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Line-OX SF Composite Alumina & Glass Linings
In order to bridge the gap between the abrasion resistant and flow enhancing liners the patented Line-OX SF composite alumina ceramic tiles were developed to combine the wear resistant properties of alumina with a low friction characteristics of glass. The wear properties of densely sintered alumina ceramics (typically in excess of 90% alumina) are well known and this product has established an excellent reputation in a wide range of applications where its resistance to sliding abrasion is superior to 500 BHN plates by as much as a factor of eight.
The low friction characteristics of glass have been widely used to overcome blockages, ratholing, arching and plugging in chutes bins and silos.
In standard alumina ceramic lining applications the surface friction may be too high to permit material to flow over the surface. Material either builds up and blocks or merely acts as a dead box with material flowing over itself. In the Line-OX SF composite tile a sacrificial glass coating is fused to the surface of the ceramic tile at a high temperatures. At these temperatures the glass phase reacts with the alumina substrate to form a durable chemical bond. This surface, although very hard itself, acts as a flow initiator allowing material for flow and as this sacrificial layer wears the ceramic substrate then has the opportunity to polish to a smooth finish in the immediate wear zone.
Typical test results n Line-OX SF liners are shown in the table:
| Liner | Coal | Char | Concentrate | Iron Ore |
| Ceramic | 18° | 16° | 11° | 23° |
| Glass FLOWTILE | 25° | 27° | 16° | 32° |
| Line-OX SF | 25° | 27° | 16° | 32° |
| Polished Stainless Steel | 18° | 16° | 16° | 28° |
| Carbon Steel (400BHN) | 19° | 23° | 11° | 23° |
Note: DATA IS FOR SLOT HOPPERS MEASURED FROM VERTICAL
Successful Applications
- Duff Coal
- Boiler Ash
- Concentrate
- Slag
- Fine Iron Ore
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