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Parameters of piping back sealing welding for mild steel(DCEP)

Piping 

diameter

Φ/mm

Tungsten 

electrode

 diameter/mm

Gas nozzle

 diameter/mm

Welding 

wire diameter/mm

 Welding current/A

Welding 

current/A

Arc 

voltage/V

Argon flow 

1

rate/L•min-

Welding 

1

rate/cm•min-

38

42
60
76

108

133
159
219

273

325

2.0
2.0

2.0
2.5
2.5

2.5
2.5
2.5

2.5

2.5

8

8
8

8~10
8~10

8~10
8~10
8~10

8~10

8~10

2

2
2

2.5
2.5

2.5

2.5.

2.5

2.5

2.5

75~90
75~95

75~100
80~105

90~110

90~115
95~120

100~ 120

110~ 125

120~ 140

11~13
11~13

11~13

14~16
14~16

14~16
14~16
14~16

14~16

14~16

6~8
6~8

7~9

8~10

9~11

10~12

11~13

12~14

12~14

12~14

4~5

4~5
4~5
4~5
5~6

5~6
5~6
5~6

5~6

5~6

Notice: the above parameters originate from <<Welding Dictionary>> P167,

             Volume 1 of Edition 2.

TIG of stainless steel(single run welding)

Workpiece 

thickness

/mm

Joint form

tungsten 

electrode 

diameter

/mm

welding 

wire 

diameter

/mm

Argon gas 

flow rate/

1

L•min-

welding 

current 

(DCEP)

Welding 

speed/

cm•min-1

0.8
1.0
1.5
1.5
2.4
2.4
3.2
3.2
4.8
4.8
6.0

Butt joint
Butt joint
Butt joint

Corner joint

Butt joint

Corner joint

Butt joint

Corner joint

Butt joint

Corner joint

Butt joint

1.0
1.6
1.6
1.6
1.6
1.6
1.6
1.6
2.4
3.2
4.0

1.6
1.6
1.6
1.6
2.4
2.4
2.4
2.4
3.2
3.2
4.0

5
5
7
7
7
7
7
7
8
9

10-12

20~50
50~80

65~105
75~125
85~125
95~135

100~135

115~145

150~225
175~250
220~300

66
56
30
25
30
25
30
25
25
20
25

Notice: the above parameters originate from <<Welding Dictionary>> P150,Volume 1 of Edition 2.

4.4 TIG Parameters Matching

The corresponding relationship between gas nozzle 

diameter and electrode diameter

Gas nozzle diameter/mm

6.4

8

9.5

11.1

Electrode diameter/mm

0.5
1.0

1.6 or 2.4

3.2

Notice: the above parameters originate from <<Welding Dictionary>> P142,Volume 1 of Edition 2. 

04

Gas nozzle and the shield gas flow rate

Welding 

current range/A

DC positive connection

AC

Gas nozzle 

diameter/mm

Gas flow 

1

rate/L•min-

Gas nozzle 

diameter/mm

Gas flow 

1

rate/L•min-

10~100

101~150
151~200
201~300

4~9.5
4~9.5

6~13
8~13

4~5
4~7
6~8
8~9

8~9.5

9.5~11

11~13

13~16

6~8

7~10
7~10
8~15

Notice: the above parameters originate from <<Welding Dictionary>> P149,Volume 1 of Edition 2.

Protect effect 

best 

better 

good 

bad 

worst

Welding area color bright argent  orange-yellow blue-purple caesious white powder 

of titanium oxid

The relation of welding area color & protect effect of Ti-alloy

Tungsten 

Electrode

 Diameter/mm

Sharpened of 

the Electrode 

Diameter/mm

Angle of Cone(º)

Background 

Current/a

1.0
1.0
1.6
1.6
2.4
2.4
3.2
4.0

0.125

0.25

0.5
0.8
0.8
1.1
1.1
1.5

12
20
25
30
35
45
60
90

2~15
5~30
8~50

10~70
12~90

15~150
20~200
20~300

Tungsten Electrode

DC PULSE

 

SERIES

 

EQUIPMENT

DC PULSE

 

SERIES

 

EQUIPMENT

Welding technique

Welding technique

Summary of Contents for Tokyo2300

Page 1: ...OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS Tokyo2300 Welding Machine Register now and benefit Jetzt Registrieren und Profitieren www smart iwm com...

Page 2: ...ork day by day to optimize this vision Number 1 in Technology Number 1 in the prices Number 1 in Service Number 1 in the environmental compatibility More than 30 000 enthusiastic customers trust our e...

Page 3: ...1 Do not touch live electrical parts 2 Wear dry hole free insulating gloves and body protection 3 Insulate yourself from work and ground using dry insulating mats or covers 4 Disconnect input power or...

Page 4: ...ects can cause sparks overheating or fire 1 Protect yourself and others from flying sparks and hot metal 2 Do not weld where flying sparks can strike flammable material 3 Remove all flammables far awa...

Page 5: ...h heart pacemaker should be away from the welding area 1 2 Effects Of Low Frequency Electric and Magnetic Fields 1 3 Symbol Chart Note that only some of these symbols will appear on your model Electri...

Page 6: ...al sensitivity Summary DC PULSE SERIES EQUIPMENT In DC TIG without HFopertation If the tungsten electrode touches the workpiece when welding the current will drop to short circuit current to protect t...

Page 7: ...al requirements for your situation in this regard Due to variations that can occur in manufactured products claimed performance voltages ratings all capacities measurements dimensions and weights quot...

Page 8: ...10 11 Operation DC PULSE SERIES EQUIPMENT 3 1 Layout For The Panel Operation DC PULSE SERIES EQUIPMENT 21 22 20 1 6 2 3 7 4 9 10 11 17 15 5 12 13 14 16 19 18 8 Front Behind...

Page 9: ...should a thermal overload condition be present 4 Power ON Indicator The POWER ON indicator illuminates when the ON OFF switch is in the ON position and the correct mains voltage is present 1 Digital...

Page 10: ...m the Power Source via heavy duty bayonet type terminals It is essential however that the male plug is inserted and turned securely to achieve a sound electrical connection 17 Negative Welding Termina...

Page 11: ...nd Current remains ON until the torch trigger switch is released after it has been depressed Note The maximum crater current available will be limited to the set value of the base current 8 Post Flow...

Page 12: ...tungsten with approximately 1 6mm to 3 2mm sticking out from the gas cup ensuring you have correct sized collet 8 Tighten the back cap 9 Turn the switch to the ON position The power L E D light should...

Page 13: ...r switch shuts off protectively because of failure Don t restart it until until problem is resolved Otherwise the range of problem will be extended TIG Welding Application Shot 4 1 TIG Basic Welding T...

Page 14: ...50 50 80 65 105 75 125 85 125 95 135 100 135 115 145 150 225 175 250 220 300 66 56 30 25 30 25 30 25 25 20 25 Notice the above parameters originate from Welding Dictionary P150 Volume 1 of Edition 2 4...

Page 15: ...weld steel sections without any special preparation For heavier sections and for repair work on castings etc it will be necessary to cut or grind an angle between the pieces being joined to ensure pr...

Page 16: ...s broken Change it Troubleshooting DC PULSE SERIES EQUIPMENT Troubleshooting DC PULSE SERIES EQUIPMENT 6 No no load voltage output MMA If the overheat indicator is on The main circuit is broken The ma...

Page 17: ...act If the display number is not intact please replace the damaged LED If it still doesn t work please maintain or replace the display PCB Observe that whether the min max value on LED accords with th...

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