ZO-55 description:
Typical applications
Butt and fillet welding of mild steel & 540N/㎟ class high tensile strength steel. Construction Equipment, Bridges and Building
Characteristics on Usage:
Excellent Mechanical Properties are obtained under High heat Input (40kj/cm) and interpass temp. (350℃) for 490N/㎟.class steel welding
Increasing Productivity due to higher Heat Input and Interpass Temperature.
It is suitable to use shielding gas of 20 to 25ℓ/min.
Distance between a base plate and contact tip must be kept at around 6 ~15mm with current less than 250A, and around 15 ~ 25mm with current over than 250A.
Wind screen must be set at the welding in the place with strong wind