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Vanadium-reinforced wear-resistant submerged-arc surfacing flux-cored welding wire

A technology of submerged arc surfacing and flux cored wire, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., and can solve problems such as unsatisfactory

Inactive Publication Date: 2013-06-19
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the existing flux-cored wires used for surfacing and repairing are far from meeting the needs of composite manufacturing and repairing of steel mill rolls, coal grinding rolls of thermal power plants, and engineering excavation machinery.

Method used

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  • Vanadium-reinforced wear-resistant submerged-arc surfacing flux-cored welding wire

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specific Embodiment approach

[0028] The second specific implementation mode, as attached figure 1 shown.

[0029] A vanadium-enhanced submerged arc surfacing flux-cored welding wire, comprising a H10 low-carbon steel hollow welding wire and a powder flux core disposed in the hollow welding wire, the proportion of the powder flux core being: the high-carbon ferrochrome 44%, 12% of the ferro-vanadium, 8% of the ferro-manganese deoxidizer, and 34% of iron powder. The filling rate is 43%. The average hardness of the surfacing layer of flux-cored wire is HRC60.

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Abstract

The invention discloses a vanadium-reinforced wear-resistant submerged-arc surfacing flux-cored welding wire which comprises a low carbon steel hollow welding wire and a powder flux core arranged in the hollow welding wire, and is mainly characterized in that the powder flux core comprises the following components in percentage (%) by weight: 30-55 percent of high carbon ferro chrome, 8-20 percent of ferro vanadium, 3-8 percent of deoxidizing agent and 25-55 percent of ferrous powder. By using a surfacing welding layer of the invention, the vanadium-reinforced wear-resistant submerged-arc surfacing flux-cored welding wire has the characteristics of uniform rigidity distribution, high wearing resistance and the like, and has good welding process performance.

Description

technical field [0001] The invention relates to a vanadium-enhanced wear-resistant submerged arc surfacing flux-cored welding wire, which belongs to the technical field of welding materials. Background technique [0002] Flux-cored welding wire is a flux-cored welding wire made by wrapping alloying elements (powder core) in steel skin and drawing them into different diameters. [0003] After the flux-cored wire is melted by welding, an alloy welding layer with special properties such as wear resistance, corrosion resistance and high temperature resistance is formed. Flux cored wire submerged arc welding plays an important role in repair and composite manufacturing, and is widely used in composite parts of mechanical structural parts such as high wear resistance of mechanical engineering structures. [0004] At present, the wear-resistant flux-cored wires for surfacing repair generally contain alloying elements such as carbon, chromium, silicon, and manganese, and rarely or ...

Claims

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Application Information

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IPC IPC(8): B23K35/30
Inventor 杨可包晔峰蒋永锋
Owner HOHAI UNIV CHANGZHOU
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