Self-protecting flux-cored welding wire

A technology of flux-cored welding wire and self-protection, applied in the direction of welding medium, welding equipment, welding equipment, etc., to achieve the effect of improving the comprehensive mechanical properties

Active Publication Date: 2015-11-11
唐山富银金属材料有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing welding methods and flux-cored wires cannot solve the above technical problems well.

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

[0029] A self-protected flux-cored welding wire, the composition includes:

[0030] Phenolic resin 30%

[0031] Potassium 10%

[0032] Aluminum 30%

[0033] Matrix component 4%

[0034] Calcium 16%

[0035] Fluorspar 10%

[0036] Among them, the matrix component is: titanium dioxide and base material with a mass ratio of 1:1.

Embodiment 2

[0038] A self-protected flux-cored welding wire, the composition includes:

[0039] ABS resin 45%

[0040] Sodium 1%

[0041] Aluminum 2%

[0042] Molybdenum 18%

[0043] Matrix component 3%

[0044] Silicon 10%

[0045] Limestone 21%

[0046] Among them, the matrix component is: titanium dioxide and base material with a mass ratio of 1:6.

Embodiment 3

[0048] A self-protected flux-cored welding wire, the composition includes:

[0049] Polystyrene resin 33%

[0050] Potassium 4%

[0051] Aluminum 5%

[0052] Molybdenum 5%

[0053] Manganese 5%

[0054] Vanadium 5%

[0055] Zinc 5%

[0056] Matrix component 18%

[0057] Silicon 12%

[0058] Fluorspar 8%

[0059] Among them, the matrix component is: titanium dioxide and base material with a mass ratio of 1:5.

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
Impact absorption energyaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the field of welding and relates to a welding wire, in particular to a self-protecting flux-cored welding wire. The self-protecting flux-cored welding wire contains resin and a filling composition, wherein the filling composition is adhered through the resin and then is extruded through an extrusion molding machine to form the welding wire. The filling composition contains a welding arc stabilizer, a metal alloy, a welding slag composition and a gas forming agent. The welding wire is formed by adopting the filling composition adhered with the resin and then performing extrusion molding, and the compositions of the welding wire are even compared with an external metal shell of a flux-cored welding wire product in the prior art. When the self-protecting flux-cored welding wire is applied to welding, a resin base is combusted and decomposed, the composition at the center of the welding wire is connected with two welding parts in a uniform transition mode, so that uniform transition is produced between the two welding parts with the influence of high welding temperature, and breakage does not occur due to different thermal expansion coefficients.

Description

Technical field [0001] The invention belongs to the field of welding, and relates to a welding wire, specifically a self-shielded flux-cored welding wire. Background technique [0002] In the field of arc welding, there are three main types of arc welding: submerged arc welding (SAW), electrode arc welding (SMAW) and flux cored wire arc welding (FCAW). In submerged arc welding, heating with an arc causes coalescence between the bare metal wire and the processed metal. Cover the welding area with granular or fusible substance or flux. The welding operation starts as follows: the arc under the flux is started, and heat is generated to melt the surrounding flux, thereby forming a conductive battery under the surface that is controlled as a liquid by a continuous current. The end of the welding wire and the workpiece directly below it become molten, and the molten filler metal is deposited on the workpiece from the welding wire. The molten filler metal replaces the flux pool and f...

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): B23K35/36B23K9/23
CPCB23K9/232B23K35/3613
Inventor 向延海
Owner 唐山富银金属材料有限公司
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