Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flux-cored wire for large-current vertical-up welding and preparation method and application thereof

A technology of flux-cored welding wire and high current, applied in welding equipment, welding medium, welding/cutting medium/material, etc., can solve the problems of unformable welding seam and low welding efficiency, so as to increase welding current and improve moisture absorption. , the effect of improving stability

Active Publication Date: 2019-03-29
武汉铁锚焊接材料股份有限公司
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when the ordinary E501-1 flux-cored wire is welded vertically, when the welding current is higher than 240A, the weld can hardly be formed; and when the welding current is lower than 240A, although the weld is beautiful, the welding efficiency is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flux-cored wire for large-current vertical-up welding and preparation method and application thereof
  • Flux-cored wire for large-current vertical-up welding and preparation method and application thereof
  • Flux-cored wire for large-current vertical-up welding and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] The invention provides a flux-cored welding wire for gas-shielded high-current vertical upward welding, which includes a sheath and a flux core filled in the sheath, and the mass percentage of the flux core to the flux-cored wire is 14.0-14.5%; The components of the flux core and their mass percentages in the flux-cored wire are as follows: TiO 2 5.0~5.8%, melting agent 1.4~1.9%, Si 0.4~0.5%, Mn1.6~2.0%, Mg-Al alloy 0.42~0.65%, Ti 0.14~0.21%, B 0.056~0.08%, Fe balance. The composition ratio of the flux-cored welding wire use...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Cross section diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of welding materials, and particularly relates to a flux cored wire for large-current vertical-up welding. The flux cored wire for large-current vertical-up welding comprises a skin and a flux core filled in the skin, wherein the flux core accounts for 14.0-14.5% of the mass percent of the flux-cored wire and comprises the following the components according to the mass percent of the flux-cored wire: 5.0-5.8% of TiO2, 1.4-1.9% of smelting agent, 0.4-0.5% of Si, 1.6-2.0% of Mn, 0.42-0.65% of Mg-Al alloy, 0.14-0.21% of Ti, 0.056-0.08% of B and the balance being Fe. The invention also provides a preparation method of the flux-cored wire. The preparation method comprises the following steps of: sealing the flux core in the skin by a steel belt method through O-shaped abutting joint, molding and reducing the diameter to obtain the flux-cored wire. The flux-cored wire is used for vertical-up welding, and the welding current is 270A-290A. The vertical-up welding current of the flux-cored wire provided by the invention can be as high as 270-290A, and the crown of a welded joint is less than 2.4mm; when the welding current is lower than 270-290A,the good formation of welded joints can be achieved; the ductility of the deposited metal of the flux-cored wire is higher than 26%; and the flux-cored wire has excellent plasticity and can improve the crack resistance of weld metal.

Description

technical field [0001] The invention belongs to the technical field of welding materials for metal welding, and in particular relates to a gas-shielded high-current vertical upward welding flux-cored welding wire and a preparation method and application thereof. 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, easy adjustment of composition, and small welding deformation. Therefore, it is used in the welding of steel structures such as ships and bridges. be widely used. But when the ordinary E501-1 flux-cored wire is welded vertically, when the welding current is higher than 240A, the weld can hardly be formed; and when the welding current is lower than 240A, although the weld is beautiful, the welding efficiency is low. Therefore, in order to improve work efficiency and reduce the increased workload ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23K35/30B23K35/362B23K35/40
CPCB23K35/30B23K35/3053B23K35/3073B23K35/362B23K35/40B23K35/406
Inventor 杨宗全杨恒闯蔡俊吴光辉
Owner 武汉铁锚焊接材料股份有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com