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

Carbon steel flux-cored wire for nuclear power engineering and preparation and application thereof

A technology of flux-cored welding wire and nuclear power engineering, applied in welding equipment, metal processing equipment, welding medium, etc., to solve the problem of insufficient low temperature toughness, high welding strength and good mechanical properties

Active Publication Date: 2014-03-26
ATLANTIC CHINA WELDING CONSUMABLES +2
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development level of the nuclear power industry can reflect the entire industrial foundation and scientific and technological level of the country in a concentrated manner. It has high requirements for the yield strength, tensile strength, and low-temperature toughness of steel structures, among which the tensile strength is above 480MPa , ordinary carbon steel flux cored wire cannot meet these requirements

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
  • Carbon steel flux-cored wire for nuclear power engineering and preparation and application thereof
  • Carbon steel flux-cored wire for nuclear power engineering and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A (width×thickness) 14×0.9mm steel strip is used as the sheath of the welding wire, and its chemical composition is C 0.03wt%, Mn 0.25wt%, Si 0.015wt%, S 0.004wt%, P 0.008wt%, and the balance is iron.

[0043] The composition of the powder is calculated by weight percentage, and the powder accounts for 14% of the weight of the welding wire. The mass percentage of the powder composition is that the components in the core are: TiO2: 45%, Mn: 15%, SiO2: 3%, Mo: 0.3%, ZrO2 : 1.0%, Al+Mg: 3%, fluoride: 0.04%, and the balance is iron powder.

[0044] Mix the components of the flux core evenly before use; place the steel strip in the welding wire forming machine, pour the ready-to-use flux core mixture into the groove of the steel strip that is bent transversely into a "U" shape, and then roll it into a Silk, finely drawn to Φ1.2mm.

[0045] Weld the flux-cored wire prepared in this example, welding parameters: I=230-250A, U=28-30V, gas flow rate 20L / min, gas type 80%Ar+20%C...

Embodiment 2

[0052]A (width×thickness) 14×0.9mm steel strip is used as the sheath of the welding wire, and its chemical composition is C 0.03wt%, Mn 0.25wt%, Si 0.015wt%, S 0.004wt%, P 0.008wt%, and the balance is iron.

[0053] The composition of the powder is calculated by weight percentage. The powder accounts for 14% of the weight of the welding wire. The mass percentage of each component in the core is: TiO2: 50%, Mn: 18%, SiO2: 1.0%, Mo: 0.2%, ZrO2: 0.8%, Al+Mg: 4%, fluoride: 0.03%, and the balance is iron powder.

[0054] After the ingredients in the flux core are mixed evenly in proportion, the flux core is placed on the carbon steel sheath, wrapped into wire or coiled into wire, and then finely drawn to Φ1.6mm to obtain the carbon steel flux cored welding wire.

[0055] Weld the flux-cored wire prepared in this example, welding parameters: I=230-250A, U=28-30V, gas flow rate 20L / min, gas type 80%Ar+20%CO2 (volume percentage ); during welding, the arc is stable, the spatter is sm...

Embodiment 3

[0062] A (width×thickness) 14×0.9mm steel strip is used as the sheath of the welding wire, and its chemical composition is C 0.03wt%, Mn 0.25wt%, Si 0.015wt%, S 0.004wt%, P 0.008wt%, and the balance is iron.

[0063] The composition of the drug powder is calculated by weight percentage, the drug powder accounts for 14% of the weight of the welding wire, and the mass percentage of each component in the drug core is: TiO2: 55%, Mn: 22%, SiO2: 1.0%, Mo: 0.4%, ZrO2: 0.6%, Al+Mg: 2%, fluoride: 0.02%, and the balance is iron powder.

[0064] Mix the components of the flux core evenly before use; place the steel strip in the welding wire forming machine, pour the ready-to-use flux core mixture into the groove of the steel strip that is bent transversely into a "U" shape, and then roll it into a Silk, finely drawn to Φ1.4mm.

[0065] Weld the flux-cored wire prepared in this example, welding parameters: I=230-250A, U=28-30V, gas flow rate 20L / min, gas type 80%Ar+20%CO2 (volume perce...

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
diameteraaaaaaaaaa
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a carbon steel flux-cored wire for nuclear power engineering and a preparation and an application thereof and belongs to the field of welding materials. The flux core of the carbon steel flux-cored wire which is provided by the invention comprises the following ingredients in percentage by weight: 40-60% of TiO2, 15-30% of Mn, 1-15% of SiO2, 0.01-0.5% of Mo, 0.1-1.0% of ZrO2, 0.1-4% of A1 and Mg, 0-0.08% of fluoride and the rest of iron powder. The filling rate of the flux core is 10-20%. Through the carbon steel flux-cored wire which is provided by the invention, the integral performance of a weld joint is effectively improved, and the problem that the metal low temperature tenacity of the weld joint is insufficient is solved. The carbon steel flux-cored wire can be widely applied to the welding of steel structures in the nuclear power engineering.

Description

[0001] technical field [0002] The invention belongs to the field of welding materials, and in particular relates to a carbon steel flux-cored welding wire for nuclear power engineering and its preparation and application. Background technique [0003] Welding materials are mainly divided into manual electrodes, copper-plated solid wires, submerged arc fluxes and flux-cored wires. As a new generation of high-efficiency and high-performance welding materials, flux cored wire is very popular in various industries. In particular, titanium-type flux-cored wire is favored by welders for its good slag removal, beautiful shape, small spatter and excellent all-position welding performance. It is the most rapidly promoted and developed in the shipbuilding and steel structure manufacturing industries. quick. [0004] In recent years, with the rapid development of my country's nuclear power industry, the degree of mechanization and automation of the welding processing industry has ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3073B23K35/3608B23K35/368B23K35/406
Inventor 郭栖利蒋勇匡艳军朱平兰志刚邱振生王淦刚邓小云杨春乐赵建仓
Owner ATLANTIC CHINA WELDING CONSUMABLES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com