-
8/9/2019 Underwater Welding By KRP
1/14
UNDERWATER
WELDING
-
8/9/2019 Underwater Welding By KRP
2/14
CONTENTS INTRODUCTION CLASSIFICATIONS
PRINCIPLE ADVANTAGES DISADVANTAGES CONCLUSION
-
8/9/2019 Underwater Welding By KRP
3/14
INTRODUCTION
It is an important toolfor undr!atr
fa"ri#ation !or$s% An& rpair mt'od
!ill r(uir t' us ofundr !atr !ldin)%
Su#' as num"r ofo*s'or stru#turs
in#ludin) oil drillin)ri)s+ pip lins%
-
8/9/2019 Underwater Welding By KRP
4/14
CLASSIFICATIONS
WET WELDING,-anual mtal ar# !ldin).
DR/ WELDING,0&pr "ari# !ldin).
-
8/9/2019 Underwater Welding By KRP
5/14
Wet welding:
It is dir#tl& 1pos to t' !tn2ironmnt%
It is opn air !ldin)%
-ost *#ti2 3#int #onomi#almt'od%
-
8/9/2019 Underwater Welding By KRP
6/14
Dry Welding:
T'is mt'od produ# 'i)' (ualit&
!ldd 4oints%
Gas tun)stn ar# !ldin) us t'is
pro#ss% T' ara undr t' 5oor of t' 'a"itat is
opn to !atr%
T' !ldin) is don in t' dr& "ut at t''&drostati#
prssur of t' sa !atrsurroundin) t' 'a"itat%
-
8/9/2019 Underwater Welding By KRP
7/14
ADVANTAGES
WET WELDING
Spd of t'opration is 2r&'i)'%
E(uipmnts ar
2r& minimum% T' 1pnditur is
2r& minimum%
-
8/9/2019 Underwater Welding By KRP
8/14
DR/ WELDING
Good (ualit&
Good surfa# 6nis' It !ill not a*#td "& o#an#urrnts and
marin animals
Wldr saft&
I
-
8/9/2019 Underwater Welding By KRP
9/14
DISADVANTAGES
WET WELDING Poor 2isi"ilit& Wld is (un#'d
is 2r& fast in undr
!atr% It d#rass impa#t strn)t' and
du#tilit&
0&dro)n Em"rittlmnt Amount of 2olta) 2r&
limitd
-
8/9/2019 Underwater Welding By KRP
10/14
DR/ WELDING
-
8/9/2019 Underwater Welding By KRP
11/14
DR/ WELDING Lar) (uantitis of #ompl1 (uipmnt
Cost is 2r& 'i)' 0i)' 2olta) ar r(uird
-
8/9/2019 Underwater Welding By KRP
12/14
CONCLUSION
Su3#int litraturis not a2aila"l
It as ld to t'
d2lopmnt ofaltrnati2 !ldin)mt'ods li$fri#tion
!ldin)+1plosi2!ldin)%
-
8/9/2019 Underwater Welding By KRP
13/14
Any
questions
-
8/9/2019 Underwater Welding By KRP
14/14
