| 摘要 |
A hollow guide shaft body around which fibres whirl by an action of a whirling airflow in an air-jet spinning device (5) and in which a fibre passage (39) is formed where the fibres pass after being twisted by the whirling airflow. The hollow guide shaft body (32) includes a base member (50) having electrical conductivity, preferable stainless steel, and an external layer (51) provided on a surface of the base member (50), and being harder than the base member (50). Preferably the external layer (51) is a diamond-like carbon (DLC) coating . The use of a conductive base member in combination with a abrasion resistant external coating provides a hollow guide shaft with a smaller diameter and being wear resistant compared to a hollow guide shaft consisting of sintered ceramics. Moreover, an air-jet spinning device (5) and a yarn winding machine comprising such a hollow guide shaft body is disclosed. |
