Processing method of continuous carbon fiber reinforced metal matrix composite

Abstract

The invention discloses a processing method of a continuous carbon fiber reinforced metal matrix composite, which is characterized in that on the basis of metal melting coating equipment, a carbon fiber scroll and a godet wheel are arranged above a crucible, a godet tube is arranged in the crucible, the upper end of a coating head is communicated with an outlet at the bottom of the crucible, and the lower end of the coating head is communicated with an outlet at the bottom of the crucible; a steering engine shaft and a high-speed camera are additionally arranged on one side of a coating head, a cutter is connected to the steering engine shaft and is flush with the coating head, a welding gun is installed on the other side of the coating head, an electromagnetic coil is wound on the outer wall, right opposite to a base plate and a crucible, of the coating head, a resistance wire is wound on the outer side of the coating head, and after heating, the coating head is heated. Carbon fibers on the carbon fiber scroll flow out of the coating head along with molten metal through the godet wheel and the godet pipe and fall into a micro molten pool formed by the welding gun on the base plate, and the air supply system controls the flow speed of the molten metal on one hand and protects the molten metal from being oxidized by air on the other hand. According to the system and method, continuous carbon fiber reinforced metal matrix composite machining can be achieved, the preparation cost is low, and the efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of 3D printing and relates to a processing method of a continuous carbon fiber reinforced metal matrix composite material. Background Art

[0002] Additive manufacturing technology, also known as 3D printing technology, is a technology that uses slicing software to plan the path of the established three-dimensional digital model, and then uses powder, wire, liquid and other materials to stack layer by layer to complete the manufacturing of the three-dimensional solid model. Compared with traditional processing methods, additive manufacturing technology breaks the limitations of complex shapes and structures, realizes the liberalization of design and manufacturing, and brings revolutionary progress to the manufacturing industry. With the advancement of Industry 4.0 and intelligent manufacturing, additive manufacturing technology has shown higher flexibility and efficiency in the design and manufacturing process. It not only greatly simplifies the manufacturing process, but also significantly improves material utilization and production speed, thus showing its unique advantages in cost savings and time reduction. The development and application of this technology heralds the future trend of the manufacturing industry and provides strong support for innovative product design and rapid response to market changes.

[0004] With the increasingly stringent requirements for material performance in industrial applications, especially for key components such as aerospace engine blades, automobile brake discs, and wind turbine blades, single metal materials can no longer meet these high standards. Carbon fiber, with its excellent light weight, high strength, temperature resistance and corrosion resistance, has shown wide application potential in many fields such as aerospace, sports equipment, automobile manufacturing, and wind power generation. However, the high production cost, large brittleness and customization requirements of carbon fiber limit its price competitiveness in the market. In order to overcome these limitations, continuous carbon fiber reinforced metal matrix composites came into being, which combines the excellent mechanical properties of carbon fiber with the excellent toughness and thermal conductivity of the metal matrix. This composite material not only has the characteristics of light weight, high specific strength and high specific modulus, but also has good corrosion resistance and high temperature resistance, as well as excellent tensile strength. Despite this, the processing and manufacturing process of continuous carbon fiber reinforced metal matrix materials is relatively complex and requires special processes and technologies, which increases the difficulty and cost of production to a certain extent. Continuously optimizing the preparation process of these composite materials and reducing manufacturing costs will be the key to promoting their widespread application in the industrial field. Summary of the invention

[0005] To solve the above technical problems: the present invention provides a processing method for continuous carbon fiber reinforced metal matrix composite materials, which can prepare better continuous carbon fiber reinforced metal matrix composite materials through 3D printing, with low preparation cost and high efficiency.

[0006] To achieve the above-mentioned purpose, the processing method of the continuous carbon fiber reinforced metal matrix composite material described in the present invention needs to rely on the processing and manufacturing system of the continuous carbon fiber reinforced metal matrix composite material, which includes six parts: motion system, control system, monitoring system, heating system, wire supply system and gas supply system; the motion system is a manipulator, and its movement is controlled by a motion control card; the control system includes a host computer, a temperature controller, an air pressure controller, and a motion control card; the monitoring system includes a thermocouple, a pressure sensor, and a high-speed camera; the heating system includes a crucible, a coating head, an electromagnetic coil, a crucible cover, a welding gun, and a resistance wire; the wire supply system includes a wire guide tube, a wire guide wheel, a carbon fiber wire disc, and a steering gear cutter; the gas supply system includes an argon gas bottle, a high-frequency electromagnetic valve, a shunt pipe, and a guide pipe;

[0007] The crucible, coating head, welding gun, steering gear cutter, and high-speed camera are all connected to the manipulator through a fixture, and their movements are controlled by a motion control card. The temperature controller, air pressure controller, motion control card, high-speed camera, steering gear cutter, and welding gun are all controlled by a host computer. The upper end of the coating head is connected to the bottom outlet of the crucible, and the coating head faces the substrate. The high-speed camera, steering gear cutter, and welding gun are respectively located around the coating head. The welding gun and the high-speed camera face the substrate. The steering gear cutter is flush with and can contact the bottom of the coating head. An electromagnetic coil is wound on the outer wall of the crucible, and a resistance wire is wound on the outer side of the coating head. The electromagnetic coil and the resistance wire are connected to a power supply and are controlled by a temperature controller. A thermocouple is arranged inside the crucible. A crucible cover is arranged at the top opening of the crucible. The wire guide tube is connected to the crucible cover by a thread and is located in the center of the crucible and the coating head. The wire guide wheel and the carbon fiber wire reel are located above the crucible cover. The carbon fiber on the carbon fiber wire reel flows out of the coating head with the molten metal through the wire guide wheel and the wire guide tube.

[0008] The gas supply system is divided into two parts: a control gas system and a protective gas system, which are controlled by a gas pressure controller and a high-frequency solenoid valve. In the control gas system, the argon gas cylinder is connected to the crucible through the third high-frequency solenoid valve and the first high-frequency solenoid valve in turn; in the protective gas system, the argon gas cylinder is connected to the shunt pipe through the third high-frequency solenoid valve and the second high-frequency solenoid valve in turn, the shunt pipe is fixed to the lower part of the crucible through a threaded connection, and the guide pipe is fixed to the outside of the shunt pipe through a threaded connection. The inside of the shunt pipe has a spiral airway, and continuous and uniform small holes are arranged on the airway. Argon gas enters from the inlet of the shunt pipe and flows out from the small holes. The outflowing gas passes through the guide pipe to form a surrounding gas wall around the coating head;

[0009] The coating head is wound with a resistance wire on the outside, and the coating head and the resistance wire are located in the center of the shunt tube and the guide tube. The length of the guide tube is 20 mm longer than that of the shunt tube, and the lower end of the guide tube is 2-5 mm higher than the lower end of the coating head.

[0010] The carbon fiber filament reel and the guide wire wheel are fixed above the crucible through bearings and clamps, the guide wire tube is connected to the crucible cover through threads, and the axis of the guide wire tube coincides with the axis of the flow channel of the coating head, and the distance between the lower end of the guide wire and the lower end of the coating head is 1 / 2 to 1 / 3 of the length of the coating head;

[0011] The input end of the host computer is connected to the output end of the high-speed camera, the output end of the host computer is connected to the input end of the air pressure controller, and the output end of the host computer is connected to the input end of the temperature controller;

[0012] The output end of the thermocouple is connected to the input end of the temperature controller. When in use, a metal raw material is added to the crucible, the metal raw material is heated to a molten state by an electromagnetic coil, and the temperature information of the metal raw material in the molten state is detected by a thermocouple temperature sensor;

[0013] The output end of the pressure sensor is connected to the input end of the air pressure controller, and the output end of the pressure sensor is connected to the high-frequency solenoid valve. During use, the pressure sensor detects the gas pressure in the crucible, and transmits the gas pressure information in the crucible to the air pressure controller and the host computer. The air pressure controller controls the high-frequency solenoid valve, thereby controlling the flow rate of the molten metal flowing out of the coating head;

[0014] The input end of the servo cutter is connected to the output end of the host computer. When discontinuous processing is performed or processing is completed, the host computer controls the servo cutter to cut the carbon fiber filaments at the coating head.

[0015] The crucible, wire guide tube and coating head are all made of graphite. The diameter of the wire guide tube is 1mm, and the diameter of the flow channel in the coating head is 2-4mm.

[0016] The welding gun and the servo cutter are located on both sides of the coating head. The horizontal distance between the welding gun and the center line of the coating head is 5-10mm, the horizontal distance between the servo cutter and the center line of the coating head is 25mm, and the length of the servo cutter blade is 35mm.

[0017] The horizontal distance between the high-speed camera and the center line of the coating head is 200 mm.

[0018] The processing method of the continuous carbon fiber reinforced metal matrix composite material of the present invention comprises the following steps:

[0019] 1. Draw the 3D model of the workpiece to be manufactured, and then input the 3D model of the workpiece to be manufactured into the host computer;

[0020] 2. The carbon fiber filaments are passed from the carbon fiber filament reel through the guide wire wheel into the guide wire tube and out of the coating head, and the metal raw materials are added into the crucible. The upper computer controls the electromagnetic coil and the resistance wire through the temperature controller to heat the metal raw materials in the crucible, so that the metal raw materials in the crucible are heated to a molten state;

[0021] 3. The high-frequency solenoid valve of the protective gas system is opened, and the argon gas passes through the diverter pipe and the guide pipe in turn, forming a gas wall around the coating head to protect the molten metal from oxidation;

[0022] 4. The host computer controls the welding gun to form a micro-molten pool on the substrate through the welding gun. At the same time, the high-frequency solenoid valve of the gas system is controlled to open, and the molten metal flows out from the coating head. The carbon fiber filaments will flow out together with the molten metal due to the adhesion of the metal and fall into the micro-molten pool;

[0023] 5. The host computer controls the movement of the robot through the motion control card according to the three-dimensional model of the workpiece to be manufactured, so as to coat the required workpiece on the substrate. During the whole process, the host computer monitors the entire processing process through a high-speed camera;

[0024] 6. After the discontinuous processing is performed and the processing is completed, the upper computer controls the steering gear cutter to cut the carbon fiber filaments at the coating head. The present invention has the following beneficial effects:

[0025] In the specific operation of the processing method of the continuous carbon fiber reinforced metal matrix composite material described in the present invention, resistance wire heating is used at the coating head, which is conducive to better outflow of aluminum alloy; in the process of the flow of molten metal, the carbon fiber filaments will be driven to flow out at the same time due to the effect of adhesion, and the existence of the wire guide tube is conducive to ensuring the moving direction of the carbon fiber filaments and reducing unnecessary friction; at the same time, the design of the shunt pipe and the guide pipe of the present invention will make the argon gas spray out in a laminar state, and after the argon gas passes through the shunt pipe and the guide pipe, it will form a uniform and stable surrounding air wall in the coating head area; the existence of the surrounding air wall can protect the metal from being oxidized on the one hand, and on the other hand, the faster air flow speed is conducive to promoting metal solidification and controlling the morphology; through the steering gear cutter, the disconnection of the carbon fiber filaments at a specific position and the discontinuous processing of the workpiece can be realized, saving carbon fiber materials and reducing the preparation cost; in addition, the existence of the high-speed camera can monitor the quality of the additive in real time, so that the control system can adjust the parameters in time, thereby effectively improving the quality of the continuous carbon fiber reinforced metal matrix composite workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the shunt pipe;

[0027] Figure 2 is a schematic diagram of the structure of the guide tube;

[0028] Figure 3 This is a schematic diagram of the installation of the shunt pipe and the guide pipe;

[0029] Figure 41 is a schematic diagram of the structure of the processing and manufacturing system of the present invention, wherein 1 is a motion control card, 2 is a host computer, 3 is a temperature controller, 4 is an air pressure controller, 5 is a crucible cover, 6 is a thermocouple, 7 is a pressure sensor, 8 is a wire guide wheel, 9 is a carbon fiber wire reel, 10 is a wire guide tube, 11 is a first high-frequency solenoid valve, 12 is an electromagnetic coil, 13 is a crucible, 14 is a second high-frequency solenoid valve, 15 is a third high-frequency solenoid valve, 16 is an argon gas bottle, 17 is a welding gun, 18 is a shunt pipe, 19 is a resistance wire, 20 is a coating head, 21 is a substrate, 22 is a guide pipe, 23 is a steering gear cutter, and 24 is a high-speed camera. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0031] refer to Figure 1 , Figure 3 and Figure 4 The shunt pipe 18 is fixed to the lower part of the crucible 13 by threaded connection, and the guide pipe 22 is fixed to the outside of the shunt pipe 18 by threaded connection. The inside of the shunt pipe 18 has a spiral gas channel, and continuous and uniform small holes are arranged on the gas channel. Argon gas enters from the inlet of the shunt pipe 18 and flows out from the small holes. The outflowing gas passes through the guide pipe 22 to form a surrounding gas wall around the coating head 20;

[0032] refer to Figure 4 The processing method of the continuous carbon fiber reinforced metal matrix composite material described in the present invention needs to rely on the processing and manufacturing system of the continuous carbon fiber reinforced metal matrix composite material, which includes six major parts: a motion system, a control system, a monitoring system, a heating system, a wire supply system and a gas supply system; the motion system is a manipulator, and its movement is controlled by a motion control card 1; the control system includes a host computer 2, a temperature controller 3, an air pressure controller 4, and a motion control card 1; the monitoring system includes a thermocouple 6, a pressure sensor 7, and a high-speed camera 24; the heating system includes a crucible 13, a coating head 20, an electromagnetic coil 12, a crucible cover 5, a welding gun 17, and a resistance wire 19; the wire supply system includes a wire guide tube 10, a wire guide wheel 8, a carbon fiber wire reel 9, and a steering gear cutter 23; the gas supply system includes an argon gas bottle 16, a first high-frequency solenoid valve 11, a second high-frequency solenoid valve 14, a third high-frequency solenoid valve 15, a shunt pipe 18, and a guide pipe 22.

[0033] The crucible 13, coating head 20, welding gun 17, steering gear cutter 23, and high-speed camera 24 are all connected to the manipulator through a fixture, and their movements are controlled by the motion control card 1. The temperature controller 3, the air pressure controller 4, the motion control card 1, the high-speed camera 24, the steering gear cutter 23, and the welding gun 17 are all controlled by the host computer 2. The upper end of the coating head 20 is connected to the bottom outlet of the crucible 13, the coating head 20 faces the substrate 21, the high-speed camera 24, the steering gear cutter 23 and the welding gun 17 are respectively located around the coating head 20, the welding gun 17 and the high-speed camera 24 face the substrate 21, and the steering gear cutter 23 It is flush with and in contact with the bottom of the coating head 20. An electromagnetic coil 12 is wound on the outer wall of the crucible 13. A resistance wire 19 is wound on the outer side of the coating head 20. The electromagnetic coil 12 and the resistance wire 19 are connected to a power source and controlled by a temperature controller 3. A thermocouple 6 is arranged inside the crucible 13. A crucible cover 5 is arranged at the top opening of the crucible 13. A wire guide tube 10 is connected to the crucible cover 5 by threads and is located at the center of the crucible 13 and the coating head 20. A wire guide wheel 8 and a carbon fiber wire reel 9 are located above the crucible cover 5. The carbon fibers on the carbon fiber reel 9 flow out of the coating head 20 with the molten metal through the wire guide wheel 8 and the wire guide tube 10.

[0034] The coating head 20 is wound with a resistance wire 19, and the coating head 20 and the resistance wire 19 are located at the center of the shunt tube 18 and the guide tube 22. The length of the guide tube 22 is 20 mm longer than the length of the shunt tube 18, and the lower end of the guide tube 22 is 2-5 mm higher than the lower end of the coating head 20.

[0035] The carbon fiber filament disc 9 and the guide wire wheel 8 are fixed above the crucible 13 by bearings and clamps, the guide wire tube 10 is connected to the crucible cover 5 by threads, and the axis of the guide wire tube 10 coincides with the axis of the flow channel of the coating head 20, and the distance between the lower end of the guide wire and the lower end of the coating head 20 is 1 / 2 to 1 / 3 of the length of the coating head 20;

[0036] The crucible 13, the wire guide tube 10, and the coating head 20 are all made of graphite. The diameter of the wire guide tube 10 is 1 mm, and the diameter of the flow channel in the coating head 20 is 2-4 mm.

[0037] The welding gun 17 and the steering gear cutter 23 are located on both sides of the coating head 20. The horizontal distance between the welding gun 17 and the center line of the coating head 20 is 5-10 mm, the horizontal distance between the steering gear cutter 23 and the center line of the coating head 20 is 25 mm, the blade length of the steering gear cutter 23 is 35 mm, and the steering gear shaft can rotate at an angle of 120°;

[0038] The horizontal distance between the high-speed camera 24 and the center line of the coating head 20 is 200 mm;

[0039] The processing method of the continuous carbon fiber reinforced metal matrix composite material of the present invention comprises the following steps:

[0040] 1. Draw a three-dimensional model of the workpiece to be manufactured, and then input the three-dimensional model of the workpiece to be manufactured into the host computer 2;

[0041] 2. The carbon fiber filaments are passed from the carbon fiber filament reel 9 through the guide wire wheel 8 into the guide wire tube 10 and out of the coating head 20, and the metal raw materials are added into the crucible 13. The upper computer 2 controls the electromagnetic coil 12 and the resistance wire 19 through the temperature controller 3 to heat the metal raw materials in the crucible 13, so that the metal raw materials in the crucible 13 are heated to a molten state;

[0042] 3. The high-frequency electromagnetic valve of the protective gas system is opened, and the argon gas passes through the diverter pipe 18 and the guide pipe 22 successively, and forms a surrounding gas wall around the coating head 20 to protect the molten metal from oxidation;

[0043] 4. The host computer 2 controls the welding gun 17 to work, and forms a micro-molten pool on the substrate 21 through the welding gun 17. At the same time, the high-frequency solenoid valve of the gas system is controlled to open, and the molten metal flows out from the coating head 20. The carbon fiber filaments will flow out together with the molten metal due to the adhesion of the metal and fall into the micro-molten pool;

[0044] 5. The host computer 2 controls the movement of the manipulator through the motion control card 1 according to the three-dimensional model of the workpiece to be manufactured, so as to coat the required workpiece on the substrate 21. During the whole process, the host computer 2 monitors the entire processing process through the high-speed camera 24;

[0045] 6. After the discontinuous processing is performed and the processing is completed, the host computer 2 controls the steering gear cutter 23 to cut the carbon fiber filaments at the coating head 20.

[0046] The input end of the host computer 2 is connected to the output end of the high-speed camera 24, the output end of the host computer 2 is connected to the input end of the air pressure controller 4, and the output end of the host computer 2 is connected to the input end of the temperature controller 3. The morphology of the entire coating process can be monitored through the high-speed camera 24, the flow rate can be monitored through the air pressure controller 4, and the temperature can be monitored through the temperature controller 3.

[0047] The output end of the thermocouple 6 is connected to the input end of the temperature controller 3. When in use, a metal raw material is added to the crucible 13, the metal raw material is heated to a molten state by the electromagnetic coil 12, and the temperature information of the metal raw material in the molten state is detected by the thermocouple 6 temperature sensor;

[0048] The temperature information of the metal in the crucible 13 is detected by the thermocouple 6, and the temperature information in the crucible 13 is sent to the host computer 2. The host computer 2 adjusts the power of the electromagnetic coil 12 and the resistance wire 19 in time according to the temperature information to ensure that the actual temperature information is consistent with the preset temperature information;

[0049] The pressure information of the gas in the crucible 13 is detected by the pressure sensor 7, and the pressure information of the gas in the crucible 13 is sent to the upper computer 2. The upper computer 2 controls the air pressure controller 4 according to the preset flow rate of the metal in the molten state, and then controls the first high-frequency solenoid valve 11 and the third high-frequency solenoid valve 15 to adjust the pressure of the gas in the crucible 13, thereby controlling the flow rate of the metal raw material in the molten state flowing out of the coating head 20.

[0050] The third high-frequency solenoid valve 15 is controlled to open by the air pressure controller 4, and the argon gas in the argon gas bottle 16 passes through the third high-frequency solenoid valve 15 and the second high-frequency solenoid valve 14 successively through the shunt pipe 18 and the guide pipe 22, and finally flows out near the coating head 20 to form a surrounding gas wall. After passing through the shunt pipe 18, the argon gas is evenly sprayed out in a laminar flow, and then passes through the guide pipe 22 to make the gas wall more uniform and stable and easier to control. On the one hand, the surrounding gas wall protects the molten metal and prevents the oxidation of the aluminum alloy; on the other hand, the faster gas flow rate is conducive to the rapid solidification of the metal, which can better control the morphology of the formed part.

[0051] A high-frequency current is passed through the electromagnetic coil 12 through a power supply, and the aluminum alloy raw material is heated and melted under the principle of electromagnetic induction heating.

[0052] The resistance wire 19 reheats the lower part of the coating head 20, which is more conducive to the outflow of the aluminum alloy.

[0053] The movement of the carbon fiber filaments is driven by the adhesion between the molten metal and the carbon fiber filaments. The metal drives the movement of the carbon fiber filaments and the rotation of the carbon fiber filament disk 9 during the flow process. The guide wire wheel 8 plays the role of a fixed pulley to change the movement direction of the carbon fiber filaments.

[0054] The input end of the servo cutter 23 is connected to the output end of the host computer 2. The servo cutter 23 cuts the carbon fiber filaments by rotating the servo shaft, thereby realizing discontinuous printing of metal.

Claims

1. A method for processing a continuous carbon fiber reinforced metal matrix composite material, characterized in that: A processing and manufacturing system based on continuous carbon fiber reinforced metal matrix composite material, the system comprises a motion system, a control system, a monitoring system, a heating system, a wire supply system, an air supply system and a substrate (21); the motion system is a manipulator; the control system comprises a host computer (2), a temperature controller (3), an air pressure controller (4), and a motion control card (1); the monitoring system comprises a thermocouple (6), a pressure sensor (7), and a high-speed camera (24); the heating system comprises a crucible (13), a coating head (20), an electromagnetic coil (12), a crucible cover (5), a welding gun (17), and a resistance wire (19); the wire supply system comprises a wire guide tube (10), a wire guide wheel (8), a carbon fiber wire reel (9), and a steering gear cutter (23); the air supply system comprises a control air system and a protective air system; and the following steps are included: S1. Draw a three-dimensional model of the workpiece to be manufactured, and then input the three-dimensional model of the workpiece to be manufactured into the host computer (2); S2. The carbon fiber filaments are passed from the carbon fiber filament reel (9) through the guide wire wheel (8) into the guide wire tube (10) and out of the coating head (20), and the metal raw material is added into the crucible (13). The upper computer (2) controls the electromagnetic coil (12) and the resistance wire (19) through the temperature controller (3) to heat the metal raw material in the crucible (13), so that the metal raw material in the crucible (13) is heated to a molten state; S3. The high-frequency electromagnetic valve of the protective gas system is opened, and the argon gas passes through the shunt pipe (18) and the guide pipe (22) successively, and then forms a gas wall around the coating head (20) to protect the molten metal from oxidation; S4. The host computer (2) controls the welding gun (17) to work, and forms a micro-molten pool on the substrate (21) through the welding gun (17). At the same time, the high-frequency electromagnetic valve of the gas system is controlled to open, and the molten metal flows out from the coating head (20). The carbon fiber filaments will flow out together with the molten metal due to the adhesion of the metal and fall into the micro-molten pool; S5. The host computer (2) controls the movement of the manipulator through the motion control card (1) according to the three-dimensional model of the workpiece to be manufactured, so as to coat the desired workpiece on the substrate (21). During the whole process, the host computer (2) monitors the entire processing process through a high-speed camera (24); S6. After the discontinuous processing is performed and the processing is completed, the upper computer (2) controls the steering gear cutter (23) to cut the carbon fiber filaments at the coating head (20).

2. The method for processing a continuous carbon fiber reinforced metal matrix composite material according to claim 1, characterized in that: The wire supply system comprises a wire guide tube (10), a wire guide wheel (8), a carbon fiber wire reel (9), and a steering gear cutter (23); the carbon fiber wire reel (9) and the wire guide wheel (8) are both fixed above the crucible (13) through bearings and clamps, the wire guide tube (10) is fixed on the crucible cover (5) through a threaded connection, the axis of the wire guide tube (10) coincides with the axis of the flow channel of the coating head (20), and the distance between the lower end of the wire guide tube (10) and the lower end of the coating head (20) is 1 / 2 to 1 / 3 of the length of the coating head (20).

3. The method for processing a continuous carbon fiber reinforced metal matrix composite material according to claim 1, characterized in that: The protective gas system comprises an argon gas bottle (16), a third high-frequency electromagnetic valve (15), a second high-frequency electromagnetic valve (14), a shunt pipe (18), and a flow guide pipe (22); in the protective gas system, the argon gas bottle (16) is connected to the shunt pipe (18) through the third high-frequency electromagnetic valve (15) and the second high-frequency electromagnetic valve (14) in sequence, the shunt pipe (18) is fixed to the lower part of the crucible (13) through a threaded connection, and the flow guide pipe (22) is fixed to the outside of the shunt pipe (18) through a threaded connection.

4. The method for processing a continuous carbon fiber reinforced metal matrix composite material according to claim 3, characterized in that: The shunt pipe (18) has a spiral cavity airway inside, and continuous and uniform small holes are arranged on the airway. The upper inner ring of the shunt pipe (18) has an internal thread, and the upper outer ring has an external thread.

5. The method for processing a continuous carbon fiber reinforced metal matrix composite material according to claim 3, characterized in that: The guide tube (22) is cylindrical in shape, the inner side of the upper portion of the guide tube (22) is provided with an internal thread, the outlet of the guide tube (22) is a convergent structure and a small hole is opened on one side of the guide tube (22).

6. The method for processing a continuous carbon fiber reinforced metal matrix composite material according to claim 1, characterized in that: A resistance wire (19) is wound around the outside of the coating head (20), and the coating head (20) and the resistance wire (19) are located between the shunt tube (18) and the guide tube (22).

7. The method for processing a continuous carbon fiber reinforced metal matrix composite material according to claim 2, characterized in that: The steering gear cutter (23) is composed of a steering gear shaft and a blade, and the blade of the steering gear cutter (23) is flush with the lower end of the coating head (20).

8. The method for processing a continuous carbon fiber reinforced metal matrix composite material according to claim 1, characterized in that: The monitoring system comprises a host computer (2), a high-speed camera (24), a pressure sensor (7), and a thermocouple (6); the input end of the host computer (2) is connected to the output end of the high-speed camera (24), the output end of the host computer (2) is connected to the input end of the air pressure controller (4), and the output end of the host computer (2) is connected to the input end of the temperature controller (3).

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