Electric welding how to weld round pipe?

Specific welding method is:

1, adjust the current, for small diameter pipe, generally require one-sided welding double-sided molding. To adjust the current according to the wall thickness of the pipe and their own welding techniques.

2, try to weld more live, so that the progress of fast, good quality. Welding fixed mouth operation is technically difficult.

3, choose the right welding rod.

4, counter gap for the diameter of a welding rod.

5, welding from the bottom, with a short arc welding, pay attention to the arc to hold the iron, to ensure that the bottom of the inside molding, constantly adjusting the angle of the electrode, watching the molten pool, the molten pool overheating should be decisive arc extinguishing.

6, small diameter pipe welds are generally welded twice.

Electric welding is divided into two kinds of movable mouth and fixed mouth, the latter is divided into horizontal fixed, vertical fixed, tilted fixed. Welding live mouth can always be in the position of 12 points for welding, equal to welding flat seam. Vertical fixation is the same as horizontal welding. Horizontal fixation is called all-position welding, and is done in two half turns from 6 to 12 o'clock. Inclined fixing is pretty much the same as horizontal fixing, the difference being that the electrode needs to be pulled diagonally.

As for the angle of the welding rod is only theoretically that, in fact, there is which for the beginning of learning is to use a ruler to measure the angle, just about on the line, the angle is not easy to weld off. Engage in welding for a process parameters can be adjusted is the current value, the rest of all in the hand.

Note: First, try to grind the interface into a coherent line, that is, basically all the contact together, there is no gap too large place, in addition is the arc pointing to the side of the pipe, do not point to the joints of the single-sided, so it is not easy to burn through.