Anti-corrosion aluminum alloy welding wire

Abstract

The utility model discloses an anti-corrosion aluminum alloy welding wire, which particularly relates to the field of aluminum alloy welding and comprises a welding wire body, a first thickening layer is arranged outside the welding wire body, an anti-corrosion layer is sleeved outside the first thickening layer, a second thickening layer is sleeved outside the anti-corrosion layer, a welding wire head is connected to the bottom end of the welding wire body, and the welding wire head comprises a connecting block, a first connecting rod and a second connecting rod. According to the aluminum alloy welding wire, the thickening layer is arranged, the thickening layer is arranged outside the welding wire body in a sleeving mode, the thickness of the welding wire body can be increased through the thickening layer, in the surface surfacing process of an aluminum alloy structure, the thickness of the welding wire body can be increased, and the thickness of the welding wire body can be increased; combination welding operation of a plurality of thin aluminum alloy welding wires is not needed, the aluminum alloy welding wire is adopted to conduct surface surfacing of an aluminum alloy structure, the welding efficiency is high, and the welding effect is better.

Description

Technical Field

[0001] The utility model relates to the field of aluminum alloy welding, in particular to a corrosion-resistant aluminum alloy welding wire. Background Art

[0002] Aluminum alloy welding is a connection process for aluminum alloy materials, which involves a variety of welding methods and techniques. Aluminum alloy welding usually uses aluminum alloy welding wire, and the welding of aluminum alloy welding wire mainly adopts resistance welding. Aluminum alloy welding wire is generally divided into homogeneous welding wire, heterogeneous welding wire and filler welding wire according to the material. The material selection of aluminum alloy welding wire is usually selected according to the welding requirements and the characteristics of the parent material to ensure the welding quality and the performance of the joint.

[0003] After searching, the patent with the publication number CN216097081U in China and the name of a corrosion-resistant aluminum alloy welding wire disclosed a welding wire body, an anti-corrosion mechanism and a bolting mechanism. The outer surface and the bottom end of the welding wire body are provided with an anti-corrosion mechanism, and the anti-corrosion mechanism includes a passivation layer, an electroplating layer and a spacer, and the passivation layer and the electroplating layer are arranged on the outer surface of the welding wire body from the inside to the outside, and the spacer is sleeved on the bottom end of the welding wire body, which solves the problem of easy corrosion damage. However, the diameter of the aluminum alloy welding wire is generally a fixed size. When welding an aluminum alloy device, there are usually welding spots of different sizes on the aluminum alloy device, and welding wires of multiple diameters need to be prepared. In the actual welding process, it is also difficult for the user to quickly and accurately select the welding wire that is compatible with the welding spot. In the welding work of the entire aluminum alloy device, the welding efficiency is low and the welding difficulty is large. Therefore, the utility model provides a corrosion-resistant aluminum alloy welding wire to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a corrosion-resistant aluminum alloy welding wire to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A corrosion-resistant aluminum alloy welding wire comprises a welding wire body, wherein a thickening layer 1 is arranged on the outside of the welding wire body, an anti-corrosion layer is arranged on the outside of the thickening layer 1, a thickening layer 2 is arranged on the outside of the anti-corrosion layer, and a welding wire head is connected to the bottom end of the welding wire body.

[0007] As a further solution of the utility model, the welding wire head includes: a connecting block, a conical head is fixed to the bottom of the connecting block, and a round head is inserted into the bottom of the conical head.

[0008] As a further solution of the utility model, a plug hole is provided at the bottom of the conical head, the top of the round head is a concave structure, and an insert rod matching the plug hole is fixed to the concave wall.

[0009] As a further solution of the utility model, a thread groove is provided at the bottom of the welding wire body, and a thread column is provided at the top of the connecting block, and the thread column is adapted to the thread groove.

[0010] As a further solution of the utility model, a filling groove is opened in the middle of the top of the welding wire body.

[0011] As a further solution of the utility model, the outer walls of the anti-corrosion layer, the thickened layer 1 and the welding wire body are all provided with convex strips, and the inner walls of the anti-corrosion layer, the thickened layer 1 and the welding wire body are all provided with strip grooves matching with the convex strips.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the utility model is used, the thickening layer is set, and the thickening layer is sleeved on the outside of the welding wire body. The thickness of the welding wire body can be increased by the thickening layer, which is convenient for the user to adjust the thickness of the aluminum alloy welding wire. In the process of surface cladding welding of the aluminum alloy structure, there is no need to use a plurality of thin aluminum alloy welding wires for combined welding operations. The use of the aluminum alloy welding wire of the utility model for surface cladding welding of the aluminum alloy structure has higher welding efficiency and better welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is an exploded view of the connection block and the circular head of the utility model;

[0016] Figure 3 It is a cross-sectional view of the connection block and the circular head of the utility model;

[0017] Figure 4 It is an exploded view of the welding wire assembly of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the welding wire body of the utility model.

[0019] In the figure: 1. Anti-corrosion layer; 2. Thickening layer 1; 3. Welding wire body; 4. Filling groove; 5. Thickening layer 2; 6. Connecting block; 7. Round head; 8. Threaded column; 9. Conical head; 10. Insert rod; 11. Socket; 12. Raised strip; 13. Threaded groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 to Figure 5 In an embodiment of the utility model, a corrosion-resistant aluminum alloy welding wire includes a welding wire body 3, a thickening layer 2 is arranged on the outside of the welding wire body 3, an anti-corrosion layer 1 is sleeved on the outside of the thickening layer 2, a thickening layer 2 5 is sleeved on the outside of the anti-corrosion layer 1, and a welding wire head is connected to the bottom end of the welding wire body 3; specifically, the anti-corrosion layer 1, the thickening layer 2 and the welding wire body 3 are all made of the same material, and the surface of the anti-corrosion layer 1 is electroplated so that the surface of the anti-corrosion layer 1 has an anti-corrosion effect. Under the protection of the anti-corrosion layer 1, the welding wire body 3 can be wrapped and protected, so that the welding wire body 3 is not contaminated by external dirt.

[0022] The welding wire head includes: a connecting block 6, a conical head 9 is fixed at the bottom of the connecting block 6, a round head 7 is inserted at the bottom of the conical head 9, a socket 11 is provided at the bottom of the conical head 9, the top of the round head 7 is a concave structure, and a plug 10 matching the socket 11 is fixed on the concave wall; specifically, during the process of switching from the round head 7 to the conical head 9, the round head 7 can be directly pinched by hand, the round head 7 drives the plug 10 and disengages from the socket 11, thereby exposing the conical head 9 to the outside, when the head of the welding wire is the round head 7, the round head welding wire can provide a uniform melting rate to help form a uniform weld, and the conical head 9 helps to concentrate heat and improve welding accuracy.

[0023] A thread groove 13 is provided at the bottom of the welding wire body 3, and a thread column 8 is provided at the top of the connecting block 6, and the thread column 8 is adapted to the thread groove 13. Specifically, in an aluminum alloy device, since the aluminum alloy device has welding points with gaps of different sizes, before the welding work begins, the welding points are contacted with welding wire head structures of different shapes, which can fill the welding points more evenly, and the user can switch between the conical head 9 and the round head 7.

[0024] like Figure 4 and Figure 5 As shown, the outer walls of the anti-corrosion layer 1, the thickened layer 2 and the welding wire body 3 are all provided with convex strips 12, and the inner walls of the anti-corrosion layer 1, the thickened layer 2 and the welding wire body 3 are all provided with strip grooves matching with the convex strips 12; specifically, the anti-corrosion layer 1 is sleeved on the outside of the thickened layer 2, and the convex strips 12 on the outer wall of the thickened layer 2 are matched with the strip grooves on the inner wall of the anti-corrosion layer 1.

[0025] like Figure 1As shown, a filling groove 4 is opened in the middle of the top of the welding wire body 3. Specifically, chemical agents can be filled in the filling groove 4. The chemical agents mainly include deoxidizers: helping to remove oxygen in the welding area, reducing oxidation reactions, and improving the quality of the weld; slag-forming agents: forming slag during the welding process, covering the weld surface, and protecting the molten metal from harmful substances in the air; alloying agents: alloy elements added as needed can adjust the chemical composition and properties of the weld.

[0026] The working principle of the utility model is:

[0027] When the utility model is used, during the welding work of the aluminum alloy device, for the narrow welding point of the aluminum alloy device, the user manually pulls out the thickening layer 2 5, the anti-corrosion layer 1 and the thickening layer 1 2, and finally retains the welding wire body 3, and the user places the circular head 7 of the welding wire head at the end of the welding wire body 3 at the welding point position, heats the welding wire head with a resistance welding gun, and adopts a hand-held pushing method of the welding wire body 3 to melt and weld the welding wire body 3 at the welding point to form a weld seam, and for the larger welding point of the aluminum alloy device, the user directly uses the aluminum alloy welding wire formed by the thickening layer 2 5, the anti-corrosion layer 1, the thickening layer 1 2 and the welding wire body 3 for surfacing, and adopts the same welding method as mentioned above, the user places the circular head 7 of the welding wire head at the end of the welding wire body 3 at the welding point position, heats the welding wire head with a resistance welding gun, and adopts a hand-held pushing method of the welding wire body 3 to melt and weld the welding wire body 3 at the welding point to form a weld seam, and finally completes the welding.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A corrosion-resistant aluminum alloy welding wire, comprising a welding wire body (3), characterized in that: The outside of the welding wire body (3) is provided with a thickening layer 1 (2), the outside of the thickening layer 1 (2) is provided with an anti-corrosion layer (1), the outside of the anti-corrosion layer (1) is provided with a thickening layer 2 (5), and the bottom end of the welding wire body (3) is connected to a welding wire head.

2. The corrosion-resistant aluminum alloy welding wire according to claim 1, characterized in that: The welding wire head comprises: a connecting block (6), a conical head (9) being fixed to the bottom of the connecting block (6), and a round head (7) being inserted into the bottom of the conical head (9).

3. The corrosion-resistant aluminum alloy welding wire according to claim 2, characterized in that: The bottom of the conical head (9) is provided with an insertion hole (11), the top of the circular head (7) is in a concave structure, and an insertion rod (10) matching the insertion hole (11) is fixed to the concave wall.

4. The corrosion-resistant aluminum alloy welding wire according to claim 2, characterized in that: A thread groove (13) is provided at the bottom of the welding wire body (3), and a thread column (8) is provided at the top of the connecting block (6), wherein the thread column (8) is adapted to the thread groove (13).

5. The corrosion-resistant aluminum alloy welding wire according to claim 1, characterized in that: A filling groove (4) is provided in the middle of the top of the welding wire body (3).

6. The corrosion-resistant aluminum alloy welding wire according to claim 1, characterized in that: The outer walls of the anti-corrosion layer (1), the thickened layer one (2) and the welding wire body (3) are all provided with convex strips (12), and the inner walls of the anti-corrosion layer (1), the thickened layer one (2) and the welding wire body (3) are all provided with strip grooves matching the convex strips (12).

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