ã€China Aluminum Industry Network】Ceramic fiber is a kind of fibrous lightweight refractories. It has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, low specific heat and mechanical vibration resistance. Chemicals, petroleum, ceramics, glass, electronics and other industries have been widely used. In recent years, due to rising global energy prices, energy conservation has become the background of China’s national strategy. Ceramic fibers that are 10-30% more energy-efficient than traditional refractory materials such as insulating bricks and pouring materials have become more widely available in China. The application is promising. Ductile Iron PN10 PN16 PN25 PN40 Dismantling Joint
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So far, there are more than 200 ceramic fiber manufacturers in China, large and small, but the production process of ceramic fibers with a classification temperature of 1425°C (with zirconium fibers) and below is only divided into throwing blankets and blowing. Two blankets. Which one is better than the silk blanket and the spray blanket? Which process to choose the blanket is more suitable? From the technical point of view is as follows:
1. The diameter of the filaments: the filaments are coarser, the filaments are generally 3.0-5.0 μm, and the spinner fibers are generally 2.0-3.0 μm;
2. The length of the filaments: The filaments are longer and the filaments are generally 150-250mm, and the filaments are generally 100-200mm.
3. Thermal conductivity: The spray blanket is superior to the fleece blanket due to its finer fibers;
4. Tensile and flexural strength: The fleece blanket is superior to the spray blanket due to its thicker fiber; string 5
5. Application for making ceramic fiber blocks: The spinning silk blanket is superior to the spray blanket due to its thicker and longer fibers. During the folding process of the block production, the blown fiber blanket is easy to break and tear, while the spinning silk fiber blanket It can be folded very tightly and is not easily damaged. The quality of the block will directly affect the quality of the lining;
6. Application of large-scale blankets such as waste heat boilers for vertical floor coverings: Silk-fibre blankets are thick and long, have better tensile strength, and are more durable. Therefore, the fluffing blanket is better than the spray blanket.
From the production history point of view, the early birth of the spray production process, but the single-line production capacity is low, with an annual output of 1000-1500 tons. With the increasing requirements of production efficiency and continuous exploration and research of the production process, a more advanced spinning yarn production process was invented. The production capacity of a single production line of the spinning silk production process can reach 2-4 times of the spinning process. Take the UK's Morgan Thermal Ceramics's silk throwing blanket production line in Shanghai as an example, the single-line annual output reached nearly 6,000 tons; for example, the Japanese silk spray blanket production line of Isaolai Company in Suzhou has a single-line annual output of only 1,500 tons. For the former quarter.
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The spinning yarn production process has been accepted by the vast majority of industry giants and customers. Therefore, almost all newly-built ceramic fiber production lines in China have used the silk spinning process method in the past five years. For example, in the United States in June 2008, China's domestic production of odd resistance joint Fiber company's production line for the spinning process, the domestic large ceramic fiber production company Luyang's main production line is also mostly spinning production process. According to the relevant market statistics and analysis of China's famous light insulation material sales and engineering service company, Shanghai Essoway Refractory Material Co., Ltd., it shows that in the past five years, major domestic iron and steel and petrochemical projects, especially the need A large number of ceramic fiber block projects, almost all use of ceramic fiber blanket production process and block. It is not difficult to see that the vast majority of customers have a high degree of confidence and have chosen the ceramic fiber produced by the silk spinning production process.
Spinning fiber blanket also has its unique application. If it is necessary to break the fiber into secondary processed products (such as making vacuum molded products, etc.), the spinning fiber can be more easily mixed with other raw materials due to its finer fibers. More popular.
Therefore, the ceramic fibers of the silk spinning and spinning process have their own advantages. Customers should avoid them by taking their length according to practical applications, in order to achieve better results. Of course, the application of flicking blankets is far more than spray blankets.
As for the future development prospects, China's total production of ceramic fibers will also increase, and the new production line is still dominated by the spinning silk production process. Relatively speaking, the production scale of the spray blanket and the proportion of the total market will gradually reduce, spray blanket production process is more suitable for the production of smaller companies, especially the early investment in the company with smaller funds. The market competition for spinning silk production technology in China will also become more and more fierce. This is definitely a good thing for consumers because they can enjoy more and better products with less money. This is certainly a good thing for the development of related industries in China's thermal energy applications, especially for energy conservation and consumption reduction in industrial production processes.