Steel fiber castable definition: Steel fiber reinforced refractory castable refers to a refractory material that increases its strength by adding steel fibers to unshaped refractory aggregates. Similarly, adding steel fibers to refractory plastic is called fiber-reinforced refractory plastic.
Types and applications of steel fibers: Commonly used fibers include ordinary steel fibers, heat-resistant (stainless) steel fibers, carbon fibers, alumina fibers, aluminum silicate fibers and organic fibers. From the perspective of reinforcement and fire protection effects, heat-resistant steel fibers and alumina fibers are now commonly used to make high-strength refractory materials. Ordinary steel fiber has poor fire protection effect, and carbon fiber is more expensive, so it is less used. Organic fibers are often used as explosion-proof agents for dense, high-strength refractory castables and have certain applications.
Characteristics of steel fiber castables: The types of steel fiber reinforced refractory castables can be named high-aluminum steel fiber high-strength castables or corundum steel fiber-reinforced refractory castables according to the materials of aggregates and powders. These materials have high strength, good toughness, high resistance to thermal shock and good resistance to spalling.
Uses of steel fiber castables: Steel fiber castables are widely used in key parts of kilns and thermal equipment such as heat treatment furnaces, heating furnaces, soaking furnaces, tundish slag weirs, external refining and catalytic cracking devices, and are used in Good results have been achieved in terms of technical and economic benefits.
Summary: Adding heat-resistant steel fibers to refractory castables is called steel fiber reinforced refractory castables. It improves the strength, toughness, thermal shock resistance, etc. of the castable, and is mainly used in kilns and equipment such as heating furnaces, heat treatment furnaces, and soaking furnaces.
