Basic technique of soldering iron with welding machine

Technique of welding current adjustment with welding machine

For small diameter welding rods, you should adjust the small welding current intensity to avoid melting of welding materials because of the large heat.

Do not stretch the welding span too long because it will puncture the welding material

Manipulating iron, thin steel welding with welding machine

SHOULD be welded into short beats, not too long should cause puncture in the material. When welding thin materials, the puncturing speed should be slower than when welding thick materials. That is, welding should be slow enough only to avoid high temperatures causing solder flow.

Basic technique of soldering iron and steel by welding machine

Principles of iron and steel welding:

• Welding iron and steel with a stick welding machine does not require high cleaning position as other methods, but not so that you skip this step.
• Need to clean dirt with specialized surface cleaning tools or steel brushes. The cool clamping area should also be clean to ensure good contact area, which helps to keep the arc stable during welding steel.
• Posture when welding must ensure that you can observe the welding area most clearly. Workers should choose a good view, avoid welding hands to cover eyes and also avoid inhaling toxic welding fumes.

Basic current setting technique in welding

• Depending on the type of electrode used, set a direct, reciprocating, or alternating current for the device.
• Make sure the welding machine is set up the parameters correctly before welding.
• The size of the welding current depends on the diameter of the welding rod and the type of welding electrode you use.
• You can adjust the welding current according to the following calculation: 1 Amp is equivalent to 0.0254 mm diameter of the welding rod

Note: For beginners of iron and steel welding, you can keep the welding current to a minimum, then slowly increase 5 - 10 Amp and consider the welding ability accordingly.

Adjust arc length

The arc length depends on the type of welding rod as well as the welding position. For basic welding techniques, the length of the arc should not exceed the diameter of the welding rod.

Because, when the arc length is too short, it can make the arc unstable, can turn off the arc, the welding area hardens faster and the ability to create welding scales is quite high.

If the arc is too long, it may cause arc splashes, the precipitation speed is slow and porosity easily affects the weld.

How to adjust the welding rod angle correctly when welding basic steel

For surface welding of welding materials, the angle of the welding rod should be between 5 ° - 15 ° in the direction of motion. When welding iron and steel with an arc welding machine, the position of the welding rod angle is 0 ° - 15 ° in the opposite direction of the welding direction of the welding rod.

How to operate the welding rod exactly?

The welding position must ensure that the welding area is clearly visible

For beginners learning how to weld iron should pay attention to the movement along the axis of the weld, maintain and adjust the length of the arc accordingly. Horizontal movement maintains the width of the weld.

There are different types of motion: horizontal motion, continuous motion and intermittent motion depending on the thickness of the solder.

When welding thin steel, there is no need for horizontal movement of the welding rod, because the arc width is sufficient to fill the welding groove.