Category: Unshaped Refractory

Unshaped refractory materials are defined as mixtures consisting of aggregates, additives, and binders, prepared for direct use in the state of delivery or after adding suited liquids. In contrast to refractory bricks, they are without specific shape and are placed in larger sections behind molds and templates, forming a monolithic lining. Gunning installations without a mold requirement are increasing due to ease of application and higher installation speed.

The multitude of refractory aggregates and the variety of bonding agents enables endless combinations of unshaped refractory products. The installation type like casting, gunning, ramming needs also be considered during the development process. The service life of unshaped products depends largely on the correct choice and installation on site. Contrary to refractory bricks, unshaped materials achieve their final ceramic properties with the application’s heat treatment. Therefore, the developer of such materials needs to know about the future operating conditions for selecting the right combination of raw materials.

Sicheng offers the whole range of raw materials required for the development of high alumina unshaped refractories.