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

High-performance and weather-proof steel welding electrode for non-spraying bridge steel and preparation method of high-performance and weather-proof steel welding electrode

A bridge steel, coating-free technology, used in welding equipment, welding media, manufacturing tools, etc., can solve problems such as increasing the difficulty of maintenance, destroying the natural environment, increasing material labor costs, and achieving good slag removal and process. Excellent performance and excellent operating performance

Active Publication Date: 2016-12-07
ATLANTIC CHINA WELDING CONSUMABLES
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the surrounding natural environment will be destroyed, the cost of materials and labor will be increased, and the difficulty of maintenance will be increased.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The coating used in the electrode of this embodiment is mainly carbonate, fluoride and alloy, and a small amount of rutile and improved pressure coating substances are added at the same time. The components and their parts by mass are as follows: Carbonate: 45 parts by mass, 17 parts by mass of fluoride, 8 parts by mass of rutile, 11 parts by mass of silicon dioxide, 5 parts by mass of electrolytic manganese, 1 part by mass of nickel powder, metal chromium 1.3 parts by mass, 1 part by mass of copper powder, 10 parts by mass of iron powder, 2 parts by mass of binder, and 0.22 parts by mass of graphite.

[0035] Mix the above skin powder evenly, add water glass with a potassium-sodium ratio of 1:1 at 20°C, accounting for 21-22wt% of the solid component mass content, and perform wet mixing with a Baume density of 41-42Be. Welding rods were prepared on hydraulic welding rod production equipment using H08A welding core with low sulfur and phosphorus control.

Embodiment 2

[0037]Others are the same as in Example 1, but the mass parts of the coating are composed as follows: 42 parts by mass of carbonate, 19 parts by mass of fluoride, 8 parts by mass of rutile, 10 parts by mass of silicon dioxide, 4.5 parts by mass of electrolytic manganese, 1.2 parts by mass of nickel powder parts by mass, 1.2 parts by mass of metal chromium, 0.85 parts by mass of copper powder, 12 parts by mass of iron powder, 2 parts by mass of binder, and 0.25 parts by mass of graphite.

Embodiment 3

[0039] Others are the same as in Example 3, but the composition of the drug skin in parts by mass is as follows: Carbonate: 45 parts by mass, 15 parts by mass of fluoride, 7 parts by mass of rutile, 11 parts by mass of silicon dioxide, 5 parts by mass of electrolytic manganese, nickel powder 1.1 parts by mass, 1.3 parts by mass of metal chromium, 0.9 parts by mass of copper powder, 12 parts by mass of iron powder, 2 parts by mass of binder, and 0.2 parts by mass of graphite.

[0040] Implement 1-3 high-performance weather-resistant steel electrodes for paint-free bridge steel. When using DC reverse welding (the base metal is Q345qENH weather-resistant steel or Q420qENH weather-resistant steel), the arc is stable, basically no spatter, good slag removal, and all-position welding Excellent performance, beautiful weld shape. The mechanical properties of the deposited metal are: yield strength Rp0.2: 493Mpa, tensile strength Rm: 594Mpa, elongation A: 24%, impact energy at -40°C: 1...

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
Eccentricityaaaaaaaaaa
yield strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-performance and weather-proof steel welding electrode for non-spraying bridge steel and a preparation method of the high-performance and weather-proof steel welding electrode. The high-performance and weather-proof steel welding electrode comprises a low-sulfur-and-phosphorus core wire and a coating covering the surface of the core wire, wherein the coating is prepared from components as follows: 42-45 parts by weight of carbonate, 15-19 parts by weight of fluoride, 6-8 parts by weight of rutile, 10-11 parts by weight of silica, 4-5 parts by weight of electrolytic manganese, 1-1.2 parts by weight of nickel powder, 1.2-1.4 parts by weight of chromium metal, 0.85-1.0 part by weight of coper powder, 10-12 parts by weight of iron powder, 1.8-2.0 parts by weight of an adhesive and 0.2-0.25 parts by weight of graphite. Compared with the prior art, the electrode is stable in electric arc, low in splashing, good and easy in sediment separation, attractive in molded appearance and good in all-position operating performance and has the characteristics of excellent low-temperature impact property, good low-temperature toughness at subzero 40 DEG C and high corrosion resistance.

Description

technical field [0001] The invention relates to the field of welding materials, in particular to a high-performance weather-resistant steel welding electrode specially used in the field of painting-free steel bridge construction. Background technique [0002] The Zangmu Yajiang Bridge is located in the Sichuan-Tibet Plateau Nature Reserve. The main span of the bridge adopts a 430-meter-long steel pipe concrete arch structure, and the main girder is a 5-span prestressed concrete continuous girder. If the anti-corrosion scheme of ordinary bridge steel + coating is adopted, the coating will age faster due to strong ultraviolet radiation, and it needs to be repainted and maintained every 10 years or so. As a result, the surrounding natural environment will be destroyed, the cost of materials and labor will be increased, and the difficulty of maintenance will be increased. Considering the environmental conditions of the bridge site such as temperature, humidity, precipitation, e...

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): B23K35/30B23K35/365B23K35/40
CPCB23K35/0272B23K35/3073B23K35/3602B23K35/365B23K35/404
Inventor 张克静蒋勇朱宇霆
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