800MPa high-strength steel welding rod and preparation method

An 800mpa, welding rod technology, applied in welding equipment, welding medium, manufacturing tools, etc., can solve problems such as unsatisfactory process and mechanical properties, and achieve excellent slag removal, low smoke and dust, and beautiful weld seams

Inactive Publication Date: 2020-09-11
昂科万德(武汉)科技有限公司
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the existing 800MPa grade high-strength steel supporting welding rod process and the problem of unsatisfactory mechanical properties

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
  • 800MPa high-strength steel welding rod and preparation method
  • 800MPa high-strength steel welding rod and preparation method
  • 800MPa high-strength steel welding rod and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] The present invention provides a high-strength steel electrode, including a welding core and a coating. Three embodiments are provided below, wherein the composition of the welding core is as shown in Table 2, and the composition of the coating is as shown in Table 3. Example 1 The outer diameter of the Ф4.0mm welding rod prepared in ~3 is 6.3~6.5mm.

[0043] Table 2 Chemical Composition of Weld Core (wt%)

[0044]

[0045] The composition (wt%) of table 3 drug skin

[0046]

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
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention provides an 800MPa high-strength steel welding rod. The 800MPa high-strength steel welding rod comprises a core wire and a coating, and the core wire comprises the following components of, in percentage by mass, 0.04%-0.08% of C, 1.9%-2.0% of Mn, less than or equal to 0.4% of Si, less than or equal to 0.005% of S, less than or equal to 0.005% of P, 2.5%-3.0% of Ni, 0.4%-0.8% of Mo, less than or equal to 93.5% of iron and the balance inevitable impurities. The 800MPa high-strength steel welding rod has the advantages of being good in all-position welding process performance, attractive in weld joint and excellent in mechanical property, and the diffusible hydrogen content of deposited metal reaches an ultralow hydrogen level.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a high-strength steel welding rod and its application. Background technique [0002] High-strength steel is widely used in engineering machinery, bridges and other projects, so it is required that the welding consumables with it have good mechanical properties to prevent safety hazards caused by unstable weld performance to construction machinery and bridges. However, the existing welding rods for 800MPa high-strength steel have problems such as unsatisfactory process performance and mechanical properties. Therefore, it is necessary to design an electrode that can meet the welding requirements of 800MPa high-strength steel, has good all-position welding process performance, beautiful weld seam, excellent mechanical properties, and the content of diffused hydrogen in the deposited metal reaches an ultra-low hydrogen level. Contents of the invention [0003...

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): B23K35/02B23K35/30B23K35/36B23K35/40
CPCB23K35/0266B23K35/3053B23K35/3601B23K35/40
Inventor 宋成刘树新
Owner 昂科万德(武汉)科技有限公司
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap