University of Khartoum

THE THEORY OF TWISTING THE ROVING IN THE SPEED FRAME

THE THEORY OF TWISTING THE ROVING IN THE SPEED FRAME

Show full item record

Title: THE THEORY OF TWISTING THE ROVING IN THE SPEED FRAME
Author: Abdel- Latief Mohammed, Salaheldin
Abstract: An analysis was carried out only on t he qualitative aspects of the phenomena of twisting the roving in the speed frame. The results of this simple analysis modified the conclusions reached earlier t hat the twist in the roving portion between the drafting system and the fl yer head consists of two components, named real twist and false twist. This work furnished grounds for the stat ement that the twist in the zone referred to consists of four components namely, real twist t a, false twist t f, pushed-back twist t c , and additional false twist t p arising as a result of the roving assuming the shape of space curv e as it pass through the flyer hole, each of different source of origin. Fu rthermore, it was found that the methods of threading the roving through the flye r head will either increase or decrease the number of turns of twist before or after the flyer head. Also it was shown that the false twist t p that created in the roving portion between the drafting system and t he flyer head when using right-hand threading can be utilized to strengthen the fi bre assembly in that zone to meet technological requirements dur ing production processes
URI: http://hdl.handle.net/123456789/6640
Date: 2008-03


Files in this item

Files Size Format View

This item appears in the following Collection(s)

Show full item record

Share

Search DSpace


Browse

My Account