Welding stick for cast steel roller

A cast steel roll and welding wire technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of metal material failure, affecting the service life of metal components, etc., to improve strength and toughness, improve fatigue resistance performance, the effect of avoiding grain boundary corrosion

Inactive Publication Date: 2017-09-22
安徽飞弧焊业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a welding material, welding wire has the advantages of high cladding efficiency, beautiful weld shape, and small welding deformation. It is widely used in chemical industry, petroleum, aerospace, aviation and other fields. Affect the service life of metal components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A welding wire for cast steel roll proposed by the present invention, its mass fraction includes the following components: C: 0.45%, Mg: 0.6%, Si: 0.65%, Al: 0.25%, Zn: 0.3%, Mn: 0.5%, Cr: 12%, B: 0.2%, Ti: 0.15%, Sr: 0.03%, Mo: 0.3%, W: 0.1%, V: 0.6%, Nb: 0.05%, Zr: 0.35%, Sc: 0.1%, Er: 0.2%, Ce: 0.4%, Y: 0.6%, Gd: 0.2%, and the rest are Fe and unavoidable impurities.

Embodiment 2

[0017] A welding wire for cast steel roll proposed by the present invention, its mass fraction includes the following components: C: 1%, Mg: 1%, Si: 0.5%, Al: 0.4%, Zn: 0.2%, Mn: 0.7%, Cr: 16%, B: 0.35%, Ti: 0.1%, Sr: 0.06%, Mo: 0.1%, W: 0.2%, V: 0.4%, Nb: 0.12%, Zr: 0.15%, Sc: 0.22%, Er: 0.6%, Ce: 0.8%, Y: 0.2%, Gd: 0.6%, and the rest are Fe and unavoidable impurities.

Embodiment 3

[0019] A welding wire for cast steel roll proposed by the present invention, its mass fraction includes the following components: C: 0.75%, Mg: 0.8%, Si: 0.58%, Al: 0.32%, Zn: 0.25%, Mn: 0.6%, Cr: 14%, B: 0.28%, Ti: 0.12%, Sr: 0.04%, Mo: 0.2%, W: 0.15%, V: 0.5%, Nb: 0.09%, Zr: 0.25%, Sc: 0.16%, Er: 0.4%, Ce: 0.6%, Y: 0.4%, Gd: 0.4%, and the rest are Fe and unavoidable impurities.

[0020] Among them, the welding process parameters are as follows: the flow rate of argon gas is 17.5L / min, the welding voltage is 29V, the welding current is 250A, and the welding speed is 4mm / s.

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PUM

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Abstract

The invention discloses a welding stick for a cast steel roller. The welding stick comprises following components including, by mass percent, C, Mg, Si, Al, Zn, Mn, Cr, B, Ti, Sr, Mo, W, V, Nb, Zr, Sc, Er, Ce, Y, Gd and the balance Fe and inevitable impurities. The provided welding stick for the cast steel roller is reasonable in component, arc stability is good during welding, welding line forming is attractive, bonding between a welding line and a mother material is high, and performance is stable. The bonding strength of a surfacing layer and the mother material is high. The surfacing layer has high tenacity, high strength, creep resistance and good abrasion resistance, and the service life of the cast steel roller is obviously prolonged.

Description

technical field [0001] The invention relates to the field of welding wire technology, in particular to a welding wire for cast steel rolls. Background technique [0002] As a welding material, welding wire has the advantages of high cladding efficiency, beautiful weld shape, and small welding deformation. It is widely used in chemical industry, petroleum, aerospace, aviation and other fields. affect the service life of metal components. Among them, the roll is an important part of the rolling mill in the rolling mill. As an important production component in the steel industry, it is easily damaged during use. It is often repaired by surfacing welding to prolong its service life. At present, the welding wire for rolls still has unreasonable formula components, and the bonding strength with the base metal is not high. The cast steel surfacing layer is prone to cracks, and the toughness, strength, creep resistance, and wear resistance of the surfacing layer still need to be st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
CPCB23K35/3086
Inventor 卢齐元
Owner 安徽飞弧焊业股份有限公司
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