Ronch Ronch Weld 160ARC DV, Руководство пользователя

Страница: 23 / 36

23
4
Weld sits on top, lack
of fusion
Insufficient heat input
Increase the amperage or choose a
larger electrode
Work piece dirty, contaminated
or moisture
Remove moisture and materials like
paint, grease, oil, and dirt, including
mill scale from base metal
Poor welding technique
Use the correct welding technique or
seek assistance for the correct
technique
5 Lack of penetration
Insufficient heat input
Increase the amperage or choose a
larger electrode
Poor welding technique
Use the correct welding technique or
seek assistance for the correct
technique
Poor joint preparation
Check the joint design and fit up, make
sure the material is not too thick. Seek
assistance for the correct joint design
and fit up
6
Excessive penetration
- burn through
Excessive heat input
Reduce the amperage or use a smaller
electrode
Incorrect travel speed Try increasing the weld travel speed
7
Uneven weld
appearance
Unsteady hand, wavering hand
Use two hands where possible to
steady up, practise your technique
8
Distortion −
movement of base
metal during welding
Excessive heat input
Reduce the amperage or use a smaller
electrode
Poor welding technique
Use the correct welding technique or
seek assistance for the correct
technique
Poor joint preparation and or
joint design
Check the joint design and fit up, make
sure the material is not too thick. Seek
assistance for the correct joint design
and fit up
9
Electrode welds with
different or unusual
arc characteristic
Incorrect polarity
Change the polarity, check the
electrode manufacturer for correct
polarity