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

High-strength and high-toughness all-position-welding gas shield flux-cored wire for weather-resistant steel

A high-strength, high-toughness, all-position welding technology, applied in the direction of welding equipment, welding medium, welding/cutting medium/material, etc., to achieve the effect of deposited metal strength and low-temperature impact toughness, and excellent welding processability

Inactive Publication Date: 2015-11-25
HARBIN WELDING INST LTD
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Titanium slag-based flux-cored wire is the first choice for all-position flux-cored wire slag because of its high welding production efficiency and good all-position welding process performance. However, the mechanical properties of titanium-based slag-based flux-cored welding wires are often unsatisfactory when welded in a 100% CO 2 gas protective atmosphere, especially when the strength is high, and its low-temperature impact toughness is difficult to guarantee.

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
  • High-strength and high-toughness all-position-welding gas shield flux-cored wire for weather-resistant steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A high-strength and high-toughness all-position welding gas shielded flux-cored welding wire for weathering steel, the composition of which includes: TiO 2 , SiO 2 , MgO, ZrO 2 , NaF, Al-Mg, Mn-Si, Cu, Ni, Si, Cr, P, borides, the mass parts are: the TiO 2 Conversion value: 4~8, said SiO 2 Conversion value: 0.8~1.5, described MgO conversion value: 0.3~0.5, described ZrO 2 Conversion value: 0.3~0.7, said NaF conversion value: 0~0.3, said Al-Mg conversion value: 0.1~0.6, said Mn-Si conversion value: 0~0.8, said Cu conversion value : 0.2~0.8, the Ni conversion value: 0.1~1.5, the Si conversion value: 0~0.5, the Mn conversion value: 1.0~2.0, the Cr conversion value: 0~0.5, the The above conversion value of boride: 0.01~0.1, the above conversion value of P: below 0.02, and the rest is the basic amount of iron powder.

Embodiment 2

[0031] According to the high-strength and high-toughness all-position welding gas-shielded flux-cored welding wire for weather-resistant steel described in Example 1, the mass fraction is: the described TiO 2 Conversion value: 4, the SiO 2 Conversion value: 0.8, said MgO conversion value: 0.3, said ZrO 2 Conversion value: 0.3, described Al-Mg conversion value: 0.2, described Mn conversion value 1.0, described Cu conversion value: 0.3, described Ni conversion value: 0.3, described boride conversion value: 0.004, the conversion value of P: 0.019, the rest is iron powder.

Embodiment 3

[0033] According to the high-strength and high-toughness all-position welding gas shielded flux-cored welding wire for weathering steel described in embodiment 1 or 2, the mass fraction is: the described TiO 2 Conversion value: 8, the SiO 2 Conversion value: 1.5, described MgO conversion value: 0.4, described ZrO 2 Conversion value: 0.6, described NaF conversion value: 0.3, described Al-Mg conversion value: 0.6, described Mn-Si conversion value: 0.8, described Cu conversion value: 0.7, described Ni conversion value Value: 1.2, described Si conversion value: 0.5, described Mn conversion value 1.2, described Cr conversion value: 0.4, described boride conversion value: 0.008, described P conversion value: 0.015, the rest For iron powder.

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

No PUM Login to View More

Abstract

The invention discloses a high-strength and high-toughness all-position-welding gas shield flux-cored wire for weather-resistant steel. The mechanical properties are generally not ideal when titania slag type flux-cored wire performs welding under the full CO2 gas shielding atmosphere, and particularly under high strength, the low-temperature impact toughness cannot be ensured. The high-strength and high-toughness all-position-welding gas shield flux-cored wire comprises, by mass, 4-8 parts of TiO2, 0.8-1.5 parts of SiO2, 0.3-0.5 part of MgO, 0.3-0.7 part of ZrO2, 0-0.3 part of NaF, 0.1-0.6 part of Al-Mg, 0-0.8 part of Mn-Si, 0.2-0.8 part of Cu, 0.1-1.5 part of Ni, 0-0.5 part of Si, 1.0-2.0 parts of Mn, 0-0.5 part of Cr, 0.01-0.1 part of boride, less than 0.02 part of P and the balance iron powder according to the equivalent value. The high-strength and high-toughness all-position-welding gas shield flux-cored wire is applied to weather-resistant steel.

Description

Technical field: [0001] The invention relates to a high-strength and high-toughness all-position gas-shielded flux-cored welding wire for weather-resistant steel. The invention belongs to the field of welding materials and is a gas-shielded flux core for all-position welding that is resistant to atmospheric corrosion and has high strength and plastic toughness. welding wire. Background technique: [0002] Weather-resistant steel has good atmospheric corrosion resistance, and is cheaper than stainless steel, and is widely used in the manufacture of steel structures such as bridges, vehicles, towers, and containers. In addition to the requirement of high strength (above 60 kg), the new weathering steel also requires high welding efficiency and weathering performance. Correspondingly, its supporting welding materials should also have high performance in terms of strength, plastic toughness, weather resistance and weldability, matching with the base metal. [0003] Titanium ...

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): B23K35/30
CPCB23K35/3073
Inventor 张静谷森宋昌洪吉荣亮
Owner HARBIN WELDING INST LTD
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