Inert gas automatic restraint type high-temperature alloy welding device

Abstract

The invention discloses an inert gas automatic restraint type high-temperature alloy welding device, and relates to the technical field of high-temperature alloy welding, the inert gas automatic restraint type high-temperature alloy welding device comprises a welding nozzle component and a gas restraint component, the lower end of the welding nozzle component is sleeved with an inert gas output end component, and the bottom end of the inert gas output end component is sleeved with the gas restraint component. According to the inert gas automatic restraint type high-temperature alloy welding device, through ingenious combination of a plurality of components, automatic restraint and accurate output of inert gas in the high-temperature alloy welding process are achieved; the inert gas output end component is responsible for evenly and stably conveying inert gas to a welding area, and oxidation and nitridation of high-temperature alloy in the welding process are effectively prevented. The gas constraint component further improves the welding precision and efficiency by accurately controlling the flowing path and range of the inert gas. And the first combined bolt and the second fixed bolt are used for firmly connecting all the parts together, so that the stability and the reliability of the whole device are ensured.

Description

Technical Field

[0001] This invention relates to the field of high-temperature alloy welding technology, specifically to an inert gas-assisted automatic confinement high-temperature alloy welding device. Background Technology

[0002] High-temperature alloy welding refers to a precision manufacturing technology that achieves metallurgical connection between nickel-based, cobalt-based, or iron-based alloy materials that have been in long-term service at temperatures above 600℃ through specific heat sources and processes. Its core objective is to form defect-free, high-performance welded joints while maintaining the high-temperature strength, oxidation resistance, and structural stability of the base materials. Welding must be carried out under inert gas protection (such as argon gas with a purity ≥99.99%) or in a vacuum environment, with strict control over heat input and cooling rates.

[0003] "Automatic inert gas confinement type high-temperature alloy welding device" is not a standardized general term, but rather an engineering description of a specialized system that integrates high-precision gas sealing, automated control, and high-temperature alloy welding technology. Essentially, it is a closed-loop welding fixture system designed to solve core problems in high-temperature alloy welding such as insufficient gas protection, unstable thermal field, and uncontrollable deformation.

[0004] This device is a multi-module collaborative automated welding platform, whose core functions include: Automatic inert gas confinement: Through programmable airtight clamps or local enclosure structures, a closed or semi-closed gas chamber is formed around the weld, realizing efficient retention and dynamic compensation of argon / helium, and improving gas utilization by more than 40%. Automatic positioning and clamping: Integrated servo-driven fixtures enable millimeter-level repeatable positioning of workpieces, and combined with thermal expansion compensation algorithms, suppress welding deformation; Intelligent gas control: Based on real-time infrared monitoring of the molten pool and gas flow feedback, the protective gas flow rate (typical range: 15–30 L / min) and pressure (0.1–0.3 MPa) are dynamically adjusted to ensure the stability of the protective layer; Adaptive welding path: Linked with a laser or TIG welding head, it automatically adjusts the welding torch posture and trajectory according to the workpiece's curved surface, suitable for complex geometries such as turbine blades and combustion chambers. Conventional inert gas shielded welding equipment often faces the challenge of precisely controlling the gas shielding range when welding high-temperature alloys. Because high-temperature alloy welding demands extremely high levels of gas shielding, uneven or inaccurate distribution of the shielding gas can easily lead to oxidation or nitriding in the weld area, severely impacting weld quality. Summary of the Invention

[0005] The purpose of this invention is to provide an inert gas-assisted automatic confinement high-temperature alloy welding device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an inert gas automatic confinement type high-temperature alloy welding device, comprising a welding nozzle component and a gas confinement component, wherein an inert gas output end component is sleeved and installed at the lower end of the welding nozzle component, and a gas confinement component is sleeved and installed at the bottom end of the inert gas output end component, wherein the gas confinement component comprises an airtight cover, a sealing sleeve, a sealing ring, and a fixing seat, wherein a sealing sleeve is vertically installed in the middle of the airtight cover, and sealing rings are symmetrically arranged at the left and right ends of the sealing sleeve, and a fixing seat is installed at the top edge of the sealing sleeve.

[0007] Furthermore, the welding nozzle component includes a welding nozzle body, an outer end, a snap ring, and a snap ring seat. The top of the welding nozzle body is provided with an outer end, and a set of snap rings is provided on the upper and lower outer sides of the lower end of the welding nozzle body. In addition, a set of snap ring seats is provided on the upper and lower surfaces of the lower end of the welding nozzle body.

[0008] Furthermore, the external end is used to connect the welding nozzle body to external welding equipment to provide the necessary energy input for the welding process, and the welding nozzle body and the snap-fit ​​round seat are integrated into one structure, and the snap-fit ​​round seat is symmetrically arranged on both sides of the outer side of the welding nozzle body.

[0009] Furthermore, the inert gas output terminal component includes a stabilizing sleeve, a support base, an external gas valve, an outlet valve pipe, and a connecting round seat. The upper end of the stabilizing sleeve is symmetrically and horizontally provided with support bases on the left and right sides. The end of the support base away from the stabilizing sleeve is vertically installed with an external gas valve. The bottom of the end of the support base away from the stabilizing sleeve is vertically installed with an outlet valve pipe. The left and right sides of the outlet valve pipe are symmetrically provided with connecting round seats.

[0010] Furthermore, the stabilizing sleeve, the support base, and the connecting round base are integrated into a single structure, and the connecting round bases are arranged in a ring array with the stabilizing sleeve as the center, and there are four groups of them.

[0011] Furthermore, both the snap ring and the snap seat are matched with the inner wall of the stabilizing sleeve to achieve a stable connection between the welding nozzle component and the inert gas output end component. The gas outlet valve tube is made of a high-temperature resistant material.

[0012] Furthermore, the connection between the welding nozzle component and the inert gas output end component is symmetrically and horizontally threaded with a first combination bolt at both ends, and the connection between the inert gas output end component and the gas confinement component is horizontally connected with a second fixing bolt, and the second fixing bolt is arranged in a ring array structure with the gas confinement component as the center and distributed in four groups.

[0013] Furthermore, the first combination bolt is horizontally threaded and installed on the front and rear sides of the upper and lower ends of the stabilizing sleeve and is threadedly connected to the snap-fit ​​round seat. The second fixing bolt is horizontally threaded and penetrates the upper end of the fixing seat and is threadedly connected to the connecting round seat.

[0014] This invention provides an inert gas-confined high-temperature alloy welding device, which has the following advantages: 1. This invention, through the structural design of the gas confinement component, on the one hand, the combination design of the airtight cover and the sealing sleeve can form a sealed gas protection chamber during the welding process, effectively ensuring the efficient retention of inert gas in the welding area, preventing unnecessary external gas intrusion that could lead to weld oxidation, and reducing problems such as insufficient protection, unstable thermal field, and uncontrollable deformation. On the other hand, the synergistic effect of the sealing ring and the fixing seat enhances the connection and sealing between the gas confinement component and the inert gas output component, preventing inert gas leakage and ensuring the stability of welding quality.

[0015] 2. This invention, through the unique design of the welding nozzle component, the integrated structure of the welding nozzle body with the snap ring and snap seat, and the reasonable setting of the external end, not only facilitates connection with external welding equipment and provides stable energy input for welding, but also achieves a stable assembly of the welding nozzle component and the inert gas output end component through the matching connection of the snap ring and snap seat with the stable sleeve of the inert gas output end component. This ensures the relative positional accuracy of each component during the welding process and helps to improve welding accuracy.

[0016] 3. This invention utilizes the structural advantages of the inert gas output terminal components, including the integrated structure of the stabilizing sleeve, support base, and connecting circular base, as well as the rational layout of the external gas valve and outlet valve pipe on the support base. This allows for the smooth input and output of inert gas. Furthermore, the annular array of the connecting circular base with the stabilizing sleeve as the center enhances the stability of the structure and the uniformity of gas distribution. At the same time, the outlet valve pipe is made of high-temperature resistant material, which can adapt to the high-temperature environment during high-temperature alloy welding, ensuring the normal delivery of inert gas and providing reliable gas protection for welding.

[0017] 4. This invention utilizes a first combination bolt and a second fixing bolt. The first combination bolt, with its horizontal thread, is installed between the stabilizing sleeve and the snap-fit ​​round seat, achieving a tight connection between the welding nozzle component and the inert gas output end component. The second fixing bolt is arranged in a ring array structure with the gas confinement component as the center, and four groups are distributed. Its horizontal thread passes through the fixing seat and connects to the connecting round seat, ensuring a stable assembly of the inert gas output end component and the gas confinement component. This connection method not only facilitates installation and disassembly, making equipment maintenance and repair easier, but also withstands various stresses generated during welding, ensuring the overall structural stability of the device. This provides a stable and reliable working environment for high-temperature alloy welding, effectively improving welding quality and efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main body of an inert gas-assisted high-temperature alloy welding device according to the present invention. Figure 2 This is a schematic diagram of the disassembled structure of the body of an inert gas-confined high-temperature alloy welding device according to the present invention. Figure 3 This is a three-dimensional structural diagram of the welding nozzle component of an inert gas-confined high-temperature alloy welding device according to the present invention. Figure 4 This is a three-dimensional structural diagram of the inert gas output end component of an inert gas automatic confinement type high-temperature alloy welding device according to the present invention; Figure 5 This is a three-dimensional structural diagram of the gas constraint component of an inert gas automatic confinement high-temperature alloy welding device according to the present invention.

[0019] In the diagram: 1. Welding nozzle component; 101. Welding nozzle body; 102. External connection end; 103. Snap-fit ​​ring; 104. Snap-fit ​​round seat; 2. Inert gas output end component; 201. Stabilizing sleeve; 202. Support seat; 203. External gas valve; 204. Gas outlet valve pipe; 205. Connecting round seat; 3. Gas confinement component; 301. Airtight cover; 302. Sealing sleeve; 303. Sealing ring clamp; 304. Fixing seat; 4. First combination bolt; 5. Second fixing bolt. Detailed Implementation

[0020] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0021] like Figures 1 to 5As shown, an inert gas automatic confinement high-temperature alloy welding device includes a welding nozzle component 1 and a gas confinement component 3. An inert gas output end component 2 is sleeved onto the lower end of the welding nozzle component 1, and a gas confinement component 3 is sleeved onto the bottom end of the inert gas output end component 2. The gas confinement component 3 includes an airtight cover 301, a sealing sleeve 302, a sealing ring 303, and a fixing seat 304. The sealing sleeve 302 is vertically installed in the middle of the airtight cover 301, and sealing rings 303 are symmetrically arranged at both ends of the sealing sleeve 302. A fixing seat 304 is installed at the top edge of the sealing sleeve 302. The welding nozzle component 1 includes a welding nozzle body 101, an outer end 102, a snap-fit ​​ring 103, and a snap-fit ​​round seat 104. The outer end 102 is provided at the top of the welding nozzle body 101, and a set of snap-fit ​​rings 103 are provided on the upper and lower outer sides of the lower end of the welding nozzle body 101. Furthermore, the lower surface of the welding nozzle body 101 is also... Each part is provided with a set of snap-fit ​​round seats 104. The external end 102 is used to connect the welding nozzle body 101 to external welding equipment to provide the necessary energy input for the welding process. The welding nozzle body 101 and the snap-fit ​​round seats 104 are integrated into one structure. The snap-fit ​​round seats 104 are symmetrically arranged on the outer sides of the welding nozzle body 101. By utilizing the matching design of the snap-fit ​​ring 103 and the snap-fit ​​round seats 104 with the inner wall of the stabilizing sleeve 201, during assembly, the lower end of the welding nozzle component 1 is simply aligned with the upper end of the stabilizing sleeve 201 and inserted. The snap-fit ​​ring 103 and the snap-fit ​​round seats 104 will be smoothly embedded in the stabilizing sleeve 201 to achieve initial positioning. Then, the first combination bolt 4 is installed horizontally on the front and rear sides of the upper and lower ends of the stabilizing sleeve 201 and threadedly connected to the snap-fit ​​round seats 104, which further strengthens the connection between the welding nozzle component 1 and the inert gas output end component 2, ensuring that there will be no relative displacement between the two during the welding process and ensuring the stability of the welding.

[0022] For the connection between the inert gas output component 2 and the gas confinement component 3, the second fixing bolts 5 are arranged in a ring array with the gas confinement component 3 as the center, and there are four sets of them. The horizontal thread passes through the upper end of the fixing seat 304 and is threadedly connected to the connecting round seat 205. This connection method makes the connection between the two more stable. During the welding process, the gas confinement component 3 needs to withstand a certain pressure and stress. The four sets of second fixing bolts 5 can evenly distribute these forces, avoiding excessive local stress that could lead to loosening or damage to the connection, and ensuring the reliable operation of the entire device under high temperature and high pressure environment.

[0023] When using this device for high-temperature alloy welding, the welding nozzle component 1 is first connected to the external welding equipment via the external terminal 102 to ensure a stable input of welding energy. Then, the inert gas source is connected to the external gas valve 203, allowing the inert gas to smoothly enter the stabilizing sleeve 201 and then be output through the outlet valve pipe 204 to the gas protection chamber formed by the gas confinement component 3. Because the outlet valve pipe 204 is made of a high-temperature resistant material, it can still normally deliver inert gas in the high-temperature environment generated during high-temperature alloy welding, providing reliable gas protection for the welding area and preventing weld oxidation.

[0024] During welding, the airtight shroud 301 of the gas confinement component 3 and the sealing sleeve 302 form a sealed gas protection chamber that effectively traps inert gas and reduces gas leakage. Simultaneously, the synergistic effect of the sealing ring 303 and the fixing seat 304 further enhances the sealing performance between the gas confinement component 3 and the inert gas output component 2, ensuring that inert gas does not leak from the connection and guaranteeing the stability of welding quality. Moreover, based on real-time infrared monitoring of the molten pool and gas flow feedback, the intelligent gas control system can dynamically adjust the protective gas flow rate and pressure, keeping the protective layer stable and creating favorable conditions for welding.

[0025] like Figures 1 to 5As shown, the inert gas output component 2 includes a stabilizing sleeve 201, a support base 202, an external gas valve 203, an outlet valve pipe 204, and a connecting round seat 205. The support base 202 is symmetrically and horizontally arranged on the left and right sides of the upper end of the stabilizing sleeve 201. The external gas valve 203 is vertically installed at the end of the support base 202 away from the stabilizing sleeve 201. The outlet valve pipe 204 is vertically installed at the bottom of the end of the support base 202 away from the stabilizing sleeve 201. Connecting round seats 205 are symmetrically arranged on the left and right sides of the outlet valve pipe 204. The stabilizing sleeve 201, support base 202... The 02 and the connecting round seat 205 are integrated into a single structure. The connecting round seats 205 are arranged in a ring array with the stabilizing sleeve 201 as the center, and there are four sets of these. The snap-fit ​​ring 103 and the snap-fit ​​round seat 104 both match the inner wall of the stabilizing sleeve 201, ensuring a stable connection between the welding nozzle component 1 and the inert gas output end component 2. The outlet valve pipe 204 is made of high-temperature resistant material. The integrated structure of the stabilizing sleeve 201, support seat 202, and connecting round seat 205 enhances the overall strength and stability of the inert gas output end component 2. During welding, it can withstand certain external impacts and vibrations, ensuring structural integrity. The four sets of connecting round seats 205 arranged in a ring array ensure more even stress distribution during connection with the gas confinement component 3, improving connection reliability. The exhaust valve pipe 204 is made of high-temperature resistant material, which is not easily deformed or damaged in high-temperature environments. This ensures that inert gas can be continuously and stably output into the gas protection chamber, providing a reliable gas protection barrier for welding, effectively preventing the weld from being oxidized at high temperatures, and ensuring welding quality.

[0026] like Figures 1 to 5As shown, the connection between the welding nozzle component 1 and the inert gas output end component 2 is symmetrically and horizontally threaded with first combination bolts 4 at both ends. The connection between the inert gas output end component 2 and the gas confinement component 3 is horizontally connected with second fixing bolts 5. The second fixing bolts 5 are arranged in a ring array structure with the gas confinement component 3 as the center and are distributed in four groups. The first combination bolts 4 are horizontally threaded on the front and rear sides of the upper and lower ends of the stabilizing sleeve 201 and are threadedly connected to the snap-fit ​​round seat 104. The second fixing bolts 5 are horizontally threaded through the upper end of the fixing seat 304 and are threadedly connected to the connecting round seat 205. The threaded connection method of the first combination bolts 4 and the second fixing bolts 5 not only makes installation and disassembly very convenient, but also facilitates quick replacement and repair of components when the equipment malfunctions or needs maintenance. Moreover, this connection method can provide a stable connection effect. During the welding process, the device is subjected to various factors such as high temperature, pressure, and vibration generated during welding. The first combination bolt 4 and the second fixing bolt 5 can withstand these stresses, ensuring that the relative positions of the welding nozzle component 1, the inert gas output end component 2, and the gas confinement component 3 are fixed and will not loosen or shift. This provides a stable and reliable working environment for high-temperature alloy welding, effectively improving welding quality and efficiency. At the same time, this standardized connection design also facilitates the flexible replacement and upgrading of device components according to different welding requirements, enhancing the device's versatility and adaptability.

[0027] In summary, as Figures 1 to 5 As shown, in this inert gas automatic confinement high-temperature alloy welding device, during use, the components are first accurately assembled according to the design requirements to ensure a tight and stable connection between the welding nozzle component 1, the inert gas output end component 2, and the gas confinement component 3. Next, the welding nozzle component 1 is reliably connected to external welding equipment via the external connection end 102 to ensure a stable and continuous input of welding energy. Then, connect the inert gas source tightly to the external gas valve 203, open the external gas valve 203, and let the inert gas flow smoothly into the stabilizing sleeve 201. During the gas flow process, check whether there is any gas leakage at each connection point. A simple test can be performed by applying soapy water to the connection point. If bubbles are found, it indicates that there is a leak, and the connection parts need to be tightened again in time. After confirming that there is no leakage, the inert gas will be output through the outlet valve pipe 204 into the gas protection chamber formed by the gas confinement component 3. At this time, the external welding equipment is started, and high-temperature alloy welding operation is performed through the welding nozzle body 101. During the welding process, it is essential to closely monitor the gas conditions within the gas protection chamber to ensure that the inert gas maintains a stable flow rate and pressure. This can be achieved by observing devices such as pressure gauges connected to the vent valve pipe 204. Simultaneously, the condition of the weld pool should be monitored in real time, and welding parameters, such as welding current and voltage, should be adjusted appropriately according to the welding situation to ensure welding quality. After welding is completed, first turn off the external welding equipment and stop the input of welding energy. Then, close the external gas valve 203 to stop the supply of inert gas. After the device has cooled down for a period of time, disassemble the gas confinement component 3, the inert gas output component 2, and the welding nozzle component 1 in the reverse order of assembly. Clean and maintain each component for future use. During disassembly, simply rotate the first combination bolt 4 and the second fixing bolt 5 counterclockwise in sequence to separate them from the corresponding threaded connection parts. Since the first combination bolt 4 and the second fixing bolt 5 use a threaded connection, the rotation operation is simple and convenient, ensuring a stable connection under normal working conditions and easy separation when disassembly is required. After the first combination bolt 4 and the second fixing bolt 5 are completely separated, gently lift the welding nozzle component 1 upwards. Due to the matching design of the locking ring 103 and the locking seat 104 with the inner wall of the stabilizing sleeve 201, the locking ring 103 and the locking seat 104 will smoothly disengage from the stabilizing sleeve 201 when lifted upwards, achieving separation of the welding nozzle component 1 from the inert gas output component 2. Next, disassemble the inert gas output component 2 and the gas constraint component 3. Since the second fixing bolt 5 has been separated, simply grasp the gas constraint component 3 and pull it outwards with slight force to completely disengage the connection between the connecting seat 205 and the second fixing bolt 5, thus removing the gas constraint component 3 from the inert gas output component 2. During disassembly, handle with care to avoid damaging any components. After disassembly, use a clean, soft cloth or a dedicated cleaning tool to carefully wipe the surface of each component, removing dust, solder slag, and other impurities generated during welding. For hard-to-reach crevices or areas, use a small brush or compressed air to clean, ensuring all component surfaces are thoroughly cleaned. After cleaning, store all components in a dry, well-ventilated place to prevent moisture, rust, or other damage, ensuring they maintain good performance for future use.

[0028] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An inert gas-confined high-temperature alloy welding device, comprising a welding nozzle component (1) and a gas confinement component (3), characterized in that: The lower end of the welding nozzle component (1) is fitted with an inert gas output end component (2), and the bottom end of the inert gas output end component (2) is fitted with a gas confinement component (3). The gas confinement component (3) includes an airtight cover (301), a sealing sleeve (302), a sealing ring (303), and a fixing seat (304). The sealing sleeve (302) is vertically installed in the middle of the airtight cover (301), and sealing rings (303) are symmetrically arranged at the left and right ends of the sealing sleeve (302). A fixing seat (304) is installed at the top edge of the sealing sleeve (302).

2. The inert gas automatic confinement type high-temperature alloy welding device according to claim 1, characterized in that, The welding nozzle component (1) includes a welding nozzle body (101), an outer end (102), a snap ring (103), and a snap ring seat (104). The top end of the welding nozzle body (101) is provided with an outer end (102), and a set of snap rings (103) are provided on the upper and lower outer sides of the lower end of the welding nozzle body (101). Furthermore, a set of snap ring seats (104) are provided on the upper and lower surfaces of the lower end of the welding nozzle body (101).

3. The inert gas automatic confinement type high-temperature alloy welding device according to claim 2, characterized in that, The external end (102) is used to connect the welding nozzle body (101) to external welding equipment to provide the necessary energy input for the welding process. The welding nozzle body (101) and the snap-fit ​​round seat (104) are integrated into one structure. The snap-fit ​​round seat (104) is symmetrically arranged on the outer sides of the welding nozzle body (101).

4. The inert gas automatic confinement type high-temperature alloy welding device according to claim 2, characterized in that, The inert gas output component (2) includes a stabilizing sleeve (201), a support base (202), an external gas valve (203), an outlet valve pipe (204), and a connecting round seat (205). The upper end of the stabilizing sleeve (201) is symmetrically and horizontally provided with support bases (202) on the left and right sides. The end of the support base (202) away from the stabilizing sleeve (201) is vertically installed with an external gas valve (203). The bottom of the end of the support base (202) away from the stabilizing sleeve (201) is vertically installed with an outlet valve pipe (204). The left and right sides of the outlet valve pipe (204) are symmetrically provided with connecting round seats (205).

5. The inert gas automatic confinement high-temperature alloy welding device according to claim 4, characterized in that, The stabilizing sleeve (201), the support base (202), and the connecting round base (205) are integrated into one structure, and the connecting round base (205) is arranged in a ring array structure with the stabilizing sleeve (201) as the center and has four groups distributed thereon.

6. The inert gas automatic confinement type high-temperature alloy welding device according to claim 4, characterized in that, The snap ring (103) and snap seat (104) are both matched with the inner wall of the stabilizing sleeve (201) to achieve a stable connection between the welding nozzle component (1) and the inert gas output end component (2). The gas outlet valve pipe (204) is made of high temperature resistant material.

7. The inert gas automatic confinement high-temperature alloy welding device according to claim 4, characterized in that, The welding nozzle component (1) and the inert gas output end component (2) are connected symmetrically at the top and bottom and horizontally threaded at the front and back. The inert gas output end component (2) and the gas constraint component (3) are connected horizontally with a second fixing bolt (5). The second fixing bolt (5) is arranged in a ring array structure with the gas constraint component (3) as the center and is distributed in four groups.

8. The inert gas automatic confinement high-temperature alloy welding device according to claim 7, characterized in that, The first combination bolt (4) is horizontally threaded and installed on the front and rear sides of the upper and lower ends of the stabilizing sleeve (201) and is threadedly connected to the snap-fit ​​round seat (104).

9. The inert gas automatic confinement type high-temperature alloy welding device according to claim 8, characterized in that, The second fixing bolt (5) has a horizontal thread that passes through the upper end of the fixing seat (304) and is threadedly connected to the connecting round seat (205).

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