A non-melting treatment device and method for highly active refractory metal polymer fibers

Abstract

The invention provides a non-melting treatment device for high-activity refractory metal polymer fibers. The non-melting treatment device comprises a tank (2), an upper sealing cover (1), a lower sealing cover (3), a receiving window (4), a fiber tension control bracket (10), atmosphere control setting and circulating water cooling setting. The tank (2) is in the shape of a bucket, and openings are formed in the upper end and the lower end of the bucket; the upper sealing cover (3) is used for fixing the receiving window (4) to the opening in the upper end of the tank (2) and sealing joints ofthe receiving window (4) and the tank (2); the lower sealing cover (3) is used for sealing the opening in the lower end of the tank (2); the atmosphere control setting is used for providing requiredatmosphere environments to the inside of the tank (2), so that reaction environments of the tank (2) can be controlled; the fiber tension control bracket (10) is used for winding the to-be-treated high-activity refractory metal polymer fibers and controlling pre-tension on the polymer fibers and contraction of the polymer fibers in cross-linking procedures; the circulating water cooling setting isused for providing water cooling circulation for the water tank (2).

Description

technical field [0001] The present invention generally relates to the technical field of ceramic fibers, in particular to a processing device and method for refractory metal polymer fibers Background technique [0002] With the development of aircraft towards long endurance and high Mach number, the thermal environment of key parts such as nose cone, wing leading edge and vertical tail is getting worse, and the temperature can reach more than 2000 °C. In order to achieve the reusability of transatmospheric vehicles, materials are required to achieve low ablation or even zero ablation, and it is urgent to develop ultra-high temperature structural materials. [0003] Continuous fiber-reinforced ultra-high temperature ceramic matrix composites not only have the high specific strength, high melting point, high temperature resistance and ablation resistance of ultra-high temperature ceramics, but also greatly improve the fracture toughness of the material. hot spot. At present,...

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Problems solved by technology

[0008] In view of the defects in the prior art that the refractory metal polymer fiber is exposed to moisture absorption and hydrolysis in the air during the non-melting process and its subsequent treatment, losing its original shape, melting at high temperature or without force, and breaking due to excessive tension, The invention provides a non-melting treatment device and method for high-activity refractory metal polymer fibers. The device of the invention can provide a treatment environment completely isolated from water and oxygen, so that the internal refractory metal polymer fibers can be irradiated by electron beams to achieve Pre-crosslinking, at the same time, the water cooling and air cooling settings in the device can avoid the fusion of fibers during the irradiation crosslinking process, and the tension control frame can effectively control the shrinkage of fibers in the non-melting process. After pre-crosslinking, the metal polymer fiber is further treated at high temperature in an environment completely isolated from water and oxygen, so that the metal polymer fiber is further crosslinked and deactivated, so as to obtain complete crosslinking and low activity, which can be operated in an air environment high quality non-melting fibers

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