Riland TIG 315PAC/DC, Руководство пользователя

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19
QUESTIONS TO BE RUN INTO DURING WELDING
Fittings, welding materials, environment factor, supply powers maybe have some impact in welding.
User must try to improve welding environment.
——Welding spot is not prevented from oxidizing .User may check as following:
1. Make sure the valve of argon cylinder is opened and its pressure is enough. argon cylinder must be
filled up to enough pressure again if pressure of cylinder is be low 0.5Mpa .
2. Check if the flow meter is opened and has enough flow .User can choose different flow according
to welding current in order to save gas .But too small flow maybe cause black welding spot because
preventive gas is too short to cover welding spot .We suggest that flow of argon must be kept min
5L/min.
3. Check if torch is in blocked.
4. If gas circuit is not air-tight or gas which is not pure can lower welding quality.
5. If air is flowing powerfully in welding environment, that can lower welding quality.
1. Make sure quality of tungsten electrode is high.
2. Grind end of the tungsten electrode to taper .If tungsten electrode is not grinded, that will be difficult
to strike arc and cause unstable arc.
When power voltage departs from the rated value, it will make the output current not matched with rated
value; when voltage is lower than rated value, the max output may lower than rated value.
It has something with factors as following:
1. Electric wire net voltage has been changed.
2. There is harmful interference from electric wire net or other equipment.
Pulse duty is too high, which lead to over heat of stick.
1. Wrong welding value
2. Pulse duty too low
3. Twice inverter MOSFET broken
1. When the internal components are fault, this light is lit. When the indicator is lit, turn off the power
switch .When the indicator goes out, and turn on the machine again. If the machine is all right, you
can work again.
2. When the indicator is still lit, turn to the professionals or the manufacturer for help.
A. Black welding spot:
B. Arc-striking is difficult and easy to pause:
C. Output current not to rated value:
D. Current is not stabilizing when machine is being operated:
E. Stick is burnt out:
F. When welding aluminum, can not break oxidized film:
G. Abnormal indicator is lit: