Environmental Criteria for Shielding Gas Selection during Arc Welding of Stainless Steels

2016 ◽  
Vol 246 ◽  
pp. 275-278
Author(s):  
Jolanta Matusiak ◽  
Joanna Wyciślik ◽  
Andrzej Wyciślik
Keyword(s):  
Chemical Composition ◽  
Stainless Steels ◽  
Arc Welding ◽  
Gas Shielded Arc Welding ◽  
Welding Fume ◽  
Emission Rates ◽  
Shielding Gas ◽  
Chromium Vi ◽  
Environmental Criteria ◽  
Carcinogenic Substances

Gas-shielded arc welding of stainless steels belongs to processes which are characterized by the highest concentration of chromium (VI) and nickel in welding fume. These substances are carcinogenic to humans. Material and technological conditions of gas-shielded arc welding of stainless steels influence fume emission rates and chemical composition of welding fume. This fact creates the possibility of process optimization in aspect of emission rates and chemical composition of welding fume including carcinogenic compounds. This paper presents the correlation between shielding gas compositions and fume emission rates and carcinogenic substances contents during gas-shielded arc welding of stainless steels using MIG/MAG, Cold Arc and CMT methods.

scholarly journals Effect of liquid glass type on hygienic characteristics of coated electrodes for arc welding of tin bronzes

2021 ◽  
Vol 280 ◽  
pp. 09018
Author(s):  
Oleg Levchenko ◽  
Olga Bezushko ◽  
Taras Maidanchuk ◽  
Anna Lukianenko ◽  
Olga Goncharova ◽  
...  
Keyword(s):  
Arc Welding ◽  
Liquid Glass ◽  
Copper Alloys ◽  
Copper Oxides ◽  
International Standards ◽  
Welding Fume ◽  
Emission Rates ◽  
Sodium Potassium ◽  
Harmful Emissions ◽  
Glass Type

The results of investigations of chemical composition and emission rates of the welding fume, generated during welding using electrodes for copper alloys, are presented with the aim of improvement of their sanitary and hygienic characteristics. It is shown that in order to create new grades of welding electrodes with improved hygienic characteristics, it is necessary to have the data of the initial sanitary and hygienic evaluation in accordance with international standards. It was established that the use of binder based on pure lithium liquid glass in the coating of electrodes for welding copper alloys, increases the rate of welding fume emission into the air, as well as the content of manganese and copper oxides in it. The minimum rates of harmful emissions were recorded during the use of sodium-potassium binder, which is recommended for mass production of this type of electrodes.

Tensile Properties of Martensitic Stainless Steel Weldments

2007 ◽  
Vol 23 ◽  
pp. 319-322 ◽  
Author(s):  
R. Yilmaz ◽  
Ali Türkyilmazoglu
Keyword(s):  
Stainless Steel ◽  
Stainless Steels ◽  
Arc Welding ◽  
Martensitic Stainless Steel ◽  
Shielding Gases ◽  
Gas Composition ◽  
Shielding Gas ◽  
Martensitic Stainless Steels ◽  
Gas Tungsten Arc ◽  
Microhardness Profile

In this study, AISI 420 martensitic stainless steels were welded by GTAW (gas tungsten arc welding) using ER 316L consumables. Pure argon, argon + 25% He and argon + 5% N2 were used as shielding gases. The obtained results indicated that shielding gases have some effect on the properties of the martensitic stainless steel weldments. The use of argon+5%N2 provides the highest tensile strength values and higher microhardness profile compared to the other shielding gas composition used.

Application of pulsed impact in consumable electrode gas-shielded arc welding (Review)

2019 ◽  
Vol 2019 (8) ◽  
pp. 30-40
Author(s):  
V.A. Lebedev ◽  
◽  
S.V. Dragan ◽  
G.V. Zhuk ◽  
S.V. Novikov ◽  
...  
Keyword(s):  
Arc Welding ◽  
Consumable Electrode ◽  
Gas Shielded Arc Welding

INCO-WELD C

Alloy Digest ◽  
1996 ◽  
Vol 45 (1) ◽  
Keyword(s):  
Tensile Properties ◽  
Stainless Steels ◽  
Arc Welding ◽  
Carbon Steels ◽  
Alloy Electrode ◽  
Shielded Metal Arc Welding ◽  
Medium Carbon ◽  
Metal Arc Welding ◽  
Spring Steels ◽  
Medium Carbon Steels

Abstract INCO WELD C Electrode is a stainless-alloy electrode especially designed for shielded-metal-arc welding of a broad range of materials, including many difficult-to-weld compositions. It can be used in stainless steels, mild and medium-carbon steels,and spring steels. This datasheet provides information on composition, hardness, and tensile properties. It also includes information on joining. Filing Code: SS-632. Producer or source: Inco Alloys International Inc.

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