Bright welding wire for heat-resistant steel for ultra-supercritical coal-fired power station

A coal-fired power station, ultra-supercritical technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of poor durability and high addition amount, and achieve the effect of improving welding manufacturability

Active Publication Date: 2018-11-20
BEIJING BEIYE FUNCTIONAL MATERIALS CORP
View PDF8 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the argon arc welding solid wire published in this patent still follows the principle of being consistent with the base metal. The addition of W, Mn, Nb, N and other elements is relatively high, the welding process of the solid wire, the toughness of the deposited metal, and the impact at room temperature Performance, anti-crack sensitivity, high temperature and long-term durability are poor

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
  • Bright welding wire for heat-resistant steel for ultra-supercritical coal-fired power station
  • Bright welding wire for heat-resistant steel for ultra-supercritical coal-fired power station
  • Bright welding wire for heat-resistant steel for ultra-supercritical coal-fired power station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A bright welding wire for ultra-supercritical coal-fired power station heat-resistant steel, including C, Cr, Co, Mn, W, Nb, Zr, Ni, B, Fe elements, strictly controlled O, N, Al, Si, Ti content and P, S and other unavoidable impurity elements, the weight percent of each component obtained by actual measurement is shown in Table 1. The finished welding wire was welded by non-melting inert gas tungsten shielded welding and the corresponding data were tested. The performance test results of the deposited metal are shown in Table 2.

Embodiment 2

[0028] A bright welding wire (BYH15) for ultra-supercritical coal-fired power station heat-resistant steel and its preparation method, including C, Cr, Co, Mn, W, Nb, Zr, Ni, B, Fe elements, strict control of O, N , Al, Si, Ti content and P, S and other unavoidable impurity elements, the weight percentage of each component obtained by actual measurement is shown in Table 1. The finished welding wire was welded by non-melting inert gas tungsten shielded welding and the corresponding data were tested. The performance test results of the deposited metal are shown in Table 2.

Embodiment 3

[0030] A bright welding wire (BYH15) for ultra-supercritical coal-fired power station heat-resistant steel and its preparation method, including C, Cr, Co, Mn, W, Nb, Zr, Ni, B, Fe elements, strict control of O, N , Al, Si, Ti content and P, S and other unavoidable impurity elements, the weight percentage of each component obtained by actual measurement is shown in Table 1. The finished welding wire was welded by non-melting inert gas tungsten shielded welding and the corresponding data were tested. The performance test results of the deposited metal are shown in Table 2.

[0031] Chemical composition wt.% of welding wire of table 1 embodiment

[0032]

[0033]

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
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
elongationaaaaaaaaaa
Login to view more

Abstract

The invention discloses a bright welding wire for heat-resistant steel for an ultra-supercritical coal-fired power station and belongs to the technical field of welding materials. The welding wire comprises, by weight, 0.10-0.15% of C, 8.5-9.0% of Cr, 0.1-0.6% of Ni, 0.3-0.6% of Mn, 2.5-3.0% of Co, 2.0-2.7% of W, 0.020-0.035% of Nb, 0.001-0.010% of Zr, less than or equal to 0.006% of N, 0.16-0.20%of V, 0.003-0.010% of B, less than or equal to 0.20% of Si, less than or equal to 0.006% of P, less than or equal to 0.006% of S, less than or equal to 0.010% of O, less than or equal to 0.03% of Al,less than or equal to 0.01% of Ti and the balance Fe and inevitable impurity elements. The bright welding wire has the advantages that the welding wire has good welding process performance and excellent deposited metal flowability and formability, and the deposited metal after welding has excellent mechanical properties and good room temperature impact toughness.

Description

technical field [0001] The invention belongs to the technical field of welding materials, in particular to a bright welding wire for ultra-supercritical coal-fired power station heat-resistant steel. It is mainly used for welding heat-resistant steel G115 of 620℃~650℃ ultra-supercritical coal-fired power station or for welding G115 and other grades of heat-resistant steel. Background technique [0002] On the basis of large-scale successful construction of 600°C ultra-supercritical coal-fired power plants, China is developing and constructing ultra-supercritical coal-fired power plants with steam parameters of 600°C / 623°C / 623°C and 610°C / 630°C / 630°C. Further reduce coal consumption and improve thermal efficiency. The key factor restricting the construction of 630°C power station is the research and development of martensitic steel and its welding consumables in the temperature range of 620°C to 650°C. [0003] Patent ZL20121057444.5 "Steel for Ultra-supercritical Thermal P...

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
CPCB23K35/3053B23K35/40
Inventor 王超李明扬章清泉李振瑞傅祖明刘海稳陈晓莉
Owner BEIJING BEIYE FUNCTIONAL MATERIALS CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap