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

Welding method for heavy U steel

A welding method and channel steel technology, applied in welding equipment, welding equipment, welding accessories, etc., can solve the problems of waste products, bending and torsional deformation, and increasing the cost of flame correction.

Inactive Publication Date: 2016-02-17
QINGDAO BAIJIANCHENG ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the welding process, the components will shrink longitudinally and laterally to cause bending and torsion deformation, which will produce waste products. After welding, flame correction is required, which increases the cost of post-weld flame correction, and the production efficiency is not high.

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
  • Welding method for heavy U steel
  • Welding method for heavy U steel
  • Welding method for heavy U steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] See attached figure 1 , 2 , 3 shown.

[0014] In order to prevent angular deformation, the specific welding sequence is as follows: ①Adopt rigid fixing method; fix the supports (4) in the groove respectively on the inner side of the shaped steel wing plate (6). The purpose is to prevent the inner and outer corner deformation that may be produced by the steel during the welding process.

[0015] Carry out root welding: The welding method adopts carbon dioxide gas shielded welding that produces the least welding deformation.

[0016] Perform cover welding: In order to improve the appearance quality of the weld, double wire submerged arc welding is selected for cover welding. Due to the large amount of submerged arc welding welding deformation, the weld seam shrinks longitudinally during the welding process, resulting in deflection deformation of the component. In order to prevent the occurrence of flexural deformation, the anti-deformation method was chosen. The spec...

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

No PUM Login to View More

Abstract

The invention relates to a welding method for heavy U steel. The welding method comprises the steps that in-channel supports are arranged on the inner sides of wing plates of the U steel in a point fixed manner respectively; carbon dioxide arc welding generating the minimum welding deformation is used for carrying out backing welding on the in-channel supports and the wing plates of the U steel; and then cosmetic welding is carried out. The situation that bending and torsion deformation caused by longitudinal and transverse shrinkage contraction in the manufacturing and welding process of the structure of the heavy U steel is caused, and consequently waste is generate is avoided. The postwelding flame correction cost is reduced, and production efficiency is improved.

Description

technical field [0001] The invention relates to a welding method for a section steel component. Background technique [0002] [Channel steel has a cross-section of 1m x 0.5m x 22m, a thickness of 40mm, and a weight of about 13 tons. It cannot be processed by mechanical pressing, but can only be processed by welding. However, during the welding process, the components will shrink longitudinally and laterally to cause bending and torsion deformation, which will produce waste products. After welding, flame correction is required, which increases the cost of post-weld flame correction, and the production efficiency is not high. Contents of the invention [0003] The present invention aims at the deficiencies of the prior art, and provides a method to prevent the bending and torsion deformation caused by the longitudinal and transverse shrinkage of the components that will occur during the manufacture and welding of heavy-duty [shaped steel structures], thus resulting in waste ...

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): B23K9/16B23K9/18B23K9/32B23K37/04
Inventor 张栋
Owner QINGDAO BAIJIANCHENG ENVIRONMENTAL PROTECTION TECH CO LTD
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