In the steel industry's heat treatment processes, furnace systems must operate steadily within the 800°C to 1100°C range for extended periods. However, traditional lining materials often suffer from poor insulation efficiency, high heat loss, slow heat-up times, and frequent thermal shock cracking. These issues lead to increased energy consumption, rising maintenance costs, and extended downtime. Under conditions involving frequent start-stop cycles and long-term operation, optimizing the insulation system of heat treatment furnaces becomes key to improving thermal efficiency and equipment reliability.

Superior Thermal Insulation + High Flexibility + Excellent Thermal Shock Resistance

CCEWOOL refractory ceramic fiber blanket delivers low thermal conductivity, high thermal shock resistance, and excellent flexibility. Even under continuous high-temperature operation, it maintains a stable fiber structure and withstands repeated heating and cooling cycles without powdering or collapsing. Its soft, compressible nature allows it to conform closely to furnace walls, roofs, and other complex surfaces, effectively reducing external shell temperatures and enabling a lighter, more efficient furnace lining system.

In-House Electric Furnace Spinning + Automated Layering and Needling Technology

CCEWOOL refractory ceramic fiber blanket is produced using high-purity raw materials melted in our in-house electric furnaces, forming uniform, fine-diameter fibers with minimal impurities. These fibers are then formed into blankets through automated layering and double-sided needling, enhancing the interlayer structure and ensuring strong tensile strength and flexibility with consistent dimensions.

The entire manufacturing process is supported by automated dosing systems and high-temperature stability testing protocols, ensuring that every batch of ceramic fiber blanket delivers consistent mechanical strength and insulation performance under high-temperature conditions.

U.S. Customer

Cooperation years: 9 years

Ordered product: CCEWOOL refractory ceramic fiber blanket

Product size: 1"x24"x25' / 2"x48"x12.5'

A U.S.-based steel manufacturer has been using CCEWOOL refractory ceramic fiber blanket continuously since 2015 in multiple heat treatment furnace systems for both hot-face and back-up insulation. The latest order includes sizes 1"x24"x25' and 2"x48"x12.5'. The customer reports stable insulation performance, long service life, and timely technical support—resulting in steadily increasing reorder frequency year after year.

With over 20 years of experience in the development and manufacturing of high-temperature insulation materials, CCEWOOL refractory ceramic fiber blanket has become the preferred solution for optimizing hot-face and back-up insulation systems in heat treatment furnaces across the global steel industry. Moving forward, we will continue to support our customers with high-quality materials and expert technical service, helping them achieve energy savings, reduced structural load, and longer maintenance intervals.