摘要
通过网络喷嘴流场测定和进气孔射流的分析，得知在射流区内可分为较强的周向气流速度分量，使丝束假捻，旋转，同时有稍弱的轴向气流速度分量，使丝束前移形成网络结，其射流核心区长度约为进气孔直径的４．７倍。丝道截面形状推荐为桃形，喷嘴进气孔直径一般为１．１～２．２ｍｍ，丝道长度一般在２０～４５ｍｍ，丝束张力以进丝张力稍低于出丝张力１０％～２０％为宜。
With the analye of air-flow pressure distribution measurement and air jet in the air-inner hole of the interlace nozzles. It can be concluded that in the nozzle:the stronger flow makes filaments turn and false-twist texturing and the weaker flow makes filaments forward and form interlace node. The length of the air jet flow is about 4.7 times of the diameter of feeding of air hole. And it can be recommand that the cross section shape of yarn path be peachlike, the diameter of air jet nozzle be the length of yarn path be 20～45mm,the tention of yarn in be 10%～20% lower than that of yarn out.
出处
《合成纤维工业》
CAS
CSCD
1996年第4期13-17,共5页
China Synthetic Fiber Industry
关键词
喷嘴
丝道
喷射
网络数
网络丝
化学纤维
the nozzle of interlace
yarn path
the air jet
number of interlaces
