Carbon fiber is the fiber-like carbon material consisted of organic fiber or low –molecular heated to 1500 ℃ , and it contains 90% carbon. In early 1879, Edison invented lamp wire by carbon fiber , but it was not until 1950 that America eventually made carbon fiber with certain mechanical function ,which could be made as composite reinforcement material. Since then on, it came to the new stage of carbon fiber development, which has super quality of high-strength, high modeling quantity, high temperature resistance, abrasion resistant, corrosion resistance, exhaustion resistance 、 afterflow resistance /creep / walkout 、 conduction of electricity 、 conduction of heat and far infrared radiation 。 It can reduce the weight of the structures based on composite material mode so as to improve the technique function of the structures. Now it has been widely used in hi-tech fields, such as aerospace, modern sewing machinery, petrochemical industry, medical machinery ,automobiles, machinery manufacturing, construction, sports and entertainment items, telecommunication, electrical heating etc.
    Superior to metal material, tensile strength of carbon fiber composite constructive material is three to four times higher than steel; rigidity is two to three times higher, exhaustion resistance is two times higher, weight ratio is three to four times lighter , and thermal dilation is four to five times lower .With its arrival, fiber composite material has more promising and practical perspective.
    Since varieties of fiber material strengthening technique gradually has the same importance with structure design, the development process of carbon fiber material attracted great attention from developed and developing countries. That's the favorable development situation in carbon fiber material we achieved. In the process of research and development in carbon fiber material, scientific staff have realized that carbon fiber material is the most luring fiber strengthening material in 21 st century.