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Abrasion-resistant flux-cored wire

A technology of flux-cored welding wire and welding wire, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of poor wear resistance and integrity, achieve guaranteed strength, control the amount of welding slag, and reduce oxygen content Effect

Inactive Publication Date: 2015-08-26
GUIZHOU AEROSPACE KAIHONG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing welding wires are relatively successful in terms of stability, but their wear resistance and the integrity of the welded parts are relatively unsatisfactory. Therefore, the inventors provide a kind of wear resistance by studying the composition and content of the powder in the flux-cored wire. Strong, flux-cored wire that can effectively suppress the amount of welding slag in the welding process and ensure that the welding surface is complete and clean

Method used

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  • Abrasion-resistant flux-cored wire

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Experimental program
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Effect test

Embodiment 1

[0015] The influence of the percentage of the powder filled in the carbon steel sheath to the total weight of the wire on the flux-cored wire is shown in Table 1:

[0016] Table 1: The effect of the percentage of powder in the total weight of the wire on the flux-cored wire

[0017]

[0018] As can be seen from the above table, too high C content will affect the crack resistance of welding wire, and the increase of Mn content will cause the arc stability to decrease. In the example of the present invention, each index is relatively excellent, which proves that the powder has a strong effect on the flux-cored wire. To strengthen the role of promotion.

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Abstract

The invention discloses an abrasion-resistant flux-cored wire. The abrasion-resistant flux-cored wire comprises a carbon steel sheath and powder filled into the carbon steel sheath. The powder comprises 0.03 to 0.09% of Cr, 0.05 to 0.11% of Mo, 1.1 to 1.7% of Mn and 1.3 to 1.9% of Si, based on the total weight of the wire.The abrasion-resistant flux-cored wire has following beneficial effects: by rigidly controlling components and the content of powder, an electric arc is stabilized and the amount of welding slag on the surface of a welding pass is greatly decreased, thereby effectively controlling the amount of welding slag; the flux-cored wire is added with C so that strength of welded metal is ensured and abrasion-resistant degree is further improved; the flux-cored wire is added with Si in order to decrease the oxygen content in deposited metal and improve mobility of deposited metal; and by utilizing the flux-cored wire, good stability is achieved and a welding surface becomes complete and neat.

Description

technical field [0001] The invention relates to the technical field of metal welding materials, in particular to a wear-resistant flux-cored welding wire. Background technique [0002] Flux-cored welding wire is also called tubular welding wire or welding material for various purposes (wear resistance, high strength, heat resistance, corrosion resistance, low temperature resistance), etc. Because its alloy composition can be adjusted flexibly and conveniently, many varieties of flux cored wire cannot be smelted and rolled by solid wire. At the same time, due to the characteristics of the product structure, the welding process performance and welding efficiency of flux-cored welding wire have advantages compared with solid-cored welding wire and manual welding rod. [0003] The existing welding wires are relatively successful in terms of stability, but their wear resistance and the integrity of the welded parts are relatively unsatisfactory. Therefore, the inventors provide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/368B23K35/30
CPCB23K35/0266B23K35/3073B23K35/3608B23K35/368
Inventor 刘小军付伟张德远李强郭寅斌
Owner GUIZHOU AEROSPACE KAIHONG SCI & TECH
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