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Wear-resisting basic flux-cored wire with excellent welding performance and preparation method

A technology of welding performance and flux-cored wire, applied in welding equipment, welding medium, welding/cutting medium/material, etc., can solve problems such as poor arc stability, poor process performance, stagnant melting, etc., and improve welding processability , Improve welding performance, reduce the effect of droplet splashing

Inactive Publication Date: 2017-05-31
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

However, the process performance of basic flux-cored wire is poor, and it is prone to stagnant melting, spatter and arc stability in the welding process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A wear-resistant alkaline flux-cored wire with excellent welding performance, including a low-carbon steel sheath and a flux core filled in the low-carbon steel sheath, the flux core includes: calcium oxide 10%, graphite 3%, alkali metal carbonate 7% salt, 4% nickel, 3% manganese, 6% rutile, 5% magnesium alloy, 0.11% niobium, 2% ferrochrome, 3% quartz, 0.03% nitrogen, 0.2% zirconium, the balance is iron and unavoidable impurities; wherein, the K value specified by the following formula is 0.013;

[0048] K=29[Ti]+52[Al]+27[Nb]-100[N];

[0049] Among them, [Al] represents the weight percentage of aluminum-magnesium alloy converted into aluminum content in the drug core component, [Ti] represents the weight percentage of rutile converted into titanium content in the drug core component, and [Nb] represents the niobium content in the drug core component. The weight percentage in the component, [N] means the weight percentage of the nitrogen content in the drug core compon...

Embodiment 2

[0051] A wear-resistant alkaline flux-cored wire with excellent welding performance, including a low-carbon steel sheath and a flux core filled in the low-carbon steel sheath. The flux core includes: calcium oxide 20%, graphite 8%, lithium carbonate 13% by weight , 7% nickel, 6% manganese, 8% rutile, 9% magnesium alloy, 0.083% niobium, 3% ferrochrome, 5% quartz, 0.01% nitrogen, 2% zirconium, and the balance is iron and unavoidable impurities; Wherein, the K value stipulated by the following formula is 0.032;

[0052] K=29[Ti]+52[Al]+27[Nb]-100[N];

[0053] Among them, [Al] represents the weight percentage of aluminum-magnesium alloy converted into aluminum content in the drug core component, [Ti] represents the weight percentage of rutile converted into titanium content in the drug core component, and [Nb] represents the niobium content in the drug core component. The weight percentage in the component, [N] means the weight percentage of the nitrogen content in the drug core ...

Embodiment 3

[0055] A wear-resistant alkaline flux-cored wire with excellent welding performance, including a low-carbon steel sheath and a flux core filled in the low-carbon steel sheath. The flux core includes: calcium oxide 15%, graphite 5%, potassium carbonate 5% by weight , 5% sodium carbonate, 6% nickel, 4.5% manganese, 7% rutile, 8% magnesium alloy, 0.095% niobium, 2.5% ferrochrome, 4% quartz, 0.02% nitrogen, 1.0% zirconium, and the balance is iron and Unavoidable impurities; the filling rate of the drug core is 20%, wherein the K value specified by the following formula is 0.021;

[0056] K=29[Ti]+52[Al]+27[Nb]-100[N];

[0057] Among them, [Al] represents the weight percentage of aluminum-magnesium alloy converted into aluminum content in the drug core component, [Ti] represents the weight percentage of rutile converted into titanium content in the drug core component, and [Nb] represents the niobium content in the drug core component. The weight percentage in the component, [N] m...

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Abstract

The invention discloses a wear-resisting basic flux-cored wire with excellent welding performance, which comprises a low carbon steel skin and a flux core loaded in the low carbon steel skin. The flux core comprises components in percentage by weight: 10 to 20% of calcium oxide, 3 to 8% of graphite, 7 to 13% of alkali carbonate, 4 to 7% of nickel, 3 to 6% of manganese, 10 to 15% of rutile, 5 to 9% of aluminium magnesium alloy, 0.083 to 0.11% of niobium, 2 to 3% of ferrochromium, 3 to 5% of quartz, 0.01 to 0.03% of nitrogen, 0.2 to 2% of zirconium, and the balance of iron and unavoidable impurities. The invention further discloses a preparation method of the wear-resisting basic flux-cored wire with excellent welding performance. According to the wear-resisting basic flux-cored wire with excellent welding performance and the preparation method thereof, which are disclosed by the invention, the wear resistance of the basic flux-cored wire is ensured, the comprehensive mechanical property of weld metal is considered, meanwhile, welding process performance of the flux-cored wire is improved, arc stability is improved, splashed particles are reduced and shortened, and demands of the practical production for the wear-resisting flux-cored wire are met.

Description

technical field [0001] The invention relates to the technical field of basic flux-cored welding wire, in particular to a wear-resistant basic flux-cored welding wire with excellent welding performance and a preparation method. Background technique [0002] With the development of industry, all kinds of mechanical equipment and parts in the industrial production process put forward higher requirements for the wear resistance of welding materials. Wear resistance mainly depends on the type, distribution and area of ​​carbides, and the overall hardness check cannot meet the requirements of high wear resistance; generally, welding wires that meet high wear resistance are expensive, which increases industrial costs. [0003] Flux-cored welding wire is a new type of welding material developed in recent years. According to the different components of the flux core, it is distributed among basic flux-cored welding wire, neutral flux-cored welding wire and acidic flux-cored welding w...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3053B23K35/40
Inventor 卢齐元
Owner 安徽飞弧焊业股份有限公司
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