What negative pressure can refractory mortar withstand without falling off?
Thread Content
What negative pressure can refractory mortar withstand without falling off? What is the general structure of high-temperature furnace equipment? They are all three-layered: steel plates on the outside, an insulation layer in the middle, and refractory mud or refractory bricks on the innermost side? Could the refractory mortar fall off when the negative pressure in the furnace chamber is too high? What is the limit for negative pressure, and what about the limit for positive pressure?
Refractory materials themselves do not have the capacity to withstand external pressure; it is the furnace shell that is responsible for withstanding such pressure. If the furnace contains molten metal liquid, then the furnace shell is also under pressure. For reference.