High-tenacity wear-resisting overlaying alloy welding wire for cold-rolling support roller

An alloy welding wire, high wear resistance technology, applied in welding medium, welding equipment, welding equipment and other directions, can solve the problem of difficult to guarantee toughness

Inactive Publication Date: 2011-11-16
天津雷公焊接材料有限公司
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is relatively easy to obtain a metal with a hardness of HRC48, but its toughness is difficult to guarantee,...

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
  • High-tenacity wear-resisting overlaying alloy welding wire for cold-rolling support roller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The invention uses a low carbon steel strip, rolls it into a tube, and fills the tube with impurities and additives. Impurities are minerals and alloy powders. The weight percentage of the chemical composition of the alloy wire powder is C: 0.2-0.4; Mn: 1.0-2.0; Si: 0.5-1.5; Cr: 3.0-6.0; Mo: 0.5-2.0; Ni: 1.0-3.0; ; S ≤ 0.01; wire alloy content of 6 to 12%. Impurities include one or several minerals such as CaF2, CaCO3, Na3SiF6, and LiF2, with a content of 2-5%; one or several of vanadium, tungsten, niobium, titanium, aluminum and other elements, with a total content of 0.3-2.0% A small amount of rare earth is added in it, the content is 0.1-0.5%, the powder is uniformly mixed in advance, and the particle size is 80-160 mesh. After adding the powder, the welding wire is combined with HJ107 flux, the current is 300-500 amps, the voltage is 30-35 volts, the speed is 350-600 mm / min, the interlayer temperature is 200-300 ° C, slow cooling after welding, and then passes thr...

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 high-tenacity wear-resisting overlaying alloy welding wire for a cold-rolling support roller, and the overlaying alloy welding wire provided by the invention has excellent tenacity and suitable hardness. The alloy welding wire comprises the following chemical components by weight percent: 0.2-0.4% of C, 1.0-2.0% of Mn, 0.5-1.5% of Si, 3.0-6.0% of Cr, 0.5-2.0% of Mo, 1.0-3.0% of Ni, less than or equal to 0.02% of P, less than or equal to 0.01% of S, and impurities, wherein the impurities comprise mineral substances and alloy powder; the mineral substances, the content of which is 2-5%, comprises one or more than one of CaF2, CaCO3, Na3SiF6 and LiF2; the alloy powder, the total content of which is 0.3-2.0%, comprises one or more than one of vanadium, tungsten, niobium, titanium, aluminum, and the like; and 0.1-0.5% of rare earth is additionally added. The welding wire is matched with a suitable welding process, thereby acquiring the hardness of HRC (Rockwell hardness) 48-53. A low-carbon steel belt is used for wrapping the alloy powder and the mineral substances and then rolling and drawing are performed, thereby forming the welding wire. A reasonable component design is matched with HJ107, grains are refined and sulfur-removing components are added, so that the high-tenacity wear-resisting overlaying alloy welding wire is free from hot crack in an overlaying process, has the hardness and tenacity suitable for cold-rolling rollers, and meets the demand of overlaying a cold roller.

Description

technical field [0001] The invention relates to an alloy welding wire, in particular to an alloy welding wire with high toughness and high wear resistance for overlay welding of cold-rolled support rolls. Background technique [0002] The cold roll back-up roll will bear huge positive pressure and shear force when it is working, which will easily cause the roll surface to fall off in pieces. The smaller the deformation of the back-up roll during rolling, the better, which requires the hardness of the surfacing layer metal to be at least above HRC48. It is relatively easy to obtain a metal with a hardness of HRC48, but its toughness is difficult to guarantee, and the early initiation and expansion of fatigue cracks will not be avoided, resulting in roll damage. [0003] There is an urgent need to develop a surfacing alloy that has both suitable hardness to meet cold rolling industrial and mining, and sufficient toughness to delay the initiation and expansion of cracks. This...

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): B23K35/30B23K35/368B23K35/40B23K9/04
Inventor 雷万钧陈泽荣
Owner 天津雷公焊接材料有限公司
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