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

Welded structure of quenching and tempering steel alloy with middle carbon and low-alloy steel and method thereof

A low-alloy steel and welding method technology, which is applied to the welding structure of medium-carbon quenched and tempered alloy steel and low-alloy steel, and the welding field of medium-carbon quenched and tempered alloy steel and low-alloy steel, which can solve weld toe cracks, structural failure, etc. problems, to achieve good mechanical properties, improve component performance, and simple steps

Inactive Publication Date: 2008-02-27
SHANGHAI HEAVY MACHINERY PLANT
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it is at the stop end of the gap between the medium-carbon quenched and tempered alloy steel and the low-low alloy steel, the stress concentration acts here, and it is very easy to produce weld toe cracks, resulting in structural failure.

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
  • Welded structure of quenching and tempering steel alloy with middle carbon and low-alloy steel and method thereof
  • Welded structure of quenching and tempering steel alloy with middle carbon and low-alloy steel and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The welded structure of medium carbon quenched and tempered alloy steel and low alloy steel of the present invention is shown in Figure 3, comprises medium carbon quenched and tempered alloy steel part, low alloy steel part and welded joint, and described welding part is filled with welding meat 4, in the There is also a transition layer 8 between the welding meat and the medium carbon quenched and tempered alloy steel and the welding meat and the low alloy steel. The composition of the transition layer includes, by weight, carbon≤0.12%, manganese≤1.60%, silicon≤0.75%, sulfur≤0.035%, phosphorus≤0.04%, and the rest is iron. A groove is provided at the contact position between the medium-carbon quenched and tempered alloy steel part and the low-alloy steel part, and the welding part composed of the grooves on both sides is filled with the weld metal 4 . On both sides of the interface between the welded meat 4 and the groove, there will be a heat-affected zone 5. In the he...

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 discloses a welding structure of medium carbon tempering alloy steel and low alloy steel, which comprises the following parts: medium carbon tempering alloy steel element, low alloy steel element and welding joint, wherein the welding joint is filled with welding meat; one transition layer is set between the welding meat and the medium carbon tempering alloy steel and between the welding meat and low alloy steel separately. The invention has better mechanic property with fastened and reliable component, which is easy to realize to improve the component property greatly.

Description

technical field [0001] The invention relates to a welding structure of alloy steel, in particular to a welding structure of medium carbon quenched and tempered alloy steel and low alloy steel. The invention also relates to a welding method of medium-carbon quenched and tempered alloy steel and low alloy steel. Background technique [0002] In today's industrial equipment, especially in large industrial machinery, metal components often use medium carbon quenched and tempered alloy steel such as 42CrMo, and these medium carbon quenched and tempered alloy steel often need to be welded with some low alloy steel, including low carbon steel . As shown in FIG. 1 , these welded structures include a medium carbon quenched and tempered alloy steel part 1 , a low alloy steel part 2 and a welded joint 3 where the medium carbon quenched and tempered alloy steel contacts the low alloy steel. Due to the high carbon content of medium carbon quenched and tempered alloy steel, the weldabil...

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): B23K37/00F16B5/08
Inventor 李荣涛陈磊冒琳艳
Owner SHANGHAI HEAVY MACHINERY PLANT
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