kerui refractory

Silica insulation brick, also known as silica refractory brick or silica fire brick, is a lightweight refractory material renowned for its excellent thermal insulation properties and high-temperature resistance. Composed primarily of silica (SiO2) and other additives, such as alumina (Al2O3) and various bonding agents, silica insulation brick is engineered to withstand temperatures ranging from 1400°C to 1700°C (2552°F to 3092°F) while offering superior insulation efficiency. Key Characteristics of Silica Insulation Brick Superior Thermal Insulation Silica insulation brick exhibits low thermal conductivity, effectively minimizing heat transfer and reducing energy consumption in buildings and industrial processes. Its exceptional insulation properties help maintain stable indoor temperatures, reducing reliance on heating and cooling systems. High Temperature Resistance With a maximum service temperature of 1400°C to 1700°C (2552°F to 3092°F), silica insulation brick demonstrates excelle...

High alumina cement is composed primarily of calcium aluminates, with alumina content typically ranging from 40% to 80%. Unlike conventional Portland cement, which primarily contains calcium silicates, high alumina cement relies on the hydration of calcium aluminate phases to develop strength and binding properties. The main phases present in high alumina cement include monocalcium aluminate (CA), dicalcium aluminate (CA2), and tricalcium aluminate (CA3), along with various minor phases. Key Properties of High Alumina Cement High Early Strength: High alumina cement exhibits rapid setting and early strength development, allowing for expedited construction schedules and quicker turnaround times in repair and maintenance projects. High Temperature Resistance: High alumina cement can withstand elevated temperatures, making it suitable for applications in refractory linings, foundry molds, and high-temperature industrial processes. Chemical Resistance: High alumina cement demonstrates res...

Corundum bricks are renowned for their exceptional heat resistance, chemical stability, and durability, making them a preferred choice in various industrial applications. Whether you are involved in steelmaking, glass manufacturing, or high-temperature furnaces, finding high-quality corundum bricks is vital to ensure optimal performance and longevity. In this article, we will explore the characteristics of high-quality corundum bricks and provide information on where to find them for purchase. Material Composition and Purity High-quality corundum bricks are composed primarily of corundum, an aluminum oxide mineral known for its excellent refractory properties. These bricks are manufactured using corundum with high purity levels, ensuring minimal impurities that could compromise their performance. The absence of impurities contributes to enhanced chemical stability and resistance to thermal shock. Dense Structure and Low Porosity High-quality corundum bricks exhibit a dense structure wi...

In elevated-temperature industrial applications, refractory materials are essential for furnishing thermal insulation and protection against extreme heat. Unshaped refractory materials, also known as monolithic refractories, have gained significant popularity owing to their versatility and ease of installation. In this treatise, we shall explore what unshaped refractory material is, its composition, types, and its wide range of applications. Discerning Unshaped Refractory Material Unshaped refractory material from  Kerui company  refers to a type of refractory that is not precast or shaped into specific forms prior to installation. Unlike traditional refractory bricks or blocks, unshaped refractories are delivered in a ready-to-employ state and can be directly applied to the desired area. They are typically composed of a mixture of refractory aggregates, binders, and additives, which are combined with water or other liquid agents to form a workable consistency. Composition The...