Continuous titanium alloy atomization pulverizing equipment

Abstract

The invention discloses continuous titanium alloy atomization powder making equipment, which belongs to the technical field of powder metallurgy and comprises a feeding mechanism, a preheating unit, a smelting unit, a restraint device and an atomization unit. And the feeding mechanism can be used for continuously conveying the bars. The preheating unit is used for preheating the bars conveyed by the feeding mechanism. The smelting unit is used for smelting the preheated bar to form liquid flow or liquid drops. And the constraining device generates an alternating electromagnetic field to magnetically constrain the liquid flow or the liquid drop. The atomization unit crushes and atomizes liquid flow or liquid drops flowing out of the restraint device, and powder is formed after cooling and solidification. A titanium alloy bar is heated and molten through the preheating unit and the smelting unit, molten titanium falls into the restraint device and then is guided to form liquid flow with the uniform diameter under the restraint effect of a magnetic field, then the liquid flow is broken into fine liquid drops through spraying of high-pressure argon, and the liquid drops are cooled and solidified to obtain the spherical titanium alloy powder.

Description

Technical Field

[0001] The invention belongs to the technical field of powder metallurgy, in particular to continuous titanium alloy atomization powder making equipment. Background Art

[0002] Titanium alloy atomization powder making is a technology that makes titanium alloy materials into fine powder by atomization. It is a process in which molten titanium is impacted by high-speed gas or liquid flow to disperse it into fine droplets, and then solidifies into powder after cooling. Compared with traditional manufacturing methods, atomization powder making technology can significantly improve the utilization rate of materials and help to manufacture parts with excellent performance and complex structure.

[0003] The mainstream atomization powder making of titanium alloy adopts EIGA (bar induction melting gas atomization powder making system) crucible-free melting gas atomization powder making, PA (plasma atomization method) plasma wire feeding atomization powder making and PREP plasma rotating electrode powder making. These technologies cannot achieve continuous production. Among them, EIGA uses titanium alloy bars, which need to be melted and stopped to replace another bar. The production efficiency is extremely low. Each bar has a small tail, which affects the production powder yield. In addition, the gas consumption is 25Nm 3 / h, which requires an expensive argon recovery system. PA has achieved semi-continuous production, but the cost of rolling titanium alloy wire in the early stage is relatively high, and the market price of wire is 1 times that of rod (taking TC4 as an example, 3.2mm wire is 240 yuan / KG, while the price of 70×1000mm diameter rod is only 120 yuan / KG), so it has not been widely promoted in the market. PREP plasma rotating electrode atomization cannot increase the speed to more than 50,000 rpm due to centrifugal power, so the atomized powder is mostly coarse powder, the powder yield is less than 15%, and it cannot be manufactured at low cost.

[0004] The patent with publication number CN108161019A discloses a powder making method of an induction heating and radio frequency plasma combined atomization powder making system, which is to pull the blank into wire and then sequentially transport it to a high-frequency induction heating device for preheating and a radio frequency induction plasma device for melting, and the melted liquid flow or droplets are crushed by atomizing gas and cooled to form spherical powder. Although the device and process can realize continuous processing and powder making, the process cost of pulling the blank into wire is extremely high, and the structural stability of the wire during the pulling process is uncontrollable, and the wire often breaks during the pulling process. Summary of the invention

[0005] The purpose of the present invention is to provide a continuous titanium alloy atomization powder making device to solve the problems raised in the above-mentioned prior art.

[0006] Provide continuous titanium alloy atomization powder making equipment, including:

[0007] A feeding mechanism, wherein the feeding mechanism can continuously convey the rods, and the diameter of the rods is 15 mm to 90 mm;

[0008] A preheating unit, used to preheat the bar material conveyed by the feeding mechanism;

[0009] A melting unit, used to melt the preheated bar material to form liquid streams or droplets;

[0010] A confinement device, wherein the confinement device generates an alternating electromagnetic field to magnetically confine the liquid flow or the liquid droplets;

[0011] The atomizing unit is used to break up the liquid flow or liquid droplets flowing out of the restrainer into atomized form, and form powder after cooling and solidification.

[0012] As a further embodiment of the present invention: the diameter of the rod is 20 mm to 70 mm.

[0013] As a further embodiment of the present invention: the diameter of the rod is 50 mm to 70 mm.

[0014] As a further embodiment of the present invention: in the powder formed after cooling and solidification, the yield rate of 0um-60um finished powder is ≥70%, and the yield rate of 15um-53um finished powder is ≥50%.

[0015] As a further embodiment of the present invention: the magnetic induction intensity of the restraint is 1100G ~ 1500G.

[0016] As a further embodiment of the present invention: the restraint device includes at least two restraint units, and the restraint effect of the multiple restraint units on the diameter reduction of the liquid flow or droplet is gradually enhanced. A coil is arranged in each restraint unit. When an alternating current is passed through the coil, an alternating electromagnetic field is generated inside and around the coil. When the liquid flow flows through the magnetic field, it is cut by the magnetic field to generate an induced electromotive force and then generate an eddy current magnetic field. The eddy current magnetic field has the same direction as the alternating magnetic field to generate a mutual repulsive force, so that the liquid flow is constrained between the coils.

[0017] By controlling the strength of the magnetic field generated by the coil, the constraint effect of each constraint unit can be controlled. Since the diameter of the rod is large, the diameter of the liquid flow that falls at the beginning after the rod is melted is large, and the particle size of the droplets formed by crushing and atomizing is large, so the diameter of the liquid flow needs to be reduced. Multiple constraint units can gradually reduce the diameter of the liquid flow, which is convenient for the feeding mechanism to control the feeding speed of the rod by observing the shape of the liquid flow. In addition, the step-by-step improvement of the constraint effect strengthens the laminar flow effect of the liquid flow and provides a stable superheat for the liquid flow, so that the liquid flow has a more balanced phase and temperature distribution, thereby improving the crushing and atomization effect of the droplets.

[0018] As a further embodiment of the present invention: after being constrained by a plurality of the constraining units, the liquid flow or liquid droplet is reduced to a diameter of 2 mm to 5 mm. The liquid flow with this diameter is crushed by the high-pressure gas and the powder after atomization has a good fineness distribution and a high powder recovery rate.

[0019] As a further embodiment of the present invention: the feeding mechanism is composed of a plurality of guide wheels arranged relatively to each other, and the bar material is clamped between the plurality of guide wheels and conveyed at a speed of 2 mm / s to 5 mm / s. The guide wheels clamp the bar material between them, and the conveying speed of the bar material is controlled by the relative rotation of the guide wheels. At this conveying speed, the bar material forms a continuous process from melting to crushing and atomization.

[0020] As a further embodiment of the present invention: threaded interfaces and threaded sockets are respectively provided at both ends of the bar, and two adjacent sections of the bar are butted together by threads during transportation to achieve continuous feeding. In order to achieve continuous feeding, a single section of the bar is gradually shortened after melting processing. When the tail end is about to touch the feeding mechanism, the next section of the bar is connected to the previous section of the bar by threads to achieve continuous feeding of the bar, avoid shutdowns, vacuuming, argon replacement and other processes caused by repeated replacement of the bar, avoid waste of tail materials, and significantly improve production efficiency. The length of a single section of titanium alloy bar is usually between 300mm and 6000mm. In order to reduce the frequency of bar connection and reduce the difficulty of connecting the bar, the length of the bar is controlled between 1000mm and 1500mm. The threaded connection achieves oxidation-free, low-disturbance, high-stability and high-efficiency connection between the two sections of the bar.

[0021] As a further embodiment of the present invention: it also includes a vacuum system and a sealing cover, the preheating unit, the smelting unit and the restraint are arranged inside the sealing cover, and the pipes of the vacuum system are connected to the sealing cover and the atomizing unit respectively. The vacuum system is used to evacuate the sealing cover and the atomizing unit to prevent the molten titanium alloy from oxidizing. Since rods are used for feeding, the rods themselves have high strength and can overcome the sealing resistance of the sealing cover under the propulsion of the feeding mechanism to enter the interior of the sealing cover without affecting their own structural state. Therefore, the sealing range of the sealing cover can be limited to the preheating unit, the smelting unit and the restraint, which minimizes the vacuum system's vacuum power and the leakage rate of the protective gas, and there is no need to repeatedly open the sealing cover, resulting in repeated vacuuming and argon filling.

[0022] As a further embodiment of the present invention, a sealing ring is provided at the portion of the sealing cover located at the rod inlet. The sealing ring establishes a sealing structure between the sealing cover and the rod through rubber or silicone material to prevent oxygen from leaking into the sealing cover during the advancement of the rod.

[0023] As a further embodiment of the present invention: the preheating temperature of the preheating unit is 1100° C. to 1300° C. Since the diameter of the bar is large, a higher preheating temperature is required to heat the bar and transport it to the smelting unit, otherwise the central area inside the bar will not be able to form liquid flow in time.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention heats and melts the titanium alloy rod through a preheating unit and a smelting unit. After the molten titanium falls to the restrainer, it is guided to form a liquid flow or droplets with uniform diameter under the restraint of a magnetic field, and then broken into fine droplets by a spray of high-pressure argon gas. The droplets are cooled and solidified to obtain spherical titanium alloy powder. The rod is used for heating and melting treatment, which reduces the material cost and raw material processing cost. Since the rod itself has a high strength, the transportation process and melting process of the rod are more stable and continuous. The restrainer guides and restrains the liquid flow through an alternating magnetic field, which can provide a certain degree of superheat for the titanium alloy melt, and form a liquid flow with controllable diameter and uniform and continuous phase state, thereby improving the yield rate of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present drawings or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present drawings. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the continuous titanium alloy atomization powder making equipment;

[0028] Figure 2 for Figure 1 Magnified view of area A.

[0029] In the figure: 1. feeding mechanism; 2. preheating unit; 3. smelting unit; 4. restraint; 41. restraint unit; 5. atomization unit; 6. vacuum system; 7. sealing cover; 8. sealing ring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0031] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0032] However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of well-known matters and repeated descriptions of substantially the same structures may be omitted. This is to avoid the following description from becoming unnecessarily lengthy and to facilitate understanding by those skilled in the art. In addition, the drawings and the following description are provided to enable those skilled in the art to fully understand the present application and are not intended to limit the subject matter described in the claims.

[0033] Example 1

[0034] See also Figure 1 and Figure 2 As shown, the continuous titanium alloy atomizing powder making equipment of the present invention comprises a feeding mechanism 1, a preheating unit 2, a smelting unit 3, a restrainer 4 and an atomizing unit 5. On this basis, a method for preparing titanium alloy powder by using the continuous titanium alloy atomizing powder making equipment is provided, comprising the following steps:

[0035] S1. Raw material preparation: Select TC4 titanium alloy bars with a diameter of 70 mm and a length of 1000 mm (the titanium alloy bars used below have the same model and will not be described in detail) as single-cut bars, and process threaded interfaces and threaded sockets at both ends of the bars;

[0036] S2. Vacuuming to establish a protective atmosphere: The vacuum system 6 evacuates the sealing cover 7 and the atomizing unit 5 to 10 - 3 Pa, after evacuation, fill with argon to establish a protective atmosphere;

[0037] S3, bar feeding: the bar is driven by the guide wheel of the feeding mechanism 1 to be conveyed to the preheating unit 2 inside the sealing cover 7 at a speed of 2mm / s to 3mm / s, and the bar and the sealing cover 7 are sealed by the sealing ring 8;

[0038] S4, preheating treatment: preheat the bar material to 1180℃~1220℃ through the induction coil in the preheating unit 2;

[0039] S5, smelting treatment: melting the preheated bar material into a liquid flow through the induction coil in the smelting unit 3;

[0040] S6, magnetic confinement treatment: magnetic confinement and guidance of the liquid flow is performed through the single-stage confinement unit 41 at a magnetic induction intensity of 1400G, and the diameter of the liquid flow is reduced to 4mm to 5mm;

[0041] S7, atomization powder making: the liquid flow flows into the atomization unit 5, and argon gas is sprayed through a high-pressure nozzle to break up and atomize the liquid flow. The argon pressure is 10MPa, and the atomization gas flow rate is 150L / s to 180L / s. The atomized droplets solidify and cool to form spherical powder, which is collected by filtering and separating equipment.

[0042] S8, continuous feeding: When the tail end of the front section of the bar material is continuously fed to the feeding mechanism 1, the next section of the bar material is threadedly connected with the front section of the bar material to achieve continuous feeding of the bar material. There is no downtime during the process of replacing the bar material, and the threaded connection time of the two sections of the bar material is about 4 minutes.

[0043] Through the above process, continuous feeding of titanium alloy bars can be achieved, and there is no tailing after the bars are smelted. The yield rate of 0um-60um finished powder is 74%, and the yield rate of 15um-53um finished powder is 56%, which can achieve 24-hour continuous mass production.

[0044] Example 2

[0045] See also Figure 1 and Figure 2 As shown, the continuous titanium alloy atomizing powder making equipment of the present invention comprises a feeding mechanism 1, a preheating unit 2, a smelting unit 3, a restrainer 4 and an atomizing unit 5. On this basis, a method for preparing titanium alloy powder by using the continuous titanium alloy atomizing powder making equipment is provided, comprising the following steps:

[0046] S1. Raw material preparation: Select a titanium alloy bar with a diameter of 20 mm and a length of 1000 mm as a single-section bar, and process threaded interfaces and threaded sockets at both ends of the bar;

[0047] S2. Vacuuming to establish a protective atmosphere: The vacuum system 6 evacuates the sealing cover 7 and the atomizing unit 5 to 10 - 3 Pa, after evacuation, fill with argon to establish a protective atmosphere;

[0048] S3, bar feeding: the bar is driven by the guide wheel of the feeding mechanism 1 to be conveyed to the preheating unit 2 inside the sealing cover 7 at a speed of 4 mm / s to 5 mm / s, and the bar and the sealing cover 7 are sealed by the sealing ring 8;

[0049] S4, preheating treatment: preheat the bar material to 1180℃~1220℃ through the induction coil in the preheating unit 2;

[0050] S5, smelting treatment: melting the preheated bar material into a liquid flow through the induction coil in the smelting unit 3;

[0051] S6, magnetic confinement treatment: magnetic confinement and guidance of the liquid flow is performed through the single-stage confinement unit 41 at a magnetic induction intensity of 1200G, and the diameter of the liquid flow is reduced to 2mm to 3mm;

[0052] S7, atomization powder making: the liquid flow flows into the atomization unit 5, and argon gas is sprayed through a high-pressure nozzle to break up and atomize the liquid flow. The argon pressure is 10MPa, and the atomization gas flow rate is 150L / s to 180L / s. The atomized droplets solidify and cool to form spherical powder, which is collected by filtering and separating equipment.

[0053] S8, continuous feeding: When the tail end of the front section of the bar material is continuously fed to the feeding mechanism 1, the next section of the bar material is threadedly connected with the front section of the bar material to achieve continuous feeding of the bar material. There is no downtime during the process of replacing the bar material, and the threaded connection time of the two sections of the bar material is about 2 minutes.

[0054] Through the above process, continuous feeding of titanium alloy bars can be achieved, and there is no tailing after the bars are smelted. The yield rate of 0um-60um finished powder is 75%, and the yield rate of 15um-53um finished powder is 55%, which can achieve 24-hour continuous mass production.

[0055] Example 3

[0056] The difference between Example 3 and Example 1 is that Example 3 uses two-stage constraint units 41 to magnetically constrain and guide the liquid flow. The magnetic induction intensity of the first-stage constraint unit 41 is 1200G, and the magnetic induction intensity of the second-stage constraint unit 41 is 1400G, which gradually reduces the diameter of the liquid flow to 4mm to 5mm. After the two-stage constraint, the forming process of the liquid flow is more stable, the superheat of the liquid flow is improved, and the yield rate of the finished powder is stably improved compared with Example 1.

[0057] Example 4

[0058] The difference between Example 4 and Example 1 is that in Example 4, a titanium alloy bar with a diameter of 50 mm and a length of 1000 mm is selected as a single-cut bar. The thread processing difficulty of the 50 mm diameter single-cut bar is lower than that of the 20 mm diameter single-cut bar in Example 2, and the bar replacement speed is reduced compared with Example 2, and the powder making efficiency is improved.

[0059] Comparative Example 1

[0060] The equipment used in Comparative Example 1 is the same as that in Example 1. A titanium alloy wire with a diameter of 5 mm is selected as the melt. The wire is led out through a take-up reel and driven by a guide wheel. The take-up reel, preheating unit, smelting unit and restraint are integrally covered inside a sealing cover.

[0061] S1. Vacuum to create a protective atmosphere: The vacuum system evacuates the sealing cover and the atomization unit to 10 -3 Pa, after evacuation, fill with argon to establish a protective atmosphere;

[0062] S2, wire feeding: the wire is driven by a guide wheel to be transported to the preheating unit inside the sealing cover at a speed of 150 mm / s;

[0063] S3, preheating treatment: preheat the bar to 1000°C through the induction coil in the preheating unit;

[0064] S4, melting treatment: melting the preheated wire into a liquid flow through an induction coil in a melting unit;

[0065] S5, magnetic confinement treatment: The liquid flow is magnetically confined and guided by a two-stage confinement unit 41, the magnetic induction intensity of the first-stage confinement unit 41 is 1100G, and the magnetic induction intensity of the second-stage confinement unit 41 is 1200G, and the diameter of the liquid flow is reduced to 2mm-3mm;

[0066] S6. Atomization powder making: the liquid flow flows into the atomization unit 5, and argon gas is sprayed through a high-pressure nozzle to break up and atomize the liquid flow. The argon pressure is 10MPa, and the atomization gas flow rate is 150L / s to 180L / s. The atomized droplets solidify and cool to form spherical powders, which are collected by filtering and separating equipment.

[0067] The molten material used in this comparative example is the finished titanium alloy wire purchased, and the cost is significantly higher than that of the rod. Through the above process, it is found that during the conveying process of the wire with the guide wheel, the front end of the wire is not tensioned, and the friction deviation of the guide wheel on both sides of the wire affects the position of the front end of the wire. It is difficult to control the position of the head of the wire. The personnel need to stop the equipment intermittently and make continuous adjustments, and repeatedly perform vacuum and argon treatment, and continuous feeding cannot be achieved. The yield rate of 0um~60um finished powder is 73%, and the yield rate of 15um~53um finished powder is 57%.

[0068] Comparative Example 2

[0069] The equipment used in Comparative Example 2 is the same as that in Example 1, except that the liquid flow or liquid droplets are not constrained by a constrainer in Comparative Example 2, and the liquid flow or liquid droplets formed by the rod melting directly enter the atomization unit for crushing and atomization.

[0070] S1. Raw material preparation: Select a titanium alloy bar with a diameter of 70 mm and a length of 1000 mm as a single-section bar, and process threaded interfaces and threaded sockets at both ends of the bar;

[0071] S2. Vacuum to create a protective atmosphere: The vacuum system evacuates the sealing cover and the atomization unit to 10-3 Pa, after evacuation, fill with argon to establish a protective atmosphere;

[0072] S3, bar feeding: the bar is driven by the guide wheel of the feeding mechanism to be transported to the preheating unit inside the sealing cover at a speed of 2mm / s to 3mm / s, and the bar and the sealing cover are sealed by a sealing ring;

[0073] S4, preheating treatment: preheat the bar to 1180℃~1220℃ through the induction coil in the preheating unit;

[0074] S5, melting treatment: melting the preheated bar material into liquid flow or liquid droplets through the induction coil in the melting unit;

[0075] S6. Atomization powder making: The liquid flow flows into the atomization unit, and argon gas is sprayed through a high-pressure nozzle to break up and atomize the liquid flow. The argon pressure is 10MPa, and the atomization gas flow rate is 150L / s~180L / s. The atomized droplets solidify and cool to form spherical powder, which is collected by filtering and separation equipment.

[0076] S7, continuous feeding: When the tail end of the front bar is continuously fed to the feeding mechanism, the next bar is threadedly connected with the front bar to achieve continuous feeding of the bar. There is no downtime during the bar replacement process, and the threaded connection time of the two sections of bar is about 4 minutes.

[0077] Through the above process, the continuous feeding of titanium alloy bars can be achieved, and there is no tailing after the bars are smelted. In step S5, the liquid flow or droplets formed by the melting of the bars flow to the atomization unit in an irregular phase state, and the diameter of the liquid flow or droplets is uncontrollable. The yield rate of 0um to 60um finished powder is 55%, and the yield rate of 15um to 53um finished powder is 42%.

[0078] Comparative Example 3

[0079] The difference between Comparative Example 3 and Example 1 is that the preheating temperature of Comparative Example 3 is 1000°C. Due to the large diameter of the rod, a lower temperature requires a longer preheating time, so the feed speed of the rod is controlled at 1mm / s to 2mm / s, which reduces production efficiency.

[0080] Comparative Example 4

[0081] The difference between Comparative Example 4 and Example 2 is that a titanium alloy bar with a diameter of 10 mm and a length of 1000 mm is selected as a single-cut bar material in Comparative Example 4. Due to the small diameter of the bar material, the precision and difficulty required for machining the thread are increased, and the machining cost is increased compared with Example 2.

[0082] Comparative Example 5

[0083] The difference between Comparative Example 5 and Example 1 is that a titanium alloy bar with a diameter of 100 mm and a length of 1000 mm is selected as a single-cut bar in Comparative Example 5. Due to the large diameter of the bar, the waste formed by processing the thread begins to increase significantly, and the temperature required for preheating also needs to be increased, the forward speed of the bar decreases, the liquid flow drop speed is difficult to control, and the production efficiency begins to decrease significantly.

[0084] It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only examples, and the embodiments having the same structure as the technical idea and exerting the same effect within the scope of the technical solution of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the main purpose of the present application, various modifications that can be thought of by those skilled in the art to the embodiments and other methods of combining some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. Continuous titanium alloy atomization powder making equipment, characterized in that: include: A feeding mechanism (1), wherein the feeding mechanism (1) is capable of continuously conveying rods, wherein the diameter of the rods is 15 mm to 90 mm; A preheating unit (2) is used to preheat the bar material conveyed by the feeding mechanism (1); A melting unit (3) for melting the preheated bar material to form a liquid stream or liquid droplets; A confinement device (4), wherein the confinement device (4) generates an alternating electromagnetic field to magnetically confine the liquid flow or liquid droplets; The atomizing unit (5) crushes the liquid flow or liquid droplets flowing out of the restrainer (4) into powder after being cooled and solidified.

2. The continuous titanium alloy atomizing powder making equipment according to claim 1, characterized in that: The constrainer (4) comprises at least two constraining units (41), and the multiple constraining units (41) have a gradually enhanced constricting effect on the diameter reduction of the liquid flow or liquid droplets.

3. The continuous titanium alloy atomization powder making equipment according to claim 2, characterized in that: After being constrained by the plurality of constraining units (41), the liquid flow or liquid droplet is reduced in diameter to 2 mm to 5 mm.

4. The continuous titanium alloy atomizing powder making equipment according to claim 1, characterized in that: The feeding mechanism (1) is composed of a plurality of guide wheels arranged opposite to each other, and the bar material is clamped between the plurality of guide wheels and conveyed at a speed of 2 mm / s to 5 mm / s.

5. The continuous titanium alloy atomizing powder making equipment according to claim 1, characterized in that: The two ends of the bar material are respectively provided with a threaded interface and a threaded socket. When the bar material is transported, two adjacent sections of the bar material are butted together through the threads to realize continuous feeding.

6. The continuous titanium alloy atomization powder making equipment according to claim 1, characterized in that: It also includes a vacuum system (6) and a sealing cover (7), wherein the preheating unit (2), the smelting unit (3) and the restrainer (4) are arranged inside the sealing cover (7), and the pipeline of the vacuum system (6) is connected to the sealing cover (7) and the atomization unit (5) respectively.

7. The continuous titanium alloy atomization powder making equipment according to claim 6, characterized in that: The sealing cover (7) is provided with a sealing ring (8) at the position of the rod material inlet.

8. The continuous titanium alloy atomization powder making equipment according to claim 1, characterized in that: The preheating temperature of the preheating unit (2) is 1100°C to 1300°C.

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