Electric welding welding current comparison table

Welding current of the welding machine can be adjusted to 50 to 600A, the specific adjustment of how much current according to the specifications of the welding rod, welding method and other reasonable arrangements.

One, the electrode specifications

The electrode specifications are different, the need to use the welding current is not the same. For example, the welding machine welding 2.5 welding rod, its current is usually adjusted to 115 to 130A or so. Welding 3.2 welding rod, the current can be adjusted to 145 to 175A or so. Welding 4.0 welding rod, the welding machine current can be adjusted to 180 to 210A and so on. Generally the larger the electrode specifications, the larger the welding current.

Second, the welding method

Different welding methods, the welding current required will be different. In general, the use of flat welding method of welding rods, welding current to be adjusted to some of the welding machine, vertical welding, horizontal welding, upward welding requires the use of welding current will be relatively small. For example, with the back welding method of welding rods, the welding machine current can be adjusted to 140 A. If you use the vertical or horizontal welding method of welding rods, the welding machine current can be adjusted to 140 to 160 A. With the flat welding method of welding rods, the welding machine current can be adjusted to 180 A or more.

Judgment of the welding machine current control is normal method:

1, see the welding effect: the most intuitive way to determine the control of the welding machine current circuit is to observe the effect of welding. When the welder current circuit control is normal, the welding depth of fusion, the quality of the weld, welding integrity and so on meet the requirements. If the weld appears obvious cone, cracks, inclusions and other defects, indicating that the welder current circuit control may have problems.

2, check the circuit components: If the welding effect is not ideal, you need to check the welder current circuit components are normal. Mainly check the welding power supply, switch, current regulator, inductors, capacitors and other components are burned, aging, poor contact and other issues. If problems are found, timely replacement or repair.