帐篷用牦牛毛/尼龙芯纱复合绳技术开发及其性能研究OA

In response to the problems of poor spinnability,high waste and low utilization of yak hair,as well as the phenomena of high cost,long cycle and low processing level of the existing yak hair rope making technolo-gy,the production process and related equipment technology of single-machine yak wool/nylon core yarn com-posite high-strength fiber rolling rope are developed by studying the traditional wool spinning and traditional rope making technology,combined with the existing rope making technology of hemp and straw.At the same time,the effect of carding on the loss of fiber length and strength is studied,and the distribution of fiber on the core yarn is observed by resin embedding slice technology.The influence of component volume ratio and weight ratio on the performance of sample rope is also discussed,and the spinning effect is tested.The results show that the technology and process of the equipment are suitable for the production and use of yak hair/nylon core yarn composite rope.Rapid and repeated carding will lead to loss of fiber length and strength.There is lit-tle correlation between the packing density of cross section slices and the dividing method.It is observed that the yak hair fiber covered on the core yarn gradually in-creased at first and then gradually decreased,and reached the maximum value in the radial relative position from 9/16 to 12/16.Under the same specifications of core yarns and similar twist conditions,the content of yak hair fiber coated with core yarns has a greater influ-ence on the strength of the composite rope,and the maximum strength is up to 1.6 times compared with that without core yarns.