Vertical welding operation skills

1. The vertical welding operations than flat welding operation to be more difficult, under gravity, welding droplet condensation and coagulation bath consisting of a metal to drip down, which makes difficult weld, weld is not as flat welding beautiful.

2. The movement of the welding fortune very important:

Example: thickness 5mm, without groove butt welding stand. This welding method using smaller diameter electrodes, to use the 3.2mm, current 80-100A (10-15% smaller than the flat welding), so that the pool is small, fast condensation can avoid condensation of liquid metal drip; with short welding arc, arc length is usually no more than wire diameter, and welding and welding pieces constitute 60º-80º angle, so relying on Arc blowing force generating upward thrust on boosting the bath of molten iron, applied electrodes to condense transition metal bath;

Electrode for Vy motion (ie arc welding in the groove on one side, to be transported to the other side and then condensation), the transport bar mode can be "double zigzag", "successive sawtooth" etc., swing upward, until the completion of the entire road seam welding.

3. Note:

1) should be harmony between Vx, Vy, Vz three sports divisions, and down to avoid the uneven weld penetration.

2) on both sides of the condensation width should differences, to avoid incomplete penetration, insisted uniform weld penetration.

3) Repeat ending interrupter method.

4) When the molten iron to make immediately before putting the Vx campaign, can not stay or slows down.

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