文档介绍：WeldingGrooves'FormsandTypesGXX-XXXXXScopeThisdocumentdefinesthecodeofweldinggroove,chamferinganddifferentkindsofgroovesithbacking；50°±510Vt<25—Backingrequired(A,B,AH,D,DH)
GOVSGOVN50。+010"UsedwhenAOVS7<t<25(A,B,AH,D,DH)-autowelding(SeeTable5)Table5Groovetypesforsemi-autoweldingProcessCodeSketch40。±5。
failed;One-sideautomaticweldingwithbackingCOVSCOVN4+18
COVSCOVN
40。±5。
•4J
2
」
t
\/1
1
4U+16
Applicable
plate
5<t<10025<t<140NoteOne-sidesemi-autoweldingbackingwith—UsedforthejointbetweencaststeelandAEsteel;,B,D,One-sideweldingsemi-autowithbacking;—Whent<35mmusedexceptEsteel。
One-side
semi-auto
welding
CO1/2VSCO1/2VNCO1/2VSCO1/2VN61+4-5<t<6025<t<140One-sidesemi-autoweldingwithbacking;UsedforthejointbetweencaststeelandA,B,D,
Esteel;Backingrequired；—WhentusedexceptEsteel。
<35mm
400±5ProcessBoth-side
auto
welding
SOVSSOVNSOVSSOVNCodeCICVSCVNC1/2VSC1/2VN—+84-1
+o1030°
2
0
」
——
1
8+04
5<t<6565Vt<100Table5(Continued)
SketchApplicable
plate
40°±5
2
\/t
■
—
1
I
L0〜3
10Vt<38
2K
t
J
—1
一。+540—'5<t<60Backingrequired；Semi-autoweldingone-passfirstly,thenauto-welding;(CO2+SAWBackingrequired；Semi-autoweldingone-passfirstly,thenauto-welding;(CO2+SAWNote
—Nobackgouging;—UsedforA,B,AH32AH36steel。
Backgauging.
—Backgauging.
—WhenweldingSO1/2Vandtherootspaceisnotenough,repairingrequired.
CX2SCX2N（管子）t45。+5°1stW/D2ndW/D
5<t<19
—Nogaugingfilletwelding.
back
when
—
Back
gauging;
-(
)is
abletobe
used
for
pipes;
—CX2S
(or
19<t<100
N),S(orN)
refer
to
1st
W/D
side;
—1st
W/D
refer
to
the
side
oft/3
o
Process
Code
Sketch
Applicableplate
Note
Table5(Continued)
BackCK2SCK2N1stW/D2ndW/D19<t<10045
+o15SVSSVN5<t<100gauging;
—CX2SorN),
S(or
N)
refer
to
1st
W/D
side;
—1st
W/D
refer
to
the
side
oft/3
o
—Backgauging
—(CO2+SAWBoth-side
semi-auto
welding
SX2SSX2N50°±5。
.50±52ndW/D(管子)1stW/D19<t<50
Back
gauging