Austenitic stainless steel welding wire having antibacterial function

Abstract

The invention aims to provide an austenitic stainless steel welding wire having an antibacterial function. The welding wire has the following chemical components in percentage by weight: C not more than 0.03, 0.3-0.5 of Si, 0.3-1.0% of Mn, S not more than 0.01, P not more than 0.01, 10.5-15 of Ni, 15-20 of Cr, 0.5-2.0% of Cu, 1.5-4.0 of Mo, 0.01-0.15 of Ag, 0.06-0.15 of RE, and the balance of Fe. On the basis of satisfying the basic requirements of room-temperature mechanical performance and corrosion resistance, the welding wire can enable a welding line connecting place to have excellent antibacterial performance without needing the after-welding heat treatment, and can prominently reduce the microbiological corrosion in the welding line place.

Description

technical field [0001] The invention relates to the field of welding wires, in particular to an austenitic stainless steel welding material with antibacterial function, which has unique antibacterial function on the basis of satisfying the basic mechanical requirements of austenitic stainless steel welded joints, and does not require antibacterial heat treatment after welding, It can significantly reduce the microbial corrosion behavior of welds, and can be widely used in welded connections for austenitic stainless steel related antibacterial applications. Background technique [0002] Austenitic stainless steel has high toughness and plasticity and is non-magnetic, so it has a wide range of applications. However, with the continuous development of modern industry, general-purpose austenitic stainless steels can no longer meet the requirements of specific environments. For example, the mechanical properties and corrosion resistance of austenitic stainless steel wire welds ar...

AI Technical Summary

Problems solved by technology

An important fact is that with the wide application of austenitic antibacterial stainless steel, its corresponding welding connection technology has become more and more important. If a conventional austenitic antibacterial stainless steel wire is used between austenitic antibacterial stainless steel, due to welding The temperature is high, and the copper-rich phase precipitated by antibacterial heat treatment will melt back during the welding process, which will inevitably lose the antibacterial properties of the weld joint of the material. Make the weld seam have antibacterial function, which greatly reduces its practical value

Images