Refractory
What Is Zircon Ramming Material?
What Is Zircon Ramming Material?
A zircon ramming material is a refractory composition which can be pressed, rammed, gunned, cast or otherwise emplaced in a furnace or other pyro-processing unit.azs zircon ramming material It can be shaped to form the bottom of a kiln, or it may be a lining for the top of the kiln and the melting zone, or it can be used as a transition layer between silica brick and high alumina refractory products. The composition is made of coarse refractory grog, such as fused silica, pyrophyllite or tabular alumina aggregate and zircon grain. The zircon is bonded to the alumina grain by the action of alkaline earth oxide. A small amount of a chemical binder is also included in the mixture to help hold the refractory together before firing. The composition is fired at ordinary glass and slag furnace operating temperatures to provide a dense mass, which has high resistance to erosion, thermal shock and penetration by molten metal or slag.
The composition can be shaped into blocks, slabs or other forms for use in the glass industry.azs zircon ramming material It is a dry neutral refractory and is available in either a ready-mixed form which requires no further mixing or a site-mixing type which can be mixed with water before use.
It is designed to be a low-cost alternative to traditional refractory materials and can be used in the melting zone, kiln wall or cooling zone of a glass kiln.azs zircon ramming material It can also be used in the sintering zones of glass fiber kilns and rock wool kilns as well as in the thermal patching and lining of glass fiber kilns.
There are many different types of ramming material for a glass furnace, each designed for specific conditions. The refractory materials for the melting zone must be resistant to corrosion, and they should not cause any defects in the molten glass (such as stones, streaks or bubbles) or color it. They must be easy to install and have a low thermal expansion coefficient.
The ramming mass is important because it forms the layer of refractory that prevents the molten glass from being penetrated by metal and slag during the forming process in the furnace. It is essential to the production of high quality glass. The most commonly used ramming masses are AZS, DM and ZC101 ramming materials.
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