SIL-RAM® 161 is a normal quartz-based material, and the binder B₂O₃ (0.6%, 0.8%, 1.0%, 1.2%, 1.5% etc.) can be selected according to the tapping temperature and other melting parameters;
SIL-RAM® 162/SIL-RAM® 163/SIL-RAM® 167 are acid lining material containing fused quartz. They have excellent volume stability and anti-erosion ability. And can be applied as the entire lining or used with normal quartz materials. Fused quartz material can improve excessive erosion of the lower lining part, and also can reduce the crack & peel off risks of the upper part.
SIL-RAM® 165CR is an acid lining material contains both fused quartz and chrome oxide. It has excellent volume stability, and chrome oxide improves the anti-erosion ability.
SIL-RAM® 169CR is an acid lining material added with chromium oxide. The addition of chromium oxide improves the corrosion resistance of the material. It is usually used in the coreless induction furnace melting iron at high temperature or carbon steel.
1. STEEL-RAM® neutral ramming materialcorundum spinel based on:
– Neutral material, low crack propensity;
– The hot surface forms a dense sintered layer of high-strength aluminum-magnesium spinel at high temperature;
– The sintered layer can effectively prevent the penetration of high temperature metals, manganese oxide and iron oxide;
– The unique design of the product allows the backing to maintain a good loose layer and improve the safety of the whole lining.
– The main component of the STEEL-RAM® series is alumina, added with a certain proportion of magnesium oxide and then reacts at high temperatures to form magnesium-aluminum spinel which offers excellent volume stability and high resistance to erosion.
2. STEEL-RAM® corundum spinel neutral ramming material contains chrome oxide:
– This series is based on fused corundum, added with chromium oxide, the fused corundum, magnesia and chrome oxide, forms high corrosion resistance composite spinel, generates a dense sintered layer under high temperature, and having excellent resistance to molten steel erosion while maintaining a good loose layer on the backing which improves the safety of the lining.
3. MAG-RAM® magnesium oxide based ramming material:
– Magnesium oxide based materials have excellent resistance to alkaline slag erosion
– MAG-RAM® series are mainly composed of magnesium oxide, and a certain proportion of alumina is added in order to form magnesium-aluminum spinel under high temperature.
This series of materials not only maintains the high corrosion resistance, but also it can reduce the cracking and spalling risk of the lining compared with ordinary magnesium oxide materials.
