Centrifugal liquid phase forming device for preparing ultramicro tin-based alloy welding powder

Abstract

The invention relates to the technical field of welding powder production, in particular to a centrifugal liquid phase forming device for preparing superfine tin-based alloy welding powder.The centrifugal liquid phase forming device comprises a base, a reaction assembly, a melting assembly, a pressure relief assembly and a water tank, the reaction assembly comprises a treatment tank fixedly arranged at the top end of the base, and a first notch is formed in the middle of the treatment tank; a communicating pipe is fixedly arranged on the inner side wall of the first notch, a plurality of nozzles are connected to the side wall of the communicating pipe in an inserted mode, and a first supporting frame is fixedly arranged on the inner side wall, close to the lower portion of the communicating pipe, of the first notch. Through cooperation of the base, the reaction assembly, the melting assembly, the pressure relief assembly, the water tank and the booster pump, the pressure relief assembly comprises a sleeve slidably connected to the interior of a third notch, when the internal pressure of a first notch is increased, the air pressure acts on the bottom end of a balancing weight to jack up the sleeve, and therefore the first notch and a climbing pipe are communicated to discharge redundant steam; and therefore, the air pressure in the notch I is reduced, and the safety and stability of discharging the tin powder particles are improved.

Description

Technical Field

[0001] The invention relates to the technical field of solder powder production, in particular to a centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder. Background Art

[0002] Ultrafine tin-based alloy solder powder is a material used for welding and connecting electronic components. Ultrafine tin-based alloy solder powder is mainly composed of tin and other metal elements, such as silver, copper, etc. Tin-based alloys generally have good electrical conductivity and are suitable for welding electronic components. Therefore, ultrafine tin-based alloy solder powder has been widely used in the electronics manufacturing industry. Solder powder production requires the use of a centrifugal liquid phase molding device. The tin-based alloy solder powder is heated and melted by an electric heating coil, then vaporized in contact with high-pressure water, and then cooled and solidified into solder powder particles.

[0003] A patent document with a publication number of CN218310863U in my country discloses a centrifugal atomization device for tin powder production, comprising a base, a chassis on the base, a water tank behind the chassis, a water inlet pipe on one side of the water tank, a water pump in the water tank, a melting chamber on the chassis, a cover plate on the melting chamber, a heating rod in the melting chamber, a pipe in the chassis, a water outlet pipe at one end of the pipe, a connecting frame in the chassis, a motor on the connecting frame, a rotating chamber at the output end of the motor, a through hole on the outside of the rotating chamber, a storage trough under the chassis, a discharge port under the storage trough, and a connecting seat on the side wall of the storage trough. In the utility model, the water pump is started, and the water pump conveys the cold water in the water tank to the pipeline, performs heat transfer on the heat in the chassis, discharges the hot water through the water outlet pipe, and the heat sink cools the tin powder, transfers the heat of the tin powder out of the storage tank, and reduces the subsequent cooling time of the tin powder; the patent document with the announcement number of CN 216758168 U in my country discloses that the utility model relates to the technical field of tin powder processing, and provides a centrifugal atomization tin powder spraying machine, including a processing tank and a driving motor, a cover body is arranged above the processing tank, and a feed port is arranged on one side of the top of the cover body, a driver is installed on the top of the cover body, an assembly structure is arranged outside the feed port, a middle bucket is arranged at the top of the processing tank, heating blocks are installed on both sides of the middle bucket, a stirring blade is installed at the output end of the feed port, and a stirring sheet is arranged outside the stirring blade. The utility model is provided with an assembly structure, wherein the convex ring 1 is located at the bottom end of the outside of the cover body, and the convex ring 2 is located at the top end of the outside of the processing tank, a thread on one side of the convex ring 1 penetrates the fastening screw, and a groove matched with the fastening screw is embedded on the outer wall of the convex ring 2. Therefore, after the processing tank and the cover body are completely aligned, the fastening screw is rotated, and one end of the fastening screw extends to the inside of the groove. Since one side of the fastening screw is circular, the fastening screw cannot be removed from above the convex ring 1.

[0004] This patent uses a water pump to inject high-pressure water into the processing tank. The vaporization of liquid water may cause internal high pressure, thereby affecting the safety and stability of the discharge of the suction powder particles. Summary of the invention

[0005] Based on this, it is necessary to provide a centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder in response to the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] A centrifugal liquid phase forming device for preparing ultrafine tin-based alloy welding powder, comprising a base, a reaction component, a melting component, a pressure relief component and a water tank, the reaction component comprising a processing tank fixedly arranged on the top of the base, a notch is opened in the middle of the processing tank, a connecting pipe is fixedly arranged on the inner side wall of the notch, a plurality of nozzles are plugged into the side wall of the connecting pipe, a supporting frame is fixedly arranged on the inner side wall of the notch near the bottom of the connecting pipe, a servo motor is fixedly arranged in the middle of the bottom end of the supporting frame, the output end of the servo motor passes through the supporting frame and a tray is fixedly arranged, a pressure sensor is fixedly arranged on the bottom end of the supporting frame near the servo motor, a discharge pipe is plugged into the bottom end of the processing tank, the melting component comprises a melting chamber fixedly arranged on the top of the processing tank, an end cover is rotatably connected to the top of the melting chamber, A heating coil is fixedly provided, and a crucible is rotatably connected to the inner wall of the melting chamber near the top of the heating coil. The water tank is fixedly provided on the base near the top of the processing tank. A booster pump is fixedly provided on the top of the water tank. Both ends of the booster pump are connected with the water tank and the connecting pipe in sequence. The pressure relief assembly includes a connecting seat plugged into the side wall of the processing tank, a bent pipe is fixedly provided at the end of the connecting seat, a mounting seat is fixedly provided at the top of the bent pipe, a climbing pipe is fixedly provided at the top of the mounting seat, a slot three is provided in the middle of the mounting seat, a sleeve is slidably connected inside the slot three, a counterweight block is fixedly provided at the bottom end of the sleeve, a slot four is provided at the inner bottom of the slot three, a slot five is provided at the inner bottom of the slot four for the counterweight block to be plugged in, the outer surface of the counterweight block is sleeved with slot five, and a plurality of slots six are provided at the bottom of the sleeve near the clamping ring.

[0008] Furthermore, the bottom end of the discharge pipe passes through the base and is equipped with an electromagnetic valve 1, the inner bottom of the slot 1 is provided with a funnel slot 1, and the discharge pipe passes through the processing tank and is connected with the funnel slot 1 and the slot 1 in sequence.

[0009] Furthermore, a cylinder is fixedly arranged on the side wall of the melting chamber, and an output end of the cylinder penetrates the melting chamber and is rotatably connected to a crank arm connecting rod, and the other end of the crank arm connecting rod is rotatably connected to the side wall of the top end of the crucible.

[0010] Furthermore, a second funnel groove is provided at the inner bottom of the melting chamber, a drainage tube is inserted in the middle of the bottom of the melting chamber, a second slot is provided at the top of the processing tank for the drainage tube to be inserted, the bottom end of the drainage tube faces the servo motor, and a protective layer is provided on the outer surface of the heating coil, and the protective layer is made of silicon carbide.

[0011] Furthermore, a second support frame is fixedly provided on the inner wall of the sleeve, and a filter element is clamped on the top end of the second support frame. The filter element is made of activated carbon filter cotton and is in a honeycomb shape, which improves the environmental friendliness of the emission.

[0012] Furthermore, the top end of the sleeve is threadedly connected to a limit cover, and the surface of the limit cover is provided with four notches 8, which are symmetrically distributed, thereby improving the stability of the filter element installation.

[0013] Furthermore, a sealing ring is clamped on the side wall of the clamp ring. The sealing ring is made of silicone material and is in a circular ring shape. A groove seven is provided on the side wall of the clamp ring for the sealing ring to clamp, thereby improving the sealing performance of the clamp ring.

[0014] Furthermore, a water inlet pipe is inserted into the side wall of the water tank, a replacement component is arranged at the top of the water tank, the replacement component includes a sealed tank fixedly arranged at the top of the water tank, the sealed tank is a steel structure for loading nitrogen, an air pump is fixedly arranged at the top of the sealed tank, a solenoid valve three is installed on the side wall of the melting chamber, and both ends of the air pump are connected with the solenoid valve three and the sealed tank in sequence to improve the quality of powder making.

[0015] A centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder comprises the following steps:

[0016] S1: Preparation work, turn the end cover to open the melting chamber and place the tin alloy raw material inside the crucible, then turn the end cover to close the melting chamber, open solenoid valve 1 and solenoid valve 3 in sequence, start the air pump to transport the nitrogen inside the sealed tank to the inside of the melting chamber and slot 1 through solenoid valve 3, replace the air with nitrogen and then close solenoid valve 1.

[0017] S2: Powder making, connect the power of the heating coil to heat and melt the tin alloy inside the heating coil, start the cylinder to drive the crucible to rotate, so as to pour the molten tin alloy into the inside of the second funnel slot and flow into the inside of the tray along the drainage pipe, start the booster pump to spray the clean water inside the water tank from several nozzles at high pressure, start the servo motor to drive the tray to rotate, generate vortex, so that the tin alloy solution is evenly contacted with the high-pressure water, the tin alloy solution is vaporized into particles along with water, and water is continuously injected, so that the liquid tin solidifies into tin powder particles.

[0018] S3: Pressure relief and discharging. The pressure sensor is used to monitor the internal air pressure of slot one. When the internal air pressure of slot one increases, the air pressure acts on the bottom end of the sleeve to push the sleeve to move upward along slot three, thereby connecting slot three and the elbow. The gas flows through slot six and is then discharged from the upper pipe. When the internal air pressure of slot one is balanced, the operator opens the solenoid valve one to discharge the tin powder aqueous solution for the next processing.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First, a centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder in the present invention is matched with a base, a reaction component, a melting component, a pressure relief component, a water tank and a booster pump. The pressure relief component includes a sleeve slidably connected inside the slot three. When the pressure inside the slot one increases, the air pressure acts on the bottom end of the counterweight block to lift the sleeve, thereby connecting the slot one and the climbing tube to discharge excess steam, thereby reducing the air pressure inside the slot one and improving the safety and stability of the discharge of tin powder particles.

[0021] Secondly, a centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder in the present invention is provided with a support frame 2 and a filter element, the filter element is made of activated carbon filter cotton in a honeycomb shape, and the filter element filters metal particles in high-pressure steam, thereby improving the environmental protection of gas emissions;

[0022] Thirdly, a centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder in the present invention is provided with a limit cover and a notch 8, and the limit cover is supported on the top of the filter element, thereby improving the stability of the filter element installation and the convenience of steam circulation; BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a side view stereoscopic structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the installation structure of the present invention in a top and side view;

[0026] Figure 4 It is a schematic diagram of the cross-sectional installation structure of the treatment tank of the present invention;

[0027] Figure 5 It is a schematic diagram of the cross-sectional plane installation structure of the pressure relief assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the sleeve of the present invention from a side view;

[0029] Figure 7 It is a schematic diagram of the cross-sectional installation structure of the sleeve of the present invention;

[0030] Figure 8 It is a schematic diagram of the front three-dimensional structure of the sleeve of the present invention;

[0031] Fig. 9 It is a schematic diagram of the cross-sectional installation structure of the melting component of the present invention.

[0032] The numbers in the figure are: 1, base; 2, reaction component; 201, processing tank; 202, slot one; 203, connecting pipe; 204, nozzle; 205, tray; 206, support frame one; 207, servo motor; 208, pressure sensor; 209, funnel slot one; 210, discharge pipe; 211, solenoid valve one; 212, slot two; 3, melting component; 301, melting chamber; 302, end cover; 303, solenoid valve three; 304, cylinder; 305, heating coil; 306, crucible; 307, protective layer; 308, funnel slot two; 309 , drainage pipe; 310, crank arm connecting rod; 4, pressure relief assembly; 401, connecting seat; 402, elbow pipe; 403, mounting seat; 404, climbing tube; 405, notch three; 406, sleeve; 407, counterweight; 408, notch four; 409, notch five; 410, snap ring; 411, sealing ring; 412, notch six; 413, notch seven; 414, support frame two; 415, filter element; 416, limit cover; 417, notch eight; 5, water tank; 6, replacement assembly; 601, sealing tank; 602, air pump; 7, booster pump; 8, water inlet pipe. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] refer to Figures 1 to 9A centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder is shown, comprising a base 1, a reaction component 2, a melting component 3, a pressure relief component 4 and a water tank 5. The reaction component 2 comprises a processing tank 201 fixedly mounted on the top of the base 1 by welding, a notch 202 is provided in the middle of the processing tank 201, a connecting pipe 203 is fixedly mounted on the inner side wall of the notch 202, a plurality of nozzles 204 are plugged into the side wall of the connecting pipe 203 for atomizing the sprayed high-pressure water, a support frame 206 is fixedly mounted on the inner side wall of the notch 202 near the bottom of the connecting pipe 203 by bolts, the support frame 206 is cross-shaped, and the top stability of the internal structure of the processing tank 201 is improved, a servo motor 207 is fixedly mounted in the middle of the bottom end of the support frame 206 by bolts, and the servo motor 207 is fixedly mounted in the middle of the bottom end of the support frame 206 by bolts. The outer surface of the servo motor 207 is covered with a protective cover for waterproofing and heat insulation, thereby protecting the servo motor 207. The output end of the servo motor 207 passes through the support frame 206 and is fixed with a tray 205 through a coupling. The tray 205 is made of silicon carbide for loading the tin alloy solution. The bottom of the support frame 206 near the servo motor 207 is fixed with a pressure sensor 208 through bolts for detecting air pressure. The bottom end of the processing tank 201 is plugged with a discharge pipe 210, and the bottom end of the discharge pipe 210 passes through the base 1 and is installed with an electromagnetic valve 211. The inner bottom of the notch 202 is provided with a funnel groove 209 to improve the convenience of water flow and tin powder sliding off. The discharge pipe 210 passes through the processing tank 201 and is connected with the funnel groove 209 and the notch 202 in sequence. Open the electromagnetic valve 211. 211 can discharge the tin powder and aqueous solution stored in the funnel tank 209. The melting component 3 includes a melting chamber 301 fixedly arranged on the top of the processing tank 201. The top of the melting chamber 301 is rotatably connected to an end cover 302. The surface of the end cover 302 is equipped with a lock to close the melting chamber 301. A heating coil 305 is fixedly arranged on the inner wall of the melting chamber 301. The outer surface of the heating coil 305 is covered with a protective layer 307. The protective layer 307 is made of silicon carbide. The heating coil 305 is spirally shaped and used to heat metal. The inner wall of the melting chamber 301 near the top of the heating coil 305 is rotatably connected to a crucible 306 for loading tin alloy. The bottom end of the crucible 306 is plugged into the middle of the heating coil 305. The power of the heating coil 305 is turned on to generate heat radiation. , thereby heating the molten tin alloy, the water tank 5 is fixedly arranged on the top of the base 1 near the processing tank 201, and a booster pump 7 is fixedly arranged on the top of the water tank 5. The two ends of the booster pump 7 are connected with the water tank 5 and the connecting pipe 203 in turn. Starting the booster pump 7 can transport the clean water stored in the water tank 5 to the inside of the connecting pipe 203, and then spray it out from a plurality of nozzles 204 after being atomized. Starting the servo motor 207 drives the tray 205 to rotate to generate eddy currents, so that the tin alloy solution is evenly contacted with the high-pressure water mist. The tin alloy solution is vaporized into particles with water, and water is continuously injected, and the liquid tin solidifies into tin powder particles. The pressure relief component 4 includes a connecting seat 401 plugged into the side wall of the processing tank 201, and a bend pipe 402 is fixedly arranged at the end of the connecting seat 401, and a mounting seat 403 is fixedly arranged at the top of the bend pipe 402.A climbing tube 404 is fixedly provided at the top of the mounting seat 403, a slot 3 405 is provided in the middle of the mounting seat 403, a sleeve 406 is slidably connected inside the slot 3 405, a counterweight 407 is fixedly provided at the bottom end of the sleeve 406, a slot 408 is provided at the inner bottom of the slot 3 405, a slot 5 409 is provided at the inner bottom of the slot 408 for the counterweight 407 to be inserted, the outer surface of the counterweight 407 is sleeved with the slot 5 409, and a plurality of slots are provided at the bottom end of the sleeve 406 near the clamping ring 410. There is a slot six 412, and the pressure sensor 208 can monitor the internal air pressure of slot one 202 in real time. When the internal air pressure of slot one 202 increases, the air pressure acts on the bottom end of sleeve 406 to push sleeve 406 to move upward along slot three 405, thereby connecting slot three 405 and elbow 402. The gas flows through slot six 412 and then is discharged from the ascending pipe 404. When the internal air pressure of slot one 202 is balanced, the operator opens the solenoid valve one 211 to discharge the tin powder aqueous solution for the next processing.

[0035] Furthermore, a cylinder 304 is fixedly provided on the side wall of the melting chamber 301, and the output end of the cylinder 304 passes through the melting chamber 301 and is rotatably connected to a crank arm connecting rod 310, and the other end of the crank arm connecting rod 310 is rotatably connected to the side wall at the top of the crucible 306, thereby improving the convenience of rotating and tipping the heating coil 305.

[0036] Furthermore, a second funnel groove 308 is provided at the inner bottom of the melting chamber 301 , a drainage tube 309 is inserted in the middle of the bottom of the melting chamber 301 , a second slot 212 is provided at the top of the processing tank 201 for the drainage tube 309 to be inserted, and the bottom end of the drainage tube 309 faces the servo motor 207 .

[0037] Furthermore, a second support frame 414 is fixedly provided on the inner wall of the sleeve 406, and a filter element 415 is clamped on the top of the second support frame 414. The filter element 415 is made of activated carbon filter cotton and is in a honeycomb shape. The filter element 415 filters metal particles in high-pressure steam, thereby improving the environmental friendliness of gas emissions.

[0038] Furthermore, the top end of the sleeve 406 is threadedly connected to a limit cover 416, and four notches eight 417 are provided on the surface of the limit cover 416, and the four notches eight 417 are symmetrically distributed. The limit cover 416 is supported on the top end of the filter element 415, thereby improving the stability of the installation of the filter element 415 and the convenience of steam circulation. When a large number of tin metal particles are attached to the filter element 415, the operator can remove the climbing tube 404, and then pull out the sleeve 406, thereby pulling out the inside of the notch three 405, and rotating the limit cover 416 can open the sleeve 406 to facilitate the replacement of the filter element 415.

[0039] Furthermore, a sealing ring 411 is clamped on the side wall of the clamping ring 410. The sealing ring 411 is made of silicone and is in a circular ring shape. A slot seven 413 is provided on the side wall of the clamping ring 410 for the sealing ring 411 to be clamped. The external dimensions of the sleeve 406, the clamping ring 410 and the counterweight block 407 are respectively matched with the internal dimensions of the slot three 405, the slot four 408 and the slot five 409, thereby improving the sealing of the installation of the counterweight block 407 and the clamping ring 410.

[0040] Furthermore, a water inlet pipe 8 is inserted into the side wall of the water tank 5, and a replacement component 6 is arranged at the top of the water tank 5. The replacement component 6 includes a sealed tank 601 fixedly arranged at the top of the water tank 5. The sealed tank 601 is a steel structure for loading nitrogen. An air pump 602 is fixedly arranged at the top of the sealed tank 601. A solenoid valve 303 is installed on the side wall of the melting chamber 301. Both ends of the air pump 602 are connected with the solenoid valve 303 and the sealed tank 601 in turn. The solenoid valve 211 and the solenoid valve 303 are opened in turn. Starting the air pump 602 can transport the nitrogen inside the sealed tank 601 to the inside of the melting chamber 301 and the slot 202 through the solenoid valve 303. The air inside the melting chamber 301 and the slot 202 is discharged from the discharge pipe 210, and the air is replaced by nitrogen. Then the solenoid valve 211 is closed, thereby avoiding air oxidation when the tin alloy is melted, thereby improving the quality of tin powder production.

[0041] A centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder comprises the following steps:

[0042] S1: Preparation work, turn the end cover 302 to open the melting chamber 301 and place the tin alloy raw material inside the crucible 306, then turn the end cover 302 to close the melting chamber 301, open the solenoid valve 1 211 and the solenoid valve 3 303 in turn, start the air pump 602 to transport the nitrogen inside the sealed tank 601 to the inside of the melting chamber 301 and the slot 1 202 through the solenoid valve 3 303, replace the air with nitrogen and then close the solenoid valve 1 211.

[0043] S2: Powder making, connect the power supply of the heating coil 305 to heat and melt the tin alloy inside the heating coil 305, start the cylinder 304 to drive the crucible 306 to rotate, so as to pour the molten tin alloy into the interior of the funnel trough 308 and flow into the interior of the tray 205 along the drainage pipe 309, start the booster pump 7 to spray the clean water inside the water tank 5 from the plurality of nozzles 204 at high pressure, start the servo motor 207 to drive the tray 205 to rotate, generate eddy current, so that the tin alloy solution is evenly contacted with the high-pressure water, and the tin alloy solution is vaporized into particles along with water, and water is continuously injected, so that the liquid tin solidifies into tin powder particles.

[0044] S3: Pressure relief and discharging. The pressure sensor 208 is used to monitor the internal air pressure of the slot 1 202. When the internal air pressure of the slot 1 202 increases, the air pressure acts on the bottom end of the sleeve 406 to push the sleeve 406 to move upward along the slot 3 405, thereby connecting the slot 3 405 and the elbow 402. The gas flows through the slot 6 412 and is then discharged from the ascending pipe 404. When the internal air pressure of the slot 1 202 is balanced, the operator opens the solenoid valve 1 211 to discharge the tin powder aqueous solution for the next processing.

[0045] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder, comprising a base (1), a reaction component (2), a melting component (3), a pressure relief component (4) and a water tank (5), characterized in that: The reaction component (2) comprises a processing tank (201) fixedly mounted on the top of the base (1); a notch (202) is provided in the middle of the processing tank (201); a connecting pipe (203) is fixedly mounted on the inner side wall of the notch (202); a plurality of nozzles (204) are plugged into the side wall of the connecting pipe (203); a support frame (206) is fixedly mounted on the inner side wall of the notch (202) below the connecting pipe (203); a servo motor (207) is fixedly mounted in the middle of the bottom end of the support frame (206); a tray (205) is fixedly mounted on the output end of the servo motor (207) penetrating the support frame (206); a pressure sensor (208) is fixedly mounted on the bottom end of the support frame (206) near the servo motor (207); and a discharge pipe (210) is plugged into the bottom end of the processing tank (201); The melting assembly (3) comprises a melting chamber (301) fixedly mounted on the top of the processing tank (201), the top of the melting chamber (301) is rotatably connected to an end cover (302), a heating coil (305) is fixedly mounted on the inner wall of the melting chamber (301), and a crucible (306) is rotatably connected to the inner wall of the melting chamber (301) above the heating coil (305); The water tank (5) is fixedly mounted on the top of the base (1) close to the treatment tank (201), and a booster pump (7) is fixedly mounted on the top of the water tank (5). Both ends of the booster pump (7) are connected to the water tank (5) and the connecting pipe (203) in sequence. The pressure relief assembly (4) comprises a connection seat (401) plugged into the side wall of the processing tank (201), a bend pipe (402) is fixedly provided at the end of the connection seat (401), a mounting seat (403) is fixedly provided at the top of the bend pipe (402), a climbing tube (404) is fixedly provided at the top of the mounting seat (403), a notch (405) is provided in the middle of the mounting seat (403), and a sleeve is slidably connected inside the notch (405). (406), a counterweight block (407) is fixedly provided at the bottom end of the sleeve (406), a slot four (408) is provided at the inner bottom of the slot three (405), a slot five (409) is provided at the inner bottom of the slot four (408) for the counterweight block (407) to be plugged in, the outer surface of the counterweight block (407) is sleeved with the slot five (409), and a plurality of slot six (412) are provided at the bottom end of the sleeve (406) near the retaining ring (410).

2. A centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder according to claim 1, characterized in that: The bottom end of the discharge pipe (210) passes through the base (1) and is equipped with an electromagnetic valve (211). The inner bottom of the slot (202) is provided with a funnel slot (209). The discharge pipe (210) passes through the processing tank (201) and is connected to the funnel slot (209) and the slot (202) in sequence.

3. The centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder according to claim 1, characterized in that: A cylinder (304) is fixedly provided on the side wall of the melting chamber (301), and an output end of the cylinder (304) penetrates the melting chamber (301) and is rotatably connected to a crank arm connecting rod (310), and the other end of the crank arm connecting rod (310) is rotatably connected to the side wall at the top end of the crucible (306).

4. The centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder according to claim 1, characterized in that: The inner bottom of the melting chamber (301) is provided with a second funnel groove (308), the middle of the bottom of the melting chamber (301) is plugged with a drainage tube (309), the top of the processing tank (201) is provided with a second slot (212) for plugging the drainage tube (309), the bottom end of the drainage tube (309) is directly opposite to the servo motor (207), and the outer surface of the heating coil (305) is provided with a protective layer (307), and the protective layer (307) is made of silicon carbide.

5. The centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder according to claim 1, characterized in that: A second support frame (414) is fixedly arranged on the inner side wall of the sleeve (406), and a filter element (415) is clamped on the top end of the second support frame (414). The filter element (415) is made of activated carbon filter cotton and is in a honeycomb shape.

6. The centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder according to claim 1, characterized in that: The top end of the sleeve (406) is threadedly connected to a limit cover (416), and the surface of the limit cover (416) is provided with four notches eight (417), and the four notches eight (417) are symmetrically distributed.

7. The centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder according to claim 1, characterized in that: A sealing ring (411) is clamped on the side wall of the clamping ring (410). The sealing ring (411) is made of silicone and is in a circular ring shape. A notch (413) is provided on the side wall of the clamping ring (410) for the sealing ring (411) to be clamped.

8. The centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder according to claim 1, characterized in that: A water inlet pipe (8) is inserted into the side wall of the water tank (5), and a replacement component (6) is arranged at the top of the water tank (5). The replacement component (6) includes a sealed tank (601) fixedly arranged at the top of the water tank (5). The sealed tank (601) is a steel structure for loading nitrogen. An air pump (602) is fixedly arranged at the top of the sealed tank (601). A solenoid valve three (303) is installed on the side wall of the melting chamber (301), and two ends of the air pump (602) are connected to the solenoid valve three (303) and the sealed tank (601) in sequence.

9. A centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder, using the centrifugal liquid phase forming device for preparing ultrafine tin-based alloy solder powder as described in any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Preparation work, rotating the end cover (302) to open the melting chamber (301) and place the tin alloy raw material inside the crucible (306), then rotating the end cover (302) to close the melting chamber (301), opening the solenoid valve 1 (211) and the solenoid valve 3 (303) in sequence, starting the air pump (602) to transport the nitrogen inside the sealed tank (601) to the inside of the melting chamber (301) and the slot 1 (202) through the solenoid valve 3 (303), displacing the air with the nitrogen, and then closing the solenoid valve 1 (211). S2: Powder making, the power supply of the heating coil (305) is turned on, so that the tin alloy inside the heating coil (305) is heated and melted, the cylinder (304) is started to drive the crucible (306) to rotate, so that the molten tin alloy is poured into the interior of the second funnel groove (308) and flows into the interior of the tray (205) along the drainage pipe (309), the booster pump (7) is started to spray the clean water inside the water tank (5) from a plurality of nozzles (204) at high pressure, the servo motor (207) is started to drive the tray (205) to rotate, and eddy current is generated, so that the tin alloy solution is evenly contacted with the high-pressure water, and the tin alloy solution is vaporized into particles along with water, and water is continuously injected, so that the liquid tin solidifies into tin powder particles. S3: Pressure relief and discharge. The pressure sensor (208) is used to monitor the internal air pressure of slot one (202). When the internal air pressure of slot one (202) increases, the air pressure acts on the bottom end of the sleeve (406) to push the sleeve (406) upward along slot three (405), thereby connecting slot three (405) and the elbow (402). The gas flows through slot six (412) and is then discharged from the ascending pipe (404). When the internal air pressure of slot one (202) is balanced, the operator opens the solenoid valve one (211) to discharge the tin powder aqueous solution for the next processing step.

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