News

2.2.2 Effects of Slag Layer

The slag layer’s viscosity significantly impacts electrodynamic forces. If too viscous, it can disrupt electrode immersion and increase breakage risks.

2.2.3 Other Mechanical Forces

Electrodes can break due to external impacts during operations, especially when equipment is misaligned or obstructed.

Preventive Measures

3.1 Protection Before Installation

Ensure careful handling to avoid collisions, and verify that lifting equipment is secure.

3.2 Correct Installation

Clean electrode joints before installation, avoiding any gaps. Consider using spring-dampened lifting devices for added protection.

3.3 Operational Procedures

3.3.1 Handling Slag Shells

Break slag shells with high-pressure argon to promote even distribution of slag.

3.3.2 Stable Arc Ignition

Start with low currents for smooth arc ignition before increasing to normal levels.

3.3.3 Controlling Argon Injection

Monitor argon flow to ensure effective mixing without excessive impact on electrodes.

3.3.4 Minimizing External Forces

Avoid introducing oversized materials and regularly check for obstructions.

The main reason for graphite electrode breakage during production in the ladle refining furnace is the influence of various internal and external mechanical forces. By ensuring proper protection before electrode installation, correct installation, optimizing refining operations—especially stabilizing arcing and slagging conditions at the early stages of refining—ensuring slag condition and bottom-blown argon control meet refining requirements, and timely maintenance of equipment, electrode breakage accidents can be prevented.