Industry Knowledge of Aluminum-Magnesium Refractory Castable

Aluminum-magnesium refractory castable is a type of refractory material that is widely used in modern industry. The material, which is made of aluminum-magnesium aggregate and powder, is a high-performance castable that is suitable for use in a variety of high-temperature applications.

Classification:
The aluminum-magnesium refractory castable is divided into several grades based on its performance. The most commonly used grades for industrial applications are the 70 series and the 80 series. The 70 series has a maximum use temperature of 1550℃, while the 80 series can withstand temperatures up to 1650℃.

Technical parameters:
The technical parameters of the aluminum-magnesium refractory castable include bulk density, porosity, compressive strength, and thermal shock resistance. The bulk density of the material is generally between 2.5-2.8 g/cm³, with a porosity of less than 18%. The compressive strength is greater than 90 MPa, and the thermal shock resistance index is above 3 cycles.

Production process:
The production process of aluminum-magnesium refractory castables involves several steps. First, the raw materials are prepared and mixed in the correct proportions. Next, a binding material is added to the mixture to create a slurry. The slurry is then poured or sprayed into the mold, where it is compacted and shaped. Finally, the material is cured at a high temperature to achieve its desired properties.

In conclusion, aluminum-magnesium refractory castables are an important material used in industrial applications where high temperatures are present. The material's excellent performance, coupled with its classification grades, technical parameters, and production process, make it an essential part of many industries. As technology continues to advance, it is likely that aluminum-magnesium refractory castables will become even more versatile and useful.