Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Single-arc double-wire swing surfacing process

An arc and process technology, applied in the field of single-arc double-wire swing surfacing technology, can solve the problems of difficult performance requirements, high surfacing dilution rate, large penetration depth, etc. Pure effect of solder layer metal

Inactive Publication Date: 2013-02-06
HAIMEN WEILING WELDING MATERIAL MFG
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the modern surfacing market, there are many workpieces that require thin surfacing layers, such as surfacing welding of continuous casting rolls of continuous casting machines in steel mills, surfacing welding of composite wear-resistant steel plates, etc. These workpieces require the thickness of the surfacing layer to be below 5mm. It is even about 2mm, and the welding layer is required to achieve high performance. Due to the traditional single-wire surfacing welding, the penetration depth is large and the surfacing welding dilution rate is high. If you want to press one or two layers, you must reach the alloy composition. Performance requirements are difficult or costly

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

[0010] The single-arc double-wire oscillating surfacing welding process of the present invention has the following process steps: adopt a single-power DC welding machine, connect positive and negative electrodes to two separate insulated wire feeder columns, and the two wires sent by the wire feeder have an included angle of 7°, the two wire feeders are installed on the same welding mechanical swing, swinging during welding, the swing width is 10mm, the swing frequency is 20 times / min, the surfacing welding current is 300A, the voltage is 26V, and the welding speed is 120mm / min, the hardness HRC is 70. The welding wire used is high chromium cast iron welding wire, and the weight percentage of high chromium cast iron welding wire is: C 5%; Cr 28%; Mn 2% Fe 65%.

Embodiment 2

[0012] The single-arc double-wire oscillating surfacing welding process of the present invention has the following process steps: adopt a single-power DC welding machine, connect positive and negative electrodes to two separate insulated wire feeder columns, and the two wires sent by the wire feeder have an included angle of 10°, the two wire feeders are installed on the same welding mechanical swing, swinging during welding, the swing width is 30mm, the swing frequency is 40 times / min, the surfacing welding current is 400A, the voltage is 31V, and the welding speed is 160mm / min, the hardness HRC is 80. The welding wire used is high chromium cast iron welding wire, and the weight percentage of high chromium cast iron welding wire is: C 5.5%; Cr 29%; Mn 3% Fe 62.5%.

Embodiment 3

[0014] The single-arc double-wire oscillating surfacing welding process of the present invention has the following process steps: adopt a single-power DC welding machine, connect positive and negative electrodes to two separate insulated wire feeder columns, and the two wires sent by the wire feeder have an included angle of 15°, the two wire feeders are installed on the same welding mechanical swing, swinging during welding, the swing width is 60mm, the swing frequency is 60 times / min, the surfacing welding current is 500A, the voltage is 36V, and the welding speed is 200mm / min, the hardness HRC is 90. The welding wire used is high chromium cast iron welding wire, and the weight percentage of high chromium cast iron welding wire is: C 6%; Cr 30%; Mn 4% Fe 60%.

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
hardnessaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a single-arc double-wire swing surfacing process. The single-arc double-wire swing surfacing process is characterized by comprising the following steps that: a single-power direct-current welding machine is adopted; two independent insulated wire feeder columns are connected with a positive electrode and a negative electrode respectively; the included angle between two wires from wire feeders is 0-15 DEG; the two wire feeders are mounted on the same welding mechanical swinger; and the swinger does the swing movement during the welding process, the swing width is 10-50mm, the swing frequency is 16-60times / min, the surfacing current is 300-500A, the voltage is 26-36V, the welding speed is 120-200mm / min, and the Rockwell hardness HRC is more than 60. The single-arc double-wire swing surfacing process has the advantages as follows: 1, the single-power double-wire welding process is adopted, so that the depth of fusion is reduced, the dilution rate is greatly reduced and is less than 20% of that in the single-wire welding process, and the depth of fusion can be controlled to be less than 0.5mm; and 2, the swing surfacing process is used, so that the weld pool retention time is long, impurities and gases can be fully overflowed, metal in a surfacing layer is pure, the mechanical performance is improved, and the surfacing efficiency is improved by 2-3 times.

Description

technical field [0001] The invention relates to a surfacing welding process, in particular to a single-arc double-wire swinging surfacing welding process. Background technique [0002] In the modern surfacing market, there are many workpieces that require thin surfacing layers, such as surfacing welding of continuous casting rolls of continuous casting machines in steel mills, surfacing welding of composite wear-resistant steel plates, etc. These workpieces require the thickness of the surfacing layer to be below 5mm. It is even about 2mm, and the welding layer is required to achieve high performance. Due to the traditional single-wire surfacing welding, the penetration depth is large and the surfacing welding dilution rate is high. If you want to press one or two layers, you must reach the alloy composition. Performance requirements are more difficult or costly. Contents of the invention [0003] The purpose of the present invention is to provide a single arc double wire...

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): B23K9/04B23K35/30
Inventor 苏红菱
Owner HAIMEN WEILING WELDING MATERIAL MFG
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
Eureka Blog
Learn More
PatSnap group products