Method for producing and guiding carbon fiber by using high-temperature carbonization furnace and high-temperature carbonization furnace thereof

Abstract

The invention relates to method for producing and guiding carbon fiber by using a high-temperature carbonization furnace. The method adopts the high-temperature carbonization furnace, and is characterized by comprising the steps of: tying a plurality of carbon fiber graphitized ropes at the back end of a nickel-chromium metal wire which penetrates in from an inlet of the high-temperature carbonization furnace and out from an outlet of the high-temperature carbonization furnace to ensure that the carbon fiber graphitized ropes penetrate the high-temperature carbonization furnace and are detained at two ends of the high-temperature carbonization furnace, subjecting quantitative low-temperature carbon fiber carbonized tows to high-temperature processing of five temperature regions of the high-temperature carbonization furnace at a constant speed to form high-temperature carbonized tows, cutting when the length of the high-temperature carbonized tows guided out from the outlet of the high-temperature carbonization furnace reaches a specified length, and repeating the operations to continuously produce the high-temperature carbonized tows of the carbon fiber, wherein a triangular graphite block beneficial to guiding a traction appliance out of the outlet of the high-temperature carbonization furnace is arranged in a furnace hearth located at one end of the outlet of the high-temperature carbonization furnace. The method is scientific and reasonable, capable of saving the energy, increasing the raw material use rate and reducing the production cost, and capable of realizing efficient and rapid fiber guiding and therefore is high in finished product rate and good in finished product quality.

Description

technical field [0001] The invention relates to a carbon fiber production process and a device thereof, and relates to a high-temperature carbonization furnace carbon fiber production drawing method and a high-temperature carbonization furnace thereof. Background technique [0002] Carbon fiber is one of the high-tech new materials with a wide range of uses. The carbon fiber production process is as follows: the polyacrylonitrile raw silk is transported by the wire feeding mechanism, atomized and drawn through the pre-oxidation furnace with a production temperature of 100-300°C, pre-oxidized in the low-temperature section of 6 temperature zones, and then continues to be atomized. The low-temperature carbonization furnace for pre-oxidized fibers with a production temperature of 400-900°C is used for chemicalization and drawing, and low-temperature carbonized filaments are formed by low-temperature carbonization treatment in 6 temperature zones, and then driven and drawn throu...

AI Technical Summary

Problems solved by technology

Throughout the year, there were losses of millions of yuan, which did not include labor and management costs. Because the existing technology uses metal wires as wire-leading tools for high-temperature carbonization furnace carbon fiber production, a large number of waste carbon fiber wires appeared, resulting in raw materials. , energy waste and economic loss

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