Refractory Fiber Blanket

Refractory Fiber Blanket is made from special ceramic fiber and processed through a double-sided needling method. During needling, the fibers become more closely interlocked, forming a more complete fiber network throughout the blanket.

This structure helps improve resistance to layer separation and provides the blanket with useful tensile strength. No binder is added, so the material retains the original flexibility and chemical stability of the ceramic fibers.

According to the supplied information, exposure to oil, water, or steam does not remove the material's refractory or thermal insulation properties. The roll form also makes it convenient to cut, wrap, and install in multiple layers.

This makes the product suitable for furnace walls, furnace roofs, furnace doors, and external equipment insulation where a continuous flexible insulation layer is required.

The product is available in NC1260, NC1350, NC1400, NC1430, and NC1600 grades, with classification temperatures of 1260°C, 1350°C, 1400°C, 1430°C, and 1600°C.

For NC1260 through NC1430, bulk density is 96–160 kg/m³. At a density of 128 kg/m³, these grades have a tensile strength of 80 kPa. NC1600 has a listed tensile strength of 100 kPa.

The recommended working temperatures, permanent linear change after heating, and thermal conductivity vary by grade.

When selecting a Refractory Fiber Blanket, buyers should consider furnace surface temperature, required insulation thickness, installation method, and heating and cooling frequency rather than comparing only classification temperatures.

Nengcheng Crystal produces ceramic fiber cotton and also carries out further processing into fiber products. The production system allows raw material selection, fiber condition, and blanket processing to be coordinated.

The company has 45 employees, with personnel working in material development, production processes, quality control, and technical service.

The material can be used in vacuum annealing furnaces, box-type heat treatment furnaces, metallurgical heating furnaces, new-energy high-temperature equipment, and laboratory kilns.

For furnace linings that require several insulation layers, technical staff can discuss the use of different temperature grades for the hot-face and backing positions. This provides a way to match higher-temperature materials to hotter zones while using other grades for supporting insulation areas.