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Which industries are used by Shandong carbon fiber composite machine manufacturers?
- 2019-06-06-

In Shandong's carbon fiber composite machine manufacturer-composite material family, fiber reinforcement materials have always been the focus of attention. Since the advent of glass fiber reinforced glass fiber and organic resin, carbon fiber, ceramic fiber and boron fiber reinforced composite materials have been successfully developed and their performance has been continuously improved, which makes their composite materials appear to be alive and well. Let's take a look at the unique carbon fiber composites。

Carbon fiber is mainly a kind of special fiber composed of carbon elements, and its carbon content varies with different types, generally more than 90%. Carbon fiber has the characteristics of general carbon materials, such as high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance。 However, unlike ordinary carbon materials, its shape is markedly anisotropic, soft, and can be processed into various types。 The fabric exhibits high strength along the fiber axis。 Carbon fiber has a small specific gravity and therefore has a high specific strength.

Carbon fiber is made of man-made chemical fiber with high carbon content and not melting during heat treatment, which is processed by thermal stable oxidation treatment, carbonization treatment and graphitization.

Carbon fiber is a new material with excellent mechanical properties. Its specific gravity is less than 1/4 of steel. The tensile strength of carbon fiber resin composites is generally above 3500Mpa, 7~9 times that of steel, and the tensile modulus is 23000. ~43000Mpa is also higher than steel. Therefore, the specific strength of CFRP, that is, the ratio of the strength of the material to its density can reach 2000Mpa/(g/cm3) or more, while the specific strength of A3 steel is only about 59Mpa/(g/cm3), and the specific modulus is also higher than that of steel。

use

The main purpose of carbon fiber is to compound with a matrix such as resin, metal or ceramic to form a structural material。 Carbon fiber reinforced epoxy resin composites have higher specific strength and specific modulus, which are higher in existing structural materials. In areas where density, stiffness, weight, and fatigue characteristics are critical, carbon fiber composites are advantageous in applications where high temperatures and high chemical stability are required。

Carbon fiber was produced in the early 1950s in response to the needs of science and technology such as rockets, aerospace and aviation. It is now widely used in sports equipment, textiles, chemical machinery and medicine. As technology becomes more demanding on the performance of new materials technology, it has prompted scientists and technicians to continuously improve。 In the early 1980s, high-performance and ultra-high-performance carbon fiber appeared one after another, which was another leap in technology. It also marked the beginning of a new stage in the research and production of carbon fiber.

A composite material composed of carbon fiber and epoxy resin is an advanced aerospace material due to its small specific gravity, good rigidity and high strength. Because the weight of the spacecraft is reduced by 1 kilogram, the launch vehicle can be reduced by 500 kilograms. Therefore, advanced composite materials are competing in the aerospace industry. There is a vertical landing gear that uses carbon fiber composites that account for 1/4 of the total weight of the aircraft, or 1/3 of the weight of the wing. According to reports, the key components of the three rocket propellers on the US space shuttle and the advanced MX missile launch tubes are made of advanced carbon fiber composite materials。

In the current F1 (World Formula 1 Championship), most of the structure of the car is made of carbon fiber。 One of the big selling points of sports cars is the use of carbon fiber throughout the body to improve aerodynamics and structural strength. Carbon fiber can be processed into fabrics, felts, mats, tapes, paper and other materials. In addition to being used as a thermal insulation material, the conventionally used medium carbon fiber is generally not used alone, and is often added as a reinforcing material to materials such as resin, metal, ceramic, concrete, etc. to form a composite material. Carbon fiber reinforced composite materials can be used as aircraft structural materials, electromagnetic shielding materials, artificial ligaments and other body substitute materials, as well as for the manufacture of rocket casings, motor boats, industrial robots, automotive leaf springs and drive shafts。


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