At the 22nd China International Industry Fair, China’s leading high-performance ceramic fiber technology company SHRR Ceramic Materials Technology Group announced the completion of the pilot test of the domestic alumina continuous fiber project, creating a set of high alumina reinforced composite colloids and prepreg The overall industrial chain of production, fiber production, fabric production, structural parts production, and finalization testing indicates that 15 years of scientific research has gone out of the laboratory, and China's new high-temperature materials have ushered in new development.
On October 23, SHRR announced that it will build a new high-temperature alumina continuous fiber production base project. After the project is put into production, it will help my country to enhance its international competitiveness in the fields of ultra-high temperature insulation materials, high temperature special-shaped parts, and high temperature gas filtration materials in aerospace and other related industries.
SHRR's alumina continuous fiber production base project has a total investment of 350 million yuan. The first phase of the project will be equipped with 4 related production lines, with an annual output of 100 tons of high temperature alumina continuous fiber materials. Alumina fiber has low thermal conductivity, heating shrinkage and heat capacity, and has good chemical stability. It can be used in acidic environment, oxidizing atmosphere, reducing atmosphere and vacuum conditions. It will improve China's equipment capabilities and international competitiveness in the fields of ultra-high-temperature insulation materials, high-temperature special-shaped parts, and high-temperature gas filtration materials in aerospace and other related industries, break the long-term monopoly and technological blockade of foreign companies on the domestic market, and fill the gap in the domestic market .
Alumina continuous fiber is an internationally recognized main material of the new generation of high temperature resistant hot end components. It has a wide range of applications. In addition to a large number of applications in the aerospace field, it will also be used in industrial and civil applications, such as wire and cable, automotive industry, and fire protection systems. Wait.
But at the same time, there are many disciplines in the high alumina production process, and each production link is non-standard equipment, so the research and development of mass production process equipment is very difficult. Oxide sol is the basic raw material for continuous oxide ceramic fiber production, and the localization of basic raw materials, large-scale production, continuous production equipment, and automation are the key problems faced by the domestic oxide ceramic continuous fiber industry.
SHRR passed the preliminary pilot test and industrialization simulation test, completed the screening and confirmation of industrial-grade domestic basic raw materials, realized the research and development and finalization of 100-ton domestically-made equipment with independent intellectual property rights, and formed the standard process of colloidal industrial production and colloidal product quality The testing standards can ensure the precise, stable and efficient control of key indicators such as sol viscosity, colloidal bubbles, grain size, and trace components. This technology is the first in China.
Its proprietary spinning tunnel technology for continuous alumina fiber has reached the international advanced level, and the production technology of 100-ton oxide sol has been the first in China to break through the key nodes of China’s industrial production. The continuous fiber alumina fiber laying and drying technology greatly reduces product prices. , The product quality is stable and reliable, and it is possible to realize domestic substitution of imports. SHRR Technical Chief Engineer Guan Ketian said that the various properties and indicators of SHRR's alumina continuous fiber products are close to the international level [compared to the FP and PRD-166 series of DUPONT in the United States, the Nextel series produced by 3M in the United States, and ICI produced in the United Kingdom. Saffil series, Altel series produced by Japan's Sumitomor company], and the price is about 40% lower than that of foreign imports. After large-scale industrialization in the future, there is more room for cost reduction.
Lu Yu said that the domestic alumina continuous fiber project is of great significance for breaking through external constraints and filling the domestic technological gap. It has irreplaceable characteristics; it has a broad scope in the manufacturing fields of aerospace engines, semiconductor sintering furnaces, and special-shaped large-structure burning racks. market. In addition, it has a high degree of matching with key industries such as aerospace and ultra-high-voltage power grids developed in the new area, and can realize inter-industry linkage.