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Austenitic stainless steel welding wire having antibacterial function

A technology of austenitic stainless steel and stainless steel, applied in welding medium, manufacturing tools, welding equipment, etc., can solve the problems of antibacterial properties of lost material weld joints, reduced practical value, etc., and achieve good room temperature mechanical properties and good welding quality , the effect of inhibiting microbial corrosion of welds

Inactive Publication Date: 2015-11-18
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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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

Method used

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  • Austenitic stainless steel welding wire having antibacterial function
  • Austenitic stainless steel welding wire having antibacterial function
  • Austenitic stainless steel welding wire having antibacterial function

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Embodiment

[0020] The chemical compositions of the austenitic stainless steel welding wires with antibacterial properties of Examples 1-6 are shown in Table 1. Controlled smelting is carried out according to the chemical composition range of the welding wire of the present invention. The smelted steel ingots are rolled into wire rods, and then heat treated, drawn, and finally obtained. diameter of the wire. Manual arc welding was carried out on the test plate with welding wires of three components. The test plate was a 20mm thick 316L stainless steel plate, the welding voltage was 13V, the welding current was 180A, the welding speed was 100mm / min, the shielding gas was high-purity argon, and the interlayer temperature was less than 100°C.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
CPCB23K35/3086B23K35/0261
Inventor 席通杨春光赵金龙武学强杨柯
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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