Titanium-based metal composite and its melting processing technology

Abstract

This invention belongs to the technical field of detection devices, specifically a titanium-based metal composite material and its smelting and processing technology. The process steps include: Step 1: Weighing and mixing sponge titanium, titanium alloy element powder and reinforcing phase precursor powder according to the specified ratio, and performing dehydration and degassing treatment under vacuum drying conditions to obtain a uniformly mixed raw material powder; After electrode detection, the electric sliding device drives the first upper cover to open, while the second upper cover remains closed. The electric sliding device sends the motor into the furnace body through the electrode hanging rod and electrode clamp. The side wall and bottom of the detection cover are hinged to each other by torsion springs, so that the electrode hanging rod drives the electrode to squeeze the bottom of the detection cover and flip it over. The electrode passes over the first upper cover and enters the furnace body, while the detection cover is blocked at the top by the first upper cover, realizing the automatic separation of the electrode and the detection cover. This prevents the detection cover from carrying the sensor or dust into the furnace body, maintains a good smelting environment in the furnace body, and improves the smelting quality of the material.

Description

Technical Field

[0001] This invention belongs to the field of detection device technology, specifically a titanium-based metal composite material and its smelting and processing technology. Background Technology

[0002] Titanium-based metal composites are made from titanium or titanium alloys and have irreplaceable application value in high-end fields such as aerospace, medical, and energy and chemical industries. Vacuum consumable arc melting, as the mainstream and mature process for industrial casting of titanium and titanium-based metal composite ingots, has become the most widely used melting method in the industry due to its advantages such as high vacuum environment, no refractory material pollution, high ingot density, and suitability for large-size ingot production. The core process of vacuum consumable arc melting includes key steps such as raw material pretreatment, consumable electrode preparation, electrode welding, hoisting and loading into the furnace, vacuum melting, ingot cooling, and unloading. Among these, the quality of consumable electrode preparation, the cleanliness control during furnace loading, and the stability of the melting process directly determine the final performance of titanium-based metal composite ingots.

[0003] However, in practical applications of the existing vacuum arc melting process, during the electrode hoisting and loading process, if the welded long electrode is exposed to the atmospheric environment for too long, the temperature and humidity of the workshop environment are not properly controlled, or the hoisting tools are not clean enough, the electrode surface is very likely to oxidize, absorb hydrogen and nitrogen, and form an oxide film and surface impurities. After such oxide layers and impurities enter the molten pool with the electrode, they will cause the oxygen, nitrogen and hydrogen content of the ingot to exceed the standard, resulting in defects such as porosity, inclusions and loose structure. In severe cases, it will cause the ingot to crack or be scrapped, resulting in unstable ingot quality and low pass rate, which makes it difficult to meet the high performance and high consistency requirements of titanium-based metal composite materials in high-end fields. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a titanium-based metal composite material and its smelting and processing technology.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: This invention proposes a titanium-based metal composite material and its smelting and processing technology, the process steps of which include:

[0006] Step 1: Weigh and mix sponge titanium, titanium alloy element powder and reinforcing phase precursor powder according to the specified ratio, and dehydrate and degas under vacuum drying conditions to obtain uniformly mixed raw material powder.

[0007] Step 2: Press the mixed raw material powder into a dense cylindrical consumable electrode under high pressure, and smooth the electrode end face to ensure electrode coaxiality and conductivity.

[0008] Step 3: Use the furnace body feeding device to load the consumable electrode into the vacuum consumable arc melting furnace, then evacuate the furnace chamber to a high vacuum and ignite the arc. Complete one melting under a stable arc and controllable melting rate to obtain a preliminary ingot.

[0009] Step 4: After the surface of the first-melting ingot is peeled off, it is used as a new consumable electrode for secondary or multiple vacuum consumable arc remelting. Through stable control of the molten pool and rapid solidification by water cooling, a titanium-based metal composite material ingot with uniform composition and dense structure is obtained.

[0010] Step 5: Cool the final ingot, perform surface treatment, non-destructive testing and homogenization heat treatment to eliminate internal porosity and compositional segregation.

[0011] Preferably, the furnace feeding device in step 3 includes:

[0012] The No. 1 top cover is slidably connected to the top of the furnace body and is located at the bottom of the furnace body feeding device. The No. 2 top cover is slidably connected to one side of the furnace body feeding device. The No. 1 top cover and the No. 2 top cover are respectively connected to the electric sliding device in the furnace body. The furnace body feeding device is equipped with an electrode hanging rod. The top of the electrode hanging rod is connected to the drive mechanism in the furnace body feeding device, and the bottom is equipped with an electrode clamp for holding the electrode.

[0013] The detection cover is installed on the side of adjacent electrode clamps that are far apart from each other. The detection cover and the electrode clamps are slidably connected by springs. The inner wall of the detection cover has a detection groove, which is spirally arranged. A spiral ring is slidably connected in the detection groove. A return spring is connected to the surface of the spiral ring and the inner wall of the detection groove. The top of the first spiral ring has a slot, and the bottom of the second spiral ring has a locking block hinged by a torsion spring. The bottom of the spiral ring has a pull rope, one end of which is connected to a winding motor inside the detection cover. Detection rods are distributed on the spiral rings. Temperature and humidity sensors are installed on the detection rods, and a displacement sensor is installed between the detection rods and the inner wall of the detection groove. An air jet pipe is installed on the detection rod. Multiple nozzles are distributed on the top, bottom, and one side of the air jet pipe. An air pipe is connected between the air jet pipe and the detection cover. The air pump on the detection cover is connected to the air pump in the furnace body.

[0014] Preferably, a partition plate is slidably connected to one side of the detection rod. The partition plate slides on the detection cover at a position away from the detection rod, with one side of the partition plate close to the electrode and the other side close to the inner wall of the detection cover. Positioning blocks are evenly distributed on the side of the partition plate close to the electrode, with the top and bottom positions of the positioning blocks located at the top and bottom of the electrode, respectively. The side of the positioning blocks away from the electrode is located in the cavity inside the partition plate. The positioning blocks and the partition plate are slidably connected by a spring, and the cavity of the partition plate is connected to the air tube.

[0015] Preferably, a sliding rod is slidably connected to one side of the partition plate via a spring. The end of the sliding rod contacts the inner wall of the detection cover via a ball bearing. A sealing sheet is hinged to the inner wall of the detection cover via a torsion spring. The sealing sheet is used to seal the uniformly opened air extraction holes on the inner wall of the detection cover. One end of the sealing sheet is hinged to one end wall of the air extraction hole. The air extraction hole is connected to the interior of the hollow detection cover. The interior of the detection cover is connected to the air extraction end of the air pump via an air pipe.

[0016] Preferably, the slide bar is provided with a scraper, the scraper is inclined and one side of the scraper contacts the surface of the partition plate.

[0017] Preferably, the side of the scraper away from the partition plate is grid-shaped, and the grid-shaped part of the scraper is curved into an arc shape.

[0018] Preferably, visual detection components are evenly distributed on the inner wall of the detection cover, and the visual detection components face the electrode surface and the partition plate.

[0019] Preferably, a cleaning plate is hinged to one side of the partition plate by a torsion spring, and the cleaning plate is located on one side of the positioning block.

[0020] Preferably, the cleaning sheet has a V-shaped cross-section, and the V-shaped open end of the cleaning sheet contacts the electrode surface.

[0021] A titanium-based metal composite material, wherein the composite material uses titanium or titanium alloy as the matrix and ceramic particles, whiskers or fibers generated in situ or introduced externally as the reinforcing phase.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. The titanium-based metal composite material and its smelting process described in this invention, after electrode detection, the electric sliding device drives the first upper cover to open, while the second upper cover remains closed. The electric sliding device sends the motor into the furnace body through the electrode lifting rod and electrode clamp. The side wall and bottom of the detection cover are hinged to each other by torsion springs, so that the electrode lifting rod drives the electrode to squeeze the bottom of the detection cover and flip it over. The electrode passes over the first upper cover and enters the furnace body, while the detection cover is blocked at the top by the first upper cover, realizing the automatic separation of the electrode and the detection cover. This prevents the detection cover from carrying the sensor or dust into the furnace body, maintains a good smelting environment in the furnace body, and improves the smelting quality of the material.

[0024] 2. In the titanium-based metal composite material and its smelting process described in this invention, when the detection rod descends with the spiral ring, the temperature and humidity sensor and the displacement sensor work synchronously: the former collects the temperature and humidity of the electrode surface, and the latter determines the electrode posture and positioning accuracy through the relative displacement between the detection rod and the electrode. On the one hand, it can determine in real time whether the electrode is too hot and prone to oxidation, or too humid and prone to hydrogen absorption, providing data basis for subsequent purging. On the other hand, it can simultaneously detect whether the electrode is bent, eccentric, or misaligned, and identify the loading positioning error in advance, thereby improving detection efficiency, notifying the staff to adjust in time, and thus improving the material smelting efficiency. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is a flowchart of the steps of the present invention;

[0027] Figure 2 This is a perspective view of the present invention;

[0028] Figure 3 This is a cross-sectional view of the inspection cover from one direction;

[0029] Figure 4 This is a cross-sectional view of the inspection cover from another direction;

[0030] Figure 5 This is a cross-sectional view of the partition;

[0031] Figure 6 This is a structural diagram of the inside of the detection cover from one perspective;

[0032] Figure 7 This is a structural diagram from another perspective of the inside of the detection cover;

[0033] Figure 8 This is a cross-sectional view of the partition from a top-down perspective;

[0034] Figure 9 It is a cross-sectional view of the partition from the bottom.

[0035] In the diagram: Furnace body feeding device 1, No. 1 upper cover 11, No. 2 upper cover 12, electric sliding device 13, electrode hanging rod 14, drive mechanism 15, electrode clamp 16, detection cover 17, detection groove 18, spiral ring 19, slot 2, clamping block 21, pull rope 22, winding motor 23, detection rod 24, jet pipe 25, spray hole 26, partition plate 27, positioning block 28, cavity 29, slide rod 3, sealing plate 31, air extraction hole 32, scraper 33, vision inspection component 34, cleaning plate 35. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1:

[0038] To effectively solve the above problems, see the attached diagram in the instruction manual. Figures 1-9 As shown, a titanium-based metal composite material smelting and processing process includes the following steps:

[0039] Step 1: Weigh and mix sponge titanium, titanium alloy element powder and reinforcing phase precursor powder according to the specified ratio, and dehydrate and degas under vacuum drying conditions to obtain uniformly mixed raw material powder.

[0040] Step 2: Press the mixed raw material powder into a dense cylindrical consumable electrode under high pressure, and smooth the electrode end face to ensure electrode coaxiality and conductivity.

[0041] Step 3: Using the furnace body feeding device 1, the consumable electrode is loaded into the vacuum consumable arc melting furnace. Then, the furnace chamber is evacuated to a high vacuum and the arc is ignited. Under a stable arc and controllable melting rate, one melting is completed to obtain a preliminary ingot.

[0042] Step 4: After the surface of the first-melting ingot is peeled off, it is used as a new consumable electrode for secondary or multiple vacuum consumable arc remelting. Through stable control of the molten pool and rapid solidification by water cooling, a titanium-based metal composite material ingot with uniform composition and dense structure is obtained.

[0043] Step 5: Cool the final ingot, perform surface treatment, non-destructive testing and homogenization heat treatment to eliminate internal porosity and compositional segregation.

[0044] Example 2:

[0045] Based on Embodiment 1, the furnace feeding device 1 in step 3 includes:

[0046] The first top cover 11 is slidably connected to the top of the furnace body and is located at the bottom of the furnace body feeding device 1. The second top cover 12 is slidably connected to one side of the furnace body feeding device 1. The first top cover 11 and the second top cover 12 are respectively connected to the electric sliding device 13 in the furnace body. The furnace body feeding device 1 is equipped with an electrode hanging rod 14. The top of the electrode hanging rod 14 is connected to the drive mechanism 15 in the furnace body feeding device 1, and the bottom is equipped with an electrode clamp 16 for clamping the electrode.

[0047] A detection cover 17 is installed on the side of adjacent electrode clamps 16 that are far apart from each other. The detection cover 17 and the electrode clamps 16 are slidably connected by a spring. A detection groove 18 is formed on the inner wall of the detection cover 17. The detection groove 18 is spirally arranged. A spiral ring 19 is slidably connected in the detection groove 18. A return spring is connected to the surface of the spiral ring 19 and the inner wall of the detection groove 18. Spiral rings 19 are provided in adjacent detection covers 17. The first spiral ring 19 is horizontally lower than the second spiral ring 19. The top of the first spiral ring 19 is provided with a slot 2. The bottom of the second spiral ring 19 is connected by a torsion spring. A hinged locking block 21 is provided, and adjacent spiral rings 19 are connected through locking slots 2 and locking block 21; a pull rope 22 is provided at the bottom of the spiral ring 19, one end of the pull rope 22 is connected to the winding motor 23 inside the detection cover 17, detection rods 24 are distributed on the spiral ring 19, temperature and humidity sensors are provided on the detection rods 24, and a displacement sensor is provided between the detection rods 24 and the inner wall of the detection groove 18; an air jet pipe 25 is provided on the detection rods 24, and multiple spray holes 26 are distributed on the top, bottom and one side of the air jet pipe 25, and an air pipe is connected between the air jet pipe 25 and the detection cover 17, and the air pump on the detection cover 17 is connected to the air pump in the furnace body;

[0048] The electric sliding device 13 is a conventional drive door closing device, used to drive the opening and closing of the first upper cover 11 and the second upper cover 12 respectively. The drive mechanism 15 is a conventional moving device, which includes a horizontal electric telescopic rod and a vertical electric telescopic rod. The horizontal electric telescopic rod drives the electrode hanging rod 14 to move out and return to the furnace body feeding device 1. The vertical electric telescopic rod drives the electrode hanging rod 14 to lift, grab and install. The drive mechanism 15 drives the electrode clamp 16 to move through the electrode hanging rod 14.

[0049] Specific workflow: When charging the smelting furnace, if the traditional single-cover fully open charging method is used, moisture in the air will condense on the electrode surface, forming pores after melting. However, the electric sliding device 13 drives the first cover 11 to slide and close, and then drives the second cover 12 to open, keeping the furnace body closed. This creates a sealed cavity inside the furnace, providing a sealing condition for subsequent vacuuming and ensuring a high vacuum environment inside the furnace. This avoids the traditional fully open furnace door method, which allows outside air, moisture, and dust to rush into the furnace, preventing electrodes from being damaged during the charging stage. High-temperature oxidation, oxygen absorption, nitrogen absorption, and water vapor adsorption occur, reducing the risk of excessive hydrogen, oxygen, and nitrogen content in ingots from the source and improving the purity of material smelting; the drive mechanism 15 drives the electrode clamp 16 to move closer to the electrode through the electrode hanger 14, and then the electrode clamp 16 moves closer to each other to clamp the electrode. The drive mechanism 15 then drives the electrode clamp 16 to move back into the furnace body feeding device 1 through the electrode hanger 14. The electric sliding device 13 drives the second upper cover 12 to close. At this time, the first upper cover 11 and the second upper cover 12 are in the closed state.

[0050] When the electrode is held by the electrode chuck 16, the electrode chuck 16 drives the detection covers 17 to move closer and merge, enclosing the electrode inside. When the detection covers 17 merge, the spiral detection grooves 18 on the inner walls of the two detection covers 17 merge and connect end to end, forming a complete spiral groove from the top to the bottom of the detection covers 17. When the detection grooves 18 are connected, the spiral rings 19 in the two detection grooves 18 are connected by inserting into the slots 2 through the locking blocks 21. Then, the winding motor 23 is started to wind up the pull rope 22. The pull rope 22 drives the spiral rings 19 to spirally descend along the detection grooves 18. The spiral rings 19 drive the detection rod 24 to spirally descend along the outer surface of the electrode. The detection rod 24 carries a temperature and humidity sensor to detect the temperature and humidity values ​​of the electrode before melting. By moving the detection rod 24 along the electrode surface, the positioning accuracy of the electrode is detected by the displacement sensor. Traditional straight up and down detection has the problems of blind spots on the sides and missed detection at the bottom. The spiral trajectory can cover all areas of the electrode and the upper and lower end faces, increasing the detection coverage and improving the detection accuracy, thereby improving the quality of material melting.

[0051] Furthermore, as the detection rod 24 descends with the spiral ring 19, the temperature and humidity sensor and the displacement sensor work synchronously: the former collects the temperature and humidity of the electrode surface, while the latter determines the electrode posture and positioning accuracy through the relative displacement between the detection rod 24 and the electrode. On the one hand, it can determine in real time whether the electrode is too hot and prone to oxidation, or too humid and prone to hydrogen absorption, providing data for subsequent purging. On the other hand, it can simultaneously detect whether the electrode is bent, eccentric, or misaligned, identifying the loading positioning error in advance, thereby improving detection efficiency, notifying staff to make adjustments in a timely manner, and thus improving the material melting efficiency.

[0052] Furthermore, after the detection rod 24 descends to its limit position, the winding motor 23 releases the pull rope 22, and the spiral ring 19 spirals upward and resets through the return spring, completing the lifting and lowering of the detection rod 24. The detection rod 24 drives the jet pipe 25 to spirally rise and fall over the outer circumferential surface of the electrode. The conventionally configured air pump in the furnace delivers gas with suitable temperature and humidity into the jet pipe 25 through the air pipe. The jet pipe 25 sprays inert gas through multiple sets of nozzles 26 on the top, bottom, and sides, realizing spiral lifting and circumferential purging. Compared with straight up and down purging, the axial airflow continuously scours the electrode surface from both top and bottom directions, quickly removing residual heat from electrode welding and ambient radiant heat, preventing the electrode from undergoing high-temperature oxidation, oxygen absorption, and nitrogen absorption before loading into the furnace due to excessive temperature. The axial powerful dehumidification dries the water vapor adsorbed on the electrode surface and blows away loose oxide scale and other impurities, preventing water vapor and impurities from entering the furnace for melting with the electrode. The jet pipe 25 purifies section by section, ensuring that the temperature and humidity of the electrode are uniform from top to bottom, avoiding local high temperature and local dampness problems.

[0053] In addition, the airflow from the side nozzles 26 is perpendicular to the electrode radius and ejected along the circumferential tangent direction, forming a rotating, enveloping airflow under spiral motion. This, combined with the spiral lifting motion, prevents localized leakage. The rotating airflow generates circumferential shear force.

[0054] The thin oxide film, oil stains, and adsorption layer on the electrode surface are physically peeled off, and the axial airflow is used to achieve deep cleaning of the electrode surface, thereby improving the cleanliness of the electrode and thus improving the purity of the material smelting.

[0055] After electrode testing, the electric sliding device 13 drives the first upper cover 11 to open, while the second upper cover 12 remains closed. The electric sliding device 13 sends the motor into the furnace body through the electrode lifting rod 14 and the electrode clamp 16. The side wall and bottom of the detection cover 17 are hinged together by a torsion spring, so that the electrode lifting rod 14 drives the electrode to squeeze the bottom of the detection cover 17 and flip it over. The electrode passes over the first upper cover 11 and enters the furnace body, while the detection cover 17 is blocked at the top by the first upper cover 11, realizing the automatic separation of the electrode and the detection cover 17. This prevents the detection cover 17 from carrying the sensor or dust into the furnace body, maintaining a good melting environment in the furnace body and improving the quality of material melting. An electric push rod can also be installed to connect the detection cover 17 and the electrode clamp 16. When testing is required, the detection cover 17 is closed. When feeding after testing, the electric push rod actively drives the detection cover 17 to separate and expose the electrode without affecting the installation of the electrode.

[0056] Furthermore, the detection hood 17 can actively reduce the space where the electrode is located, and the dry inert gas can fill the entire cavity in a short time, quickly expelling the internal humid and hot air, so that the temperature and humidity of the electrode surface can quickly reach the process requirements, improving the electrode adjustment efficiency; moreover, the airflow in the narrow space cannot diffuse at will, and all of it is concentrated on the electrode surface, and the heat and moisture are carried away, making the temperature and humidity control more uniform and stable, improving the detection accuracy; in addition, the narrow space, combined with the spiral lifting and blowing, forms a forced circulation of airflow in the hood, and the contaminants are quickly carried away from the electrode surface and discharged from the furnace through the exhaust pipe on the detection hood 17, without secondary adhesion or local residue.

[0057] Example 3:

[0058] Based on Embodiment 2, a partition plate 27 is slidably connected to one side of the detection rod 24. The partition plate 27 slides on the detection cover 17 at a position away from the detection rod 24. One side of the partition plate 27 is close to the electrode, and the other side is close to the inner wall of the detection cover 17. Positioning blocks 28 are evenly distributed on the side of the partition plate 27 close to the electrode. The top and bottom positions of the positioning blocks 28 are located at the top and bottom of the electrode, respectively. The side of the positioning blocks 28 away from the electrode is located in the cavity 29 inside the partition plate 27. The positioning blocks 28 and the partition plate 27 are slidably connected by a spring. The cavity 29 of the partition plate 27 is connected to the air tube.

[0059] The partition plate 27 is slidably connected to a slide rod 3 by a spring on one side. The end of the slide rod 3 contacts the inner wall of the detection cover 17 through a ball bearing. A sealing plate 31 is hinged to the inner wall of the detection cover 17 by a torsion spring. The sealing plate 31 is used to seal the air extraction holes 32 that are evenly opened on the inner wall of the detection cover 17. One end of the sealing plate 31 is hinged to one end wall of the air extraction hole 32. The air extraction hole 32 is connected to the interior of the hollow detection cover 17. The interior of the detection cover 17 is connected to the air extraction end of the air pump through an air pipe.

[0060] The slide bar 3 is provided with a scraper 33, which is inclined and one side of the scraper 33 contacts the surface of the partition plate 27.

[0061] The side of the scraper 33 away from the partition plate 27 is grid-shaped, and the grid-shaped part of the scraper 33 is bent into an arc shape;

[0062] Specific workflow: The detection cover 17, via the detection rod 24, moves the partition plate 27 closer to the outer surface of the electrode, and the partition plate 27 moves the positioning block 28 closer to the electrode. When positioning accuracy needs to be checked, air is pumped into the partition plate 27 through the air tube. The positioning block 28, under the influence of air pressure, resists the spring and extends to contact the electrode. The positioning block 28 and the electrode can make contact through ball bearings to reduce the friction generated by the contact. If the electrode is misaligned, the positioning block 28 is squeezed by the misaligned side of the electrode, causing the positioning block 28 to move the detection rod 24 closer to the displacement sensor. The displacement sensor provides feedback on the positioning deviation of the electrode. Then, the electrode chuck 16 releases the electrode and re-clamps it, or during clamping, the positioning block 28 is affected by air pressure, and the positioning block... The bottom of the additional positioning block 28 can extend to the bottom of the electrode. When the electrode chuck 16 is loosened, the bottom of the additional positioning block 28 supports the bottom of the electrode. For example, the electrode can be placed on a flat plane formed by the bottoms of multiple positioning blocks 28. If the electrode is slightly loose, the positioning block 28 will move closer to straighten it while checking the positioning accuracy. After the positioning block 28 is clamped or straightened, the loose electrode chuck 16 will be clamped and fixed again, improving the clamping accuracy of the electrode and the installation accuracy of the electrode, thereby improving the melting effect of the material. When the positioning block 28 is not in use, the gas in the cavity 29 in the partition plate 27 flows out, and the positioning block 28 is retracted by the spring, so it will not be in contact with the electrode rotation for a long time and thus will not cause wear.

[0063] Furthermore, the partition plate 27 can also serve as a medium for separating the space on both sides of the electrode. After the circumferential airflow ejected from the jet pipe 25 circles half a circle around the electrode, it is blocked and guided by the partition plate 27, carrying impurities and water vapor on the electrode to flow towards the air extraction hole 32. The partition plate 27 drives the slide rod 3 to move past the sealing plate 31. The slide rod 3 squeezes the sealing plate 31 into the air extraction hole 32 through the extension force of the spring, opening the air extraction hole 32. The mixed gas of water vapor and impurities is discharged from the detection cover 17 through the air extraction hole 32, improving the cleanliness of the detection cover 17 and the electrode.

[0064] Furthermore, when the spiral ring 19 rises and falls, the partition plate 27 is slidably connected to the spiral ring 19, and the partition plate 27 is confined inside the detection cover 17. When the spiral ring 19 rotates, it drives the partition plate 27 to rotate. The partition plate 27 scrapes the inner wall of the detection cover 17 by adding an elastic metal sheet, scraping away the impurities and water droplets attached to the inner wall of the detection cover 17, improving the cleanliness inside the detection cover 17, and preventing the gas flow from rolling up impurities and contaminating the electrode, thereby improving the cleanliness of the electrode and thus improving the smelting purity of the material. At the same time, when the partition plate 27 rotates, it can also guide the airflow, making the airflow carrying water vapor, dust and oxide scale flow in a directional direction, preventing impurities from scattering and rebounding inside the cover and causing secondary adhesion. After the slide bar 3 passes the air extraction hole 32, the sealing plate 31 automatically swings back to its original position by the torsion spring, achieving the sealing effect of the air extraction hole 32. Even when the air volume is too large, the high pressure will squeeze the air extraction hole 32 open, preventing the gas from pressing impurities onto the electrode surface or forcing water into the electrode under high pressure.

[0065] In addition, when the partition plate 27 guides the airflow, the suction port 32 facing the airflow direction is opened by the slide rod 3. For example, when the jet pipe 25 jets from left to right, the suction port 32 on the right side is squeezed open by the slide rod 3, so that the airflow can enter the suction port 32 more smoothly. The gas enters the suction end of the air pump through the air pipe for processing, forming a stable airflow trajectory and improving the adjustment efficiency of the electrode. However, if other suction ports 32 are also opened, the jetted airflow will enter the suction port 32 and be discharged before it touches the electrode or flows through the outer periphery of the electrode, reducing the effect of airflow cleaning and adjustment.

[0066] By setting scraper 33, each time slide rod 3 passes through air extraction hole 32, slide rod 3 squeezes into and out of air extraction hole 32 to achieve reciprocating lateral movement. Slide rod 3 drives scraper 33 to reciprocate lateral movement to scrape the windward side of partition plate 27, scraping the impurities and water vapor adhering to the airflow on partition plate 27 toward air extraction hole 32 and discharge them, thereby improving the cleanliness of partition plate 27 and reducing pollution.

[0067] The principle of scraper 33: The surface of partition plate 27 can be smoothed. When the airflow carrying impurities approaches partition plate 27, the grid-like part of scraper 33 filters the impurities in advance, trapping impurities such as oxide scale removed from the electrodes on the smooth surface of scraper 33. When the airflow flows along the arc-shaped surface of scraper 33, it blows the impurities toward the exhaust port 32, preventing the impurities from falling to the bottom of the detection cover 17 and entering the furnace body during material feeding, thereby improving the purity of material smelting. The arc-shaped curved structure of scraper 33 can smoothly guide the airflow, reduce airflow impact resistance and turbulence, and make the inert gas flow more uniform. This not only improves the speed of temperature and humidity regulation, but also allows the airflow carrying impurities to flow more smoothly toward the exhaust port 32, improving the impurity discharge efficiency.

[0068] Example 4:

[0069] Based on Embodiment 3, visual detection components 34 are evenly distributed on the inner wall of the detection cover 17, and the visual detection components 34 face the electrode surface and the partition plate 27.

[0070] A cleaning plate 35 is hinged to one side of the partition plate 27 by a torsion spring, and the cleaning plate 35 is located on one side of the positioning block 28.

[0071] The cleaning sheet 35 has a V-shaped cross-section, and the V-shaped open end of the cleaning sheet 35 contacts the electrode surface.

[0072] Specific workflow: By distributing visual inspection components 34, including cameras, around the electrode, full-coverage image acquisition can be performed on the electrode's body, end face, and welding area. Real-time identification of oxide scale, loose layer, welding slag, oil stains, bump damage, and moisture marks on the electrode surface can be achieved, enabling early detection and treatment of defects and preventing defective electrodes from being brought into the furnace for melting, which would lead to ingot inclusions, porosity, and substandard performance.

[0073] Furthermore, the visual inspection component 34 is simultaneously aligned with the partition plate 27, enabling real-time monitoring of the surface of the partition plate 27 for residual impurities, water vapor condensation, dust accumulation, and oxide scale adhesion. This allows for a direct assessment of the cleaning effect of the scraper 33 and the airflow purging, ensuring that the partition plate 27 remains in a clean working state. It can also monitor the interior of the inspection cover 17 for loose impurities, detached oxide scale, or other risks of falling. If any abnormality is detected, the machine can be stopped immediately to prevent impurities from entering the furnace with the electrodes during the feeding process. This reduces smelting inclusion defects from the source, improving the cleanliness and yield of titanium-based metal composite ingots.

[0074] If there are impurities such as oxide scale remaining on the electrode surface, air can be injected into the cavity 29 inside the partition plate 27 to drive the positioning block 28 to extend. One side of the positioning block 28 contacts and drives the cleaning plate 35 to swing and contact the electrode surface. When the partition plate 27 drives the cleaning plate 35 to rotate, the residual oxide scale is scraped off and blown onto the scraper 33 by the airflow, thereby improving the cleanliness.

[0075] By setting the cross-section of the cleaning plate 35 to be V-shaped, when the V-shaped side of the cleaning plate 35 contacts the electrode surface, the residual oxide scale passes through the serrated edge formed by the V-shaped side of the cleaning plate 35. Through piercing and shearing, the oxide scale and other impurities are peeled off from the electrode surface. At the same time as removing the oxide scale from the electrode surface, cleaning is carried out along the tangential direction of the electrode surface, achieving the effect of cleaning and protection at the same time.

[0076] Example 5:

[0077] Based on Example 4, a titanium-based metal composite material is provided, wherein the composite material uses titanium or titanium alloy as the matrix and ceramic particles, whiskers or fibers generated in situ or introduced externally as the reinforcing phase.

[0078] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A titanium-based metal composite melting process, characterized by, The process steps include: Step 1: Weigh and mix sponge titanium, titanium alloy element powder and reinforcing phase precursor powder according to the specified ratio, and dehydrate and degas under vacuum drying conditions to obtain uniformly mixed raw material powder. Step 2: Press the mixed raw material powder into a dense cylindrical consumable electrode under high pressure, and smooth the electrode end face to ensure electrode coaxiality and conductivity. Step 3: Use the furnace body feeding device (1) to load the consumable electrode into the vacuum consumable arc melting furnace, then evacuate the furnace chamber to a high vacuum and ignite the arc. Complete one melting under a stable arc and controllable melting rate to obtain a preliminary ingot. Step 4: After the surface of the first-melting ingot is peeled off, it is used as a new consumable electrode for secondary or multiple vacuum consumable arc remelting. Through stable control of the molten pool and rapid solidification by water cooling, a titanium-based metal composite material ingot with uniform composition and dense structure is obtained. Step 5: Cool the final ingot, perform surface treatment, non-destructive testing and homogenization heat treatment to eliminate internal porosity and compositional segregation.

2. The process according to claim 1, wherein: The furnace feeding device (1) in step 3 includes: The first top cover (11) is slidably connected to the top of the furnace body and is located at the bottom of the furnace body feeding device (1). The second top cover (12) is slidably connected to one side of the furnace body feeding device (1). The first top cover (11) and the second top cover (12) are respectively connected to the electric sliding device (13) in the furnace body. The furnace body feeding device (1) is provided with an electrode hanging rod (14). The top of the electrode hanging rod (14) is connected to the drive mechanism (15) in the furnace body feeding device (1), and the bottom is equipped with an electrode clamp (16). A detection cover (17) is installed on the side of adjacent electrode clamps (16) that are far apart from each other. The detection cover (17) and the electrode clamps (16) are slidably connected by a spring. A detection groove (18) is provided on the inner wall of the detection cover (17). The detection groove (18) is spirally arranged. A spiral ring (19) is slidably connected in the detection groove (18). A return spring is connected between the surface of the spiral ring (19) and the inner wall of the detection groove (18). The top of the first spiral ring (19) is provided with a slot (2). The bottom of the second spiral ring (19) is connected by a torsion spring. The spring is hinged with a locking block (21); the bottom of the spiral ring (19) is provided with a pull rope (22), one end of the pull rope (22) is connected to the winding motor (23) inside the detection cover (17), the spiral ring (19) is provided with detection rods (24), and the detection rods (24) are provided with sensors; the detection rods (24) are provided with air jet pipes (25), and multiple spray holes (26) are distributed on the top, bottom and one side of the air jet pipes (25). An air pipe is connected between the air jet pipes (25) and the detection cover (17), and the air pump on the detection cover (17) is connected to the air pump in the furnace body.

3. The process according to claim 2, wherein: A partition plate (27) is slidably connected to one side of the detection rod (24). The partition plate (27) slides on the detection cover (17) at a position away from the detection rod (24). One side of the partition plate (27) is close to the electrode, and the other side is close to the inner wall of the detection cover (17). Positioning blocks (28) are evenly distributed on the side of the partition plate (27) close to the electrode. The top and bottom positions of the positioning blocks (28) are located at the top and bottom of the electrode, respectively. The side of the positioning blocks (28) away from the electrode is located in the cavity (29) inside the partition plate (27). The positioning blocks (28) and the partition plate (27) are slidably connected by a spring. The cavity (29) of the partition plate (27) is connected to the trachea.

4. The process according to claim 3, wherein: The partition plate (27) is slidably connected to a slide rod (3) by a spring on one side. The end of the slide rod (3) contacts the inner wall of the detection cover (17) through a ball bearing. A sealing plate (31) is hinged to the inner wall of the detection cover (17) by a torsion spring. The sealing plate (31) is used to seal the air extraction holes (32) that are evenly opened on the inner wall of the detection cover (17). One end of the sealing plate (31) is hinged to one end wall of the air extraction hole (32). The air extraction hole (32) is connected to the interior of the hollow detection cover (17). The interior of the detection cover (17) is connected to the air extraction end of the air pump through an air pipe.

5. A process for melting and processing titanium based metal composites according to claim 4, characterized in that: The slide bar (3) is provided with a scraper (33), which is inclined and one side of the scraper (33) contacts the surface of the partition plate (27).

6. A process for melting titanium based metal composites according to claim 5, characterized in that: The scraper (33) is grid-shaped on the side away from the partition plate (27), and the grid-shaped part of the scraper (33) is bent into an arc shape.

7. A process for melting and processing titanium based metal composites according to claim 6, characterized in that: The detection cover (17) has visual detection components (34) evenly distributed on its inner wall, and the visual detection components (34) face the electrode surface and the partition plate (27).

8. The process of claim 7, wherein: A cleaning plate (35) is hinged to one side of the partition plate (27) by a torsion spring, and the cleaning plate (35) is located on one side of the positioning block (28).

9. The smelting and processing technology for titanium-based metal composite materials according to claim 8, characterized in that: The cleaning plate (35) has a V-shaped cross section, and the V-shaped open end of the cleaning plate (35) contacts the electrode surface.

10. A titanium-based metal composite material, wherein the titanium-based metal composite material uses the smelting and processing technology according to any one of claims 1-9, characterized in that: The composite material uses titanium or titanium alloy as the matrix and ceramic particles, whiskers or fibers generated in situ or introduced externally as the reinforcing phase.

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