communicated with a cavity of the mold, a plurality of metal fibers are arranged in the cavity along the axial direction of the cavity, the first crucible is used for bearing metal particles or powder to be smelted, and the mechanical pump is used for vacuumizing the smelting chamber so as to further vacuumi. A control method for an apparatus for preparing a multi-metal fiber composite material is also disclosed.
Description
Technical Field
The invention relates to the technical field of material processing, in particular to a device for preparing a multi-metal fiber composite material and a control method.
Background
In recent years, with the rapid development of aerospace and transportation tools, great demands are made on materials with light weight and high strength. In particular, in the aerospace industry, the manufacture of complex-shaped parts and fasteners requires materials with high tensile and bending strength.
Currently, to obtain materials with higher strength, composite materials are used to make complex shaped parts and fasteners. In most cases, the alloy is manufactured by an advanced manufacturing process such as a vacuum suction casting process, but the success rate of the process is not high, and the obtained parts have defects of shrinkage cavities, shrinkage porosity and the like. Therefore, there is an urgent need to improve the existing processing methods to prepare materials meeting the market demand.
Disclosure of Invention
The invention provides a device for preparing a multi-metal fiber composite material and a control method, and solves the problems that the processing method of the existing light and high-strength material is low in success rate, and the processed parts are internally provided with shrinkage cavities, shrinkage porosity and the like.
The invention can be realized by the following technical scheme:
the utility model provides a device for preparing many metal fiber combined material, is including smelting the room, the below of smelting the room is provided with the cooling shaping room, and the side is provided with the stirring rod, it passes through vent pipe and mechanical pump intercommunication to smelt the room, and its bottom is provided with first crucible and second crucible, and its lateral wall is provided with the blow vent, be provided with control flap on the blow vent, the inside mould that is provided with the preparation many metal fiber combined material of cooling shaping room, second crucible are used for bearing the alloy liquid after smelting, and its bottom communicates with the die cavity of mould, the inside many metal fiber that is provided with of die cavity, first crucible is used for bearing the metal granule or the powder of treating the smelting, the mechanical pump is used for carrying out the evacuation to smelting the room, and then carries out the evacuation to the die cavity of mould.
Further, the mould includes mould and lower mould, the top of going up the mould is provided with the first through-hole that extends to the bottom, and the bottom is seted up and is waited to prepare many metal fiber composite's appearance complex first recess, the one end of first through-hole and the bottom intercommunication of second crucible, the other end and first recess intercommunication, the top of lower mould is seted up and is waited to prepare many metal fiber composite's appearance complex second recess, the second recess cooperates with first recess to constitute jointly and is waited to prepare many metal fiber composite's appearance complex die cavity.
Furthermore, many metal fiber all sets up along the axial of die cavity, and its both ends all set up on two relative lateral walls of die cavity through the sheet metal, be provided with a plurality of through-holes and first screw hole on the sheet metal the position that the lateral wall corresponds the through-hole is provided with the second screw hole that extends along metal fiber, the through-hole passes through bolted connection with the second screw hole, first screw hole and headless bolt cooperation, headless bolt passes first screw hole and arrives the surface of the lateral wall of mould.
Further, magnets are arranged on the surfaces of the two outer side walls, and the connecting line of the centers of the two magnets is overlapped with the axial center line of the cavity.
Furthermore, the bottom of the second crucible is provided with a second through hole extending to the bottom of the smelting chamber, a graphite nozzle is arranged inside the second through hole, the outer diameter of the graphite nozzle is in tight fit with the inner diameter of the second through hole, a channel for alloy liquid to pass through is arranged along the axial direction of the graphite nozzle, and the channel is communicated with the first through hole.
Furthermore, a cooling water pipe is arranged at the bottom of the lower die and communicated with the refrigerator.
Further, a pneumatic film switch valve K1, a pneumatic film adjusting valve T1 and a vacuum pressure gauge are arranged on the vent pipeline, the vacuum pressure gauge is used for detecting the vacuum degree in the vent pipeline, an induction coil is arranged at one end, entering the smelting chamber, of the stirring rod, a spoon head is arranged at the end of the stirring rod and used for transferring the solid, condensed by the alloy liquid smelted in the first crucible, to the second crucible, and the induction coil is used for electromagnetically stirring the alloy liquid smelted in the first crucible.
A control method based on the above-described apparatus for producing a multi-metal fiber composite material, comprising the steps of:
step one, arranging a plurality of metal fibers in a cavity of a mold by means of a thin plate, straightening, putting the whole mold into a cooling forming chamber, and installing the whole mold at the bottom of a smelting chamber;
opening an upper cover of the smelting chamber, putting metal particles or powder to be smelted into a first crucible, vacuumizing cavities of the smelting chamber and a mould by using a mechanical pump, opening a switch of the smelting chamber, and heating the metal particles or powder to be smelted;
step three, in the melting process of the metal particles or powder to be melted, performing electromagnetic stirring and turning by using a stirring rod until the metal particles or powder become alloy liquid;
step four, closing a switch of the smelting chamber, performing water cooling on the alloy liquid until the alloy liquid is solidified into an alloy block, and moving the alloy block to a second crucible by using a stirring rod;
opening a switch of the smelting chamber, heating the alloy block in the second crucible until the alloy block becomes alloy liquid again and flows into a cavity of the mold, and simultaneously opening a refrigerator to carry out water cooling on the alloy liquid flowing into the mold;
and step six, after water cooling is finished, opening a control valve corresponding to a vent of the smelting chamber, taking out the mold from the cooling forming chamber after the air pressure inside the smelting chamber is balanced with the air pressure outside the smelting chamber, and taking out the casting.
And further, fixing two ends of the metal fibers on the corresponding thin plates respectively, then utilizing bolts to penetrate through holes in the thin plates to be matched with second threaded holes corresponding to the outer side walls, but the thin plates are not in contact with the corresponding outer side walls, a gap is reserved between the thin plates and the corresponding outer side walls, then utilizing headless bolts to penetrate through first threaded holes in the thin plates to reach the surfaces of the corresponding outer side walls, and adjusting the tensioning degree of the metal fibers by rotating the headless bolts.
Further, the metal particles or powder to be smelted in the first crucible is heated to a molten state, the metal particles or powder is turned over for many times by using a spoon head of the stirring rod, and the metal particles or powder is stirred for many times by using the induction coil after being heated to an alloy liquid state.
The beneficial technical effects of the invention are as follows:
on the basis of the traditional gravity casting process, the smelting chamber is communicated with the cavity of the mold in the cooling forming chamber through the graphite nozzle, the smelting chamber and the cavity of the mold are vacuumized by means of a mechanical pump and a vacuum pressure gauge, and the smelted alloy liquid can enter the cavity of the mold from the smelting chamber under the action of self gravity, so that the whole preparation process of the multi-metal fiber composite material is carried out in a vacuum environment, the phenomena of turbulence and gas entrainment of the metal liquid in the casting process are avoided, the defects of shrinkage porosity, shrinkage cavity and the like are greatly reduced, and the oxidation phenomenon generated by casting in the air is effectively improved. Meanwhile, the cooling water pipe is arranged at the bottom of the die, the alloy liquid in the die can be rapidly solidified through an external refrigerator, a large temperature gradient is obtained, the dendrite spacing is refined, a high cooling rate is obtained, the defects are reduced, and the mechanical property of the casting is improved. In addition, a plurality of metal fibers embedded in the die in advance are integrated with the alloy liquid, and the plurality of metal fibers in the die are fixed and tensioned under the action of the round thin sheet, so that the tensile strength and the bending strength of the prepared material are increased, namely, the mechanical property is greatly improved, and the characteristic of high strength of the composite material is achieved.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic structural view of a mold of the present invention;
FIG. 3 is a schematic structural view of a portion of an upper die of the present invention;
FIG. 4 is a schematic structural view of another portion of the upper die of the present invention;
FIG. 5 is a schematic structural view of a lower die of the present invention;
FIG. 6 is an enlarged schematic view of portion A of FIG. 1 in accordance with the present invention;
FIG. 7 is a schematic view of the structure of the sheet of the present invention;
the method comprises the following steps of 1-smelting chamber, 101-first crucible, 102-second crucible, 103-observation window, 104-vent hole, 105-graphite nozzle, 1051-channel, 2-cooling forming chamber, 3-stirring rod, 31-induction coil, 32-spoon head, 33-insulating protective sleeve, 4-vent pipeline, 5-mechanical pump, 6-mould, 61-upper mould, 611-first through hole, 612-first groove, 62-lower mould, 621-second groove, 622-groove, 623-second threaded hole, 7-metal fiber, 8-vacuum pressure gauge, 9-cooling water pipe, 10-refrigerator, 11-sheet, 1101-through hole, 1102-first threaded hole, 12-magnet and 13-power supply.
Detailed Description
The following detailed description of the preferred embodiments will be made with reference to the accompanying drawings.
As shown in figure 1, the invention provides a device for preparing a multi-metal fiber composite material, which comprises a smelting chamber 1, wherein a cooling forming chamber 2 is arranged below the smelting chamber 1, a stirring rod 3 is arranged on the side surface of the smelting chamber, the smelting chamber 1 is communicated with a mechanical pump 5 through an air duct 4, a first crucible 101 and a second crucible 102 are arranged at the bottom of the smelting chamber, an observation window 103 is arranged at the top of the smelting chamber, an air vent 104 is arranged on the side wall of the smelting chamber, a pneumatic film switch valve K1 is arranged on the air vent 104, a mold 6 for preparing the multi-metal fiber composite material is arranged inside the cooling forming chamber 2, the second crucible 102 is used for bearing molten alloy liquid, the bottom of the second crucible is communicated with a cavity of the mold 6, a plurality of metal fibers 7 are arranged inside the cavity, and the first crucible 101 is used for bearing metal particles or powder to be.
This mechanical pump 5 is used for carrying out the evacuation to smelting chamber 1, and then carries out the evacuation to the die cavity of mould 6, is provided with pneumatic film switch valve K2, pneumatic film governing valve T1 and vacuum pressure gauge 8 on vent pipe 4, and this vacuum pressure gauge 8 is used for detecting the vacuum degree in the vent pipe 4. When the vacuum is pumped, the pneumatic membrane switch valve K1 on the air vent 104 is closed, the pneumatic membrane switch valve K2 and the pneumatic membrane pressure regulating valve T1 on the air vent pipeline 4 are opened, the smelting chamber 1 is pumped by the mechanical pump 5, the internal pressure value is observed by the vacuum pressure gauge 7, the internal vacuum degree is controlled by the pneumatic membrane pressure regulating valve T1, and when the internal air pressure reaches the test condition, the mechanical pump 5, the pneumatic membrane switch valve K2 and the pneumatic membrane pressure regulating valve T1 are closed.
As shown in fig. 1 and 2, the mold 6 includes an upper mold 61 and a lower mold 62, a first through hole 611 extending toward the bottom is provided at the top of the upper mold 61, the first through hole 611 is in a trumpet shape, a large opening is located at the top of the upper mold 61, as shown in fig. 3 and 4, a first groove 612 matching with the shape of the multi-metal fiber composite material to be prepared is provided at the bottom of the upper mold 61, one end of the first through hole 611, i.e., the trumpet-shaped large opening, is communicated with the bottom of the second crucible 102, and the other end is communicated with the first groove 612, for convenience of installation and processing, the upper mold 61 can be divided into two parts in an axial direction of the first through hole 611, and a threaded hole for installing to the bottom of the melting chamber.
As shown in fig. 5, a second groove 621 which is matched with the shape of the multi-metal fiber composite material to be prepared is formed in the top of the lower mold 62, the second groove 621 and the first groove 612 are matched to jointly form a cavity which is matched with the shape of the multi-metal fiber composite material to be prepared, a cooling water pipe 9 is arranged at the bottom of the lower mold 62, the cooling water pipe 9 is communicated with a refrigerator 10, a cavity can be formed at the bottom of the cooling water pipe 9, the cooling water pipe 9 is placed in the cavity, two ends of the cooling water pipe 9 are respectively provided with an opening which serves as an inlet and an outlet of the cooling water pipe 9 and is convenient to be communicated with the refrigerator 10, the cooling water pipe 9 can be properly close to the second groove 621, and the alloy liquid. As shown in fig. 6, a second through hole extending to the bottom of the melting chamber 1 is provided in the bottom of the second crucible 102, a graphite nozzle 105 is provided in the second through hole, the graphite nozzle 105 has an outer diameter closely matching the inner diameter of the second through hole, a passage 1051 for passing the alloy liquid is provided in the axial direction thereof, and the passage 1051 communicates with the first through hole 611. Therefore, the smelting chamber 1 is communicated with the cavity of the mold 6 through the channel 1051 of the graphite nozzle 105, when the smelting chamber 1 is vacuumized by the mechanical pump 5, the cavity of the mold 6 can be vacuumized, meanwhile, the alloy liquid in the second crucible 12 can enter the cavity of the mold 6 through the channel 1051 under the action of self gravity, and the alloy liquid in the cavity can be cooled by the cooling water pipe 9 and the refrigerator 10, so that the whole preparation process of the multi-metal fiber composite material is carried out in a vacuum environment, the phenomena of turbulence and air entrainment generated in the casting process of the metal liquid are avoided, the defects of shrinkage porosity, shrinkage cavity and the like are greatly reduced, and the oxidation phenomenon generated in the air casting process is effectively improved. Meanwhile, the alloy liquid in the casting can be rapidly solidified, a larger temperature gradient is obtained, the dendritic crystal spacing is refined, a higher cooling rate is obtained, the generation of defects is reduced, and the mechanical property of the casting is improved. In addition, when the channel 1501 is blocked by the alloy liquid due to improper operation or the alloy liquid contains more impurities, the graphite nozzle 105 can be directly knocked off for maintenance, so that the damage to the smelting chamber 1 is avoided.
As shown in fig. 1 and 5, a plurality of metal fibers 7 are arranged along the axial direction of the cavity, both ends of the metal fibers 7 are arranged on two opposite outer side walls of the cavity through thin plates 11, grooves 622 are arranged on the outer side walls corresponding to the thin plates 11, the grooves 622 comprise two parts and are symmetrically distributed on the upper die 61 and the lower die 62, as shown in fig. 7, a plurality of through holes 1101 and first threaded holes 1102, which can be two respectively, are uniformly and symmetrically arranged on the thin plates 11, second threaded holes 623 extending along the metal fibers 7 are arranged on the outer side walls corresponding to the through holes 1101, the through holes 1101 are connected with the second threaded holes 623 through bolts, the first threaded holes 1102 are matched with headless bolts, and the headless bolts pass through the first threaded holes 1102 to reach the surface of the outer side walls.
In order to ensure that the metal fiber 7 can maintain a straightened state in the cavity, two ends of the metal fiber are respectively fixed on the corresponding thin plates 11, then bolts are used for penetrating through the through holes 1001 on the thin plates 11 to be matched with the second threaded holes 623 on the corresponding outer side walls, the thin plates 11 are arranged in the grooves 622, but the thin plate 11 is not locked and fixed on the corresponding outer side wall at the moment, but is not screwed tightly, so that the thin plate and the outer side wall are not contacted and a gap is left, then, a headless bolt is used to pass through the first threaded hole 1102 on the thin plate 11 to reach the surface of the corresponding outer sidewall, because the corresponding position on the outer side wall is not provided with the holes, the thin plate 11 can be tensioned to the center far away from the mould 6 through the headless bolt, the thin plate 11 moves outwards for a certain distance when the headless bolt is screwed for one circle, and the inner metal fibers 7 are pulled tighter, so that the tightening of the plurality of metal fibers 7 can be adjusted by turning the headless bolt. Further, the plurality of metal fibers 7 may be restrained by the magnets 12 provided on the surfaces of the two outer side walls, and the metal fibers 7 may be restrained in a parallel state with respect to each other by a connecting line of the centers of the two magnets 12 being overlapped with the axial center line of the cavity.
An induction coil 31 is arranged at one end of the stirring rod 3 entering the smelting chamber 1, a spoon head 32 is arranged at the end part of the induction coil and is used for transferring the solid after the alloy liquid smelted in the first crucible 101 is condensed to the second crucible 102, and the induction coil 31 is connected with a power supply 13 through an electromagnetic valve K3 and is used for carrying out electromagnetic stirring on the alloy liquid smelted in the first crucible 101. When the metal particles or powder are observed to be melted into a molten state through the observation window 103, the molten alloy liquid is turned over by the spoon head 32 at the lower end of the stirring rod 3 for five times or so, and the power supply 13 and the electromagnetic valve K3 are turned on, so that the induction coil 31 of the stirring rod 3 is energized, a magnetic field is generated nearby, and the alloy liquid in the first crucible 101 is passively stirred. To ensure safety during this process, the hand should manipulate the stir bar with the insulating protective sheath 33. After the electromagnetic stirring was continuously performed three to five times, the electromagnetic valve K3 and the power supply 13 were closed. Continuing heating, after metal particles or powder are melted into alloy liquid, temporarily closing a switch of the melting chamber 1, rapidly cooling and re-solidifying the alloy liquid by means of water cooling in the melting chamber 1 to form an alloy block, moving the alloy block into a second crucible 102 from a first crucible 101 by using a spoon head 32 at the bottom of the stirring rod 3, and re-opening the switch of the melting chamber 1, wherein at the moment, the bottom of the second crucible 102 is communicated with a cavity in the mold 6 through a graphite nozzle 105, so that once the alloy block is heated and melted, the alloy liquid in the mold can immediately enter the cavity in the mold 6 by means of self gravity.
The invention also provides a control method based on the device for preparing the multi-metal fiber composite material, which comprises the following steps:
firstly, arranging a plurality of metal fibers 7 in a cavity of a mold 6 by means of a thin plate 11, straightening, putting the whole mold 6 into a cooling forming chamber 2, and installing the whole mold 6 at the bottom of a smelting chamber 1;
step two, opening an upper cover of the smelting chamber 1, putting metal particles or powder to be smelted into the first crucible 101, vacuumizing the cavities of the smelting chamber 1 and the mould 6 by using the mechanical pump 5, and then opening a switch of the smelting chamber 1 to heat the metal particles or powder to be smelted;
step three, in the melting process of the metal particles or powder to be melted, carrying out electromagnetic stirring and turning by using a stirring rod 3 until the metal particles or powder become alloy liquid;
step four, closing a switch of the smelting chamber 1, performing water cooling on the alloy liquid until the alloy liquid is solidified into an alloy block, and moving the alloy block to the second crucible 102 by using the stirring rod 1;
step five, opening a switch of the smelting chamber 1, heating the alloy blocks in the second crucible 102 until the alloy blocks become alloy liquid again and flow into the cavity of the mold 6, and simultaneously opening the refrigerator 10 to carry out water cooling on the alloy liquid flowing into the mold 6;
and step six, after water cooling is finished, opening a control valve K1 corresponding to the air vent 104 of the smelting chamber 1, taking out the mold 6 from the cooling forming chamber 2 after the air pressure inside the smelting chamber 1 is balanced with the air pressure outside the smelting chamber, and taking out the casting.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is therefore defined by the appended claims.
Claims (9)
1. The utility model provides a device for preparing many metal fiber composite, includes the smelting chamber, the below of smelting chamber is provided with the cooling shaping room, and the side is provided with the stirring rod, its characterized in that: the melting chamber is communicated with a mechanical pump through a vent pipeline, a first crucible and a second crucible are arranged at the bottom of the melting chamber, a vent hole is arranged on the side wall of the melting chamber, a control valve is arranged on the vent hole, a mold for preparing the multi-metal fiber composite material is arranged in the cooling forming chamber, the second crucible is used for bearing the melted alloy liquid, the bottom of the second crucible is communicated with a cavity of the mold, a plurality of metal fibers are arranged in the cavity along the axial direction of the cavity, the first crucible is used for bearing metal particles or powder to be melted, the mechanical pump is used for vacuumizing the melting chamber so as to vacuumize the cavity of the mold,
many metallic fiber's both ends all set up on two lateral walls that the die cavity is relative through the sheet metal, be provided with a plurality of through-holes and first screw hole on the sheet metal the position that the lateral wall corresponds the through-hole is provided with the second screw hole that extends along metallic fiber, the through-hole passes through bolted connection with the second screw hole, first screw hole and headless bolt cooperation, the headless bolt passes first screw hole and arrives the surface of the lateral wall of mould.
2. The apparatus for preparing a multi-metal fiber composite material according to claim 1, wherein: the mould includes mould and lower mould, the top of going up the mould is provided with the first through-hole that extends to the bottom, and the first recess of appearance complex with waiting to prepare many metal fiber composite is seted up to the bottom, the one end of first through-hole and the bottom intercommunication of second crucible, the other end and first recess intercommunication, the top of lower mould is seted up and is waited to prepare many metal fiber composite's appearance complex second recess, the second recess cooperates with first recess to constitute jointly and waits to prepare many metal fiber composite's appearance complex die cavity.
3. The apparatus for preparing a multi-metal fiber composite material according to claim 1, wherein: magnets are arranged on the surfaces of the two outer side walls, and the connecting line of the centers of the two magnets is overlapped with the axial center line of the cavity.
4. The apparatus for producing a multi-metal fiber composite material according to claim 2, wherein: the bottom of the second crucible is provided with a second through hole extending to the bottom of the smelting chamber, a graphite nozzle is arranged inside the second through hole, the outer diameter of the graphite nozzle is tightly matched with the inner diameter of the second through hole, a channel for alloy liquid to pass through is arranged along the axial direction of the graphite nozzle, and the channel is communicated with the first through hole.
5. The apparatus for producing a multi-metal fiber composite material according to claim 2, wherein: and a cooling water pipe is arranged at the bottom of the lower die and is communicated with the refrigerator.
6. The apparatus for preparing a multi-metal fiber composite material according to claim 1, wherein: the vacuum stirring device is characterized in that a pneumatic film switch valve K1, a pneumatic film adjusting valve T1 and a vacuum pressure gauge are arranged on the vent pipeline, the vacuum pressure gauge is used for detecting the vacuum degree in the vent pipeline, an induction coil is arranged at one end, entering the smelting chamber, of the stirring rod, a spoon head is arranged at the end of the stirring rod and used for transferring the solid, condensed by the alloy liquid smelted in the first crucible, to the second crucible, and the induction coil is used for electromagnetically stirring the alloy liquid smelted in the first crucible.
7. A control method for an apparatus for manufacturing a multi-metal fiber composite material according to claim 1, characterized by comprising the steps of:
step one, arranging a plurality of metal fibers in a cavity of a mold by means of a thin plate, straightening, putting the whole mold into a cooling forming chamber, and installing the whole mold at the bottom of a smelting chamber;
opening an upper cover of the smelting chamber, putting metal particles or powder to be smelted into a first crucible, vacuumizing cavities of the smelting chamber and a mould by using a mechanical pump, opening a switch of the smelting chamber, and heating the metal particles or powder to be smelted;
step three, in the melting process of the metal particles or powder to be melted, performing electromagnetic stirring and turning by using a stirring rod until the metal particles or powder become alloy liquid;
step four, closing a switch of the smelting chamber, performing water cooling on the alloy liquid until the alloy liquid is solidified into an alloy block, and moving the alloy block to a second crucible by using a stirring rod;
opening a switch of the smelting chamber, heating the alloy block in the second crucible until the alloy block becomes alloy liquid again and flows into a cavity of the mold, and simultaneously opening a refrigerator to carry out water cooling on the alloy liquid flowing into the mold;
and step six, after water cooling is finished, opening a control valve corresponding to a vent of the smelting chamber, taking out the mold from the cooling forming chamber after the air pressure inside the smelting chamber is balanced with the air pressure outside the smelting chamber, and taking out the casting.
8. The control method of an apparatus for manufacturing a multi-metal fiber composite material according to claim 7, characterized in that: fixing the two ends of the metal fibers on the corresponding thin plates respectively, then utilizing the bolts to penetrate through the through holes in the thin plates to be matched with the second threaded holes corresponding to the outer side walls, but the thin plates are not in contact with the corresponding outer side walls, a gap is reserved between the thin plates and the corresponding outer side walls, then utilizing the headless bolts to penetrate through the first threaded holes in the thin plates to reach the surfaces of the corresponding outer side walls, and adjusting the tensioning degree of the metal fibers by rotating the headless bolts.
9. The control method of an apparatus for manufacturing a multi-metal fiber composite material according to claim 7, characterized in that: and heating metal particles or powder to be smelted in the first crucible to a molten state, turning the metal particles or powder to be smelted for many times by using a spoon head of the stirring rod, heating the metal particles or powder to an alloy liquid state, and stirring the metal particles or powder for many times by using the induction coil.
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| JPH07185777A (en) * | 1993-12-27 | 1995-07-25 | Ishikawajima Harima Heavy Ind Co Ltd | Device for producing fiber reinforced metal and its production |
| CN103540873A (en) * | 2013-09-23 | 2014-01-29 | 南昌航空大学 | Liquid-state near-net forming method and device for continuous carbon fiber enhanced aluminum-based composite material |
| CN104174831A (en) * | 2014-09-02 | 2014-12-03 | 哈尔滨工业大学 | Casting method of high-volume-fraction reinforced-phase titanium-based composite material casting |
| CN105772691A (en) * | 2016-05-20 | 2016-07-20 | 河南理工大学 | Integrated forming device and method for aluminum matrix composite thin-walled pieces |
| CN107058785A (en) * | 2017-03-21 | 2017-08-18 | 湖北玉立恒洋新材料科技有限公司 | SiC particulate reinforced aluminum matrix composites preparation method |
| CN109468549A (en) * | 2018-12-10 | 2019-03-15 | 南昌航空大学 | A kind of near-net-shape method of 3D braided fiber enhancing metal-base composites |
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