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Niobium enhanced wear-resisting submerged arc bead weld flux-cored wire

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

Inactive Publication Date: 2012-07-18
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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  • Niobium enhanced wear-resisting submerged arc bead weld flux-cored wire
  • Niobium enhanced wear-resisting submerged arc bead weld flux-cored wire

Examples

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specific Embodiment approach

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

[0029] A niobium-enhanced submerged arc surfacing flux-cored welding wire, comprising an 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 48%, 10% of the ferro-niobium, 7% of the ferro-manganese deoxidizer, and 35% of iron powder. The filling rate is 45%. The average hardness of the surfacing layer of flux-cored wire is HRC60.

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Abstract

The invention discloses a niobium strengthening wear-resisting submerged arc bead weld flux-cored wire, which comprises a low-carbon steel cored solder wire and a power flux core arranged in the cored solder wire, and is mainly characterized in that the power flux core comprises the following components by weight percent: 30-55% of high-carbon ferrochrome, 4-16% of ferrocolumbium, 3-8% of deoxidant and 25-55% of iron powder. The bead weld layer of the invention has the advantages of evenly distributed hardness and high abrasive resistance; and the welding technological properties thereof are excellent.

Description

technical field [0001] The invention relates to a niobium-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 h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/368B23K35/30
Inventor 杨可包晔峰蒋永锋
Owner HOHAI UNIV CHANGZHOU
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