high twisted yarn,hard twist yarn;hard spun;hard thread

Through analyzing causes coming into being strand torsion of tubal strander and courses of self-elimination of torsion,it is thought that self-elimination of torsion and purposeful pre-torsion of rope and strand during stranding of tubal strander are effective measures to prevent loose and tight strand and it is unsuitable to install turing frame on the rocking frame of tubal strander.

指出钢丝绳生产过程中绳芯松捻的原因是股扭转,对筒式股绳机产生股扭转的原因与扭转自消除的过程进行分析,认为利用筒式股绳机在捻制过程中的扭转自消除及有目的的绳股预扭转是行之有效的防止松捻和紧捻的措施,在筒式股绳机的摇架上不太适合安装翻身机构。