A tin-based alloy powder preparation device and a preparation method thereof

Abstract

The application relates to the technical field of tin-based alloy welding powder preparation, and discloses a tin-based alloy powder preparation device and a preparation method thereof, which comprises a main body, a preparation shell is bolt-connected in the inside of the main body, and a collecting cylinder is bolt-connected to the bottom of the preparation shell. When the gas flows in the gas inlet groove, the gas is guided by the inclined plate to be sprayed outwards in an inclined way through the annular groove. At this time, the solution thrown out presents an oblique projectile trajectory under the blowing of the gas sprayed out through the annular groove, so that the solution is not thrown out in a horizontal direction. By forcibly throwing out the solution in a parabolic way, the situation that a large number of liquid droplets collide and contact in the throwing process, form uneven and large powder particles can be reduced, the uniformity of powder granularity preparation is ensured, and the powder preparation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of tin-based alloy solder powder preparation technology, specifically to a tin-based alloy powder preparation apparatus and its preparation method. Background Technology

[0002] Tin-based alloys are non-ferrous metal alloys made primarily of tin (Sn) (usually tin content is the majority), with the addition of other elements (such as antimony, copper, lead, etc.). Their most notable characteristics are low melting points (generally between 138-370℃), corrosion resistance, and good thermal conductivity.

[0003] In the preparation of tin-based alloy powder, molten tin alloy is typically dropped onto a high-speed rotating disk. The centrifugal force generated by the high speed of the disk propels the molten metal off the disk surface, breaking it into countless tiny droplets of varying sizes. These droplets then naturally cool and shrink into spherical shapes during flight. The powder is then collected. Since the surface of the disk is usually a flat plane, and the droplets propelled by centrifugal force follow a horizontal flight path with the disk surface, the smaller droplets decelerate more quickly due to air resistance. Meanwhile, larger particles that are still in a molten or semi-molten state are more likely to come into contact with the slower-moving smaller droplets due to inertia, affecting the uniformity of the powder particle size and reducing the powder preparation efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a tin-based alloy powder preparation apparatus and method, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a tin-based alloy powder preparation apparatus, comprising a main body, a preparation shell bolted to the inside of the main body, a collection cylinder bolted to the bottom of the preparation shell, and further comprising:

[0007] A centrifugal mechanism is installed inside the preparation shell and is used to prepare the alloy solution into powder.

[0008] The centrifugation mechanism includes a rotating disk disposed inside the preparation shell, and several air inlet slots are formed on the outer surface of the rotating disk;

[0009] When the rotating disk rotates rapidly, it can capture the gas inside the main body through several air intake slots, allowing the gas to enter the air intake slots.

[0010] A guide plate is fixedly connected to the side wall of the rotating disk located in the near air inlet area of ​​the air inlet slot. By tilting the guide plate, the gas outside the rotating disk can be captured when the rotating disk rotates rapidly, so that the gas can enter the near air inlet slot.

[0011] An auxiliary mechanism is installed inside the rotating disk to prevent powder from flowing back into the air inlet slot with the airflow.

[0012] The auxiliary mechanism includes an arc-shaped ring disposed inside the rotating disk.

[0013] Furthermore, the main body includes:

[0014] The preparation component is installed on the side wall of the preparation shell;

[0015] The drive assembly is installed inside the housing.

[0016] When the drive component drives the rotating disk to rotate rapidly, the rotating disk will quickly throw the falling solution outward.

[0017] Furthermore, the centrifuge mechanism also includes:

[0018] The contact component is installed inside the rotating disk. When gas enters the air inlet, the flow of gas will create an upward blowing force on the ejected solution.

[0019] The connecting component is installed inside the rotating disk.

[0020] Furthermore, the auxiliary mechanisms also include:

[0021] The active component is installed on top of the arc-shaped ring;

[0022] An interception component is installed inside the air intake slot to prevent powder from entering the air intake slot with the gas.

[0023] Furthermore, the preparation assembly includes a feed cylinder fixedly connected to the top of the preparation housing;

[0024] The drive assembly includes a fixed rod that is fixedly connected inside the housing, and a drive motor is bolted to the top of the fixed rod.

[0025] Furthermore, the contact component includes a circular groove formed on the top of the rotating disk;

[0026] The connecting component includes an annular groove formed on the top of the rotating disk;

[0027] The inner wall of the air intake slot is provided with a rectangular groove, and an inclined plate is fixedly connected to the inner wall of the air intake slot.

[0028] Among them, the near-gas slot is connected to the circular slot through the rectangular slot, and the annular slot is connected to multiple near-gas slots.

[0029] Furthermore, the arc-shaped ring is fixedly connected to the bottom inner wall of the circular groove;

[0030] The movable component includes a T-shaped plate that is slidably connected to the inner wall of the bottom of the circular groove, and a semi-circular plate that is fixedly connected to the top of the T-shaped plate;

[0031] A limit spring is fixedly connected to the bottom of the semicircular plate, and the bottom of the limit spring is fixedly connected to the bottom inner wall of the circular groove.

[0032] Furthermore, the interception assembly includes a limiting shaft that is rotatably connected to the inner walls of the top and bottom of the air intake slot;

[0033] A barrier net is slidably connected between the two limiting shafts.

[0034] Furthermore, the sidewalls of the barrier net are inclined, and the limiting shaft is eccentrically positioned relative to the barrier net;

[0035] The sidewalls of the barrier net are equipped with elastic plates, which are fixedly connected to the sidewalls of the air intake slot.

[0036] Furthermore, a method for preparing a tin-based alloy powder preparation apparatus, the tin-based alloy powder preparation apparatus, the method comprising the following steps:

[0037] S1: Delivery and Start-up: First, the staff delivers inert gas into the interior of the preparation shell and starts the drive motor at the same time. When the drive motor is working, it will drive the rotating disk and the semi-circular plate to rotate rapidly.

[0038] S2: Pour in the solution: Then pour the tin-based alloy solution into the feed cylinder. At this time, the solution will drip down through the feed cylinder and fall to the middle of the semi-circular plate.

[0039] S3: Rotation into powder: The rotating disk and semi-circular plate rotate at high speed, which causes the dripping solution to be thrown outward under the action of centrifugal force. The solution is broken into countless tiny droplets of different sizes, and the droplets naturally cool and shrink into spherical shapes during the flight.

[0040] The present invention has the following beneficial effects:

[0041] 1. In this invention, when gas flows in the inlet groove, the gas is guided by the inclined plate and sprayed outward at an angle through the annular groove. At this time, the solution being thrown out will be blown by the gas sprayed out through the annular groove and will present an upward projectile trajectory, so that the solution is no longer thrown out in a horizontal direction. By forcing the solution to be thrown out in a parabolic direction, the collision and contact of countless droplets during the throwing process can be reduced, which would result in uneven and large-volume powder particles. This ensures the uniformity of powder particle size preparation and improves powder preparation efficiency.

[0042] 2. In this invention, when the sidewall of the barrier net is clogged with too much powder, the gas flowing into the air inlet groove will be guided by the guide plate and the curved surface of the bent elastic sheet, resulting in backflow, as shown in the gas flow path in the figure. At this time, the backflowing airflow will clean the powder attached to the sidewall of the barrier net. By reducing the amount of powder entering the air inlet groove with the airflow, the purity of the gas sprayed into the ejected solution through the annular groove can be ensured, and the gas carrying powder sprayed into the solution can be reduced, which would cause the ejected solution to have uneven secondary forming. This further ensures the uniformity of powder forming and improves the powder preparation efficiency.

[0043] 3. In this invention, the flow of gas from multiple air inlets into the circular groove allows the semicircular plate to slide up and down in small amplitudes during high-speed rotation due to the impact of uneven airflow and the elastic action of the limiting spring. This up-and-down movement of the semicircular plate reduces the occurrence of direct flow and wall solidification of the solution on the arc surface of the semicircular plate when it is thrown outwards. This further ensures the continuity of the solution being thrown into powder and improves the efficiency of powder preparation.

[0044] 4. In this invention, since the outer surface of the semicircular plate is curved, the gas that subsequently enters the gap between the circular groove and the semicircular plate will flow out obliquely outward along the curved surface of the semicircular plate. At this time, the outflowing gas will impact the gas ejected through the annular groove at an angle, ensuring the angle of the gas ejected from the annular groove. This allows the gas to be ejected more obliquely through the annular groove, reducing the splashing of the solution caused by the airflow impact when the gas comes into contact with the ejected solution. This ensures the smoothness of the solution when it is ejected, enhances the forming efficiency of the solution after being ejected into powder, and improves the stability of the powder forming.

[0045] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0049] Figure 3 For the present invention Figure 2Enlarged view of point A in the middle;

[0050] Figure 4 This is a partially exploded cross-sectional view of the contact component of the present invention;

[0051] Figure 5 This is a partial cross-sectional structural diagram of the centrifuge mechanism of the present invention;

[0052] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0053] Figure 7 This is a schematic cross-sectional view of half of the centrifuge mechanism of the present invention;

[0054] Figure 8 This is a bottom view of the active component structure of the present invention;

[0055] Figure 9 This is a schematic diagram of the state of the interception component after movement according to the present invention;

[0056] Figure 10 This is a flowchart of the preparation method of the present invention.

[0057] The attached diagram lists the components represented by each number as follows:

[0058] In the diagram: 1. Main body; 11. Preparation component; 111. Preparation shell; 112. Collection cylinder; 113. Feed cylinder; 12. Drive component; 121. Fixing rod; 122. Drive motor; 2. Centrifugal mechanism; 21. Contact component; 211. Rotating disk; 212. Air inlet slot; 213. Circular slot; 22. Connecting component; 221. Annular slot; 222. Rectangular slot; 223. Inclined plate; 3. Auxiliary mechanism; 301. Arc ring; 31. Movable component; 311. T-shaped plate; 312. Semicircular plate; 32. Interception component; 321. Barrier net; 322. Elastic sheet. Detailed Implementation

[0059] 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.

[0060] Please see Figures 1-10 As shown, the present invention is a tin-based alloy powder preparation device, including a main body 1, a preparation shell 111 bolted to the inside of the main body 1, a collection cylinder 112 bolted to the bottom of the preparation shell 111, and further comprising:

[0061] Centrifuge mechanism 2 is installed inside the preparation shell 111 and is used to prepare the alloy solution into powder.

[0062] The centrifugation mechanism 2 includes a rotating disk 211 disposed inside the preparation shell 111, and a plurality of air inlet grooves 212 are formed on the outer surface of the rotating disk 211;

[0063] When the rotating disk 211 rotates rapidly, it can capture the gas inside the main body 1 through several air inlet slots 212, allowing the gas to enter the air inlet slots 212.

[0064] A guide plate is fixedly connected to the side wall of the rotating disk 211 located in the near air port area of ​​the air inlet slot 212. By tilting the guide plate, the gas outside the rotating disk 211 can be captured when the rotating disk 211 rotates rapidly, so that the gas can enter the near air port 212.

[0065] Auxiliary mechanism 3 is installed inside the rotating disk 211 to prevent powder from flowing back into the air inlet 212 with the airflow;

[0066] The auxiliary mechanism 3 includes an arc-shaped ring 301 disposed inside the rotating disk 211.

[0067] Entity 1 includes:

[0068] Preparation component 11 is installed on the side wall of preparation housing 111;

[0069] Drive component 12 is installed inside the housing 111;

[0070] When the drive assembly 12 drives the rotating disk 211 to rotate rapidly, the rotating disk 211 will quickly throw the falling solution outward.

[0071] Centrifuge mechanism 2 also includes:

[0072] Contact component 21 is installed inside the rotating disk 211. When gas enters the air inlet groove 212, the flow of gas will create an upward blowing force on the ejected solution.

[0073] The connecting component 22 is installed inside the rotating disk 211.

[0074] Auxiliary mechanism 3 also includes:

[0075] Active component 31 is installed on top of the arc-shaped ring 301;

[0076] The interception component 32 is installed inside the air inlet slot 212 to prevent powder from entering the air inlet slot 212 with the gas.

[0077] Preparation component 11 includes a feed cylinder 113 fixedly connected to the top of preparation housing 111;

[0078] The drive assembly 12 includes a fixed rod 121 fixedly connected inside the preparation housing 111. The top of the fixed rod 121 is bolted to a drive motor 122. First, the operator delivers inert gas into the preparation housing 111 and starts the drive motor 122. When the drive motor 122 is working, it will drive the rotating disk 211 and the semi-circular plate 312 to rotate rapidly.

[0079] Contact component 21 includes a circular groove 213 formed on the top of rotating disk 211;

[0080] The connecting component 22 includes an annular groove 221 formed on the top of the rotating disk 211;

[0081] The inner wall of the air intake slot 212 is provided with a rectangular slot 222, and an inclined plate 223 is fixedly connected to the inner wall of the air intake slot 212.

[0082] Among them, the near-gas groove 212 is connected to the circular groove 213 through the rectangular groove 222. At the same time, the annular groove 221 is connected to multiple near-gas grooves 212. When the solution drips, the solution will fall into the semi-circular groove of the semi-circular plate 312. At this time, under the centrifugal force of the high-speed rotation of the semi-circular plate 312 and the rotating disk 211, the solution will be guided by the semi-circular groove on the upper part of the semi-circular plate 312 and accelerate outward and upward from the bottom of the semi-circular groove along the arc surface.

[0083] The arc-shaped ring 301 is fixedly connected to the bottom inner wall of the circular groove 213;

[0084] The active component 31 includes a T-shaped plate 311 that is slidably connected to the inner wall of the bottom of the circular groove 213, and a semi-circular plate 312 is fixedly connected to the top of the T-shaped plate 311.

[0085] A limit spring is fixedly connected to the bottom of the semicircular plate 312, and the bottom of the limit spring is fixedly connected to the bottom inner wall of the circular groove 213.

[0086] The interception assembly 32 includes a limiting shaft that is rotatably connected to the inner walls of the top and bottom of the air intake slot 212;

[0087] A barrier net 321 is slidably connected between the two limiting shafts. When the rotating disk 211 rotates at high speed, the barrier net 321 inside the air intake groove 212 will generate an outward pushing force under the action of centrifugal force. Since the barrier net 321 and the limiting shaft are eccentrically set, when multiple barrier nets 321 rotate at high speed with the rotating disk 211, the barrier net 321 will change from the initial inclined state to an approximately horizontal state.

[0088] The sidewalls of the barrier net 321 are inclined, and the limiting shaft is eccentrically positioned with respect to the barrier net 321.

[0089] The side wall of the barrier net 321 is provided with an elastic sheet 322, which is fixedly connected to the side wall of the air inlet groove 212. When the barrier net 321 rotates under the action of high-speed centrifugal force, its end will push the side wall of the elastic sheet 322, causing the elastic sheet 322 to bend at one end of the barrier net 321. At this time, the gas will flow normally through the barrier net 321. When the side wall of the barrier net 321 is blocked by too much powder, the gas flowing into the air inlet groove 212 will be guided by the guide plate and the curved surface of the bent elastic sheet 322, resulting in backflow.

[0090] A method for preparing a tin-based alloy powder preparation apparatus, the method comprising the following steps:

[0091] S1: Delivery and Start-up: First, the staff delivers inert gas into the interior of the preparation shell 111, and at the same time starts the drive motor 122. When the drive motor 122 is working, it will drive the rotating disk 211 and the semi-circular plate 312 to rotate rapidly.

[0092] S2: Pour in solution: Then pour the tin-based alloy solution into the feed cylinder 113. At this time, the solution will drip down through the feed cylinder 113 and fall to the middle of the semi-circular plate 312.

[0093] S3: Rotation into powder: The rotating disk 211 and the semi-circular plate 312 rotate at high speed, which can cause the dripping solution to be thrown outward under the action of centrifugal force. The solution is broken into countless tiny droplets of different sizes, and the droplets naturally cool and shrink into spherical shapes during the flight.

[0094] In use, the operator first introduces inert gas into the preparation shell 111 and starts the drive motor 122. When the drive motor 122 is working, it drives the rotating disk 211 and the semi-circular plate 312 to rotate rapidly. Then, the tin-based alloy solution is poured into the feed cylinder 113. At this time, the solution drips down through the feed cylinder 113. The dripping solution falls to the middle of the semi-circular plate 312. At this time, the rotating disk 211 and the semi-circular plate 312 rotate at high speed, which causes the dripping solution to be thrown outward under the action of centrifugal force. The solution is broken into countless tiny droplets of different sizes. During the flight, the droplets naturally cool and shrink into spherical shapes and fall into the collection cylinder 112, thus completing the preparation of alloy powder.

[0095] As the solution drips, it falls into the semi-circular groove of the semi-circular plate 312. Under the centrifugal force of the high-speed rotation of the semi-circular plate 312 and the rotating disk 211, the solution is guided by the upper semi-circular groove of the semi-circular plate 312, accelerating outwards and upwards from the bottom of the groove along the arc surface. When the solution reaches the edge of the semi-circular plate 312, it forms a uniform liquid film within the plate under centrifugal force, and then is thrown outwards along the arc surface of the plate 312. Simultaneously, the high-speed rotation of the rotating disk 211 drives multiple external guide plates to rotate synchronously at high speed. At this time, the gas outside the rotating disk 211 is guided by these guide plates as the rotating disk 211 rotates... The high-speed rotation captures external gas, which is then guided by the guide plate into multiple air inlet slots 212 and flows within them. As the gas flows within the air inlet slots 212, it is guided by the inclined plate 223 and ejected obliquely outward through the annular groove 221. At this time, the ejected solution is blown by the gas ejected through the annular groove 221 and exhibits an oblique upward trajectory, preventing the solution from being ejected horizontally. By forcing the solution to be ejected in a parabolic trajectory, the collision and contact of numerous droplets during ejection can be reduced, thus reducing the formation of uneven and large-volume powder particles. This ensures the uniformity of powder particle size preparation and improves powder preparation efficiency.

[0096] When the rotating disk 211 rotates at high speed, the baffle net 321 inside the air intake slot 212 will generate an outward pushing force under the action of centrifugal force. Since the baffle net 321 is eccentrically set with the limiting shaft, when multiple baffle nets 321 rotate with the rotating disk 211 at high speed, the baffle net 321 will change from the initial inclined state to an approximately horizontal state, presenting a Figure 9 As indicated by G, the barrier net 321 forms a filter layer within the air intake slot 212, blocking the powder in the gas. The barrier net 321's obstruction within the air intake slot 212 reduces the high-speed rotation of the rotating disk 211, preventing the gas from carrying powder into the slot and coming into contact with the ejected liquid. Simultaneously, when the barrier net 321 rotates under high-speed centrifugal force, its end pushes the sidewall of the elastic sheet 322, causing the elastic sheet 322 to bend at one end of the barrier net 321. At this time, the gas flows normally through the barrier net 321. However, when the sidewall of the barrier net 321 is clogged with excessive powder, the gas flowing into the air intake slot 212 is guided by the guide plate and the curved surface of the bent elastic sheet 322, resulting in backflow. Figure 9As shown in the flow path of the gas, the returning airflow will clean the powder attached to the side wall of the barrier net 321. By reducing the amount of powder entering the air inlet groove 212 with the airflow, the purity of the gas sprayed into the ejected solution through the annular groove 221 can be ensured. This reduces the amount of powder carried by the gas into the solution, which would cause uneven secondary forming of the ejected solution. This further ensures the uniformity of powder forming and improves the efficiency of powder preparation.

[0097] It should be noted that multiple barrier nets 321 will rotate outward synchronously under the action of high-speed centrifugal force. At this time, multiple barrier nets 321 will maintain their position consistency when the rotating disk 211 rotates at high speed, thereby maintaining the stability of the rotating disk 211 when it rotates at high speed.

[0098] When the gas rapidly enters the air inlet groove 212 under the guidance of the external guide plate of the rotating disk 211, some of the gas flowing in the air inlet groove 212 will enter the space between the circular groove 213 and the semi-circular plate 312 through the rectangular groove 222. Through the flow of gas from multiple air inlet grooves 212 into the circular groove 213, the semi-circular plate 312 can be subjected to uneven airflow impact during high-speed rotation, and combined with the elastic action of the limiting spring, it can slide up and down in a small range. Through the up and down movement of the semi-circular plate 312, the contact area between the solution and the arc surface of the semi-circular plate 312 can be reduced, which would cause some solution to flow directly and solidify on the arc surface of the semi-circular plate 312 due to the large contact area between the solution and the arc surface of the semi-circular plate 312. This can further ensure the continuity of the solution when it is thrown out into powder, and further improve the preparation efficiency of powder.

[0099] When the gas flowing in the multiple air inlets 212 enters the space between the circular groove 213 and the semi-circular plate 312 through the rectangular groove 222, and the semi-circular plate 312 slides up and down, the upward sliding of the semi-circular plate 312 will separate its outer arc surface from the inner wall of the circular groove 213, forming a gap channel between them. Since the outer surface of the semi-circular plate 312 is arc-shaped, the gas that subsequently enters the gap between the circular groove 213 and the semi-circular plate 312 will flow out obliquely outward along the arc surface of the semi-circular plate 312. At this time, the outflowing gas will tilt and impact the gas ejected through the annular groove 221, ensuring the tilt of the gas ejected from the annular groove 221. This allows the gas to be ejected more obliquely through the annular groove 221, reducing the splashing of the solution caused by the airflow impact when the gas comes into contact with the ejected solution. This ensures the smoothness of the solution when it is ejected, enhances the molding efficiency of the solution after being ejected into powder, and improves the stability of powder molding.

[0100] Figure 9 The path described is the flow path through which the airflow removes the powder from the surface of the barrier mesh 321 after it becomes clogged with powder. Figure 7The diagram shows the flow path of gas entering the inlet groove 212, with some gas flowing out through the annular groove 221 and the other gas entering the circular groove 213 and the semi-circular plate 312 through the rectangular groove 222.

[0101] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A tin-based alloy powder preparation apparatus, comprising a main body (1), wherein a preparation shell (111) is bolted to the interior of the main body (1), and a collection cylinder (112) is bolted to the bottom of the preparation shell (111), characterized in that, Also includes: Centrifuge mechanism (2), which is installed inside the preparation shell (111) and is used to prepare the alloy solution into powder; The centrifugal mechanism (2) includes a rotating disk (211) disposed inside the preparation shell (111), and the outer surface of the rotating disk (211) is provided with a plurality of air inlet grooves (212). When the rotating disk (211) rotates rapidly, it can capture the gas inside the main body (1) through several air inlet slots (212) and allow the gas to enter the air inlet slots (212); A guide plate is fixedly connected to the side wall of the rotating disk (211) located in the area near the air inlet of the air inlet slot (212); Auxiliary mechanism (3) is installed inside the rotating disk (211) to prevent powder from flowing back into the air inlet slot (212) with the airflow; The auxiliary mechanism (3) includes an arc-shaped ring (301) disposed inside the rotating disk (211).

2. The tin-based alloy powder preparation apparatus according to claim 1, characterized in that: The main body (1) includes: Preparation component (11) is installed on the side wall of preparation housing (111); A drive assembly (12) is installed inside the housing (111); When the drive component (12) drives the rotating disk (211) to rotate rapidly, the rotating disk (211) will quickly throw the falling solution outward.

3. The tin-based alloy powder preparation apparatus according to claim 2, characterized in that: The centrifuge mechanism (2) further includes: Contact component (21), which is installed inside the rotating disk (211), when gas enters the air inlet groove (212), the flow of gas will form an upward blowing force on the ejected solution; A connecting component (22) is installed inside the rotating disk (211).

4. The tin-based alloy powder preparation apparatus according to claim 3, characterized in that: The auxiliary mechanism (3) also includes: An active component (31) is mounted on top of the arc-shaped ring (301); An interception component (32) is installed inside the air inlet slot (212) to prevent powder from entering the air inlet slot (212) with the gas.

5. The tin-based alloy powder preparation apparatus according to claim 2, characterized in that: The preparation component (11) includes a feed cylinder (113) fixedly connected to the top of the preparation housing (111). The drive assembly (12) includes a fixed rod (121) fixedly connected inside the housing (111), and a drive motor (122) is bolted to the top of the fixed rod (121).

6. The tin-based alloy powder preparation apparatus according to claim 4, characterized in that: The contact assembly (21) includes a circular groove (213) formed on the top of the rotating disk (211). The connecting component (22) includes an annular groove (221) formed on the top of the rotating disk (211). The inner wall of the air intake groove (212) is provided with a rectangular groove (222), and an inclined plate (223) is fixedly connected to the inner wall of the air intake groove (212).

7. The tin-based alloy powder preparation apparatus according to claim 6, characterized in that: The arc-shaped ring (301) is fixedly connected to the bottom inner wall of the circular groove (213); The movable component (31) includes a T-shaped plate (311) slidably connected to the inner wall of the bottom of the circular groove (213), and a semi-circular plate (312) is fixedly connected to the top of the T-shaped plate (311). A limiting spring is fixedly connected to the bottom of the semicircular plate (312), and the bottom of the limiting spring is fixedly connected to the bottom inner wall of the circular groove (213).

8. The tin-based alloy powder preparation apparatus according to claim 4, characterized in that: The interception assembly (32) includes a limiting shaft that is rotatably connected to the inner walls of the top and bottom of the air intake slot (212); A barrier net (321) is slidably connected between the two limiting shafts.

9. The tin-based alloy powder preparation apparatus according to claim 8, characterized in that: The sidewall of the barrier net (321) is inclined, and the limiting shaft is eccentrically positioned with respect to the barrier net (321). The sidewall of the barrier net (321) is provided with an elastic sheet (322), which is fixedly connected to the sidewall of the air inlet slot (212).

10. A method for preparing a tin-based alloy powder preparation apparatus, characterized in that: Using the base alloy powder preparation apparatus as described in claim 7, the method includes the following steps: S1: Delivery and Start-up: First, the staff delivers inert gas into the interior of the preparation shell (111) and starts the drive motor (122) at the same time. When the drive motor (122) is working, it will drive the rotating disk (211) and the semi-circular plate (312) to rotate rapidly. S2: Pour in solution: Then pour the tin-based alloy solution into the feed cylinder (113). At this time, the solution will drip down through the feed cylinder (113) and fall to the middle of the semi-circular plate (312). S3: Rotation into powder: The rotating disk (211) and the semi-circular plate (312) rotate at high speed, which can cause the dripping solution to be thrown outward under the action of centrifugal force. The solution is broken into countless tiny droplets of different sizes, and the droplets naturally cool and shrink into spherical shapes during flight.

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