Influence of nano-sized flux materials in the reduction of the Cr (VI) in the stainless steel welding fumes

被引：12
作者：
Vishnu, B. R. [1 ]
Sivapirakasam, S. P. [1 ]
Satpathy, K. K. [2 ]
Albert, Shaju K. [3 ]
Chakraborty, Gopa [3 ]
机构：
[1] Natl Inst Technol, Dept Mech Engn, Ind Safety Lab, Tiruchirappalli 620015, Tamil Nadu, India
[2] Indira Gandhi Ctr Atom Res, Environm & Safety Div, Kalpakkam 603102, Tamil Nadu, India
[3] Indira Gandhi Ctr Atom Res, Mat Technol Div, Kalpakkam 603102, Tamil Nadu, India
来源：
JOURNAL OF MANUFACTURING PROCESSES | 2018年 / 34卷
关键词：
Cr(VI) concentration; SMAW; Nano compound; Arc stability; Weld spatters visualization; HEXAVALENT CHROMIUM; MECHANICAL-PROPERTIES; METAL; GAS; EXPOSURE; PARAMETERS; EMISSIONS;
D O I：
10.1016/j.jmapro.2018.07.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
New stainless steel Shielded Metal Arc Welding (SMAW) consumables were developed for low fume emission by modifying the flux materials with the nano compound substitution. The strategy of replacing the existing calcite with its nano compound in the flux brought out a noticeable reduction in welding fumes as well as the hexavalent chromium(Cr(VI)) concentration. Arc stability during welding process was monitored with the help of voltage probability density function, and the weld spatters visualization using the in-situ Digital Storage Oscilloscope (DSO) and infrared camera devices respectively. Almost 85-100% recovery of metals in the weld metal was attained for the experimental electrodes, which produced the least fume emission. An effective reduction of hexavalent chromium concentration up to 42% was achieved by one of the experimental electrodes.
引用
收藏
页码：713 / 720
页数：8
相关论文
共 35 条
  • [1] Hydrocarbon-metal reactions during metal arc welding under oil (MAW-UO)
    Almostaneer, H.
    Cadigan, C.
    Liu, S.
    Olson, D. L.
    Richards, R.
    Liang, H. J.
    [J]. SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2011, 16 (07) : 619 - 629
  • [2] [Anonymous], 1990, IARC Monographs on the Evauation of Carcinogenic Risks to Humans, V49, P49
  • [3] [Anonymous], 1501112009 ISO
  • [4] Effects of flux composition on the element transfer and mechanical properties of weld metal in submerged arc welding
    Bang, Kook-soo
    Park, Chan
    Jung, Hong-chul
    Lee, Jong-bong
    [J]. METALS AND MATERIALS INTERNATIONAL, 2009, 15 (03) : 471 - 477
  • [5] Barborak D, 1999, ROBOTICS AUTOMATION, P3053
  • [6] Two-dimensional time-dependent modelling of fume formation in a pulsed gas metal arc welding process
    Boselli, M.
    Colombo, V.
    Ghedini, E.
    Gherardi, M.
    Sanibondi, P.
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2013, 46 (22)
  • [7] Chai C S, 1983, J. Mater. Energy Syst, V5, P160, DOI DOI 10.1007/BF02833369
  • [8] Chen B, 2009, WELD J, V88, p99S
  • [9] A semi-empirical model of the fume formation from gas metal arc welding
    Deam, RT
    Simpson, SW
    Haidar, J
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2000, 33 (11) : 1393 - 1402
  • [10] Control of exposure to hexavalent chromium and ozone in gas metal arc welding of stainless steels by use of a secondary shield gas
    Dennis, JH
    French, MJ
    Hewitt, PJ
    Mortazavi, SB
    Redding, CAJ
    [J]. ANNALS OF OCCUPATIONAL HYGIENE, 2002, 46 (01) : 43 - 48
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