The following points should be noted when striking an arc:

When striking the arc, pay close attention to these key points, as they directly affect welding quality and safety:

Arc striking position: Don't strike the arc randomly on the workpiece. Usually, strike the arc 15-20mm in front of the bevel, lengthen the arc for preheating, and then press back to normal welding. This protects the workpiece surface and avoids weld defects.

Arc length: Immediately after striking the arc, control the arc length within the electrode diameter range, generally 2-4mm. Too long and the arc will easily extinguish; too short and the electrode will stick, potentially causing spatter.

Electrode lifting speed: The movement should be quick, but not too abrupt. Too fast and the arc may become unstable and extinguish; too slow and the electrode will easily stick. Once stuck, quickly shake the electrode left and right to separate it. If this doesn't work, disconnect the power and wait for it to cool before addressing the issue.

Electrode end condition: Before striking the arc, ensure the core is exposed. If the flux coating is uneven or there is a sleeve, clean it thoroughly, otherwise it may cause uneven flux blowing or coating peeling off. Materials and Environment: Extra care must be taken when igniting high-strength steel and stainless steel to avoid surface damage. In low-temperature environments, the arc preheating time can be appropriately extended.

Safety Precautions: A face shield must be worn, and direct eye contact with the arc must be avoided to prevent arc burns.