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Metal powder type flux-cored wire and preparation and application thereof

A technology of flux-cored welding wire and metal powder core, which is applied in the field of low-alloy steel metal powder-cored flux-cored welding wire and its preparation field, can solve the problems of poor processability of metal powder-cored flux-cored welding wire, etc., and achieves good welding process adaptability, The effect of good weld formation and wide source

Inactive Publication Date: 2012-05-02
WUHAN TEMO WELDING CONSUMABLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the problem of poor manufacturability of the existing metal powder cored flux cored wire

Method used

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  • Metal powder type flux-cored wire and preparation and application thereof
  • Metal powder type flux-cored wire and preparation and application thereof
  • Metal powder type flux-cored wire and preparation and application thereof

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with specific examples, so that those skilled in the art can better understand the present invention and implement it, but the given examples are not intended to limit the present invention.

[0032] The metal powder-cored flux-cored welding wire of the present invention includes a powder filled with a carbon steel sheath filled in the carbon steel sheath, wherein the medicine powder contains the following components and their percentages in the total weight of the welding wire are as follows:

[0033] TiO 2 0.20~1.5%;

[0034] SiO 2 0.1~0.5%;

[0035] Na 2 O or K 2 A kind of O or its arbitrary ratio mixture 0.1~0.50%;

[0036] Si 0.15~0.65%;

[0037] Mg 0.08~0.45%;

[0038] Mn 0.9~2.4%;

[0039] Cr 0.15~1.0%;

[0040] Ni 1.5~4.5%;

[0041] Ti 0.15~0.45%;

[0042] B 0.004~0.012%;

[0043] NaF or CaF 2 One or two or more arbitrary mixtures 0.5~1.5%;

[0044] Wherein, the c...

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Abstract

The invention discloses a metal powder type flux-cored wire comprising a carbon steel skin and powders filled inside it. The powders comprise the following components and percent thereof accounting total weight of the flux-cored wire: TiO2 0.20 to 1.5%, SiO2 0.1-0.5%, any one of Na2O or K2O or mixture with optimal mixing ratio 0.1-0.50%, SiO 0.15-0.65%, Mg 0.08-0.45%, Mn 0.9-2.4%, Cr 0.15-1.0%, Ni 1.5-4.5%, Ti 0.15-0.45%, B 0.004-0.012% and any one of NaF or CaF2 or mixture with optimal mixing ratio 0.5-1.5%. When the flux-cored wire is being welded, slag quantity on the welding seam surface is small, the deposition efficiency is high, the sputtering is few, the flux-cored wire has good low temperature impact toughness and anticracking ability, and diffusible hydrogen reaches the super low hydrogen level.

Description

technical field [0001] The invention relates to a welding material for metal welding, specifically a carbon dioxide or argon-rich (80%Ar+20%CO 2 ) Low-alloy steel metal powder-cored flux-cored wire for gas shielding and its preparation. Background technique [0002] Flux-cored wire is a high-efficiency welding material, which has many advantages such as high welding efficiency, shortened welding cycle, good welding process performance, beautiful weld shape, and small welding deformation. Therefore, it is widely used in the welding of steel structures such as ships and bridges. [0003] At present, flux cored wires on the market mainly include titanium type, alkali type and titanium-alkaline type, while metal powder cored flux cored wires have been developed to a certain extent abroad, but domestic research on this type of flux cored wires is less , in the newly revised low-alloy steel flux-cored wire standard GB / T 17493-2008, the metal powder-cored flux-cored wire for low-al...

Claims

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Application Information

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IPC IPC(8): B23K35/368B23K35/40B23K9/16
Inventor 李磊田海成刘玉双韩海峰张亚平
Owner WUHAN TEMO WELDING CONSUMABLES CO LTD
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