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4.4
Contact equipment for Submerged arc welding
4.4.1
For single wire 1.6 -- 4.0 mm. Light duty (D20)
Use automatic welding machine A2 TF (UP) where
the following are included:
S
Wire feed unit (
1
),
S
Connector D20 (
2
)
S
Contact tip (
3
) (M12 thread).
Tighten the contact tip (
3
) with a key in order to
ensure that a good contact is achieved.
4.4.2
For twin wires 2 x 1.2 -- 2.0 mm, Light Twin (D35)
Use automatic welding machine A2 TF (UP, Twin)
where the following are included:
S
Wire feed unit (
1
),
S
Connector Twin D35 (
2
)
S
Contact tip (
3
) (M6 thread).
S
Fine--Wire feed unit (
5
)
S
Guide tubes (
4, 6
).
Tighten the contact tip (
3
) with a key in order to
ensure that a good contact is achieved.
Adjustment of the wires for Twin--arc welding:
S
Position the wires in the joint so as to achieve optimal weld quality by rotating the
connector. The two wires can be rotated so that they are positioned one after the
other along the line of the joint, or in any position up to 90
°
across the joint, i.e.
one wire on each side of the joint.
GB
