A special-shaped valve body ball core coating plating device

Abstract

The application discloses a special-shaped valve body ball core coating plating device, and belongs to the technical field of ball core coating plating, which comprises a preheating furnace, an ultrasonic plating terminal, an argon bottle, a gradient cooling furnace and a frame. The preheating furnace is used for preheating the special-shaped ball core before plating coating, so as to reduce thermal stress caused by uneven thermal expansion between the special-shaped ball core and the coating. The ultrasonic plating terminal transmits ultrasonic energy to the metal melt through the special-shaped ball core and the annular gradient cover. The special-shaped ball core and the annular gradient cover adjust the axial height in real time according to the liquid level of the metal melt, and automatically replace the ball core workpiece. The argon bottle is used for realizing oxygen-free environment control in the whole process of preheating, plating and gradient cooling of the special-shaped ball core, so as to avoid oxidation damage of the special-shaped ball core or the coating. The gradient cooling furnace is used for realizing temperature gradient reduction of the ball core after plating coating, reducing residual stress, enhancing the combination of the coating and the special-shaped ball core, and avoiding coating cracking caused by rapid cooling. The frame support part is used for carrying the whole device.

Description

Technical Field

[0001] This invention relates to the field of ball core coating technology, and more specifically to a ball core coating device for irregularly shaped valve bodies. Background Technology

[0002] Ball valves are increasingly widely used in petroleum, chemical, and power industries. Especially in harsh environments such as high temperature, high pressure, and strong corrosion, the wear resistance, corrosion resistance, and sealing performance of the valve body's ball core are paramount. While traditional ball core materials (such as stainless steel and alloy steel) possess a certain level of strength and corrosion resistance, they still face problems such as wear, corrosion, and sealing failure under extreme operating conditions, leading to shortened valve life and increased maintenance costs.

[0003] Currently, thermal spraying technology is commonly used to coat the surface of spherical cores to improve their wear resistance, corrosion resistance, and sealing performance. However, thermal spraying technology can only coat ordinary circular spherical cores and cannot be applied to coating complex spherical cores or the inner pores of spherical cores. Furthermore, the bonding strength between the thermally sprayed coating and the spherical core substrate, as well as residual stress, restrict the long-term stability and reliability of the coating. In addition, the preparation of spherical core coatings using thermal spraying technology suffers from long processes, significant waste of powder materials, and low manual efficiency, resulting in high production costs.

[0004] Therefore, ensuring the uniformity, high bonding strength, and low residual stress of the overall coating on the complex structure of the irregularly shaped spherical core after plating has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] The present invention aims to ensure the uniformity, high bonding strength and low residual stress of the overall coating of the complex structure of the irregular spherical core after the coating is completed.

[0006] Therefore, one object of the present invention is to provide a coating device for irregularly shaped valve body ball core, including a preheating furnace, an ultrasonic coating terminal, an argon cylinder, a gradient cooling furnace and a frame.

[0007] The ultrasonic coating terminal is fixedly connected to the frame.

[0008] The ultrasonic coating terminal includes an ultrasonic generator, a ball core moving device, an annular gradient device, and a melting furnace; the ultrasonic generator is connected to the annular gradient device, and the annular gradient device extends into the melting furnace; the ball core moving device clamps the irregularly shaped valve body ball core and moves it between the preheating furnace, the melting furnace, and the gradient cooling furnace.

[0009] The argon cylinder is equipped with an argon outlet, which is connected to a preheating and cooling argon nozzle, a moving argon nozzle, and a melting argon nozzle via a pipeline. The preheating and cooling argon nozzle is connected to a preheating furnace and a gradient cooling furnace. The moving argon nozzle is connected to a ball core moving device and sprays argon onto the irregularly shaped valve body ball core. The melting argon nozzle extends into the melting furnace.

[0010] Furthermore, the preheating furnace includes a first shell, a first furnace cover at the top of the first shell, a first argon gas inlet at the bottom of the first shell, and a first spiral resistance heating wire inside the first shell;

[0011] The first argon inlet is connected to the preheating and cooling argon nozzle via a pipeline.

[0012] In this invention, a preheating furnace is used to preheat the irregularly shaped spherical cores before plating, reducing the thermal stress caused by uneven thermal expansion between the spherical cores and the coating during the plating process. The preset temperature of the preheating furnace is 600℃. The current and time are controlled by a controller to achieve the required preheating temperature. The resistance wire is spirally wound around the inner ring of the outer shell, utilizing its high resistivity to convert electrical energy into heat energy after the preheating furnace is powered on, thereby raising the temperature of the irregularly shaped spherical cores inside the furnace. The outer shell of the preheating furnace is made of high-temperature resistant material to protect the resistance wire and ensure a safe working environment for the preheating furnace.

[0013] Furthermore, the gradient cooling furnace includes a second shell, a second furnace cover at the top of the second shell, a second argon gas inlet at the bottom of the second shell, and a second spiral resistance heating wire inside the second shell;

[0014] The second argon inlet is connected to the preheating and cooling argon nozzle via a pipeline.

[0015] Furthermore, the frame includes an ultrasonic support plate and a support frame;

[0016] The ultrasonic support plate is fixed on the support frame, the ultrasonic generator is fixed on the ultrasonic support plate, the upper end of the annular gradient device abuts against the ultrasonic support plate, and the lower end of the annular gradient device extends into the melting furnace; the ball core motion device is fixed below the ultrasonic support plate, and the melting furnace is fixed on one side of the support frame.

[0017] The ultrasonic support plate is fixed to the bottom of the water-cooled heat sink and supported above the smelting furnace by a support frame, serving to support the ultrasonic generator and the rotating disk. The support frame is fixed to the edge of the smelting furnace with snap-fit ​​fasteners and is fixed to the bottom of the ultrasonic support plate, serving to support the ultrasonic support plate. During the ultrasonic process, the ultrasonic generator first transmits the ultrasonic action to the ultrasonic support plate, and then through the ultrasonic support plate to the annular gradient device.

[0018] Furthermore, the argon gas nozzle for smelting is fixed to the lower surface of the ultrasonic support plate, and the argon gas nozzle for smelting is located 10 cm directly above the smelting furnace.

[0019] Furthermore, the ultrasonic generating device includes an ultrasonic generator, a vibrator, an amplitude transformer, an air-cooled heat sink, and a water-cooled heat sink;

[0020] The ultrasonic generator is electrically connected to the upper end of the vibrator, the top end of the amplitude transformer is threaded to the bottom end of the vibrator, the top end of the air-cooled heat sink is threaded to the bottom end of the amplitude transformer, and the top end of the water-cooled heat sink is threaded to the bottom end of the air-cooled heat sink; the lower end of the water-cooled heat sink is fixed on the ultrasonic support plate.

[0021] The ultrasonic generator is used to convert high-frequency electrical energy into ultrasonic waves, and then transmits the ultrasonic energy to the molten metal through a shaped spherical core and an annular gradient cover. This allows for sufficient inter-diffusion of elements in the molten metal, resulting in a uniform alloy composition. Furthermore, it ensures that the coating of the shaped spherical core is uniform and the microstructure is dense under the dual ultrasonic fields within the annular gradient cover, reducing defects and preventing delamination or deposition. The CNC ultrasonic generator converts ordinary 50-60Hz electrical energy into high-power, high-frequency electrical energy and supplies it to the vibrator. The vibrator is fixed to the top of the amplitude transformer via a threaded connection and electrically connected to the CNC ultrasonic generator, converting high-frequency electrical energy into mechanical vibration energy, i.e., ultrasonic waves. The air-cooled heat sink reduces temperature transfer through airflow in high-temperature applications, ensuring the vibrator operates at a reasonable temperature. The water-cooled heat sink reduces temperature transfer through cooling water flow in high-temperature applications, also ensuring the vibrator operates at a reasonable temperature.

[0022] Furthermore, the annular gradient device includes a first cylinder lifting rod and an annular gradient cover; the lower end of the first cylinder lifting rod is fixedly connected to the annular gradient cover, and the upper end of the first cylinder lifting rod is fixed below the ultrasonic support plate.

[0023] The annular gradient device is used to achieve a dual ultrasonic field effect, allowing the irregularly shaped spherical core to be repeatedly coated in the dual ultrasonic fields, enhancing the uniformity of the molten metal and coating. The annular gradient cover is fixed to the bottom end of the first cylinder lifting rod and is used to surround the spherical core during coating. Ultrasonic energy can be transferred to the annular gradient cover, thereby achieving a dual ultrasonic field effect with the irregularly shaped spherical core. The first cylinder lifting rod is fixed to the bottom of the ultrasonic support plate and is used to drive the annular gradient cover to move axially up and down.

[0024] Furthermore, the ball core motion device includes a drive motor and a rotating disk;

[0025] The lower end of the drive motor is provided with a first bearing, and a first gear is fixedly mounted on the first bearing; a second bearing is provided at the center of the upper part of the rotating disk, the second bearing is fixedly connected to the rotating disk, and a second gear is fixedly mounted on the second bearing.

[0026] The first gear meshes with the second gear;

[0027] Below the rotating disk are several second cylinder lifting rods, and the lower end of the second cylinder lifting rods is provided with a cylinder lifting clamp.

[0028] The rotating disk is fixed below the ultrasonic support disk.

[0029] A wireless signal receiver is located above the drive motor.

[0030] The ball core motion device is used to automatically rotate and lift the irregularly shaped ball core between the preheating furnace, the melting furnace, and the gradient cooling furnace. The inner ring of the rotating disk is connected to the ultrasonic support disk and the air pipe by rolling bearings, and the top of the inner ring of the rotating disk is connected to the drive motor by gears. The rotating disk is used to drive the irregularly shaped ball core to rotate automatically.

[0031] The inner ring of the first bearing is fixed to the drive motor drive shaft, and the outer ring is fixed to the ultrasonic support plate, which is used to support the drive motor and to allow the drive motor to rotate without affecting the ultrasonic support plate; the drive motor is placed on top of the first bearing, and its drive shaft is fixed to the first bearing, which is used to drive the first rotation; the wireless signal receiver is installed on the top of the drive motor, which is used to receive external commands for starting, speed setting, stopping and other functions of the drive motor.

[0032] The inner ring of the second bearing is fixed to the inner ring of the rotating disk, and the outer ring of the second bearing is fixed to the ultrasonic support disk, so as to realize the rotation of the rotating disk without affecting the ultrasonic support disk; the second gear is fixed to the inner ring of the rotating disk, and it meshes with the first gear to drive the rotating disk to rotate.

[0033] Preferably, it also includes a third bearing, the inner ring of which is fixed to the air tube and the outer ring of which is fixed to the inner ring of the rotating disk, so as to enable the rotating disk to rotate without affecting the air tube.

[0034] Preferably, the second cylinder lifting rod has three parts, which are fixed to the bottom of the outer ring of the rotating disk at a 60° angle, and are used to drive the irregular ball core to rise and fall axially. The pneumatic caliper is used to clamp the clamping rod on the irregular ball core.

[0035] Furthermore, the smelting furnace includes a control system, a third shell, a furnace body, and a cooling system;

[0036] The furnace body is fixed inside the third housing, and the outer surface of the furnace body is wrapped with an induction coil.

[0037] The control system is electrically connected to the induction coil;

[0038] The induction coil is a hollow tube, and the cooling system is connected to the induction coil via a pipe.

[0039] The smelting furnace is a medium-frequency induction smelting furnace used to heat and melt metal raw materials into molten metal. The control system converts ordinary 50-60Hz AC power to medium-frequency AC power and controls the smelting temperature, power, and time. The induction coil, arranged in a spiral around the furnace body, is electrically connected to the control system and forms a water circulation system with the cooling device, which is made of hollow copper tubing and internally circulates cooling water to prevent overheating.

[0040] Induction coils are also used to generate alternating magnetic fields, which induce eddy currents inside the metal raw materials in the furnace, generating Joule heating through the metal's resistance characteristics, thereby heating and melting the metal.

[0041] The furnace body is placed inside the third shell and is connected and fixed to the inner ring of the shell by a rotating rod. It is made of furnace refractory ceramic material and is used to place metal raw materials. The third shell is made of high temperature resistant material and is used to protect the furnace body. The cooling device forms a water circulation with the induction coil to cool the induction coil and power supply equipment and prevent overheating damage.

[0042] Furthermore, in this invention, the argon cylinder provides argon gas to the preheating furnace, the gradient cooling furnace, and the melting furnace, and the rated outlet gauge pressure is set to 0.1 MPa.

[0043] From formula (1), the argon outlet velocity is calculated to be v = 274 m / s. From formula (2), the equivalent diameter is calculated to be D = 1.13 cm. Substituting these values ​​into formula (3), the effective range of the argon is derived to be 60 cm. From formula (4), the argon gas density is calculated to be ρ = 3.32 kg / m³. 3 Substituting into formula (5), the argon flow rate can be derived as 0.016 m³ / s. 3 / s.

[0044] Bernoulli's equation for velocity (1):

[0045]

[0046] Where v is the fluid velocity; k is the specific heat ratio (argon is a monatomic gas, k = 1.67); R is the gas constant, R = 208 J / (kg·K); T is the tank temperature, room temperature is 293 K; P 环境 Due to environmental pressures, P 环境 =0.1013MPa; P 储罐 P is the absolute pressure of the storage tank. 储罐 =P 表 +P 环境 =0.2013MPa.

[0047] Formula for calculating the equivalent diameter D of the fluid (2):

[0048]

[0049] Where A is the fluid outlet orifice diameter, A = 1 cm 2 .

[0050] Formula for fluid velocity decay in turbulent environments (3):

[0051]

[0052] Where v is the argon outlet velocity; v(x) is the effective range velocity, defined here as 10%v; x is the effective range distance; and D is the fluid equivalent diameter.

[0053] Gas density derivation formula (4):

[0054]

[0055] Where ρ is the gas density; P is the absolute pressure of argon gas; that is, P = P 储罐 =0.2013MPa; M is the molar mass of argon, M = 0.039948kg / mol; R is the gas constant, R = 8.314J / (mol·k); T is the tank temperature, room temperature is 293K.

[0056] Formula (5) for compressible gas flow rate:

[0057]

[0058] Where Q is the argon flow rate; C d Here, we take C as the flow coefficient. d =0.65; A is the argon outlet area, A = 1 cm² 2 ΔP is the pressure difference, ΔP = P 储罐 -P 环境 =1MPa; ρ is the gas density.

[0059] The diameter of the argon gas nozzle used for smelting is 1 cm. 2 It is fixed to the bottom of the ultrasonic support plate and connected to the argon cylinder by a pipeline. It is used to spray argon gas to cover the furnace body, so that the metal smelting inside the furnace is in an oxygen-free environment. According to formula (3), the effective coverage range of argon gas is 60cm. Considering the atmospheric air resistance and the range attenuation in the atmosphere, the distance between the smelting argon gas nozzle and the irregular spherical core being coated is set to about 30cm. The flow rate is calculated to be 0.016m³ / h by formula (5). 3 / s.

[0060] The diameter of the movable argon nozzle is 1 cm. 2This system is used to spray argon gas onto a shaped spherical core held by pneumatic clamps, ensuring that the core remains in an argon-protected, oxygen-free environment as it rotates between the preheating furnace, melting furnace, and gradient cooling furnace. The movable argon nozzle is similar to the melting argon nozzle; therefore, the distance between the movable argon nozzle and the shaped spherical core held by the pneumatic clamps is set at 30 cm, and the flow rate is 0.016 m³ / h. 3 / s.

[0061] Argon gas transfer pipes for smelting are used to transfer argon gas through argon gas nozzles in smelting processes.

[0062] The movable argon gas transfer tube is used to transfer argon gas from the argon cylinder to the argon nozzle.

[0063] The argon gas is transferred through the preheating furnace and the gradient cooling furnace via the preheating and cooling argon gas transfer pipe. The flow rate is calculated as 0.016 m³ / s by formula (5). 3 / s.

[0064] In this invention, when it is necessary to coat the irregularly shaped spherical core, the rotating disk moves the irregularly shaped spherical core from the preheating furnace to the melting furnace. The ultrasonic vibrator emits ultrasonic waves that are transmitted to the molten metal through the irregularly shaped spherical core and the annular gradient cover, so that the elements in the molten metal can fully diffuse into each other and the alloy composition is uniform. The irregularly shaped spherical core is repeatedly coated under the action of the dual ultrasonic fields in the annular gradient cover, which further ensures that the coating is uniform and the microstructure is dense at the complex structure of the irregularly shaped spherical core, reduces defects, and avoids delamination or deposition. After the coating is completed, the rotating disk moves the spherical core workpiece from the melting furnace to the gradient cooling furnace. The entire coating process is protected by argon gas.

[0065] The beneficial effects of this invention are as follows: This invention discloses a coating device for irregularly shaped valve body spherical cores. It utilizes a preheating furnace to preheat the irregularly shaped spherical core, an ultrasonic vibrator to transmit ultrasonic waves through the spherical core and an annular gradient cover to the molten metal, a rotating disk to automatically rotate the spherical core between the preheating furnace, the melting furnace, and the gradient cooling furnace, a cylinder lifting rod to axially raise and lower the spherical core, and the gradient cooling furnace to achieve gradient cooling of the spherical core. The entire coating process is protected by argon gas. When coating is required, the preheating furnace reduces thermal stress caused by uneven thermal expansion between the spherical core and the coating during the coating process. After preheating, the rotating disk moves the spherical core from the preheating furnace to above the melting furnace, where the cylinder lifting rod and the annular gradient device immerse the spherical core and the annular gradient cover in the molten metal. During the coating process, the irregularly shaped spherical core is repeatedly coated under the action of dual ultrasonic fields within an annular gradient hood. This allows for sufficient inter-diffusion of molten metal elements, resulting in a uniform alloy composition and a uniform coating with a dense microstructure at the complex structure of the irregularly shaped spherical core. After coating, a cylinder lifting rod lifts the irregularly shaped spherical core, and a rotating disk moves it from the melting furnace to a gradient cooling furnace. The gradient cooling furnace reduces the temperature gradient after coating, minimizing residual stress, enhancing the bond between the coating and the irregularly shaped spherical core, and preventing coating cracking caused by rapid cooling. The entire process of this invention is protected by argon gas to achieve an oxygen-free environment, preventing oxidation damage to the irregularly shaped spherical core or coating. Therefore, after coating, the overall coating and the coating at complex structures exhibit uniform elemental composition, uniform thickness, high bonding strength, and low oxidation. Attached Figure Description

[0066] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0067] Figure 1 This is a schematic diagram of the irregularly shaped valve body ball core coating device in this invention. Figure 1 ;

[0068] Figure 2 This is a schematic diagram of the irregularly shaped valve body ball core coating device in this invention. Figure 2 ;

[0069] Figure 3 This is a schematic diagram of the preheating furnace in this invention;

[0070] Figure 4 This is a schematic diagram of the gradient cooling furnace in this invention;

[0071] Figure 5 This is a schematic diagram of the ultrasonic generator in this invention;

[0072] Figure 6 This is a schematic diagram of the annular gradient device structure in this invention;

[0073] Figure 7 This is a schematic diagram of the ball core motion device in this invention;

[0074] Figure 8 This is a schematic diagram of the smelting furnace structure in this invention;

[0075] Figure 9 This is a cross-sectional view of the third shell of the smelting furnace in this invention;

[0076] The structures represented by each number in the attached diagram are listed below: 1-Preheating furnace, 2-Ultrasonic coating terminal, 3-Argon cylinder, 4-Gradient cooling furnace, 5-Frame;

[0077] 11-First shell, 12-First furnace cover, 13-First argon inlet, 14-First spiral resistance heating wire;

[0078] 21-Ultrasonic generating device, 22-Spherical core motion device, 23-Annular gradient device, 24-Smelting furnace;

[0079] 31-Preheating and cooling argon nozzle, 32-Moving argon nozzle, 33-Melting argon nozzle;

[0080] 41-Second shell, 42-Second furnace cover, 43-Second argon inlet, 44-Second spiral resistance heating wire;

[0081] 51-Ultrasonic support plate, 52-Support frame;

[0082] 211-Ultrasonic generator, 212-Vibrator, 213-Amplitude converter, 214-Air-cooled heat sink, 215-Water-cooled heat sink;

[0083] 221-Drive motor, 222-Rotating disk, 223-First bearing, 224-First gear, 225-Second bearing, 226-Second gear, 227-Second cylinder lifting rod, 228-Cylinder lifting caliper, 229-Wireless signal receiving device;

[0084] 231 - First cylinder lifting rod, 232 - Annular gradient cover;

[0085] 241-Control system, 242-Third housing, 243-Furnace body, 244-Cooling system, 245-Induction coil. Detailed Implementation

[0086] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0087] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0088] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0089] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0090] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0091] Example 1

[0092] A coating device for irregularly shaped valve body ball cores includes a preheating furnace 1, an ultrasonic coating terminal 2, an argon cylinder 3, a gradient cooling furnace 4, and a frame 5.

[0093] The ultrasonic coating terminal 2 is fixedly connected to the frame 5;

[0094] The ultrasonic coating terminal 2 includes an ultrasonic generator 21, a ball core moving device 22, an annular gradient device 23, and a melting furnace 24; the upper end of the annular gradient device 23 abuts against the lower surface 21 of the ultrasonic support plate, and the lower end of the annular gradient device 23 extends into the melting furnace 24; the ball core moving device 22 clamps the irregularly shaped valve body ball core and moves it between the preheating furnace 1, the melting furnace 24, and the gradient cooling furnace 4;

[0095] Argon cylinder 3 is equipped with an argon outlet, which is connected to a preheating and cooling argon nozzle 31, a moving argon nozzle 32, and a melting argon nozzle 33 via a pipeline. The preheating and cooling argon nozzle 31 is connected to the preheating furnace 1 and the gradient cooling furnace 4. The moving argon nozzle 32 is connected to the ball core moving device 22 and sprays argon onto the irregularly shaped valve body ball core. The melting argon nozzle 33 extends into the melting furnace 24.

[0096] In some embodiments, the preheating furnace 1 includes a first shell 11, a first furnace cover 12 is provided at the top of the first shell 11, a first argon gas inlet 13 is provided at the lower end of the first shell 11, and a first spiral resistance heating wire 14 is provided inside the first shell 11.

[0097] The first argon inlet 13 is connected to the preheating and cooling argon nozzle 31 via a pipeline.

[0098] In other embodiments, the gradient cooling furnace includes a second shell 41, a second furnace cover 42 at the top of the second shell 41, a second argon inlet 43 at the bottom of the second shell 41, and a second spiral resistance heating wire 44 inside the second shell 41.

[0099] The second argon inlet 43 is connected to the preheating and cooling argon nozzle 31 via a pipeline.

[0100] In some embodiments, the frame includes an ultrasonic support plate 51 and a support frame 52;

[0101] The ultrasonic support plate 51 is fixed on the support frame 52, the ultrasonic generator 21 is fixed on the ultrasonic support plate 51, and the annular gradient device 23 passes through the ultrasonic support plate 51 and extends into the melting furnace 24; the ball core motion device 22 is fixed below the ultrasonic support plate 51, and the melting furnace 24 is fixed on one side of the support frame 52.

[0102] In some embodiments, the ultrasonic generating device 21 includes an ultrasonic generator 211, a vibrator 212, an amplitude transformer 213, an air-cooled heat sink 214, and a water-cooled heat sink 215.

[0103] Among them, the upper end of the ultrasonic generator 211 is electrically connected to the vibrator 212, the top end of the amplitude transformer 213 is threadedly connected to the bottom end of the vibrator 212, the top end of the air-cooled heat sink 214 is threadedly connected to the bottom end of the amplitude transformer 213, and the top end of the water-cooled heat sink 215 is threadedly connected to the bottom end of the air-cooled heat sink 214; the lower end of the water-cooled heat sink 215 is fixed on the ultrasonic support plate 51.

[0104] In other embodiments, the annular gradient device 23 includes a first cylinder lifting rod 231 and an annular gradient cover 232; the lower end of the first cylinder lifting rod 231 is fixedly connected to the annular gradient cover 232, and the upper end of the first cylinder lifting rod 232 is fixed below the ultrasonic support plate 51.

[0105] In some embodiments, the ball core motion device 22 includes a drive motor 221 and a rotating disk 222;

[0106] The lower end of the drive motor 221 is provided with a first bearing 223, and a first gear 224 is fixedly provided on the first bearing 223; a second bearing 225 is provided at the center of the upper part of the rotating disk 222, the second bearing 225 is fixedly connected to the rotating disk 222, and a second gear 226 is fixedly provided on the second bearing 225.

[0107] The first gear 224 meshes with the second gear 226;

[0108] Below the rotating disk 222 are several second cylinder lifting rods 227, and each second cylinder lifting rod 227 has a cylinder lifting clamp 228 at its lower end;

[0109] The rotating disk 222 is fixed below the ultrasonic support disk 51.

[0110] In some embodiments, a wireless signal receiver 229 is provided above the drive motor 221.

[0111] In some embodiments, the smelting furnace 24 includes a control system 241, a third housing 242, a furnace body 243, and a cooling system 244;

[0112] The furnace body 243 is fixed inside the third shell 242, and the outer surface of the furnace body 243 is wrapped with an induction coil 245.

[0113] The control system 241 is electrically connected to the induction coil 245;

[0114] The induction coil 241 is a hollow tube, and the cooling system 244 is connected to the induction coil 241 through a pipe.

[0115] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0116] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A coating device for an irregularly shaped valve body ball core, characterized in that, Includes a preheating furnace, ultrasonic coating terminal, argon cylinder, gradient cooling furnace, and frame; The ultrasonic coating terminal is fixedly connected to the frame. The ultrasonic coating terminal includes an ultrasonic generator, a ball core moving device, an annular gradient device, and a melting furnace; the ultrasonic generator is connected to the annular gradient device, and the annular gradient device extends into the melting furnace; the ball core moving device clamps the irregularly shaped valve body ball core and moves it between the preheating furnace, the melting furnace, and the gradient cooling furnace. The argon cylinder is equipped with an argon outlet, which is connected to a preheating and cooling argon nozzle, a moving argon nozzle, and a melting argon nozzle via a pipeline. The preheating and cooling argon nozzle is connected to a preheating furnace and a gradient cooling furnace. The moving argon nozzle is connected to a ball core moving device and sprays argon onto the irregularly shaped valve body ball core. The melting argon nozzle extends into the melting furnace.

2. The device for coating a shaped valve body ball core according to claim 1, characterized in that, The preheating furnace includes a first shell, a first furnace cover at the top of the first shell, a first argon gas inlet at the bottom of the first shell, and a first spiral resistance heating wire inside the first shell. The first argon inlet is connected to the preheating and cooling argon nozzle via a pipeline.

3. The device for coating a shaped valve body ball core according to claim 2, characterized in that, The gradient cooling furnace includes a second shell, a second furnace cover at the top of the second shell, a second argon gas inlet at the bottom of the second shell, and a second spiral resistance heating wire inside the second shell. The second argon inlet is connected to the preheating and cooling argon nozzle via a pipeline.

4. The device for coating a shaped valve body ball core according to claim 1, characterized in that, The frame includes an ultrasonic support plate and a support frame; The ultrasonic support plate is fixed on the support frame, the ultrasonic generator is fixed on the ultrasonic support plate, the upper end of the annular gradient device abuts against the ultrasonic support plate, and the lower end of the annular gradient device extends into the melting furnace; the ball core motion device is fixed below the ultrasonic support plate, and the melting furnace is fixed on one side of the support frame.

5. The device for coating a shaped valve body ball core according to claim 4, characterized in that, The ultrasonic generating device includes an ultrasonic generator, a vibrator, an amplitude transformer, an air-cooled heat sink, and a water-cooled heat sink; The ultrasonic generator is electrically connected to the upper end of the vibrator, the top end of the amplitude transformer is threaded to the bottom end of the vibrator, the top end of the air-cooled heat sink is threaded to the bottom end of the amplitude transformer, and the top end of the water-cooled heat sink is threaded to the bottom end of the air-cooled heat sink; the lower end of the water-cooled heat sink is fixed on the ultrasonic support plate.

6. The device for coating a shaped valve body ball core according to claim 5, characterized in that, The annular gradient device includes a first cylinder lifting rod and an annular gradient cover; the lower end of the first cylinder lifting rod is fixedly connected to the annular gradient cover, and the upper end of the first cylinder lifting rod is fixed below the ultrasonic support plate.

7. The device for coating and plating an irregularly shaped valve body ball core according to claim 4, characterized in that, The ball core motion device includes a drive motor and a rotating disk; The lower end of the drive motor is provided with a first bearing, and a first gear is fixedly mounted on the first bearing; a second bearing is provided at the center of the upper part of the rotating disk, the second bearing is fixedly connected to the rotating disk, and a second gear is fixedly mounted on the second bearing. The first gear meshes with the second gear; Below the rotating disk are several second cylinder lifting rods, and the lower end of the second cylinder lifting rods is provided with a cylinder lifting clamp. The rotating disk is fixed below the ultrasonic support disk.

8. The device for coating and plating a shaped valve body ball core according to claim 7, characterized in that, A wireless signal receiver is located above the drive motor.

9. The device for coating a shaped valve body ball core according to claim 4, characterized in that, The smelting furnace includes a control system, a third shell, a furnace body, and a cooling system; The furnace body is fixed inside the third housing, and the outer surface of the furnace body is wrapped with an induction coil. The control system is electrically connected to the induction coil; The induction coil is a hollow tube, and the cooling system is connected to the induction coil via a pipe.

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