After polymerization, spinning, and then oxidized and carbonized, a black carbon fiber "broke out of the furnace". As the "king of new materials", carbon fiber is also called "black gold". It is a high-strength, high-modulus new fiber material with a carbon content of more than 95%. Its mechanical properties are excellent, the specific gravity is less than a quarter of steel, but the strength is 7 to 9 times that of steel, and it also has the characteristics of corrosion resistance and high modulus. The application prospect is very broad and can be widely used in various industries. .
At the second China International Import Expo held in November this year, bicycles, kayaks, gears and other products made of carbon fiber materials produced by SHSH Carbon Fiber Technology Group appeared in the brand pavilion.
These carbon fiber composite materials use the unique NaSCN (sodium thiocyanate) wet process developed by SHSH and a complete set of technology with independent intellectual property rights. They have 3000 tons of polymer, 3000 tons of raw silk, and 500 tons of carbon fiber (1000 tons under construction). ) 'S industrial production capacity. At present, each tow of the carbon fiber is composed of 12,000 wires, that is, a 12K tow.
According to Huang Xiangyu, deputy chief engineer of SHSH, the company's carbon fiber has been applied in many fields within a few years since its advent, and has changed the traditional practices in some fields to help "Made in China".
Carbon fiber sucker rod, oilfield oil production shows its skills
At the 21st China International Industry Fair held in September this year, a new high-efficiency mechanical recovery system centered on the development of carbon fiber and its continuous sucker rod was jointly declared by three companies, SHSH, Shengli Oilfield and XD Oilfield It was awarded the China International Industry Fair Grand Prize for the first time by the Industry Fair and became a successful case of developing and applying new carbon fiber materials to enhance the traditional oil recovery industry.
The system's carbon fiber reinforced composite material continuous sucker rod can be up to 5000 meters long, which successfully overcomes the need for the sucker rod to be connected by a sleeve rod in the past, long working time, metal rod is easy to corrode, short service life, and power consumption during operation Big disadvantages. At present, it has been industrialized in 545 wells in 94 blocks of the five major oil fields in China, and has achieved direct economic benefits of 245 million yuan. The application effect in the three directions of deep pumping, energy saving, consumption reduction and anti-corrosion and longevity is remarkable. It is a revolutionary technical upgrade of the oil field oil recovery system, which will greatly promote the development and technical level of China's oil extraction industry.
Carbon fiber wear-resistant parts, excellent performance to replace imported
In February this year, the carbon fiber wear-resistant sheet developed by SHSH was applied to acrylic spinning machinery and equipment, and passed the equipment high-speed rotation wear test. This is another successful application of carbon fiber composite materials in the industrial field after the advent of carbon fiber gears, and will break the passive situation in which wear-resistant parts rely on imports for a long time.
According to engineering and technical personnel, high-speed rotating industrial machinery and equipment have extremely strict requirements on the wear resistance, heat resistance and chemical resistance of materials. In this field, imported materials have been used for a long time, but the problems of fast wear and short service life cannot always be effectively solved.
SHSH uses wear-resistant sheets based on carbon fiber reinforced polyether ether ketone (PEEK) resin composite materials, processed by advanced granulation technology and extrusion molding process, and has excellent properties such as wear resistance, heat resistance, corrosion resistance and self-lubrication. The service life can be increased by 3 to 4 times. After the wear-resistant sheet is applied to the company's acrylic equipment, it effectively reduces the tow damage in the production process, improves the production continuity, and ensures the quality of the acrylic tow.
Carbon fiber reinforcement technology, unique in the field of reinforcement
At the end of last year, SHSH carbon fiber reinforced materials were successfully used in the reconstruction and expansion project of Nanjing Airport for the first time. In the reconstruction and reinforcement project of the airport terminal building, the project construction unit uses the "carbon cloth" to strengthen and reinforce the roof, beams, columns, floor slabs and other secondary and main bearing structures according to the structural characteristics and transformation requirements of the terminal building . The "carbon cloth" reinforcement method is simple and convenient, and it is very easy to construct the concrete surfaces, bending members and other complex parts inside the terminal, which not only speeds up the construction period, but also reduces the project cost.
In recent years, SHSH has cooperated with Harbin Institute of Technology and other institutions in the field of carbon fiber composite reinforcement. At present, carbon fiber reinforcement technology has been widely used in highways, overpasses, high-speed rails, tunnels and other dangerous infrastructure repair projects, as well as oil and petrochemical pipeline repairs and other fields, which has formed a wealth of application experience and has a good demonstration role. On this basis, the "Carbon Fiber Composite Material Reinforcement and Repair Chemical Pipeline Technical Specification" jointly formulated by the company and Harbin Institute of Technology passed the review process of the China Composite Materials Industry Association in March this year, marking the domestic carbon fiber industry in the field of petrochemical pipeline reinforcement and repair. The first technical specification was officially established.
After three years of research, the SHSH carbon fiber project successfully developed 48K large tow carbon fiber in 2018. Since each tow is composed of 48,000 wires, the strength of the single wire reaches high performance. The introduction of 48K large tow carbon fiber has given the company's carbon fiber technology a strong driving force to support the development of the industry. It will usher in a broader application prospect in the fields of rail transit, new energy vehicles, civil aviation, wind power and other fields, helping "China Smart Manufacturing" ".