CN218799984U

CN218799984U - Surfacing welding electrode

Info

Publication number: CN218799984U
Application number: CN202021493203.6U
Authority: CN
Inventors: 任艳艳; 郭超; 张怡青; 谢胜利; 朱文涛; 鲁训祥; 邓小君; 李晓东
Original assignee: Henan Polytechnic Institute
Current assignee: Henan Polytechnic Institute
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2023-04-07
Anticipated expiration: 2030-07-27

Abstract

The utility model relates to a surfacing electrode, which comprises a core wire and a coating wrapped on the outer wall of the core wire, wherein the diameter of the core wire is 5-8 mm, the thickness of the coating is 1-5 mm, the coating is a titanium-calcium coating, the core wire comprises an alumina layer and an H08A low carbon steel layer, a through hole is arranged in the core wire along the length direction, an alumina layer is arranged in the through hole, the alumina layer is prepared by mixing alumina particle powder and binder water glass, the diameter of the alumina layer is 2-6 mm, the outer wall of the alumina layer is wrapped by the H08A low carbon steel layer, the length of the surfacing electrode is 350-450 mm, and the length of a clamping end of the surfacing electrode is 15-30 mm; the utility model discloses can effectively improve the wearability of material, the welding seam intensity that forms is high, has better wearability and machining performance to effectively reduce welding defect, shorten production cycle, create economic benefits for the enterprise.

Description

Surfacing welding electrode

Technical Field

The utility model belongs to the technical field of welding material, especially, relate to a surfacing welding electrode.

Background

"China manufacture 2025" proposes: the manufacturing industry is the main body of national economy, and is the basis of the founding, the prosperous and the strong country. The surfacing welding is an advanced welding process, has the advantages of high efficiency, large deposited metal amount, low cost and the like, but people only have common application in the conventional process, and provides new requirements for the implemented surfacing welding technology aiming at the continuous emergence of new materials, large-size parts and parts with special performance requirements on wear resistance, heat resistance, corrosion resistance and the like in the existing manufacturing industry. The mode analysis of the combination of the surfacing method and the surfacing material shows that the hardfacing method mainly comprises three methods, namely flux-cored wire open arc welding, powder or powder block open arc welding and flux-cored wire submerged arc welding. The flux-cored wire open arc welding and the flux-cored wire submerged arc welding have the advantages of economy, convenience, reliability and the like, but the flux-cored wire has limited powder coating amount, and the improvement of the performance of a surfacing layer is limited. The addition of alloy elements can be increased by powder or powder block open arc welding, but the alloy powder is easily blown away by open arc during welding, so that the effective utilization rate is low; when the powder block is used for open arc welding, the welding defects such as incomplete penetration, slag inclusion and the like are easy to occur, and the welding quality is poor. Aiming at the defects of the existing welding materials, a surfacing welding electrode capable of improving the wear resistance of the materials and reducing the welding defects is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve the weak point among the prior art, provide a surfacing electrode, this surfacing electrode can effectively improve the wearability of material, reduces welding defect, shortens production cycle, creates economic benefits for the enterprise.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a surfacing welding electrode comprises core wire and the coating of parcel in the core wire outer wall, and the core wire includes aluminium oxide layer and H08A low carbon steel layer, has seted up the through-hole along length direction in the core wire, is provided with the aluminium oxide layer in the through-hole, and the aluminium oxide layer adopts aluminium oxide particle powder and binder water glass to mix and makes, and aluminium oxide layer outer wall parcel sets up the H08A low carbon steel layer.

Further, the diameter of the alumina layer is 2-6 mm.

Furthermore, the diameter of the core wire is 5-8 mm.

Further, the coating is titanium calcium type coating, and the thickness of the coating is 1-5 mm.

Furthermore, the length of the surfacing electrode is 350-450 mm, and the length of the clamping end of the surfacing electrode is 15-30 mm.

Adopt above-mentioned technical scheme, the utility model has the advantages of as follows:

(1) The utility model discloses a change surfacing welding electrode structure, set up the through-hole in the core wire, and pack the aluminium oxide layer in the through-hole, aluminium oxide is the compound of high rigidity, the melting point is 2054 oC, the boiling point is 2980 oC, for other welding methods, this surfacing welding electrode is when the welding, high rigidity compound aluminium oxide can effectively pass through to the welding seam metal in, the wearability of increase material, the welding seam intensity that forms is high, better wearability and machining performance have, and electric arc burning is steady in welding process, it is little to splash, the welding seam shaping is pleasing to the eye.

(2) The diameter of the aluminum oxide layer of the utility model is 2-6 mm, so that the aluminum oxide is effectively and properly transited to weld metal, and the wear resistance of the material is improved to the maximum extent.

(3) The aluminum oxide layer is prepared by mixing aluminum oxide particle powder and a binder, namely water glass, so that air does not exist in the through hole, and normal operation of welding construction is effectively guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the welding wire comprises a welding core, 2 parts of a flux coating, 3 parts of an aluminum oxide layer and 4 parts of an H08A low-carbon steel layer.

Detailed Description

As shown in fig. 1, the utility model discloses a surfacing electrode comprises core wire 1 and the coating 2 of wrapping up in core wire 1 outer wall, and core wire 1 includes alumina layer 3 and H08A low carbon steel layer 4, has seted up the through-hole along length direction in the core wire 1, is provided with alumina layer 3 in the through-hole, and alumina layer 3 adopts alumina grain powder and binder water glass to mix and makes, and the parcel of alumina layer 3 outer wall sets up H08A low carbon steel layer 4.

The diameter of the alumina layer 3 is 2-6 mm.

The diameter of the core wire 1 is 5-8 mm.

The coating 2 is a titanium-calcium coating 2, and the thickness of the coating 2 is 1-5 mm.

The length of the surfacing electrode is 350-450 mm, and the length of the clamping end of the surfacing electrode is 15-30 mm.

The utility model discloses during the use, owing to seted up the through-hole in core wire 1, be provided with aluminium oxide layer 3 in the through-hole, aluminium oxide layer 3 adopts aluminium oxide particle powder and binder water glass to mix and makes, and the addition of binder water glass can effectively avoid getting into the air in the through-hole, and in addition, aluminium oxide is the compound of a high rigidity, and the fusing point is 2054 oC, and the boiling point is 2980 oC, adopts the utility model discloses during the surfacing welding electrode welding, high rigidity compound aluminium oxide can effectively pass through to in the welding seam metal, the wearability of increase material, and the welding seam intensity that forms is high, has better wearability and machinability to electric arc burning is steady in welding process, and it is little to splash, and the welding seam is formed beautifully.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims

1. A surfacing welding electrode is characterized in that: constitute by core wire (1) and parcel in coating (2) of core wire (1) outer wall, core wire (1) includes aluminium oxide layer (3) and H08A low carbon steel layer (4), has seted up the through-hole along length direction in core wire (1), is provided with aluminium oxide layer (3) in the through-hole, and aluminium oxide layer (3) outer wall parcel sets up H08A low carbon steel layer (4).

2. The hardfacing electrode of claim 1, wherein: the diameter of the aluminum oxide layer (3) is 2-6 mm.

3. The surfacing electrode according to claim 1 or 2, characterized in that: the diameter of the core wire (1) is 5-8 mm.

4. The hardfacing electrode of claim 1, wherein: the coating (2) is a titanium-calcium coating (2), and the thickness of the coating (2) is 1-5 mm.

5. The hardfacing electrode of claim 1, wherein: the length of the surfacing electrode is 350-450 mm, and the length of the clamping end of the surfacing electrode is 15-30 mm.