Thick-wall micropore copper pipe
By applying silver tungsten alloy, chromium oxide and tungsten silver tungsten materials on the inner wall and outer surface of the central hole of the conductive nozzle copper tube, respectively, combined with hydrophobic and oxidative layers, the problems of oxidation and wear of the copper tube are solved, the wear resistance and service life are improved, and the flexibility of use is enhanced.
Patent Information
- Application Number
- CN202421869213.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The existing copper tubes for conductive nozzles are easily oxidized after long-term use, have low mechanical strength, and are prone to wear in the inner holes and surfaces, which affects the use effect.
The silver-tungsten alloy material is adhered to the inner wall of the central hole by electroless plating to form a first wear-resistant layer; the fluoropolymer hydrophobic layer and the electroless chromium oxide antioxidant layer are coated with the outside; the tungsten carbide silver-tungsten material is electroplated on the oxidation layer to form a second wear-resistant layer, and threads are provided at the connector head and the connecting groove for connection.
It significantly improves the wear resistance, hydrophobic and oxidation resistance of copper tubes, extends service life, and improves the flexibility and practicality of use.
Smart Images
Figure CN222925100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of copper tubes, in particular to a thick-walled micro-hole copper tube. Background Art
[0002] The thick-walled micro-hole copper tube for a contact tip is a kind of copper tube material specially applied to contact tips. This kind of copper tube has a relatively thick tube wall, which helps to increase its strength and durability and can withstand high temperature, abrasion and mechanical stress during the welding process. The micro-holes are used to improve the current distribution, making the current more uniform when contacting the welding wire, thereby improving the welding quality and stability.
[0003] At present, the copper tubes for contact tips usually have a relatively simple structure, mainly made of copper material, with a hole for inserting the welding wire in the center. After long-term use, the copper tubes made of copper material are prone to oxidation, resulting in performance degradation. Moreover, the mechanical strength of the copper material is relatively low, and the inner hole and the surface are prone to abrasion, affecting the use effect. Therefore, in view of the above problems, we propose a new type of thick-walled micro-hole copper tube. Summary of the Utility Model
[0004] The utility model mainly provides a thick-walled micro-hole copper tube with wear resistance, not easy to oxidize and a long service life.
[0005] To achieve the above object, the utility model adopts the following technical scheme: a thick-walled micro-hole copper tube, including a copper tube body. A through center hole is opened at the center of the inside and outside of the copper tube body. A hydrophobic layer is arranged on the outer surface of the copper tube body. An antioxidant layer is arranged outside the hydrophobic layer. A second wear-resistant layer is arranged outside the antioxidant layer. A first wear-resistant layer is arranged on the inner wall of the center hole.
[0006] Further, the outer diameter of the copper tube body is not greater than 14mm ± 0.5mm, the aperture of the center hole is not less than 0.3mm, and the thickness of the first wear-resistant layer is 0.2mm. The first wear-resistant layer is formed by electroless plating to make the silver-tungsten alloy material adhere to the inner wall of the center hole. Therefore, the first wear-resistant layer combines the good electrical conductivity of silver and the high hardness and wear resistance of tungsten. The center hole inside the copper tube body is mainly used for inserting the welding wire, and the first wear-resistant layer is sprayed on the inner wall of the center hole, which can effectively improve the wear resistance of the inner wall of the center hole, so that the center hole can maintain a good state after long-term use of the copper tube body.
[0007] Further, the thickness of the hydrophobic layer is 0.2mm, and the thickness of the antioxidant layer is 0.3mm. The hydrophobic layer is a fluoropolymer coating, which can prevent liquid attachment and penetration. The antioxidant layer is formed by electroless plating to make chromium material adhere to the surface of the hydrophobic layer to form a dense chromium oxide protective layer, which can effectively prevent oxygen intrusion, thereby effectively improving the hydrophobic effect and antioxidant effect of the outside of the copper tube body.
[0008] Furthermore, the thickness of the second wear-resistant layer is greater than 0.5 mm. The second wear-resistant layer is formed by electroplating tungsten carbide silver tungsten material on the surface of the antioxidant layer, and it has a relatively thick thickness. Tungsten carbide has extremely high hardness and excellent wear resistance, which can significantly improve the wear resistance of the surface of the copper tube body.
[0009] Furthermore, one end of the copper tube body is fixedly connected with a connector, and a connection groove is formed at the position of the other end of the copper tube body outside the central hole. During use, the connector at the end of the copper tube body can be connected to the connection groove at the tail of another copper tube body, thereby extending the length of the copper tube body, and then combining into micro-hole copper tubes of different length models, improving the flexibility of use and having relatively high practicality.
[0010] Furthermore, both the connector and the connection groove are circularly arranged. The outer surface of the connector is provided with a first external thread, and the inner wall of the connector is provided with a second external thread. The first external thread and the second external thread are mainly used in cooperation with the first internal thread and the second internal thread.
[0011] Furthermore, the outer side wall of the connection groove is provided with a first internal thread, and the inner side wall of the connection groove is provided with a second internal thread. The pitch and helix direction of the first external thread, the second external thread, the first internal thread and the second internal thread are the same. The thread shape of the first external thread is a standard triangle, and the thread shape of the first internal thread is also a standard triangle. The thread depths and thread shapes of the two match. The thread shape of the second external thread is a rectangle, and the thread shape of the second internal thread is also a rectangle. The thread depths and thread shapes of the two match. Moreover, the helix directions of the first external thread, the second external thread, the first internal thread and the second internal thread are all right-handed and the pitches are equal. Therefore, during the process of the rotational connection between the connector and the connection groove, the inner side and the outer side will be thread-connected synchronously, and the connection effect is good, and it can withstand a large tensile force without loosening.
[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.
[0013] 1. In the present utility model, the silver tungsten alloy material is attached to the inner wall of the central hole of the first wear-resistant layer by electroless plating, so that the central hole can maintain a good state after long-term use of the copper tube body. The hydrophobic layer of the external fluoropolymer coating can prevent liquid attachment and penetration. Chromium material is attached to the surface of the hydrophobic layer by electroless plating to form a dense chromium oxide protective layer, which can effectively prevent oxygen intrusion. Tungsten carbide silver tungsten material is attached to the surface of the antioxidant layer by electroplating, and the second wear-resistant layer with a relatively thick thickness can significantly improve the wear resistance of the surface of the copper tube body. Therefore, the copper tube body has excellent wear resistance, hydrophobicity and antioxidant properties, relatively high mechanical strength, and a long service life.
[0014] 2. In the present utility model, under the action of the first external thread, the second external thread, the first internal thread and the second internal thread, the copper tube body can connect the connecting head at the end with the tail connecting groove of another copper tube body, thereby extending the length of the copper tube body, and then combining into micro-hole copper tubes of different length models, improving the flexibility of use and having high practicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. 1 is a perspective view of a thick-walled micro-hole copper tube proposed by the present utility model;
[0016] Figure 2 FIG. 2 is another perspective view of a thick-walled micro-hole copper tube proposed by the present utility model;
[0017] Figure 3 FIG. 3 is a cross-sectional view of a thick-walled micro-hole copper tube proposed by the present utility model;
[0018] Figure 4 FIG. 4 is a partial structural schematic diagram of a thick-walled micro-hole copper tube proposed by the present utility model.
[0019] Legend: 1. Copper tube body; 11. Central hole; 2. First wear-resistant layer; 21. Hydrophobic layer; 22. Antioxidant layer; 23. Second wear-resistant layer; 3. Connecting head; 31. First external thread; 32. Second external thread; 4. Connecting groove; 41. First internal thread; 42. Second internal thread. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0021] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a thick-walled micro-hole copper tube, including a copper tube body 1, a through central hole 11 is opened at the center of the external and internal parts of the copper tube body 1, a hydrophobic layer 21 is arranged on the outer surface of the copper tube body 1, an antioxidant layer 22 is arranged outside the hydrophobic layer 21, a second wear-resistant layer 23 is arranged outside the antioxidant layer 22, and a first wear-resistant layer 2 is arranged on the inner wall of the central hole 11.
[0023] As Figures 1-4As shown, the outer diameter of the copper tube body 1 is not greater than 14mm ± 0.5mm, the aperture of the central hole 11 is not less than 0.3mm, and the thickness of the first wear-resistant layer 2 is 0.2mm. The first wear-resistant layer 2 is formed by electroless plating to attach a silver-tungsten alloy material to the inner wall of the central hole 11. Therefore, the first wear-resistant layer 2 combines the good electrical conductivity of silver and the high hardness and wear resistance of tungsten. The central hole 11 inside the copper tube body 1 is mainly used for inserting welding wires, and the first wear-resistant layer 2 is sprayed on the inner wall of the central hole 11, which can effectively improve the wear resistance of the inner wall of the central hole 11, so that the central hole 11 can maintain a good state after the long-term use of the copper tube body 1.
[0024] As Figures 1-4 shown, the thickness of the hydrophobic layer 21 is 0.2mm, and the thickness of the antioxidant layer 22 is 0.3mm. The hydrophobic layer 21 is a fluoropolymer coating that can prevent liquid attachment and penetration. The antioxidant layer 22 is formed by electroless plating to attach a chromium material to the surface of the hydrophobic layer 21 to form a dense chromium oxide protective layer, which can effectively prevent oxygen intrusion, thereby effectively improving the hydrophobic and antioxidant effects on the outside of the copper tube body 1.
[0025] As Figures 1-4 shown, the thickness of the second wear-resistant layer 23 is greater than 0.5mm. The second wear-resistant layer 23 is formed by electroplating to attach a tungsten carbide-silver tungsten material to the surface of the antioxidant layer 22, and the thickness is relatively thick. Tungsten carbide has extremely high hardness and excellent wear resistance, which can significantly improve the wear resistance of the surface of the copper tube body 1.
[0026] As Figures 1-3 shown, one end of the copper tube body 1 is fixedly connected to the connector 3, and a connection groove 4 is opened at the position outside the central hole 11 at the other end of the copper tube body 1. During use, the copper tube body 1 can connect the connector 3 at the end with the connection groove 4 at the tail of another copper tube body 1, thereby extending the length of the copper tube body 1, and then combining into microporous copper tubes of different length models, improving the flexibility of use and having high practicality.
[0027] As Figures 1-3 shown, both the connector 3 and the connection groove 4 are circularly arranged. The outer surface of the connector 3 is provided with a first external thread 31, and the inner wall of the connector 3 is provided with a second external thread 32. The first external thread 31 and the second external thread 32 are mainly used in cooperation with the first internal thread 41 and the second internal thread 42.
[0028] As Figures 1-3As shown, the outer surface of the connecting groove 4 is provided with a first internal thread 41, and the inner surface of the connecting groove 4 is provided with a second internal thread 42. The pitches and helix directions of the first external thread 31, the second external thread 32, the first internal thread 41 and the second internal thread 42 are the same. The thread shape of the first external thread 31 is a standard triangle, and the thread shape of the first internal thread 41 is also a standard triangle. Their thread depths and thread shapes match. The thread shape of the second external thread 32 is rectangular, and the thread shape of the second internal thread 42 is also rectangular. Their thread depths and thread shapes match. Moreover, the helix directions of the first external thread 31, the second external thread 32, the first internal thread 41 and the second internal thread 42 are all right-handed and the pitches are equal. Therefore, during the process of the rotary connection between the connector 3 and the connecting groove 4, the inner and outer sides will be threadedly connected synchronously, and the connection effect is good, and it can withstand a large tensile force without loosening.
[0029] The usage method and working principle of this device: For this micro-hole copper tube, since a first wear-resistant layer 2 made of silver-tungsten alloy material is attached to the inner wall of the central hole 11 by means of electroless plating on the inner wall of the central hole 11, the central hole 11 can maintain a good state after long-term use of the copper tube body 1. The hydrophobic layer 21 of the external fluoropolymer coating can prevent liquid attachment and penetration. Chromium material is attached to the surface of the hydrophobic layer 21 by means of electroless plating to form a dense chromium oxide protective layer, which can effectively prevent oxygen intrusion. Tungsten carbide silver-tungsten material is attached to the surface of the antioxidant layer 22 by means of electroplating, and the relatively thick second wear-resistant layer 23 can significantly improve the wear resistance of the surface of the copper tube body 1. Therefore, the copper tube body 1 has excellent wear resistance, hydrophobicity and antioxidant properties, and has relatively high mechanical strength and a long service life. At the same time, under the action of the first external thread 31, the second external thread 32, the first internal thread 41 and the second internal thread 42, the copper tube body 1 can connect the connector 3 at the end with the connecting groove 4 at the tail of another copper tube body 1, so as to extend the length of the copper tube body 1, and then combine micro-hole copper tubes of different length models, improving the usage flexibility and having relatively high practicality.
[0030] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent change equivalent embodiments and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims
1. A thick-walled microporous copper tube, comprising a copper tube body (1), characterized in that: A central hole (11) is provided at the center of the outer interior of the copper tube body (1); a hydrophobic layer (21) is provided on the outer surface of the copper tube body (1); an anti-oxidation layer (22) is provided on the outside of the hydrophobic layer (21); a second wear-resistant layer (23) is provided on the outside of the anti-oxidation layer (22); and a first wear-resistant layer (2) is provided on the inner surface wall of the central hole (11).
2. A thick-walled microporous copper tube according to claim 1, characterized in that: The outer diameter of the copper tube body (1) is not greater than 14 mm ± 0.5 mm, the diameter of the central hole (11) is not less than 0.3 mm, and the thickness of the first wear-resistant layer (2) is 0.2 mm.
3. A thick-walled microporous copper tube according to claim 2, characterized in that: The thickness of the hydrophobic layer (21) is 0.2 mm, and the thickness of the anti-oxidation layer (22) is 0.3 mm.
4. A thick-walled microporous copper tube according to claim 3, characterized in that: The thickness of the second wear-resistant layer (23) is greater than 0.5 mm.
5. A thick-wall microporous copper tube according to claim 4, characterized in that: A connector (3) is fixed to one end of the copper tube body (1), and a connection groove (4) is provided at the other end of the copper tube body (1) at a position outside the central hole (11).
6. A thick-wall microporous copper tube according to claim 5, characterized in that: The connecting head (3) and the connecting groove (4) are both arranged in a circular shape; the outer surface of the connecting head (3) is provided with a first external thread (31); and the inner surface wall of the connecting head (3) is provided with a second external thread (32).
7. A thick-walled microporous copper tube according to claim 6, characterized in that: The outer surface wall of the connecting groove (4) is provided with a first internal thread (41), and the inner surface wall of the connecting groove (4) is provided with a second internal thread (42); the pitch and spiral direction of the first external thread (31), the second external thread (32), the first internal thread (41) and the second internal thread (42) are consistent.