High-strength steel gas shielded solid welding wire

Abstract

The utility model relates to the technical field of welding wires, and discloses a high-strength steel gas shield solid welding wire which comprises a flux-cored layer, an alloy layer, a heat-resistant protective layer and a protective layer, the welding wire is of a multi-layer structural design, all the layers are tightly combined to form an efficient and synergistic working system, and the flux-cored layer provides alloy powder, slag former and arc stabilizer required by welding; the alloy layer ensures the strength and toughness of a welding joint; the heat-resistant protective layer and the aerogel heat-insulation filler filled in the heat-resistant protective layer can effectively isolate high temperature and protect the internal structure of the welding wire; the protective layer provides external protection to prevent the welding wire from being damaged; the fish-scale-shaped steel sheet layers not only increase the contact area of the welding wire and the welding base material, but also form an effective heat dissipation channel through the gaps between the steel sheet layers and the heat dissipation air channels formed in the surfaces of the steel sheet layers.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding wire technical field, concretely is a kind of high-strength steel gas protection solid core welding wire. BACKGROUND

[0002] With the continuous progress of industrial technology, welding technology is increasingly widely used in various fields, especially in the environment with high strength, high toughness and high temperature resistance requirements, the performance of welding material becomes the key factor affecting the welding quality and structural stability, and a large amount of heat is often generated in the welding process of traditional welding wire, and the existing heat dissipation mechanism often cannot meet the needs of high-strength and high-speed welding. Heat accumulation not only causes the overheating and deformation of welded joint, but also affects the organizational structure and mechanical properties of weld, therefore, we provide a kind of high-strength steel gas protection solid core welding wire. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of high-strength steel gas protection solid core welding wire, solves the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of high-strength steel gas protection solid core welding wire, including medicine core layer, alloy layer, heat-resistant protective layer and protective layer, this welding wire is medicine core layer, alloy layer, heat-resistant protective layer and protective layer from inside to outside in turn, still include:

[0005] Fish scale steel sheet layer is arranged on the outer surface of protective layer, fish scale steel sheet layer not only increases the contact area of welding wire and welding base material, improves the strength of welded joint, but also helps the rapid dissipation of heat in the welding process through the gap between steel sheet layer, improves the heat dissipation efficiency.

[0006] Preferably, the alloy layer is made of aluminum alloy, and the middle part of the alloy layer is hollowed out and fixedly installed with the medicine core layer.

[0007] Preferably, the heat-resistant protective layer is arranged on the side of the alloy layer away from the heat-resistant protective layer, and the heat-resistant protective layer is filled with heat insulation filler.

[0008] Preferably, the material of the heat-resistant protective layer is copper alloy, and the heat insulation filler is gas condensation.

[0009] Preferably, a plurality of fish scale steel sheet layers are fixedly installed on the outer surface of the protective layer.

[0010] Preferably, a plurality of heat dissipation air ducts are arranged on the surface of the fish scale steel sheet layer, and the plurality of heat dissipation air ducts are symmetrically arranged on the fish scale steel sheet layer.

[0011] Compared with the prior art, the utility model provides a kind of high-strength steel gas protection solid core welding wire, with the following beneficial effects:

[0012] 1. This high-strength steel gas-shielded solid welding wire uses aluminum alloy as the main material of the alloy layer. Aluminum alloy has good mechanical properties and toughness, and can withstand large stress and deformation during the welding process, ensuring the stability and reliability of the welded joint.

[0013] 2. This high-strength steel gas-shielded solid welding wire features a fish-scale-shaped steel sheet layer that not only increases the contact area between the welding wire and the base material, but also forms an effective heat dissipation channel through the gaps between the steel sheet layers and the heat dissipation air channels opened on the surface. This accelerates the dissipation of heat during the welding process, reduces the temperature of the welding wire and weld, reduces thermal stress and deformation, and improves welding quality and the service life of the welding wire. Attached Figure Description

[0014] Fig. 1 This is a three-dimensional front view structural diagram of the present invention;

[0015] Fig. 2 This is a schematic diagram of a partial three-dimensional structure of the present invention;

[0016] Fig. 3 This is a three-dimensional cross-sectional view of the present invention.

[0017] In the diagram: 1. Core layer; 2. Alloy layer; 3. Heat-resistant protective layer; 4. Heat-insulating filler; 5. Protective layer; 6. Fish-scale steel sheet layer; 7. Heat dissipation duct. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figs. 1-3 A high-strength steel gas-shielded solid welding wire includes a flux-cored layer 1, an alloy layer 2, a heat-resistant protective layer 3, and a protective layer 5. From the inside out, the welding wire consists of the flux-cored layer 1, alloy layer 2, heat-resistant protective layer 3, and protective layer 5. It also includes:

[0020] The fish-scale steel sheet layer 6 is set on the outer surface of the protective layer 5. The fish-scale steel sheet layer 6 not only increases the contact area between the welding wire and the welding base material and improves the strength of the welded joint, but also helps the heat dissipation during the welding process to be quickly dissipated through the gaps between the steel sheet layers, thus improving the heat dissipation efficiency.

[0021] Furthermore, the alloy layer 2 is made of aluminum alloy, and the core layer 1 is fixedly installed in the middle of the alloy layer 2.

[0022] Furthermore, a heat-resistant protective layer 3 is provided on the side of the alloy layer 2 that is away from the heat-resistant protective layer 3, and the interior of the heat-resistant protective layer 3 is filled with heat-insulating filler 4.

[0023] Furthermore, the heat-resistant protective layer 3 is made of copper alloy, and the heat-insulating filler 4 is aerogel. This nanoporous network structure material not only has excellent heat insulation performance, but also excellent waterproof and flame-retardant properties. It can maintain a stable heat insulation effect in harsh environments. The addition of aerogel significantly improves the overall thermal protection capability of the welding wire.

[0024] Furthermore, multiple sets of fish-scale-shaped steel sheet layers 6 are fixedly installed on the outer surface of the protective layer 5.

[0025] Furthermore, multiple sets of heat dissipation channels 7 are formed on the surface of the fish-scale steel sheet layer 6, and the multiple sets of heat dissipation channels 7 are symmetrically arranged on the fish-scale steel sheet layer 6.

[0026] Working Principle: The flux-cored layer 1, as the core of the welding wire, is filled with alloy powder, slag-forming agent, and arc stabilizer. During welding, these components melt and participate in the formation of the weld, helping to improve the alloy composition of the weld and enhance its mechanical properties and corrosion resistance. The alloy layer 2, made of aluminum alloy, not only has good mechanical properties but also forms a good metallurgical bond with the base material during welding, improving the strength of the weld joint. The center of the alloy layer 2 is hollowed out and fixedly installed with the flux-cored layer 1; this design helps the flux-cored layer burn stably and distribute evenly during welding. The heat-resistant protective layer 3, located between the alloy layer 2 and the protective layer 5, is made of copper alloy and has excellent heat resistance. Its internal aerogel acts as a heat-insulating filler 4, effectively isolating the high temperatures generated during welding and protecting the weld. The internal structure of the wire is not damaged by heat, and the transfer of heat to the outside of the welding wire is reduced, improving the heat resistance and service life of the welding wire. The protective layer 5, as the outermost layer of the welding wire, mainly plays a protective role, preventing the welding wire from being damaged by the external environment during storage, transportation and welding. The fish-scale steel sheet layer 6 is fixedly installed on the outer surface of the protective layer 5, increasing the contact area between the welding wire and the base material, improving the strength of the weld joint. At the same time, the gaps between the steel sheet layers help the heat dissipation during the welding process, improving the heat dissipation efficiency. The heat dissipation duct 7 is opened on the surface of the fish-scale steel sheet layer 6, further enhancing the heat dissipation capacity of the welding wire. During the welding process, the heat dissipation duct can guide the heat to flow quickly and dissipate into the air, reducing the temperature of the welding wire and the weld, reducing thermal stress and deformation, thereby improving the welding quality and the service life of the welding wire.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength steel gas shielded solid wire comprising a core layer (1), an alloy layer (2), a heat resistant protective layer (3) and a protective layer (5), the wire being sequentially composed of the core layer (1), the alloy layer (2), the heat resistant protective layer (3) and the protective layer (5) from the inside to the outside, characterized in that, Also include: Fish scale steel sheet layer (6) is arranged on the outer surface of the protective layer (5).

2. The high strength steel gas shielded solid core welding wire according to claim 1, characterized in that: The alloy layer (2) is made of aluminum alloy, and the middle part of the alloy layer (2) is hollowed out and fixedly installed with the medicine core layer (1).

3. The high strength steel gas shielded solid core welding wire according to claim 1, characterized in that: The side of the alloy layer (2) away from the heat-resistant protective layer (3) is provided with the heat-resistant protective layer (3), and the inside of the heat-resistant protective layer (3) is filled with the heat insulation filler (4).

4. The high strength steel gas shielded solid core welding wire according to claim 3, characterized in that: The material of the heat-resistant protective layer (3) is copper alloy, and the heat insulation filler (4) is aerogel.

5. The high strength steel gas shielded solid core welding wire according to claim 1, characterized in that: The outer surface of the protective layer (5) is fixedly installed with a plurality of fish scale steel sheet layers (6).

6. The high strength steel gas shielded solid wire of claim 5 wherein: A plurality of heat dissipation air ducts (7) are arranged on the surface of the fish scale steel sheet layer (6), and a plurality of heat dissipation air ducts (7) are symmetrically arranged on the fish scale steel sheet layer (6).

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