A continuous glass fiber slipperiness testing device and method

Abstract

This application relates to the field of glass fiber performance testing technology, and discloses a continuous glass fiber slippage testing device and method. The device includes a tensile testing machine, linearly arranged yarn guides, a test carriage equipped with friction rollers, a track, a tension block, and a control computer. During testing, one end of the yarn to be tested is connected to the tensile testing machine, passes sequentially through the yarn guides and multiple friction rollers on the test carriage, and the other end is suspended by a tension block to provide constant tension. The computer controls a motor to pull the carriage to slide uniformly along the track, causing continuous relative sliding between the friction rollers and the yarn. The tensile testing machine records the tensile force data during the sliding process in real time and transmits it to the computer. The computer calculates the average tensile force and subtracts the weight of the tension block to obtain the friction resistance difference, thereby determining the yarn slippage. This invention can realistically simulate multi-node friction conditions, eliminate additional resistance errors caused by angular deflection, automate the testing process, and significantly improve the accuracy and objectivity of slippage testing.

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