Carbon fiber laser graphitizing sizing equipment and method

Abstract

The invention discloses carbon fiber laser graphitizing sizing equipment and method. The equipment is mainly composed of a silk releasing device, a drafting device A, a gas seal end cover, a graphitizing furnace body, a coating machine head, an extruder, a drying device, a drafting device B and a silk collecting device. The devices are sequentially arranged, the gas seal end cover is fixed to theleft end of the graphitizing furnace body through a bolt, the right end of the graphitizing furnace body is connected with the sizing coating machine head, the side face of the coating machine head isconnected with the small extruder, and the drying device, the drafting device B and the silk collecting device are sequentially mounted on the right side of the coating machine head. An outlet of a graphitizing furnace is directly connected with the coating machine head, inert gas sealing on the outlet is omitted, and the use amount of argon is saved. An extruded sizing agent has uniform and dense texture and is tightly attached to the surfaces of fibers, due to sizing in the pressure environment, the skinning performance of the sizing agent is better than the soaking effect in a sizing agenttank, skin films on the surfaces of the fibers are denser, and the performance of a prepared composite is improved.

Description

technical field [0001] The invention relates to the field of carbon fiber graphitization processing and manufacturing, in particular to a carbon fiber laser graphitization sizing equipment and a carbon fiber laser graphitization sizing method. Background technique [0002] Carbon fiber is an inorganic polymer fiber material with a carbon content higher than 90%. Because it has excellent mechanical properties, high strength, high modulus, electrical and thermal conductivity, low density, and small thermal expansion coefficient, it is widely used in national defense, military, In aerospace, civil construction, sporting goods and other fields, carbon fiber is graphitized at a high temperature of 2000-3000 °C in an inert gas to further remove elements such as N in carbon fiber, and further enrich carbon elements, with a carbon content of up to 99%. After graphitization, the arrangement of graphite crystallites is more regular, the size of the crystallites increases, the interlay...

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Problems solved by technology

[0006] In order to solve the problems that the existing sizing agents are various, the sizing process is easily affected by air pollution, the sizing is uneven, the fiber opening is poor, and the sizing process lags behind, and it is easy to cause broken filaments before sizing, the present invention proposes a method that can not only improve It is adaptable to different types of sizing agents, and can improve the quality of fiber sizing and ensure the wear resistance, fiber opening and production efficiency of fibers and methods and equipment

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