Cracking problems of induction furnace ramming material

1. Material Selection

While material quality is crucial, the method of use is equally important. Material is only one factor affecting furnace life and cracking.

2. Furnace Preparation Process

Excessive preparation can lead to loose furnace lining material, poor bonding, and low density. Even with proper furnace drying, the furnace life will be short.

3. Furnace Drying Process

Excessive drying can also cause the rammer material in the induction furnace to heat up too quickly, leading to uneven heating and cracking.

Therefore, when using ramming material in induction furnaces, it is essential to strictly follow the standard furnace preparation and drying instructions. This will prevent cracking and extend the furnace life.

Silica Ramming Mass

More details about ramming mass

What is a ramming mass?

Ramming mass is a type of unshaped refractory material used to line the inner walls of induction furnaces, ladles, and other high-temperature processing units. It is usually made from crushed quartz (silica), magnesite, or alumina, depending on the intended use and furnace type.

What is the process of ramming?

Ramming is the process of densely packing loose, dry refractory grains into the furnace lining, using either hand tools or powered equipment, to form a firm and even layer.

What is another name for silica ramming mass?

Acidic Ramming Mass

Silica Ramming Mass, also known as Acidic Ramming Mass, plays a crucial role in induction furnaces during the melting of steel. This substance is used to line induction furnaces. Silica ramming mass has very important quality of withstanding and easily absorbing thermal shocks.

How many types of ramming mass are there?

Based on material composition, ramming masses can be alumina, silica, magnesia, dolomite, zircon, or silicon carbide-carbon.

What is the application of ramming mass?

The application process involves placing a cylindrical steel former within the furnace with equally spaced gaps on all sides. Then the ramming mass is filled into the gaps between the furnace wall and the steel former. This ramming mass is compacted with an electro vibrator.