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UNDERWATER
WELDING
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CONTENTS INTRODUCTION CLASSIFICATIONS PRINCIPLE ADVANTAGES DISADVANTAGES CONCLUSION
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INTRODUCTION
It is an important toolfor undr!atr
fa"ri#ation !or$s% An& rpair mt'od
!ill r(uir t' us ofundr !atr !ldin)%
Su#' as num"r ofo*s'or stru#turs
in#ludin) oil drillin)ri)s+ pip lins%
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CLASSIFICATIONS
WET WELDING,-anual mtal ar# !ldin).
DR/ WELDING,0&pr "ari# !ldin).
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Wet welding:
It is dir#tl& 1pos to t' !tn2ironmnt%
It is opn air !ldin)%
-ost *#ti2 3#int #onomi#almt'od%
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Dry Welding:
T'is mt'od produ# 'i)' (ualit& !ldd 4oints%
Gas tun)stn ar# !ldin) us t'is
pro#ss% T' ara undr t' 5oor of t' 'a"itat is
opn to !atr%
T' !ldin) is don in t' dr& "ut at t''&drostati# prssur of t' sa !atrsurroundin) t' 'a"itat%
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ADVANTAGES
WET WELDING
Spd of t'opration is 2r&'i)'%
E(uipmnts ar
2r& minimum% T' 1pnditur is
2r& minimum%
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DR/ WELDING
Good (ualit&
Good surfa# 6nis' It !ill not a*#td "& o#an#urrnts and marin animals
Wldr saft&
I
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DISADVANTAGES
WET WELDING Poor 2isi"ilit& Wld is (un#'d is 2r& fast in undr
!atr% It d#rass impa#t strn)t' and
du#tilit&
0&dro)n Em"rittlmnt Amount of 2olta) 2r& limitd
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DR/ WELDING
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DR/ WELDING Lar) (uantitis of #ompl1 (uipmnt Cost is 2r& 'i)' 0i)' 2olta) ar r(uird
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CONCLUSION
Su3#int litraturis not a2aila"l
It as ld to t'
d2lopmnt ofaltrnati2 !ldin)mt'ods li$fri#tion
!ldin)+1plosi2!ldin)%
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Any
questions
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