Carbon fiber broken filament amount testing device

Abstract

The invention provides a carbon fiber broken filament amount testing device. The carbon fiber broken filament amount testing device comprises a test chamber, a fixing mechanism, a testing mechanism and a control mechanism, wherein the fixing mechanism for fixing the testing mechanism is arranged in the test chamber; the two ends of the fixing mechanism are respectively supported by a supporting frame I and a supporting frame II; the testing mechanism comprises a carbon fiber creel, a porcelain eye, a yarn spreading roller I, a broken filament measuring mechanism, a yarn spreading roller II, a carbon fiber winding mechanism, and a motor; the carbon fiber creel, the porcelain eye and the yarn spreading roller I are sequentially arranged on the fixing mechanism; the broken filament measuring mechanism is arranged between the yarn spreading roller I and the yarn spreading roller II and comprises a portable microscope; the yarn spreading roller II and the carbon fiber winding mechanism are sequentially arranged on the fixing mechanism. The testing device is simple in principle, and low in manufacture, usage and maintenance cost; the testing method is simple, can be operated by testing personnel after quick training, and is safe and efficient in operation process.

Description

technical field [0001] The invention relates to a testing device for carbon fiber fluff quantity. Background technique [0002] Carbon fiber is an advanced material that has received extensive attention from all parties since its birth. It not only has the intrinsic characteristics of carbon materials, but also has the softness and machinability of textile fibers. Its specific gravity is less than 1 / 4 of that of steel, but its strength is much higher than that of steel. The advantages of carbon fiber, such as high strength, high modulus, low density, and small linear expansion coefficient, make it the most promising material. [0003] Carbon fiber is a brittle material. The main reason is that carbon fiber has a higher modulus, which is significantly higher than ordinary glass fiber and Kevlar fiber. That is to say, carbon fiber is better than other fibers in resisting elastic deformation under external force. Based on the above reasons, carbon fiber is more lik...

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Problems solved by technology

This method has a certain degree of advancement and innovation, and provides an effective method for detecting the fluffing of carbon fiber tow, but there are still several major defects, mainly in: the test time is long, the amount of fiber is large; for For fibers with only a very small amount of fuzz, the high-precision balance may not be able to accurately weigh the amount of fuzz produced; the influence of the external environment (mainly temperature and humidity) on the test results is ignored; the collection of fuzz is not complete, and cannot Test the specific number of hairs on the fiber within the range of unit length

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