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Causes of damage to ladle purging plug
Source: | Author:Changxing | Publish time: 293 days ago | 252 Views | Share:
Causes of damage to ladle purging plug
1. Thermal stress.
The refractory material of the ladle purging plug working surface is directly in contact with the high-temperature molten steel, and is also subjected to the continuous blowing of the cold air flow, which generates a large temperature gradient, resulting in a high concentration of stress.

2. Scour, and wear.
The blown gas gives a certain reverse impact force to the refractory material of the ladle purging plug working surface and its surrounding area.

3. Chemical erosion and steel clamping.
The material of the purging plug reacts with the molten steel penetrating into the slit and the slag that has entered the working layer, which changes the physical and chemical properties of the working layer of purging plug and increases the tendency of peeling.

4.Oxygen cleaning.

In the actual application process, thermal stress is one of the most important reasons for the damage of purging plug.