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Flux-cored wire for build-up welding of wear-resistant hard face

A technology of flux-cored welding wire and hard facing, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc. It can solve the inner layer damage of hard facing, increase the risk of hard facing peeling and production equipment downtime, cracks, etc. problems, to achieve the effect of preventing easy breakage

Active Publication Date: 2018-03-09
SUZHOU U P WEAR RESISTANCE COMPOUND MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the inner layer of the hard surface will be easily damaged or cracked by the pull of the stronger outer hard surface
In actual use conditions, the risk of hard surface spalling and production equipment downtime is increased

Method used

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  • Flux-cored wire for build-up welding of wear-resistant hard face
  • Flux-cored wire for build-up welding of wear-resistant hard face
  • Flux-cored wire for build-up welding of wear-resistant hard face

Examples

Experimental program
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Effect test

Embodiment 1-4

[0021] Prepare flux-cored welding wire with a diameter of 3 mm according to the composition list in Table 1, and then use conventional surfacing welding methods to surfacing on the alloy plate to form a hard surface layer. The resulting alloy plate is tested according to the Vickers hardness HV30 (with a load of 30 kg and a vertex angle of 136 ° The diamond square cone indenter is pressed into the surface of the material) to obtain the hardness value of the alloy.

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Abstract

The invention belongs to the technical field of metal materials, and relates to a flux-cored wire for build-up welding of a wear-resistant hard face. The flux-cored wire comprises elements of C, Si, Mn, Cr, Mo, Al, Nb, Ti and Fe. The flux-cored wire can be used for manufacturing a build-up welding board with the hardness of the outer layer of the hard face layer being higher than the hardness of the inner layer of the hard face layer, and the problem that a board is prone to breakage when hardness and gradient are inverted can be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a flux-cored welding wire for wear-resistant hard surface surfacing. Background technique [0002] Flux-cored welding wire is a commonly used material for wear-resistant hardfacing surfacing, usually made of steel strip, main component alloy powder and other powders. It is widely used in various industries such as cement, steel, power plants, etc. There are many kinds of flux-cored wires, which have different requirements in different fields. In addition to the requirements for wear resistance, a certain degree of toughness is also a very important requirement. [0003] In order to make the overall hard surface layer have a certain degree of toughness, in the design of the hard surface layer, we usually hope that the toughness of the inner layer of the hard surface layer should be higher than that of the outer layer of the hard surface layer. Generally speaking, compare...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
CPCB23K35/3053
Inventor 朱俊俍
Owner SUZHOU U P WEAR RESISTANCE COMPOUND MATERIALS