MAINTENANCE &TROUBLESHOOTING
28
10
~
100
4
~
9.5
4
~
5
101
~
150
4
~
9.5
4
~
7
151
~
200
6
~
13
6
~
8
201
~
300
8
~
13
8
~
9
tungsten electrode
diameter /mm
sharpened of the
electrode diameter/mm
angle of cone
(
°
)
background current/A
1.0
0.125
12
2
~
15
1.0
0.25
20
5
~
30
1.6
0.5
25
8
~
50
1.6
0.8
30
10
~
70
2.4
0.8
35
12
~
90
2.4
1.1
45
15
~
150
3.2
1.1
60
20
~
200
TIG of stainless steel (single run welding)
Workpiece
thickness
/mm
Joint
form
tungsten
electrode
diameter/mm
welding wire
diameter/mm
Argon gas
flow rate/
L
·
min
-1
welding
current
(DCEP)
Welding
speed/
cm
·
min
-1
0.8
Butt joint
1.0
1.6
5
20
~
50
66
1.0
Butt joint
1.6
1.6
5
50
~
80
56
1.5
Butt joint
1.6
1.6
7
65
~
105
30
1.5
Corner
joint
1.6
1.6
7
75
~
125
25
2.4
Butt joint
1.6
2.4
7
85
~
125
30
2.4
Corner
joint
1.6
2.4
7
95
~
135
25
3.2
Butt joint
1.6
2.4
7
100
~
135
30
3.2
Corner
joint
1.6
2.4
7
115
~
145
25
4.8
Butt joint
2.4
3.2
8
150
~
225
25
4.8
Corner
joint
3.2
3.2
9
175
~
250
20
Notice: the above parameters originate from
《
Welding Dictionary
》
P150, Volume 1 of Edition 2.
Summary of Contents for ArcoMiG LCD 250C
Page 1: ...I ...
Page 3: ...CONTENT III ...
Page 34: ...MAINTENANCE TROUBLESHOOTING 34 5 3 Electrical principle drawing ...