What is it about?
During submerged arc welding (SAW), slag is generated. It is thrown away as a waste and this causes severe disposal and environmental problems. Though several attempts have been made to reuse the slag along with flux but such attempts have fallen short of savings in reality.
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Why is it important?
The efficacy of applied structured strategy has been proved unanimously, by reinstating the different mechanical and metallographic properties of SAW bead well within limits, as per the American Society of Welding (ASW) norms. An empirical analysis further motivates to materialise the proposed approach to inculcate associated benefits of green-SAW in future.
Perspectives
Focused literature survey has been conducted and this put forth the various reasons for less fruitful results. While, not ignoring the delicacies of SAW process, a systematic quantitative methodology for desired optimisation of slag-flux mixture was chalked out. A case study in a pipe fabricating Indian SME has successfully implemented the proposed approach and validates it for similar prospects.
Dr Bikram Jit Singh
MMDU Mullana
Read the Original
This page is a summary of: An optimistic approach to blend recycled-slag with flux: a step towards green SAW, International Journal of Process Management and Benchmarking, January 2016, Inderscience Publishers,
DOI: 10.1504/ijpmb.2016.077628.
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