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

Rotating submerged-arc high-speed welding method for thin plate

A welding method and submerged arc welding technology, applied in welding equipment, arc welding equipment, welding/welding/cutting articles, etc., can solve the problems of high deposition efficiency of submerged arc welding, complicated welding method implementation, and expensive welding equipment, etc. Achieve significant economic superiority, easy engineering promotion, and prevent weld penetration defects

Active Publication Date: 2020-07-03
JIANGSU UNIV OF SCI & TECH
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of low welding efficiency, complex welding method implementation and expensive welding equipment for the current welding technology that is difficult to meet the high-speed welding requirements of thin plates, and comprehensively utilize the low assembly requirements of rotary arc welding groove and the deposition efficiency of submerged arc welding high-speed welding method for thin plates is proposed

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
  • Rotating submerged-arc high-speed welding method for thin plate
  • Rotating submerged-arc high-speed welding method for thin plate
  • Rotating submerged-arc high-speed welding method for thin plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Figure 8 Shown are the front and back weld formation photos of two thin plates 6 to be welded with a plate thickness δ of 2mm after high-speed rotary submerged arc butt welding. in, Figure 8 (a) and Figure 8 (b) are the assembly gap G 1 1mm, misalignment amount C 1 The front and back welding seam forming photos when it is 0.5mm, the width G of the forming groove 7-1 of the copper backing plate 7 used at this time 2 3mm, depth h 2 The set welding current I is 370A, the arc voltage is 35V, the arc rotation speed n is 4500r / min, the arc rotation radius r is 2mm, and the welding speed V w It is 2300mm / min. Figure 8 (c) and Figure 8 (d) are the assembly gap G 1 0mm, misalignment amount C 1 The front and back welding seam forming photos when it is 0.2mm, the width G of the forming groove 7-1 of the copper backing plate 7 used at this time 2 4mm, depth h 2 The set welding current I is 440A, the arc voltage is 36V, the arc rotation speed n is 6000r / min, the arc ...

Embodiment 2

[0049] Such as Figure 4 As shown, the two thin plates 6 to be welded with the thickness δ of 3mm and 4mm are assembled into a lap groove form, and the assembly gap G 1 It is 0.5mm. Before welding, use a welding pressure plate to press the two thin plates 6 to be welded to be welded on the lifting backing plate 7-2 and the steel fixed backing plate 7-4 respectively. On the lifting backing plate 7-2 There are nine lifting platforms 7-3 evenly placed in three rows along the welding direction below. Before welding, adjust the torch inclination α of the rotary submerged arc welding torch 1 above the lap joint 1 30°, upper offset distance C 2 0mm, right offset distance C 3 is 0mm, the set welding current I is 350A, the arc voltage is 32V, the arc rotation speed n is 3000r / min, the arc rotation radius r is 2mm, and the welding speed V w It is 3000mm / min. After high-speed rotary submerged arc welding, a thin plate lap joint with good shape and meeting the requirements of use is ...

Embodiment 3

[0051] Such as Figure 5 As shown, the two thin plates 6 to be welded with a thickness δ of 5mm are assembled into a fillet groove form, and the assembly gap G 1 Before welding, use a welding pressure plate to press the two thin plates 6 to be welded on the copper backing plate respectively, and the four corners are respectively set with a width G along the welding direction. 2 3mm, depth h 2 1.5mm forming groove 7-1. Before welding, adjust the torch inclination α of the rotary submerged arc welding torch 1 above the fillet joint groove 1 60°, upper offset distance C 2 2.5mm, right offset distance C 3 The set welding current I is 500A, the arc voltage is 38V, the arc rotation speed n is 7200r / min, the arc rotation radius r is 4mm, and the welding speed V w It is 1000mm / min. After high-speed rotary submerged arc welding, a well-formed thin-plate fillet joint that meets the requirements of use is obtained.

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
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a rotating submerged-arc high-speed welding method for a thin plate. The method comprises the following steps that the assembled to-be-welded thin plate is pressed on a weldingbase plate in the welding direction, and welding flux and a welding wire matched with the to-be-welded thin plate are selected according to the material of the to-be-welded thin plate; according to the plate thickness and the groove form of the to-be-welded thin plate, the rotating submerged arc welding method and process parameters are set, finally, the welding flux is laid in the welding direction and the welding arc is ignited at the start welding position, a rotating submerged arc welding torch is controlled to drive the welding arc to rotate at a constant speed in the welding flux according to the set rotation speed and direction, and meanwhile, a dragging mechanism drives the rotating submerged arc welding torch to move to the front of welding overall, so that the rotating submergedarc high-speed welding of the thin plate is achieved. By adopting the rotating submerged-arc high-speed welding method for the thin plate, the implementation cost is low, the welding speed of the single welding wire arc can be remarkably increased, the welding assembly requirement is reduced, and the welding method is particularly suitable for a thin plate welding occasion.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a rotary submerged arc high-speed welding method for thin plates. Background technique [0002] For thin plate welding widely used in thin-walled parts such as locomotives and ships, commonly used automatic welding methods include melting electrode (or non-melting electrode) gas shielded welding, laser welding, friction stir welding, etc. Among them, the implementation cost of conventional melting pole (or non-melting pole) gas shielded welding is low, but the welding heat input control requirements are high; the welding speed of laser welding is fast, but the assembly requirements are high, the welding system is complicated and expensive; the friction stir welding The welding position is limited, the material of the stirring needle is special, and the performance requirements are high. [0003] The Chinese invention patent number is "ZL201310387751.9", and the title is "a lase...

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): B23K9/18B23K9/025B23K33/00B23K101/18
CPCB23K9/18B23K9/025B23K33/004B23K2101/185
Inventor 朱杰王加友张陆霄姜玉清王纳林登强
Owner JIANGSU UNIV OF SCI & TECH
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