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

Stainless steel band electrode submerged arc surfacing flux allowing postweld heat treatment

A post-weld heat treatment, stainless steel strip technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., to achieve the effects of excellent intergranular corrosion performance, smooth lap joint, and excellent comprehensive welding processability

Active Publication Date: 2016-11-09
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the above patents involves welding with EQ309LMo and EQ316L, post-weld heat treatment and lateral bending

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
  • Stainless steel band electrode submerged arc surfacing flux allowing postweld heat treatment
  • Stainless steel band electrode submerged arc surfacing flux allowing postweld heat treatment
  • Stainless steel band electrode submerged arc surfacing flux allowing postweld heat treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A stainless steel strip submerged arc surfacing flux that can carry out post-weld heat treatment. According to the weight percentage, the flux consists of 31% magnesia, 6% fluorite, 15% alumina, 3% metal chromium, 4% It is made of metal molybdenum, 12% quartz, 3% sodium fluoroaluminate, 4% calcium aluminate, 1% carboxymethyl cellulose and 21% pure sodium water glass.

Embodiment 2

[0035] A stainless steel strip submerged arc surfacing flux that can carry out post-weld heat treatment. According to the weight percentage, the flux consists of 31% magnesia, 4% fluorite, 13% alumina, 2% metal chromium, 3% It is made of metal molybdenum, 14% quartz, 4% sodium fluoroaluminate, 3% calcium aluminate, 2% carboxymethyl cellulose and 24% pure sodium water glass.

Embodiment 3

[0037] A stainless steel strip submerged arc surfacing flux that can carry out post-weld heat treatment. According to the weight percentage, the flux consists of 33% magnesia, 3% fluorite, 12% alumina, 3% metal chromium, 4% It is made of metal molybdenum, 13% quartz, 5% sodium fluoroaluminate, 2% calcium aluminate, 3% carboxymethyl cellulose and 22% pure sodium water glass.

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 stainless steel band electrode submerged arc surfacing flux allowing postweld heat treatment, and belongs to flux used in the metal welding field. The flux is formed by mixing, by weight ratio, 31-33% of magnesite, 3-6% of fluorite, 12-15% of aluminium oxide, 2-3% of metal chromium, 3-4% of metal molybdenum, 10-14% of quartz, 3-5% of sodium fluoroaluminate, 2-4% of calcium aluminate, 1-3% of carboxymethylcellulose and 21-24% of pure sodium silicate. When the flux is matched with an EQ309LMo and EQ316L solder strip, postweld heat treatment can be carried out, and the bending performance (especially lateral bending with t is equal to 3mm) and intergranular corrosion resistance are good, and the steel band electrode submerged arc surfacing flux allowing postweld heat treatment can be applied to inner wall surfacing welding of high-temperature containers such as hydrogenation reactors and coal gasifiers.

Description

technical field [0001] The invention relates to a flux used in the field of metal welding, in particular to a stainless steel strip submerged arc surfacing flux capable of heat treatment after welding. Background technique [0002] 316L (022Cr17Ni12Mo2) stainless steel has good corrosion resistance and high temperature performance, and is widely used in high temperature equipment such as hydrogenation reactors and coal gasifiers. The shells of high-temperature equipment such as hydrogenation reactors are mostly chrome-molybdenum heat-resistant steel, and most of them are large thick plates. The corrosion-resistant layer of 316L stainless steel is not suitable for direct compounding (explosive compounding or rolling compounding), and it should be done in the form of surfacing welding. combined. The dilution rate of strip submerged arc surfacing welding is relatively high, so EQ309LMo welding strip should be used as the transition layer, and EQ316L welding strip should be use...

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): B23K35/362
CPCB23K35/3602B23K35/362
Inventor 孔红雨王青云张文军
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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