Electric wire furnace
Ceramic fiber insulation tubes are tubular high-temperature refractory products made from high-purity ceramic fibers using vacuum suction filtration molding or wet molding processes. As a specialized insulation material for pipelines and circular thermal equipment, it combines the thermal insulation properties of fibers with the tubular structure, solving the problems of poor fit and complex construction when traditional flat materials are wrapped around curved pipelines. The product can operate at temperatures ranging from several hundred degrees to over a thousand degrees, depending on the fiber material, and has a low thermal conductivity coefficient. It can be widely used for thermal insulation of various high-temperature pipelines, roller conveyors, valves, and circular thermal equipment in industries such as metallurgy, machinery, electronics, ceramics, chemical engineering, and aerospace. The purpose is to achieve energy conservation, improve working environments, and prevent burn accidents. The appearance is white or grayish-white, with uniform tube walls and precise dimensions, just like a tailored insulation jacket for pipelines.
Category:
Liner of resistance wire tube furnace and cylindric furnace
The company’s products feature numerous technological achievements and innovative, practical technologies. We manufacture polycrystalline mullite fiber fireproof boards, polycrystalline alumina fiber furnace linings, ceramic fiber furnace linings, polycrystalline mullite fiber furnace linings, and crystalline fibers.
E-mail：ncjt@zjncjt.com
Product Description
1. Product description:
Ceramic fiber insulation pipes are tubular products developed to meet the insulation and heat-shielding needs of high-temperature industrial pipelines and circular thermal equipment. Made from high-purity ceramic fiber wool, including ordinary, high-alumina, zirconium-containing, and polycrystalline mullite fibers, the chemical composition primarily consists of Al₂O₃ and SiO₂. Based on the manufacturing process, they can be divided into two categories: one is the vacuum suction filtration molding process, where fiber slurry is injected into a dedicated tubular mold, and then dehydrated, dried, and heat-treated to form an integrated pipe; the other is the wet molding process, where the fiber slurry is pressurized and molded in a mold before being demoulded. The products can be divided into straight pipes, elbows, tees, reducers, and other shaped fittings according to their structure, and can be prefabricated with socket-and-spigot connections for ease of on-site installation. They are available in different temperature resistance grades according to their operating temperature. The products feature uniform wall thickness and smooth inner and outer surfaces, and can be processed into half-open Hafner structures as needed, facilitating the wrapping of installed pipelines. They can be widely used for high-temperature pipeline insulation in industries such as metallurgy, chemical, electronics, and aerospace. The appearance is white or grayish-white, with uniform pipe walls and precise dimensions, resembling a tailored insulation jacket for pipelines.
2. Product Features:
Due to its unique tubular structure and molding process, ceramic fiber insulation pipe exhibits a series of performance characteristics that are significantly superior to traditional flat material-wrapped pipes:
Structural Design and Customization: Utilizing specialized molds, vacuum suction filtration or molding, we can produce pipes of various diameters, wall thicknesses, and lengths, as well as special-shaped fittings such as elbows and tees. The semi-open half-coupling structure design facilitates installation, disassembly, and maintenance, while the socket-and-spigot connection structure makes construction easier and ensures better sealing.
Excellent thermal insulation performance: It inherits the characteristics of ceramic fiber materials, such as low heat capacity and low thermal conductivity. With a low thermal conductivity coefficient, it can effectively reduce heat loss in pipelines, achieving significant energy-saving effects. The low surface temperature improves the working environment and prevents burn accidents.
High temperature stability and thermal shock resistance: The product exhibits low linear shrinkage and good volumetric stability within its operating temperature range. The fiber structure endows it with excellent thermal shock resistance, allowing it to withstand rapid cooling and heating without cracking or spalling.
Lightweight and mechanical properties: The product has a much lower bulk density than traditional refractory materials, making it lightweight. At the same time, it possesses a certain compressive strength and toughness, capable of withstanding mechanical vibration and pressure, and exhibiting good wear resistance and spalling resistance.
Chemical stability: It exhibits good resistance to most chemical media, resists acid and alkali corrosion, and is not corroded by most molten metals. It is environmentally friendly, asbestos-free, and safe to use.
Installation and Sealing: The product is easy to cut or machine, allowing for on-site fine adjustment of dimensions. It is convenient to install with a semi-open structure, and the socket-and-spigot connection ensures overall sealing. Surface curing agent or refractory mortar can be applied to improve erosion and corrosion resistance.
3. Product Applications
It is widely used in the metallurgical industry for insulation and heat insulation of blast furnace hot air ducts, heating furnace flues, and annealing furnace ducts; in the petrochemical industry for insulation of cracking furnace ducts, reformer ducts, high-temperature steam pipelines, and storage tanks; in the power industry for insulation of boiler ducts, steam turbine ducts, and flue gas desulfurization ducts; in the ceramic industry for insulation of roller kiln roller bars, tunnel kiln flues, and drying ducts; in the machinery industry for insulation of heat treatment furnace ducts and forging heating furnace ducts; in the glass industry for insulation of melting furnace flues and annealing kiln ducts; in non-ferrous metal processing for insulation of molten metal conveying ducts and launders; in circular components such as observation holes, burner bricks, and furnace doors of industrial kilns; in high-temperature test equipment duct insulation in the aerospace and military industries; in insulation and protection of exhaust systems and catalytic converters in the automotive industry; and in energy-saving insulation of HVAC systems ducts, thermal networks, and chemical pipelines.
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E-mail: ncjt@zjncjt.com
Zhejiang Nengcheng Crystal Fiber Co., Ltd
150 meters south of the intersection of Wulin Road and Yonghe West Road, Deqing County, Huzhou City, Zhejiang Province.
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