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

Thick section and narrow gap T-shaped welding method

A welding method and narrow gap technology, applied in welding equipment, welding accessories, characteristics of welding rods, etc., can solve the problems of irregular welding bead, difficult welding bead planning, and lack of fusion between passes, so as to reduce the amount of welding and reduce welding Number of bead cleanings, avoiding the effect of unfused between welds

Active Publication Date: 2020-07-14
DONGFANG ELECTRIC MACHINERY
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the defects and deficiencies in the above-mentioned prior art, the present invention provides a T-shaped welding method with thick section and narrow gap. As a result, the weld bead is irregular and the weld bead planning is difficult, and when multi-layer and multi-pass welding, it is easy to form the problem of non-fusion between passes

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
  • Thick section and narrow gap T-shaped welding method
  • Thick section and narrow gap T-shaped welding method
  • Thick section and narrow gap T-shaped welding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] As a preferred embodiment of the present invention, this embodiment discloses:

[0059] Thick-section narrow-gap T-type welding method is characterized in that: comprising the following steps:

[0060] Groove design steps: process the heterosexual thick plate within 60mm above the welding end into a rectangular structure, the width of the rectangular structure is not less than the maximum width of the special-shaped thick plate 1; the welding surface of the rectangular structure is an oblique welding surface with a certain slope 4 , forming a Type I narrow gap groove structure, the gap between the root of the Type I narrow gap groove and the planar thick plate 2 is less than 16mm, and the gap between the upper end of the Type I narrow gap groove and the planar thick plate 2 is less than 20mm ; Open a conventional K-shaped bevel at both ends of the special-shaped thick plate 1 with a certain length, and leave a certain gap between the K-shaped bevel and the I-like narrow...

Embodiment 2

[0067] As another preferred embodiment of the present invention, with reference to the attached Figure 1-6 , this example discloses:

[0068] Thick-section narrow-gap T-type welding method is characterized in that: comprising the following steps:

[0069] Groove design steps: process the heterosexual thick plate within 60mm above the welding end into a rectangular structure, the width of the rectangular structure is not less than the maximum width of the special-shaped thick plate 1; the welding surface of the rectangular structure is an oblique welding surface with a certain slope 4 , forming a Type I narrow gap groove structure, the gap between the root of the Type I narrow gap groove and the planar thick plate 2 is less than 16mm, and the gap between the upper end of the Type I narrow gap groove and the planar thick plate 2 is less than 20mm ; Open a conventional K-shaped bevel at both ends of the special-shaped thick plate 1 with a certain length, and leave a certain gap...

Embodiment 3

[0076] As another preferred embodiment of the present invention, with reference to the attached Figure 1-11 , this example discloses:

[0077] The use of robots 113 is the direction of the future manufacturing industry. For the robot 113 welding of special-shaped thick plates and ultra-thick plates, it is necessary to improve the welding quality and efficiency of the arc welding robot 113. Therefore, by changing the welding structure of the product, we change the welding groove of the thick plate and the ultra-thick plate, and carry the new welding technology on the arc welding robot 113 to reduce the welding amount of the ultra-thick section structural parts, thereby increasing the arc welding robot 113. The welding efficiency has opened up a new field of intelligent welding for the arc welding robot 113 in the hydropower industry of power generation equipment.

[0078] Narrow gap gas shielded welding welding technology is a new type of welding technology, which mainly has...

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
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a thick section and narrow gap T-shaped welding method, which relates to the technical field of production and manufacture of thick plate and ultra-thick plate welding in the hydropower industry. According to the invention, the butt groove between a special-shaped structure thick plate and a flat thick plate is changed first, that is, the range of 60mm above the welding endof the special-shaped thick plate is processed into a rectangular structure, and the arc weld bead is changed into a straight weld bead, which can simplify the robot welding trajectory and reduce theprogramming difficulty; and the welding surface of the rectangular structure is set as an oblique welding surface with a certain slope, the welding groove between the special-shaped thick plate and the flat thick plate is designed into an I-shaped narrow gap groove structure, and the original multilayer and multi-pass welding is changed into one layer and one pass; and therefore, the welding process is simplified, the probability of non-fusion among the weld beads and the cleaning times of the weld beads are reduced, and the welding efficiency is improved.

Description

technical field [0001] The invention relates to the production and manufacturing technical field of welding thick plates and ultra-thick plates in the hydropower industry, and more specifically relates to a T-shaped welding method with thick sections and narrow gaps. Background technique [0002] Thick plate and ultra-thick plate structures are widely used in the hydropower manufacturing industry. The welding joints of thick plates mainly include butt joints and T-joints. The traditional welding method of T-joint joints generally uses K-shaped grooves on the workpiece for multi-layer and multi-pass MAG welding. With the continuous increase of the thickness of the welded structure, the groove area of ​​the thick plate increases sharply, resulting in a multiplied increase in the amount of welding work, low production efficiency, and poor fusion during multi-layer and multi-pass welding. [0003] Since robot welding can greatly improve the stability of welding quality, the appl...

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): B23K9/173B23K9/235B23K9/26B23K9/28B23K9/12B23K9/32B23K9/02
CPCB23K9/0213B23K9/12B23K9/173B23K9/235B23K9/26B23K9/28B23K9/32
Inventor 金宝钟磊郭中才范潇姚文选付永贵王平林松彭谢宜
Owner DONGFANG ELECTRIC MACHINERY
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