Use a 1000-degree Celsius high-temperature spray gun flame to challenge a handful of "cotton cores". Surprisingly, the "cotton core" won, not only did it not burn, but only a slight residual temperature left after leaving the flame. It turned out that the magic material that looks like cotton core is high-performance alumina fiber, but it is a "high temperature rival".
What is the unique charm of high-performance alumina fiber?
High-performance alumina fiber is a new material and can be widely used in the automotive industry, aerospace, defense and military industries. As the only domestic company that can produce alumina fiber commercially, SDDH is making downstream customers chase.
Before the commercial production of high-performance alumina fibers by SDDH, the technology that could produce such products internationally was only controlled by companies in the United States and Japan. The market for alumina ceramic fiber projects in China was blank and suffered from international industries such as the US 3M and Mitsubishi. Giant's technology blockade and product monopoly.
In order to break the foreign monopoly, the team of Professor Chen Dairong of the National Colloidal Materials Engineering Technology Research Center of SD University has started to carry out technical research on alumina ceramic fibers since 2002. After 17 years, it has broken the foreign technical monopoly and realized the domestic high-performance fiber A major breakthrough in the field. SDDH New Material Technology Co., Ltd. has achieved patent results, established an alumina fiber production line, and achieved the transformation of results. It has become the only domestic company and the third enterprise in the world to master high-performance alumina fiber production technology.
The project plans to invest a total of 600 million yuan to build 1,000 tons of high-performance alumina short fiber and its products and 100 tons of high-performance alumina continuous fiber series products, of which short fiber product capacity accounts for 7% of the global total capacity. The first phase investment of the project is 130 million yuan, and two high-performance alumina short fiber production lines will be built to achieve a production capacity of 200 tons per year. The construction has officially started in September 2019 and will be put into trial production in July this year.
The high-performance alumina fiber products look unremarkable like a cotton core. However, the field accepted the challenge of a high-temperature spray gun flame of 1000 degrees Celsius. Not only did it not burn, but only a slight residual temperature left after leaving the flame. One of the advantages. At the same time, it also has multiple advantages such as good thermal stability, high mechanical strength, large elastic modulus, and strong resistance to chemical attack.
High-speed friction between the missile and the atmosphere generates high temperatures, and the internal electronic components need to be protected by thermal insulation materials; the honeycomb ceramics used in automotive three-way catalysts need to be covered with soft, heat-insulating and cushioning materials; tank engines, The fireproof layer under the aircraft carrier deck, etc., need a high temperature resistant thermal protective material to protect, high-performance alumina fiber is a "hard core" material that can meet these needs.
The product is one of the latest ultra-lightweight high-temperature insulation materials at home and abroad. The products are widely used in the automotive industry, aerospace, nuclear power and nuclear energy fields.