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

Alloy welding wire and its preparation method

An alloy welding wire and alloy technology, applied in welding equipment, metal processing equipment, welding medium and other directions, can solve the problems of insufficient technology and poor mechanical properties of flux-cored welding wire, so as to prevent cold and hot cracks and prevent processing and forming. And the effect of weldability and good plasticity

Active Publication Date: 2017-08-25
山东聚力焊接材料有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above reasons, the process performance and mechanical properties of the flux-cored welding wire made by replacing part of rutile with reduced ilmenite are poor, and the impact absorption energy Akv (-20°C) of the welding cladding metal is only about 50-80J, barely Reach the national standard requirement of ≥ 47J, which is less than half of that of ordinary commercially available rutile flux cored wire

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

[0028] (1) Take 10Kg of rutile, 1 Kg of quartz, 2 Kg of sodium fluoride, 1 Kg of zirconium powder, 13 Kg of molybdenum powder, 2.2Kg of wollastonite, 0.4Kg of low-carbon manganese, 0.6 Kg of aluminum magnesium powder, and 2.4Kg of rare earth niobium, Mix, fully stir, and dry at 880°C for 3 hours to obtain the formula powder for use;

[0029] (2) Take a Ni60Gr40 alloy strip with a thickness of 0.4mm and a width of 14mm, and then roll a U-shaped groove, add the powder described in step (1) into the U-shaped groove, and then close, reduce the diameter, draw wire, and take up the wire to obtain the obtained product. welding wire. The wire flux core fill factor is 34%.

Embodiment 2

[0031] (1) Take rutile 18Kg, quartz 1Kg, cryolite 1.2Kg, sodium fluorosilicate 1.5 Kg, zircon sand 1.5 Kg, molybdenum powder 12Kg, wollastonite 3.1 Kg, low-carbon manganese 0.2 Kg, aluminum powder 0.1Kg, magnesium powder 0.25 Kg, rare earth niobium 4Kg, mixed, fully stirred, and dried at 750°C for 4.3 hours to obtain a formula powder for use;

[0032] (2) Take a Ni70Gr30 alloy strip with a thickness of 0.3mm and a width of 10mm, then roll a U-shaped groove, add the powder described in step (1) into the U-shaped groove, and then close, reduce the diameter, draw wire, and take up the wire to obtain the obtained product. welding wire. The core filling factor of the welding wire is 42%.

Embodiment 3

[0034] (1) Take rutile 23Kg, quartz 3Kg, cryolite 1 Kg, potassium fluoride 1 Kg, sodium fluorosilicate 0.6 Kg, zirconium powder 1Kg, molybdenum powder 12.2Kg, wollastonite 2Kg, low-carbon manganese 0.2 Kg, aluminum powder 0.3 Kg, 4 Kg of rare earth niobium, mixed, fully stirred, and dried at 700 ° C for 4.5 hours to obtain the formula powder for use;

[0035] (2) Take a Ni63Gr37 alloy strip with a thickness of 0.5mm and a width of 15mm, and then roll a U-shaped groove, add the powder described in step (1) into the U-shaped groove, and then close, reduce the diameter, draw wire, and take up the wire to obtain the obtained product. welding wire. The filler wire flux core fill factor is 50%.

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
thicknessaaaaaaaaaa
widthaaaaaaaaaa
impact absorption energyaaaaaaaaaa
Login to View More

Abstract

The invention provides an alloy welding wire, comprising an alloy sheath and a flux core, wherein the alloy sheath is a nickel-chromium alloy; the flux core includes rutile, quartz and / or cryolite, fluoride, zirconium powder, molybdenum powder, silicon Limestone, low carbon manganese, strong oxidant, rare earth niobium. The alloy welding wire of the present invention has the good properties of resistance to active gas, caustic medium, and reducing acid medium corrosion, and has high strength, good plasticity, can prevent cold and hot cracks, and can be processed and welded. Therefore, it can be widely used Used in petrochemical, metallurgy, atomic energy, marine development, aviation, aerospace and other industries, it solves the engineering corrosion problems that cannot be solved by general stainless steel and other metals and non-metallic materials.

Description

technical field [0001] The invention relates to a welding wire, in particular to an alloy welding wire and a preparation method thereof. Background technique [0002] At present, in my country's petrochemical, metallurgy, atomic energy, ocean development, aviation, aerospace and other industries, general stainless steel and other metal and non-metal materials cannot solve engineering corrosion problems, especially pitting corrosion and crevice corrosion in acid environments and chloride media. , Intergranular corrosion and erosion are still engineering problems. [0003] Low-carbon NiGrMoNb alloy flux-cored welding wire is a low-carbon nickel-chromium-molybdenum-niobium alloy welding wire with excellent corrosion resistance to various corrosive media. Due to the low carbon content, the deposited metal will not have a sensitization tendency even after being held at a high temperature of 650-900°C for 50 hours, and can meet the welding requirements for pressure vessels at temp...

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 Patents(China)
IPC IPC(8): B23K35/30B23K35/362B23K35/40
CPCB23K35/304B23K35/362B23K35/406
Inventor 孟波乔吉春
Owner 山东聚力焊接材料有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com