A kind of surfacing equipment for thick-walled metal high-temperature corrosion resistant alloy

By designing a welding equipment for thick-walled metal high-temperature corrosion resistant alloys, and by using a combination of adjustable welding torch and grinder, the problem of reduced bonding strength caused by interlayer oxide layer was solved, and the high strength and corrosion resistance of the weld layer were improved.

CN224543751UActive Publication Date: 2026-07-24YINGKOU BAOWEI PIPE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YINGKOU BAOWEI PIPE CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

When welding thick-walled metal high-temperature corrosion resistant alloys in multiple layers, the presence of oxide layers between the layers leads to reduced bonding strength, defects such as incomplete fusion and porosity, which weaken the overall mechanical properties and corrosion resistance of the weld overlay.

Method used

A welding equipment comprising components such as an electric welding machine, a rotating motor, a rotating rod, a support arm, an adjustable welding torch, an adjustable grinder, an extension plate, a slide rail, and a bracket has been designed. By using the adjustable welding torch and the adjustable grinder in combination, welding and grinding can be carried out simultaneously to remove the oxide film on the weld surface and improve the bonding strength and corrosion resistance of the weld layer.

Benefits of technology

By removing the oxide film from the weld surface, the overall strength and corrosion resistance of the weld layer are enhanced, ensuring the strength and quality of the weld.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of surfacing equipment for thick wall metal high-temperature corrosion-resistant alloy, welding machine left side is installed and rotates motor, rotating motor left side is installed with rotating rod, rotating rod left side is installed with support arm, the adjusting welding torch of support arm left side top is installed, and the adjusting polisher of support arm left side bottom is installed, welding machine bottom left side is installed with extension plate, the slide rail of extension plate top is opened, the left and right two supports of slide rail top are installed, the pipeline to be processed is installed on the top of both sides supports, the pipeline to be processed is moved on the slide rail again through bottom support, so that pipeline inner wall is contacted with adjusting welding torch and adjusting polisher and is processed. The utility model is reasonably designed, when facing tubular inner wall surfacing, it can realize welding and polishing simultaneously, remove the oxide film on the surface of weld, increase the overall strength and corrosion resistance of weld layer.
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Description

Technical Field

[0001] This utility model relates to the field of welding equipment, and in particular to a welding equipment for thick-walled metal high-temperature corrosion resistant alloys. Background Technology

[0002] Currently, plasma arc welding technology is mainly used for surfacing thick-walled metal alloys resistant to high-temperature corrosion. Its high-temperature plasma arc (10,000–50,000 K) allows for precise control of heat input, with a dilution rate as low as 5%, making it suitable for surfacing self-fluxing alloys such as nickel-based and cobalt-based alloys. However, in multi-layer welding, the presence of interlayer oxide layers significantly reduces the bonding strength: oxide films (such as Fe2O3 and Cr2O3) formed during the cooling process of the preceding weld seam hinder the metallurgical bonding of subsequent deposited metals, leading to defects such as incomplete fusion and porosity, thus weakening the overall mechanical properties and corrosion resistance of the weld overlay. Utility Model Content

[0003] The purpose of this invention is to provide a welding equipment for thick-walled metal high-temperature corrosion resistant alloys, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A welding apparatus for surfacing thick-walled metal high-temperature corrosion resistant alloys includes an electric welding machine, a rotating motor, a rotating rod, a support arm, an adjustable welding torch, an adjustable grinder, an extension plate, a slide rail, a bracket, and a pipe to be processed. The electric welding machine has a rotating motor mounted on its upper left side, a rotating rod mounted on the left side of the rotating motor, a support arm mounted on the left side of the rotating rod, an adjustable welding torch mounted on the top left side of the support arm, and an adjustable grinder mounted on the bottom left side of the support arm. An extension plate is mounted on the bottom left side of the electric welding machine, and a slide rail is formed at the top of the extension plate. Two brackets are mounted on the top of the slide rail, and the pipe to be processed is mounted on the top of the two side brackets. The pipe to be processed moves along the slide rail via the bottom bracket, causing the inner wall of the pipe to contact the adjustable welding torch and the adjustable grinder for processing.

[0005] Preferably, the welding equipment for thick-walled metal high-temperature corrosion resistant alloys further includes a welding wire feeding motor and a welding wire coil. The welding wire feeding motor is installed at the front end of the support arm, and the welding wire coil is installed inside the welding wire feeding motor.

[0006] Preferably, the adjustable welding torch further includes an adjusting bolt, a swing arm, and a welding torch. The swing arm is installed at the top of the front end of the support arm via the adjusting bolt, and the welding torch is installed at the top of the swing arm. The welding torch is connected to the welding wire at the front end of the welding wire coil.

[0007] Preferably, the adjustable grinder further includes an adjusting bolt, a swing arm, a micro motor, and a grinding wheel. The swing arm is installed at the bottom front end of the support arm via the adjusting bolt. The micro motor is installed at the front end of the bottom of the swing arm, and the grinding wheel is installed at the rear end of the bottom of the swing arm, with the grinding wheel connected to the micro motor.

[0008] The beneficial effects of this utility model are: This utility model is reasonably designed and can achieve simultaneous welding and grinding when facing the inner wall of a tubular structure, thereby removing the oxide film on the surface of the weld and increasing the overall strength and corrosion resistance of the weld layer. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the welding equipment for thick-walled metal high-temperature corrosion resistant alloys according to this utility model; Figure 2 This is a schematic diagram of the structure of the welding equipment for thick-walled metal high-temperature corrosion resistant alloys according to this utility model.

[0010] In the diagram: 1. Welding machine, 2. Rotating motor, 3. Rotating rod, 4. Support arm, 5. Adjusting welding torch, 6. Adjusting grinder, 7. Extension plate, 8. Slide rail, 9. Bracket, 10. Pipe to be processed, 11. Welding wire feeding motor, 12. Welding wire coil, 13. Adjusting bolt, 14. Swing arm, 15. Welding torch, 16. Micro motor, 17. Grinding wheel. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-2As shown, a welding equipment for surfacing thick-walled metal high-temperature corrosion resistant alloys includes an electric welding machine 1, a rotating motor 2, a rotating rod 3, a support arm 4, an adjustable welding torch 5, an adjustable grinder 6, an extension plate 7, a slide rail 8, a bracket 9, and a pipe to be processed 10. The electric welding machine 1 has the rotating motor 2 mounted on its upper left side, the rotating rod 3 mounted on its left side, the support arm 4 mounted on its left side, the adjustable welding torch 5 mounted on its top left side, and the adjustable grinder 6 mounted on its bottom left side. The electric welding machine 1 has an extension plate 7 mounted on its bottom left side, the slide rail 8 having a top opening on its top, and two brackets 9 mounted on the top of the slide rail 8. The pipe to be processed 10 is mounted on the top of the two brackets 9. The pipe to be processed 10 moves along the slide rail 8 via the bottom bracket 9, so that the inner wall of the pipe comes into contact with the adjustable welding torch 5 and the adjustable grinder 6 for processing. The welding equipment for thick-walled metal high-temperature corrosion resistant alloys further includes a wire feeding motor 11 and a wire coil 12. The wire feeding motor 11 is installed at the front end of the support arm 4, and the wire coil 12 is installed inside the wire feeding motor 11. The adjustable welding torch 5 further includes an adjusting bolt 13, a swing arm 14, and a welding torch 15. The swing arm 14 is installed at the top of the front end of the support arm 4 via the adjusting bolt 13, and the welding torch 15 is installed at the top of the swing arm 14. The welding torch 15 is connected to the front end of the wire coil 12. The adjustable grinder 6 further includes an adjusting bolt 13, a swing arm 14, a micro motor 16, and a grinding wheel 17. The swing arm 14 is installed at the bottom of the front end of the support arm 4 via the adjusting bolt 13. The micro motor 16 is installed at the front end of the bottom of the swing arm 14, and the grinding wheel 17 is installed at the rear end of the bottom of the swing arm 14. The grinding wheel 17 is connected to the micro motor 16.

[0012] The working principle of this utility model is as follows: The pipe 10 to be processed is fixed by the bracket 9, and the bracket 9 and the pipe 10 to be processed can be moved as a whole to the right of the welding machine 1 by the slide rail 8. The welding position of the inner wall of the pipe is moved to the adjusting welding gun 5 and the adjusting grinder 6. The adjusting welding gun 5 and the adjusting grinder 6 are rotated by the rotating motor 2. After the adjusting welding gun 5 is used for welding, the adjusting grinder 6 grinds the weld to remove the oxide layer of the weld, so that the next welding is more solid. The adjusting welding gun 5 and the adjusting grinder 6 control the angle of the swing arm 14 by the adjusting bolt 13 to match the inner diameter of the pipe 10 to be processed.

[0013] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary in all respects, and thus equivalent variations within the scope of this invention are included within its scope.

Claims

1. A welding equipment for thick-walled metal high-temperature corrosion resistant alloys, comprising an electric welding machine (1), a rotating motor (2), a rotating rod (3), a support arm (4), an adjustable welding torch (5), an adjustable grinder (6), an extension plate (7), a slide rail (8), a bracket (9), and a pipe to be processed (10), characterized in that: The welding machine (1) has a rotating motor (2) installed on its left side. The rotating motor (2) has a rotating rod (3) installed on its left side. The rotating rod (3) has a support arm (4) installed on its left side. The support arm (4) has an adjustable welding gun (5) installed on its top left side. The support arm (4) has an adjustable grinder (6) installed on its bottom left side. The welding machine (1) has an extension plate (7) installed on its bottom left side. The extension plate (7) has a slide rail (8) on its top. The slide rail (8) has two brackets (9) installed on its top. The pipe to be processed (10) is installed on the top of the two side brackets (9). The pipe to be processed (10) moves on the slide rail (8) through the bottom bracket (9) so that the inner wall of the pipe comes into contact with the adjustable welding gun (5) and the adjustable grinder (6) for processing.

2. The welding equipment for thick-walled metal high-temperature corrosion resistant alloys according to claim 1, characterized in that: The welding equipment for thick-walled metal high-temperature corrosion resistant alloys also includes a welding wire feeding motor (11) and a welding wire roll (12). The welding wire feeding motor (11) is installed at the front end of the support arm (4), and the welding wire roll (12) is installed inside the welding wire feeding motor (11).

3. The welding equipment for thick-walled metal high-temperature corrosion resistant alloys according to claim 2, characterized in that: The adjustable welding torch (5) also includes an adjusting bolt (13), a swing arm (14) and a welding torch (15). The swing arm (14) is installed on the top of the front end of the support arm (4) through the adjusting bolt (13). The welding torch (15) is installed on the top of the swing arm (14), and the welding torch (15) is connected to the welding wire at the front end of the welding wire coil (12).

4. The welding equipment for thick-walled metal high-temperature corrosion resistant alloys according to claim 3, characterized in that: The adjustable grinder (6) also includes an adjusting bolt (13), a swing arm (14), a micro motor (16), and a grinding wheel (17). The swing arm (14) is installed at the bottom front end of the support arm (4) by the adjusting bolt (13). The micro motor (16) is installed at the front end of the bottom of the swing arm (14). The grinding wheel (17) is installed at the rear end of the bottom of the swing arm (14), and the grinding wheel (17) is connected to the micro motor (16).