In our daily life, aluminum silicate needle felt is not common. We just know that it is aluminum silicate refractory fiber felt, a kind of refractory material. This refractory material has a wide range of uses and can be used in chemical industry, construction industry, electronics industry and so on. Today, redun Xiaobian will introduce the processing technology of aluminum silicate needle felt. Before understanding the processing method, let’s understand what is aluminum silicate needle felt.
1、 Introduction of aluminum silicate needle felt
Aluminum silicate needle felt is a kind of lightweight ceramic fiber thermal insulation material, which has the advantages of white color, regular size, fire resistance, heat insulation and thermal insulation without any binder. When used in neutral and oxidizing atmosphere for a long time, aluminum silicate needle felt can still maintain good tensile strength, toughness and fiber structure. The temperature resistance is 950-1400 ℃. It has chemical stability, thermal stability, sound absorption and noise reduction performance, high tensile strength and low thermal conductivity; Low heat capacity. Aluminum silicate needle felt, also known as ceramic fiber needle felt, is the main raw material of ceramic fiber module, which is the thermal insulation material for the wall lining of industrial kiln.
Because aluminum silicate needle felt has so many advantages, it is often used in chemical industry, construction industry, electronic industry, industry, air conditioning and refrigeration and other fields.
2、 Processing method of aluminum silicate needle punched felt
Aluminum silicate thermal insulation material itself is harmless to human body. Its components are silica and alumina. It will be directly excluded from the body after human absorption, so it is non-toxic. Aluminum silicate can cause dust pollution. During the installation of aluminum silicate thermal insulation materials, a large number of floating fiber particles will be generated. These floating fiber particles will enter the lungs of the body with the workers’ breathing, some will be removed from the body through breathing, and some will remain on the lung mucosa (trace, which is difficult to cause harm to the body), Over time, it will have a definite effect on the lungs.
Therefore, we need to take safety measures in the construction project, wear filter breathing devices, and carry out ventilation treatment after construction, so as to avoid harm.
Aluminum silicate needle felt adopts advanced cwcn equipment and double-sided needle felt assembly line. Its equipment and production process are at the leading level of Ling. All kinds of aluminosilicate fiber needle punched blankets are made of different raw materials (such as pyrogem, SiO2, Al2O3, zircon sand, etc.) through the processes of sedimentation needle punching, heat setting, vertical and horizontal cutting, coiling, etc. It has uniform texture, flat surface and excellent tensile strength. Because the aluminum silicate needle felt itself does not contain binder, the heat resistance is greatly improved.
All kinds of aluminosilicate needle felt are made of ordinary, high-purity, high alumina and zirconium containing aluminosilicate fiber cotton by wire throwing and fiber forming process, which is made by needling, heat setting, vertical and horizontal cutting, coiling and other processes. All kinds of needle punched blankets not only have the same excellent properties as the corresponding varieties of bulk aluminum silicate fiber cotton, but also have excellent tensile strength. The needle felt has uniform texture and flat surface. Needled felt with different capacity and thickness provides users with a wide range of material selection, and has obtained the benefits of structure and energy saving.
When the aluminum silicate cotton is sprayed, a certain proportion of binder is added to form the aluminum silicate felt blank, which is penetrated and shaped by the hot air in the curing chamber. Aluminum silicate blanket is a choice that can play such a big role. It realizes the lightness of the kiln top and kiln wall, and the veneer faces the inner side of the chamber. This outstanding performance makes it have a good application in more fields. This is the volatilization of aluminum silicate binder. The material of aluminum silicate fiber blanket is a new light refractory.
Aluminum silicate roll felt is mainly used in places requiring high temperature toughness and high self-bearing strength; It can also be used in places with high air velocity and great mechanical damage. Ceramic fiber blanket can be used in these occasions. Ceramic fiber blanket has strong wind erosion resistance and can be directly contacted with flame and high-speed air flow. It also has good fire resistance, stable high temperature performance, thermal shock resistance, low heat capacity and high compressive strength under high temperature.
3、 Product properties of aluminum silicate fiber felt
1. Low thermal conductivity, low bulk density and good thermal insulation performance. It is made of different materials through a series of procedures such as heat setting, vertical and horizontal cutting and coiling. It does not contain any binder, has relatively uniform texture and excellent tensile strength, and has excellent heat resistance.
2. It is used in industrial kilns, heating devices, high-temperature pipeline lining, electric boilers, gas turbines, nuclear power insulation and chemical industry
Wall lining of industrial high-temperature reaction equipment and heating equipment, thermal insulation of building materials industrial glass tank kiln, fire prevention and thermal insulation of high-rise buildings, thermal insulation of stress relief of weldments, thermal insulation of stress relief of special-shaped metal castings, thermal insulation of furnace door top cover and high-temperature filter material. It can still be used in neutral and oxidizing atmosphere for a long time
3. Maintain good tensile strength, toughness and fiber structure.


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Shandong redon high temperature materials Co., Ltd. has domestic high-end production equipment and reliable production technology, with an annual output of 1050 ceramic fiber series products, 1260 ceramic fiber series products, 1400 ceramic fiber series products and 1600 polycrystalline series products of more than 10000 tons. There are more than 30 kinds of products in different forms, such as cotton, blanket, felt, board, paper, various textiles, profiled products, modules, folding blocks, castables, spraying and so on, which can meet the heat insulation requirements of different situations in the high temperature field. Welcome to click the online service at the bottom right of the website or submit an online inquiry. We will contact you as soon as possible.