Super steel technology applied to diesel engine repair industry

Super steel technology is used in the diesel engine repair industry. According to Professor Liu Xianghua of Northeastern University, although a lot of laboratory research and theoretical research have been done on super steel development projects in the United States, Japan, South Korea, Europe and other foreign countries, no industrial application reports have yet been seen. my country has come to the fore in this round of international competition in the development and application of super steel. Super steel products have been used in various industries such as automobiles and construction, achieving industrialization goals and playing an important role in energy saving and emission reduction of steel products.

With the introduction of the Ministry of Construction's industrial policy to use Class III steel bars as the main reinforcement in recent years, the output of fine-grained super steel rods and wires has increased significantly in recent years. The process of replacing ordinary 200-300MPa steel bars with 400-500MPa steel bars The progress is rapid, and it is estimated that by 2015, the proportion of my country's high-strength steel production will reach 80%. One-third of them are organized according to the idea of super steel, and its output will exceed 30 million tons. Under the background of rapid economic development, the prosperity of the construction industry provides a broad market for super steel rods and wires, and low-cost, high-strength super steel rods and wires will also provide strong support for the construction industry.

Super steel also has broad application prospects in other industries. In the past, ship plate steel, bridge steel, container plate, etc., which relied on the addition of microalloying elements to improve performance, can all improve the strength, toughness, and use performance by refining the grains. Relying on the idea of developing super steels to save microalloy elements, reduce costs, and enhance the market competitiveness of products has become a conscious action of steel producers.

The successful development of super steel has had an important impact on the upgrading of steel varieties in my country. The new generation of low-cost, high-performance, fine-grained steel grades with super steel characteristics has begun to gradually replace the outdated steel grade standards, and super steel is a milestone. The symbol of style has been recorded in the history of steel product development in my country.

China's carbon fiber materials will be highly developed in the next ten years

Professor Li Kejian, deputy secretary-general of the National Advisory Committee for the Development of New Materials Industry, predicts that the next decade will be a decade of high development for China's carbon fiber materials. The composite reinforced substrate with excellent mechanical properties has a wide range of applications. Carbon fiber has excellent mechanical properties and chemical stability, and is a fiber with high specific strength and high specific modulus among the high-performance fibers that have been mass-produced. In addition, carbon fiber also has many other excellent properties, such as low density, high temperature resistance, corrosion resistance, friction resistance, fatigue resistance, high vibration attenuation, high electrical and thermal conductivity, low thermal expansion coefficient, and high X-ray penetration , Non-magnetic but electromagnetic shielding. It is mostly added as a reinforcing material to resin, metal, ceramics, concrete and other materials to form a composite material. In this sense, it has predicted the broad application prospects of carbon fiber in engineering.

In terms of the world's carbon fiber structure, developed countries have mature industries and a high degree of industry concentration. The world's carbon fiber production is mainly concentrated in a few developed countries such as Japan, the United Kingdom, the United States, France, South Korea and my country's Taiwan Province. The three Japanese companies account for about 78% of the world's output. The carbon fiber industry in developed countries has gradually matured. As of 2008, major carbon fiber manufacturers have a total capacity of 64,200 tons of large and small tows