Flux-cored wire with excellent low-temperature impact toughness

A technology of low-temperature impact toughness and flux-cored wire, which is applied in welding media, manufacturing tools, welding equipment, etc., can solve the problems of reducing the low-temperature impact toughness of welded joints, and achieve the effects of desulfurization, diffusion suppression, and cold crack suppression

Inactive Publication Date: 2017-05-10
天长市通联焊业有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Ti in the rutile slag-based flux-cored wire will transition into the deposited metal during welding, reducing the ...

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
  • Flux-cored wire with excellent low-temperature impact toughness
  • Flux-cored wire with excellent low-temperature impact toughness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A flux-cored welding wire with excellent low-temperature impact toughness, which is characterized in that it includes a low-carbon steel sheath and a flux core filled in the low-carbon steel sheath, and the raw materials of the flux core include: 20% of roasted bauxite, calcium ferrite 6%, 1% rutile, 5% feldspar, 5% aluminum fluoride, 3% nickel fluoride, 3% magnesium alloy powder, 2% ferromanganese powder, 2% marble, 1% barium carbonate, and the balance is iron pink.

Embodiment 2

[0034] A flux-cored welding wire with excellent low-temperature impact toughness, comprising a low-carbon steel sheath and a flux core filled in the low-carbon steel sheath, the raw materials of the flux-core include: 10% roasted bauxite, 8% calcium ferrite, long 5.5% of stone, 6% of aluminum fluoride, 3.5% of nickel fluoride, 1.5% of magnesium alloy powder, 1% of ferromanganese powder, 2.5% of marble, 0.5% of barium carbonate, and the balance is iron powder; in roasted bauxite , Al 2 o 3 , SiO 2 and Fe 2 o 3 The weight percentage is 85%, Fe 2 o 3 The percentage by weight is 10%.

Embodiment 3

[0036] A flux-cored welding wire with excellent low-temperature impact toughness, including a low-carbon steel sheath and a flux core filled in the low-carbon steel sheath. The raw materials of the flux core include: 15% roasted bauxite, 6% calcium ferrite, rutile 3%, feldspar 6%, aluminum fluoride 7%, nickel fluoride 4%, magnesium alloy powder 1%, manganese iron powder 1.3%, marble 3%, barium carbonate 0.65%, the balance is iron powder; In bauxite, Al 2 o 3 , SiO 2 and Fe 2 o 3 The weight percentage is 80%, Fe 2 o 3 The weight percentage is 12%, and the roasted bauxite is roasted at 900° C. for 2 hours.

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
Particle sizeaaaaaaaaaa
-40°c impact energyaaaaaaaaaa
Login to view more

Abstract

The invention discloses a flux-cored wire with excellent low-temperature impact toughness. The flux-cored wire comprises a low-carbon steel sheath and a flux core with which the low-carbon steel sheath is filled, wherein the flux core comprises the following components by weight percent: 10-20% of calcined bauxite, 3-8% of calcium ferrite, 0-5% of rutile, 5-6% of feldspar, 5-7% of aluminum fluoride, 3-4% of nickel fluoride, 1-3% of magnalium powder, 1-2% of ferromanganese powder, 2-3% of marble, 0.5-1% of barium carbonate and the balance of iron powder. As calcined bauxite replaces part of rutile, the low-temperature impact toughness of a weld joint is effectively improved, and meanwhile, the flux-cored wire has the advantages of easy deslagging and small splashing.

Description

technical field [0001] The invention relates to the technical field of flux cores, in particular to a flux-cored welding wire with excellent low-temperature impact toughness. Background technique [0002] Flux-cored welding wire is a high-efficiency and high-performance welding material, which has the advantages of good process performance, fast deposition speed and high production efficiency, and is widely used in various industrial manufacturing welding fields. At present, most flux-cored welding wires use rutile as the main slag forming material. Rutile slag-based flux-cored welding wire has the advantages of good molding, easy slag removal and small spatter, and can realize horizontal, upward, downward, vertical, etc. Position welding. However, Ti in the rutile slag-based flux-cored wire will transition into the deposited metal during welding, reducing the low-temperature impact toughness of the welded joint, which has an extremely adverse effect on the welding of high-...

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
IPC IPC(8): B23K35/12B23K35/30
CPCB23K35/0266B23K35/3053
Inventor 卢齐元
Owner 天长市通联焊业有限公司
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