Why smart engineers look at total cost of ownership, not just unit price, when selecting monolithic refractory materials

The service life of high-strength castables is usually 6 months, and that of alkali-resistant castables is 12 months. If the castable is found to be agglomerated, it should be discarded and no longer used normally. It can be downgraded, or the proportions can be modified appropriately, or the aggregate can be stored and the powder discarded.

Henan Xintai Refractory Materials Co., Ltd. manufactures monolithic refractory materials that are constructed using ramming (manual or mechanical) and hardened by heating above room temperature. These materials are composed of graded refractory aggregate, powder, binder, and admixtures, mixed with water or other liquids. Ramming materials include high-alumina, clay, magnesia, dolomite, and zirconium.

There are many factors that affect the rheological properties of castable materials, such as the limit size, shape, distribution and water absorption rate of particles; the properties and dosage of binders and dispersants, the amount of water added, and the mixing and stirring process, etc. However, the most significant influences are the bonding system, particle size distribution and the properties and dosage of dispersants.

Admixtures are substances that, when added in appropriate amounts to the batching of refractory materials, can improve the physical properties, formability or construction performance, and service performance of refractory materials. They are also known as additives.

Calcium aluminate cement (CAC) is widely used in refractory castables due to its early strength characteristics, which can provide high demolding strength for castables, as well as excellent erosion resistance and thermal shock resistance.

Refractory insulation raw material is the material necessary for the production of refractory insulation products. It is the basis for the production of refractory materials.

Al₂O₃-MgO castables are widely used in ladle linings, but their poor thermal shock and slag resistance limits the improvement of ladle lining life. Scalar graphite has good thermal shock resistance and slag resistance, but it does not wet with water, which leads to the deterioration of the performance of graphite-containing castables.

When it comes to refractory bricks, understanding the concept of mesh and its conversion to micrometers is crucial for ensuring the quality and performance of the products. In this article, we will delve into the definition of mesh, its significance in the refractory industry, and provide a detailed explanation of how to convert mesh to micrometers.