A fully automatic vacuum atomization powder making device and processing technology

Abstract

The invention discloses a fully automatic vacuum atomization powder making device and a processing technology. The beneficial effects of the invention are as follows: the existing vacuum melting furnace and the vacuum atomization chamber are improved, the feeding raw materials inside the vacuum melting furnace are automatically sealed and fed, and at the same time, the atomization cooling structure inside the vacuum atomization chamber is changed by the gas flow rate, the gas flow range and the gas pressure, so that the metal liquid can be cut according to different needs, and the powder particle size can be further reduced. The powder forming degree is good and the atomization operation efficiency is high. The conventional gas atomization technology in the prior art is also insufficient. During the filling process in the vacuum melting furnace, it is difficult to ensure the vacuum degree in the furnace, thereby affecting the smelting quality. In addition, in the process of airflow breaking the metal liquid, the airflow energy is low, the atomization efficiency is low, and the cost of metal powder preparation is increased.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum atomization powder making, in particular to a full-automatic vacuum atomization powder making device and a processing technology. Background Art

[0002] Gas atomization powder making technology is the main method for producing metal and alloy powders. The principle of powder making is to use high-speed airflow to crush the liquid metal flow flowing out of the liquid guide tube into small droplets and solidify them into powder during the subsequent flight. Gas atomization powder has the advantages of controllable powder particle size, low oxygen content, and suitability for the production of a variety of metal and alloy powders. It has become the main direction for the preparation of high-performance and special alloy powders. With the emergence of new processes and new materials in powder metallurgy and the application of powder materials in chemical industry, electronic device preparation, surface engineering and military industries, the requirements for powder purity, fineness, sphericity, etc. are constantly increasing, which further promotes the gas atomization preparation technology of powders. With the development of technology, the principle of atomization is to crush the liquid metal flow into droplets and quickly condense it into powder through high-speed airflow. The metal powder prepared by atomization has the advantages of fine particle size, high sphericity and high purity. It is the main method for producing metal powder for 3D printing. The 3D printing powder metal prepared by it accounts for about 40% of the powder prepared by atomization. However, the atomization technology also has its shortcomings. During the filling process in the vacuum melting furnace, it is difficult to ensure the vacuum degree in the furnace, which affects the smelting quality. In the process of airflow breaking the metal liquid, the airflow energy is low and the atomization efficiency is low, which increases the cost of metal powder preparation. In view of this, in-depth research was conducted on the above-mentioned problems, and this case was generated. Summary of the invention

[0003] To achieve the above-mentioned purpose, the technical solution of the present invention is: a fully automatic vacuum atomization powder making device, comprising: a vacuum melting furnace, a vacuum atomization chamber and an auxiliary bracket, wherein the auxiliary bracket is installed on the vacuum atomization chamber, the vacuum melting furnace is installed on the auxiliary bracket, a sealed feeding structure is installed on the vacuum melting furnace, a heating and drainage structure is installed inside the vacuum melting furnace, an atomization and cooling structure is installed in the vacuum atomization chamber, and a vacuum structure is installed inside the vacuum melting furnace, the vacuum atomization chamber and the sealed feeding structure;

[0004] The atomizing cooling structure comprises: a cooling drainage pipe, a concave expansion ring, a plurality of arc telescopic blocks, a plurality of convex telescopic blocks, a plurality of sleeve springs, a plurality of magnet blocks, two pairs of circular electromagnets, two pairs of resistance regulators, a pair of sealed flexible inner tubes and a cooling assembly;

[0005] The cooling and drainage tube is inserted into the vacuum atomization chamber, the concave expansion ring is installed on the cooling and drainage tube, the cooling and drainage tube and the concave expansion ring block are respectively provided with a plurality of I-shaped expansion grooves, a plurality of convex expansion blocks are respectively movably inserted into the inner sides of a plurality of I-shaped expansion grooves, a plurality of circular arc expansion blocks are respectively movably inserted into the inner sides of a plurality of I-shaped expansion grooves, and a plurality of circular arc expansion blocks are respectively connected to a plurality of convex expansion blocks, a plurality of sleeve springs are respectively sleeved on a plurality of convex expansion blocks, and if The plurality of set springs are respectively connected to the inner sides of a plurality of the I-shaped expansion slots, a plurality of the magnet blocks are respectively installed on a plurality of the convex expansion blocks, two pairs of the annular electromagnets are respectively installed on the cooling drainage tube and the concave expansion ring, two pairs of the resistance regulators are respectively installed on the two pairs of the annular electromagnets, a pair of the sealed flexible inner tubes are respectively installed on the inner sides of the cooling drainage tube and the concave expansion ring, and a pair of the sealed flexible inner tubes are respectively connected to a plurality of the arc expansion blocks, and the cooling assembly is set on the cooling drainage tube.

[0006] Preferably, the sealing feeding structure comprises: a plurality of concave limiting ring blocks, a plurality of rotating discs, a plurality of rotating driving machines, a plurality of limiting discs, a plurality of raw material boxes, a plurality of convex drainage limiting pipes, a plurality of sealing feeding hydraulic push rods, a plurality of Japanese-type sealing feeding blocks, a plurality of feeding shafts, a plurality of feeding plates and a plurality of Y-shaped drainage feeding pipes;

[0007] Several raw material boxes are evenly installed on the auxiliary bracket, several concave limiting ring blocks are respectively installed on the inner sides of several raw material boxes, several rotating discs are respectively movably inserted on the inner sides of several concave limiting ring blocks, several rotating drive machines are respectively installed on the inner sides of several raw material boxes, several limiting discs are respectively installed on several raw material boxes, and several limiting discs are respectively sleeved on the driving ends of several rotating drive machines through bearings, several convex drainage limiting tubes are respectively inserted on several raw material boxes, and several convex drainage limiting tubes are respectively connected to On several of the limiting discs, several of the sealed feeding hydraulic push rods are respectively installed on the inner sides of several of the convex drainage limiting tubes, several of the day-type sealed feeding blocks are respectively movably inserted on the inner sides of several of the convex drainage limiting tubes, and several of the day-type sealed feeding blocks are respectively connected to the pushing ends of several of the sealed feeding hydraulic push rods, several of the feeding plates are respectively movably installed on several of the day-type sealed feeding blocks through the feeding shafts, several of the Y-type drainage feeding tubes are respectively inserted on several of the convex drainage limiting tubes, and several of the Y-type drainage feeding tubes are evenly inserted on the vacuum melting furnace.

[0008] Preferably, the heating and drainage structure comprises: a heating crucible, a coiled electromagnetic heating tube, a plurality of heating metal rods, a drainage valve tube and a nozzle;

[0009] The heating crucible is installed on the inner side of the vacuum melting furnace, the coiled electromagnetic heating tube is installed on the inner side of the vacuum melting furnace, a plurality of heating metal rods are evenly inserted on the heating crucible, the drainage valve tube is inserted on the heating crucible, and the drainage valve tube is connected to the vacuum atomization chamber, and the nozzle is installed on the drainage valve tube.

[0010] Preferably, the vacuum structure comprises: a mesh shunt pipe, a circular drainage pipe, an L-shaped exhaust pipe, a pair of drainage exhaust pipes, three drainage air inlet pipes, a negative pressure air pump, a collection tank, a plurality of vacuum pressure sensors, a pressure pump and a high-pressure nitrogen bottle group;

[0011] The mesh diverter pipe is connected to several of the raw material boxes, the annular drainage pipe is installed on the outside of several of the raw material boxes, the L-shaped exhaust pipe is connected to the mesh diverter pipe, a pair of the drainage and exhaust pipes are respectively inserted into the vacuum melting furnace and the vacuum atomization chamber, the L-shaped exhaust pipe and a pair of the drainage and exhaust pipes are connected to the negative pressure exhaust pump, the negative pressure exhaust pump is connected to the collecting tank, the three drainage inlet pipes are respectively inserted into the annular drainage pipe, the vacuum melting furnace and the vacuum atomization chamber, several of the vacuum pressure sensors are respectively connected to several raw material boxes, the vacuum melting furnace and the vacuum atomization chamber, the high-pressure nitrogen bottle group is connected to the three drainage inlet pipes, and the booster pump is installed on the vacuum melting furnace.

[0012] Preferably, the cooling assembly comprises: a set annular tube, a cooling box, a cooler, a radiator and a cooling liquid pump;

[0013] The sleeved annular tube is sleeved on the cooling drainage tube, the cooler is installed on the inner side of the cooling box, the radiator is installed on the outer side of the cooling box, the cooling liquid pump is installed on the cooling box, and the cooling liquid pump is connected to the sleeved annular tube.

[0014] Preferably, a temperature sensor is provided on the inner side of the cooling and drainage pipe, and flow sensors are provided on the concave expansion rings.

[0015] Preferably, a coiled centrifugal blade is provided inside the vacuum atomization chamber.

[0016] Preferably, a cooling drainage port is provided on the coiled centrifugal blade, and a cooling fan is provided on the cooling drainage port.

[0017] A fully automatic vacuum atomization powder making process, comprising the following operating steps: step S1, raw material preparation; step S2, equipment pre-start; step S3, automatic filling; step S4, raw material smelting; step S5, atomization powder making and step S6, powder collection;

[0018] The step S1: selecting raw material blocks of metal powder to be processed, and sequentially loading the raw material blocks into the inner sides of a plurality of raw material boxes;

[0019] The step S2: pre-vacuuming the vacuum melting furnace and the vacuum atomization chamber, then filling them with argon or helium protective gas, and pre-vacuuming the intermediate chamber;

[0020] Step S3: automatically putting the raw material block into the vacuum melting furnace through the sealed feeding structure;

[0021] Step S4: starting the heating and drainage structure in the vacuum melting furnace to melt the raw materials, and the molten metal after melting enters the nozzle through the drainage pipe;

[0022] The step S5: starting the pressure pump to supply air to the nozzle position, and cooperating with the vacuum atomization chamber to perform a gas atomization powder making operation;

[0023] The step S6: after the powder is cooled, it is collected by multiple cyclones.

[0024] In step S5, the wind speed and range of the cooling wind are adjusted by the atomizing cooling structure, so as to achieve a size of the expanded metal powder within a certain range.

[0025] The fully automatic vacuum atomization powder making device and processing technology produced by the technical solution of the present invention are used to improve the existing vacuum melting furnace and vacuum atomization chamber, and the feeding raw materials on the inside of the vacuum melting furnace are automatically sealed and fed. At the same time, the atomization cooling structure on the inside of the vacuum atomization chamber is changed by the gas flow rate, the gas flow range and the gas pressure, so that the metal liquid can be cut according to different needs, and the powder particle size can be further reduced. The powder forming degree is good and the atomization operation efficiency is high. The conventional gas atomization technology in the prior art also has shortcomings. During the filling process in the vacuum melting furnace, it is difficult to ensure the vacuum degree in the furnace, which affects the smelting quality. In addition, in the process of airflow breaking the metal liquid, the airflow energy is low, the atomization efficiency is low, and the cost of metal powder preparation is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main structure of a fully automatic vacuum atomization powder making device and a processing technology described in the present invention.

[0027] Figure 2The figure is a side structural schematic diagram of a fully automatic vacuum atomization powder making device and a processing technology described in the present invention.

[0028] Figure 3 The figure is a top view structural schematic diagram of a fully automatic vacuum atomization powder making device and a processing technology described in the present invention.

[0029] Figure 4 The diagram is a top view of the partial structure of a fully automatic vacuum atomization powder making device and a processing technology described in the present invention.

[0030] Figure 5 for Figure 1 A partial enlarged view of “A” in the figure.

[0031] Figure 6 for Figure 2 A partial enlarged view of "B".

[0032] In the figure: 1. vacuum melting furnace; 2. vacuum atomization chamber; 3. auxiliary support; 4. cooling drainage pipe; 5. concave expansion ring; 6. arc expansion block; 7. convex expansion block; 8. set spring; 9. magnet block; 10. ring electromagnet; 11. resistance regulator; 12. sealing flexible inner tube; 13. concave limit ring block; 14. rotating disc; 15. rotating drive machine; 16. limit disc; 17. raw material box; 18. convex drainage limit pipe; 19. sealed feeding hydraulic push rod; 20. Japanese type sealed feeding block; 21. Material shaft; 22. Feeding plate; 23. Y-type drainage feeding tube; 24. Heating crucible; 25. Coiled electromagnetic heating tube; 26. Heating metal rod; 27. Drainage valve tube; 28. Nozzle; 29. ​​Mesh diversion tube; 30. Annular drainage tube; 31. L-type exhaust pipe; 32. Drainage exhaust pipe; 33. Drainage intake pipe; 34. Negative pressure suction pump; 35. Collection tank; 36. Pressure pump; 37. High-pressure nitrogen bottle group; 38. Set of annular tube; 39. Cooling box; 40. Cooler; 41. Radiator; 42. Cooling liquid pump. DETAILED DESCRIPTION

[0033] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0034] Example

[0035] like Figure 1-6As shown, the auxiliary bracket 3 is installed on the vacuum atomization chamber 2, the vacuum melting furnace 1 is installed on the auxiliary bracket 3, a sealed feeding structure is installed on the vacuum melting furnace 1, a heating and drainage structure is installed on the inner side of the vacuum melting furnace 1, an atomization cooling structure is installed in the vacuum atomization chamber 2, and a vacuum structure is installed on the inner side of the vacuum melting furnace 1, the vacuum atomization chamber 2 and the sealed feeding structure;

[0036] Specifically, the atomization cooling structure includes: a cooling drainage tube 4, a concave expansion ring 5, a plurality of arc telescopic blocks 6, a plurality of convex telescopic blocks 7, a plurality of set springs 8, a plurality of magnet blocks 9, two pairs of circular electromagnets 10, two pairs of resistance adjusters 11, a pair of sealed flexible inner tubes 12 and a cooling component.

[0037] Specifically, the cooling and drainage tube 4 is inserted into the vacuum atomization chamber 2, the concave expansion ring 5 is installed on the cooling and drainage tube 4, and the cooling and drainage tube 4 and the concave expansion ring 5 are respectively provided with a plurality of I-shaped telescopic grooves, a plurality of convex telescopic blocks 7 are respectively movably inserted into the inner sides of a plurality of I-shaped telescopic grooves, a plurality of arc telescopic blocks 6 are respectively movably inserted into the inner sides of a plurality of I-shaped telescopic grooves, and a plurality of arc telescopic blocks 6 are respectively connected to a plurality of convex telescopic blocks 7, a plurality of sleeve springs 8 are respectively sleeved on a plurality of convex telescopic blocks 7, and a plurality of The set springs 8 are respectively connected to the inner sides of several of the I-shaped expansion slots, several of the magnet blocks 9 are respectively installed on several of the convex expansion blocks 7, two pairs of the circular electromagnets 10 are respectively installed on the cooling drainage pipe 4 and the concave expansion ring 5, two pairs of the resistance regulators 11 are respectively installed on the two pairs of the circular electromagnets 10, a pair of the sealed flexible inner tubes 12 are respectively installed on the inner sides of the cooling drainage pipe 4 and the concave expansion ring 5, and a pair of the sealed flexible inner tubes 12 are respectively connected to several of the circular arc expansion blocks 6, and the cooling assembly is set on the cooling drainage pipe 4.

[0038] When in use, the raw materials are quantitatively loaded through the sealed loading structure on the vacuum melting furnace 1, and the raw materials are inductively heated by the heating and drainage structure inside the vacuum melting furnace 1, so that the metal is hot-melted into liquid and drained to the inside of the vacuum atomization chamber 2. The vacuum melting furnace 1, the vacuum atomization chamber 2 and the raw material boxes 17 are vacuum-treated through the vacuum structure, and the oxygen in the air is drained out, and the inert gas such as nitrogen is drained at the same time. By draining the inert gas to the inside of the cooling drainage pipe 4, the cooling The component cools the inert gas inside the cooling drainage concept, and at the same time adjusts the current on the two pairs of circular electromagnets 10 through two pairs of resistor regulators 11, so as to change the magnetism of the two pairs of circular electromagnets 10, so as to achieve magnetic repulsion of several magnet blocks 9 according to different magnetism, so that several magnet blocks 9 respectively drive the convex telescopic blocks 7 thereon, so that several convex telescopic blocks 7 respectively extend and retract along several I-shaped telescopic grooves, and at the same time several convex telescopic blocks 7 squeeze several set springs 8, The plurality of set springs 8 are elastically deformed, and the positions of the plurality of convex telescopic blocks 7 are changed by changing the magnetism of the two pairs of circular electromagnets 10. At the same time, the plurality of convex telescopic blocks 7 drive the arc telescopic blocks 6 thereon respectively, and the plurality of arc telescopic blocks 6 drive the pair of sealing flexible inner tubes 12 thereon respectively, so as to change the inner diameter of the cooling drainage tube 4 and the inner side of the concave expansion ring 5. The Bernoulli principle is used (the Bernoulli principle states that in the same fluid, the flow rate is large and the pressure is small; the flow rate is small and the pressure is large. The fluid will Automatically flows from high pressure to low pressure. When passing through the three-way pipe, the low-speed water flows to the high-speed air. The water is torn into small drops by the high-speed air (imagine the water flowing out of the faucet, which is slow at first and is a water column; but then the speed gradually increases and becomes drops). These small water droplets become mist after being sprayed out), so as to change the flow rate, pressure and spraying range of the water flow according to different needs, so as to achieve cutting and cooling of the metal liquid, and through different air pressures and different ranges, the metal liquid can be cut into spheres.

[0039] like Figure 1-6 As shown, the sealing feeding structure comprises: a plurality of concave limiting ring blocks 13, a plurality of rotating discs 14, a plurality of rotating driving machines 15, a plurality of limiting discs 16, a plurality of raw material boxes 17, a plurality of convex drainage limiting pipes 18, a plurality of sealing feeding hydraulic push rods 19, a plurality of Japanese-type sealing feeding blocks 20, a plurality of feeding shafts 21, a plurality of feeding plates 22 and a plurality of Y-shaped drainage feeding pipes 23;

[0040] Specifically, a plurality of the raw material boxes 17 are evenly mounted on the auxiliary bracket 3, a plurality of the concave limiting ring blocks 13 are respectively mounted on the inner sides of a plurality of the raw material boxes 17, a plurality of the rotating discs 14 are respectively movably inserted on the inner sides of a plurality of the concave limiting ring blocks 13, a plurality of the rotating drive machines 15 are respectively mounted on the inner sides of a plurality of the raw material boxes 17, a plurality of the limiting discs 16 are respectively mounted on a plurality of the raw material boxes 17, and a plurality of the limiting discs 16 are respectively mounted on the driving ends of a plurality of the rotating drive machines 15 through bearing sleeves, a plurality of the convex drainage limiting tubes 18 are respectively inserted on a plurality of the raw material boxes 17, and a plurality of the convex drainage limiting tubes 18 are respectively It is connected to several of the limiting discs 16, several of the sealing feeding hydraulic push rods 19 are respectively installed on the inner sides of several of the convex drainage limiting tubes 18, several of the day-type sealing feeding blocks 20 are respectively movably inserted on the inner sides of several of the convex drainage limiting tubes 18, and several of the day-type sealing feeding blocks 20 are respectively connected to the pushing ends of several of the sealing feeding hydraulic push rods 19, several of the feeding plates 22 are respectively movably installed on several of the day-type sealing feeding blocks 20 through the feeding shafts 21, several of the Y-type drainage feeding pipes 23 are respectively inserted on several of the convex drainage limiting tubes 18, and several of the Y-type drainage feeding pipes 23 are evenly inserted on the vacuum melting furnace 1.

[0041] When in use, several kinds of raw materials are placed on the inner sides of several drainage boxes respectively, and the rotary driving machine 15 is operated to drive the rotating disc 14 on the driving end of the rotary driving machine 15, so that the rotating disc 14 rotates horizontally along the inner side of the concave limiting circular ring block 13, and part of the raw materials fall onto the limiting disc 16 through the holes on the rotating disc 14, and the rotating rotating disc 14 drives the raw materials thereon to rotate, so as to achieve the purpose of draining the raw materials to the holes on the limiting disc 16, thereby draining the raw materials to the inner side of the convex drainage limiting tube 18, and thereby draining the raw materials to the inner side of the day-type sealing feeding block 20, and the sealing feeding hydraulic push rods 19 are extended and retracted to drive the pushing ends of several sealing feeding hydraulic push rods 19 to move upward. The convex drainage limiting tube 18 is used to drain the raw material to the inner side of the Y-shaped drainage feeding tube 23, and the sealing feeding hydraulic push rod 19 is contracted to drive the day-type sealing feeding block 20, so that the overturned feeding plate 22 is rotated along the feeding shaft 21. Similarly, the other feeding plate 22 on the day-type sealing feeding block 20 is rotated along the feeding shaft 21, so as to drain the other raw material on the day-type sealing feeding block 20, and drain the raw material to the inner side of the vacuum melting furnace 1 through the Y-shaped drainage feeding tube 23, so as to achieve the effect of sealing and stabilizing the feeding.

[0042] like Figure 1-6 As shown, the heating and drainage structure includes: a heating crucible 24, a coiled electromagnetic heating tube 25, a plurality of heating metal rods 26, a drainage valve tube 27 and a nozzle 28;

[0043] Specifically, the heating crucible 24 is installed on the inner side of the vacuum melting furnace 1, the coiled electromagnetic heating tube is installed on the inner side of the vacuum melting furnace 1, a plurality of heating metal rods 26 are evenly inserted on the heating crucible 24, the drainage valve tube 27 is inserted on the heating crucible 24, and the drainage valve tube 27 is connected to the vacuum atomization chamber 2, and the nozzle 28 is installed on the drainage valve tube 27.

[0044] When in use, the coiled electromagnetic heating tube 25 is used to electromagnetically heat the plurality of heating metal rods 26, and the plurality of heating metal rods 26 drain the heat to the inner side of the heating crucible 24, thereby heating the heating crucible 24, and the metal is drained to the inner side of the nozzle 28 by opening the drainage valve tube 27, thereby draining the hot-melt metal liquid to the inner side of the vacuum atomization chamber 2.

[0045] like Figure 1-6 As shown, the vacuum structure includes: a mesh shunt pipe 29, a circular drainage pipe 30, an L-shaped exhaust pipe 31, a pair of drainage exhaust pipes 32, three drainage air intake pipes 33, a negative pressure air pump 34, a collection tank 35, a plurality of vacuum pressure sensors, a pressure pump 36 and a high-pressure nitrogen bottle group 37;

[0046] Specifically, the mesh shunt pipe 29 is connected to a plurality of the raw material boxes 17, the annular drainage pipe 30 is installed on the outside of a plurality of the raw material boxes 17, the L-shaped exhaust pipe 31 is connected to the mesh shunt pipe 29, a pair of the drainage exhaust pipes 32 are respectively inserted into the vacuum melting furnace 1 and the vacuum atomization chamber 2, the L-shaped exhaust pipe 31 and the pair of the drainage exhaust pipes 32 are connected to the negative pressure suction pump 34, the negative pressure suction pump 34 is connected to the collecting tank 35, the three drainage air inlet pipes 33 are respectively inserted into the annular drainage pipe 30, the vacuum melting furnace 1 and the vacuum atomization chamber 2, a plurality of the vacuum pressure sensors are respectively connected to a plurality of the raw material boxes 17, the vacuum melting furnace 1 and the vacuum atomization chamber 2, the high-pressure nitrogen bottle group 37 is connected to the three drainage air inlet pipes 33, and the booster pump 36 is installed on the vacuum melting furnace 1;

[0047] When in use, the gas inside a pair of drainage and exhaust pipes 32 and the L-shaped exhaust pipe 31 is drained to the inside of the collection tank 35 through the negative pressure suction pump 34, and the gas inside the mesh diversion pipe 29 is negatively pumped through the L-shaped exhaust pipe 31. At the same time, the gas inside several raw material boxes 17 is drained to the inside of the collection tank 35 through the mesh diversion pipe 29. Then, the high-pressure nitrogen bottle group 37 is used to drain the gas to the three drainage inlet pipes 33 through the pressure pump 36. The gas is respectively drained to the inside of the vacuum melting furnace 1, the vacuum atomization chamber 2 and the circular drainage pipe 30 through the three drainage inlet pipes 33, and the gas is drained to the inside of several raw material boxes 17 through the circular drainage pipe 30.

[0048] like Figure 1-6 As shown, the cooling assembly includes: a set annular tube 38, a cooling box 39, a cooler 40, a radiator 41 and a cooling liquid pump 42;

[0049] Specifically, the sleeve annular tube 38 is sleeved on the cooling drainage tube 4, the cooler 40 is installed on the inner side of the cooling box 39, the radiator 41 is installed on the outer side of the cooling box 39, the cooling liquid pump 42 is installed on the cooling box 39, and the cooling liquid pump 42 is connected to the sleeve annular tube 38.

[0050] When in use, the cooling box 39 is cooled by the cooler 40, the heat absorbed by the cooler 40 is dissipated through the radiator 41, and the liquid inside the cooling box 39 is drained to the inside of the sleeve annular tube 38 by the cooling liquid pump 42, and the inside of the cooling drainage tube 4 inside the sleeve annular tube 38 is cooled.

[0051] As a preferred solution, further, a temperature sensor is provided on the inner side of the cooling and drainage pipe 4 , and a flow sensor is provided on the concave expansion ring 5 .

[0052] As a preferred solution, further, a coiled centrifugal blade is provided inside the vacuum atomization chamber 2 .

[0053] As a preferred solution, further, a cooling drainage port is provided on the coiled centrifugal blade, and a cooling fan is provided on the cooling drainage port.

[0054] A fully automatic vacuum atomization powder making process, comprising the following operating steps: step S1, raw material preparation; step S2, equipment pre-start; step S3, automatic filling; step S4, raw material smelting; step S5, atomization powder making and step S6, powder collection;

[0055] Step S1: selecting raw material blocks of metal powder to be processed, and sequentially loading the raw material blocks into the inner sides of a plurality of raw material boxes 17;

[0056] The step S2: pre-vacuuming the vacuum melting furnace 1 and the vacuum atomization chamber 2, then filling with argon or helium protective gas, and pre-vacuuming the intermediate chamber;

[0057] Step S3: automatically putting the raw material block into the vacuum melting furnace 1 through the sealed feeding structure;

[0058] Step S4: starting the heating and drainage structure in the vacuum melting furnace 1 to melt the raw material, and the molten metal after melting enters the nozzle 28 through the drainage pipe;

[0059] The step S5: starting the pressure pump 36 to supply air to the nozzle 28, and cooperating with the vacuum atomization chamber 2 to perform gas atomization powder making operation;

[0060] The step S6: after the powder is cooled, it is collected by multiple cyclones.

[0061] In step S5, the wind speed and range of the cooling wind are adjusted by the atomizing cooling structure, so as to achieve a size of the expanded metal powder within a certain range.

[0062] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A fully automatic vacuum atomization powder making device, comprising: a vacuum melting furnace, a vacuum atomization chamber and an auxiliary support, characterized in that: The auxiliary bracket is mounted on the vacuum atomization chamber, the vacuum melting furnace is mounted on the auxiliary bracket, a sealed feeding structure is mounted on the vacuum melting furnace, a heating and drainage structure is mounted inside the vacuum melting furnace, an atomization and cooling structure is mounted inside the vacuum atomization chamber, and a vacuum structure is mounted inside the vacuum melting furnace, the vacuum atomization chamber and the sealed feeding structure; The atomizing cooling structure comprises: a cooling drainage pipe, a concave expansion ring, a plurality of arc telescopic blocks, a plurality of convex telescopic blocks, a plurality of sleeve springs, a plurality of magnet blocks, two pairs of circular electromagnets, two pairs of resistance regulators, a pair of sealed flexible inner tubes and a cooling assembly; The cooling and drainage tube is inserted into the vacuum atomization chamber, the concave expansion ring is installed on the cooling and drainage tube, the cooling and drainage tube and the concave expansion ring block are respectively provided with a plurality of I-shaped expansion grooves, a plurality of convex expansion blocks are respectively movably inserted into the inner sides of a plurality of I-shaped expansion grooves, a plurality of arc expansion blocks are respectively movably inserted into the inner sides of a plurality of I-shaped expansion grooves, and a plurality of arc expansion blocks are respectively connected to a plurality of convex expansion blocks, a plurality of sleeve springs are respectively sleeved on a plurality of convex expansion blocks, and if The plurality of set springs are respectively connected to the inner sides of a plurality of the I-shaped expansion slots, a plurality of the magnet blocks are respectively installed on a plurality of the convex expansion blocks, two pairs of the annular electromagnets are respectively installed on the cooling drainage tube and the concave expansion ring, two pairs of the resistance regulators are respectively installed on the two pairs of the annular electromagnets, a pair of the sealed flexible inner tubes are respectively installed on the inner sides of the cooling drainage tube and the concave expansion ring, and a pair of the sealed flexible inner tubes are respectively connected to a plurality of the arc expansion blocks, and the cooling assembly is set on the cooling drainage tube.

2. A fully automatic vacuum atomization powder making device according to claim 1, characterized in that: The sealing feeding structure comprises: a plurality of concave limiting circular ring blocks, a plurality of rotating discs, a plurality of rotating driving machines, a plurality of limiting discs, a plurality of raw material boxes, a plurality of convex drainage limiting pipes, a plurality of sealing feeding hydraulic push rods, a plurality of Japanese-type sealing feeding blocks, a plurality of feeding shafts, a plurality of feeding plates and a plurality of Y-shaped drainage feeding pipes; Several raw material boxes are evenly installed on the auxiliary bracket, several concave limiting ring blocks are respectively installed on the inner sides of several raw material boxes, several rotating discs are respectively movably inserted on the inner sides of several concave limiting ring blocks, several rotating drive machines are respectively installed on the inner sides of several raw material boxes, several limiting discs are respectively installed on several raw material boxes, and several limiting discs are respectively sleeved on the driving ends of several rotating drive machines through bearings, several convex drainage limiting tubes are respectively inserted on several raw material boxes, and several convex drainage limiting tubes are respectively connected to On several of the limiting discs, several of the sealed feeding hydraulic push rods are respectively installed on the inner sides of several of the convex drainage limiting tubes, several of the day-type sealed feeding blocks are respectively movably inserted on the inner sides of several of the convex drainage limiting tubes, and several of the day-type sealed feeding blocks are respectively connected to the pushing ends of several of the sealed feeding hydraulic push rods, several of the feeding plates are respectively movably installed on several of the day-type sealed feeding blocks through the feeding shafts, several of the Y-type drainage feeding tubes are respectively inserted on several of the convex drainage limiting tubes, and several of the Y-type drainage feeding tubes are evenly inserted on the vacuum melting furnace.

3. A fully automatic vacuum atomization powder making device according to claim 2, characterized in that: The heating and drainage structure comprises: a heating crucible, a coiled electromagnetic heating tube, a plurality of heating metal rods, a drainage valve tube and a nozzle; The heating crucible is installed on the inner side of the vacuum melting furnace, the coiled electromagnetic heating tube is installed on the inner side of the vacuum melting furnace, a plurality of heating metal rods are evenly inserted on the heating crucible, the drainage valve tube is inserted on the heating crucible, and the drainage valve tube is connected to the vacuum atomization chamber, and the nozzle is installed on the drainage valve tube.

4. A fully automatic vacuum atomization powder making device according to claim 3, characterized in that: The vacuum structure includes: a mesh shunt pipe, a circular drainage pipe, an L-shaped exhaust pipe, a pair of drainage exhaust pipes, three drainage air inlet pipes, a negative pressure air pump, a collection tank, a plurality of vacuum pressure sensors, a pressure pump and a high-pressure nitrogen bottle group; The mesh diverter pipe is connected to several of the raw material boxes, the annular drainage pipe is installed on the outside of several of the raw material boxes, the L-shaped exhaust pipe is connected to the mesh diverter pipe, a pair of the drainage and exhaust pipes are respectively inserted into the vacuum melting furnace and the vacuum atomization chamber, the L-shaped exhaust pipe and a pair of the drainage and exhaust pipes are connected to the negative pressure exhaust pump, the negative pressure exhaust pump is connected to the collecting tank, the three drainage inlet pipes are respectively inserted into the annular drainage pipe, the vacuum melting furnace and the vacuum atomization chamber, several of the vacuum pressure sensors are respectively connected to several raw material boxes, the vacuum melting furnace and the vacuum atomization chamber, the high-pressure nitrogen bottle group is connected to the three drainage inlet pipes, and the booster pump is installed on the vacuum melting furnace.

5. A fully automatic vacuum atomization powder making device according to claim 4, characterized in that: The cooling assembly comprises: a set annular tube, a cooling box, a cooler, a radiator and a cooling liquid pump; The sleeved annular tube is sleeved on the cooling drainage tube, the cooler is installed on the inner side of the cooling box, the radiator is installed on the outer side of the cooling box, the cooling liquid pump is installed on the cooling box, and the cooling liquid pump is connected to the sleeved annular tube.

6. A fully automatic vacuum atomization powder making device according to claim 5, characterized in that: A temperature sensor is arranged on the inner side of the cooling and drainage pipe, and flow sensors are arranged on the concave expansion rings.

7. A fully automatic vacuum atomization powder making device according to claim 6, characterized in that: The inner side of the vacuum atomization chamber is provided with a coiled centrifugal blade.

8. The fully automatic vacuum atomization powder making device according to claim 7, characterized in that: The coiled centrifugal blade is provided with a cooling drainage port, and a cooling fan is arranged on the cooling drainage port.

9. The processing technology of a fully automatic vacuum atomization powder making device according to claim 8 is characterized in that: The method comprises the following steps: step S1, raw material preparation; step S2, equipment pre-start; step S3, automatic filling; step S4, raw material smelting; step S5, atomization powder making; and step S6, powder collection; The step S1: selecting raw material blocks of metal powder to be processed, and sequentially loading the raw material blocks into the inner sides of a plurality of raw material boxes; The step S2: pre-vacuuming the vacuum melting furnace and the vacuum atomization chamber, then filling them with argon or helium protective gas, and pre-vacuuming the intermediate chamber; Step S3: automatically putting the raw material block into the vacuum melting furnace through the sealed feeding structure; Step S4: starting the heating and drainage structure in the vacuum melting furnace to melt the raw materials, and the molten metal after melting enters the nozzle through the drainage pipe; The step S5: starting the pressure pump to supply air to the nozzle position, and cooperating with the vacuum atomization chamber to perform a gas atomization powder making operation; The step S6: after the powder is cooled, it is collected by multiple cyclones.

10. The processing technology of the fully automatic vacuum atomization powder making device according to claim 9 is characterized in that: In step S5, the wind speed and range of the cooling wind are adjusted by the atomizing cooling structure, so as to achieve a size of the expanded metal powder within a certain range.

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