摩擦周期对腈纶纱线磨损形貌的影响OA

To investigate the wear state and morphology change characteristics of acrylic yarn,a self-made yarn friction performance test device was used to carry out wear test on acrylic yarn,and the image processing means were used to recognize,characterize and quantitatively analyze the image of acrylic yarn after wearing.The results showed that with the increase of friction cycle,the proportion of acrylic yarn in the binary graph,the pixel value of yarn diameter and the pixel value of hairiness length all showed a trend of first increasing then decreasing.For acrylic yarn with fiber diameter of 20 μm,the proportion of yarn and the pixel value of hairiness length were reached the maximum when the friction cycles was 60,were 11.02％and 394 pixels respectively.When the friction cycles was 80,the pixel value of yarn diameter was reached the maximum value of 96 pixels.With the increase of friction process,the degree of wear was strengthened,and the body of yarn in the friction area was wrapped by more and more fiber hairiness,resulting in increase of yarn diameter.When the friction cycle was increased further,the fiber hairiness around the yarn fell off,and then the diameter of yarn and the length of fiber hairiness were decreased.It is considered that the change of yarn evenness,the number of hairiness and its state can provide theoretical analysis basis for evaluating its mechanical properties and the performance of related products,which is conducive to monitoring the wear performance of yarn and evaluating the operation state of components.