Spinning rotor for an open-end spinning device, comprises a fiber slip wall and a fiber collecting groove that has a first abrasion-reducing surface layer on its interior wall and a second nickel layer applied on the first layer

摘要

The spinning rotor comprises a fiber slip wall (5) and a fiber collecting groove (6) that has a first abrasion-reducing surface layer (8) on its interior wall (4) and a second nickel layer (11) applied on the first layer. The first layer is formed entirely in the area of the fiber collecting groove and is a boride layer, has an average strength of more than 15 mu m and is formed entirely in groove base of the fiber collecting groove. A transition of the first layer exists itself to uncoated surface of the rotor interior wall within the wall of the fiber collecting groove. The spinning rotor comprises a fiber slip wall (5) and a fiber collecting groove (6) that has a first abrasion-reducing surface layer (8) on its interior wall (4) and a second nickel layer (11) applied on the first layer. The first layer is formed entirely in the area of the fiber collecting groove and is a boride layer, has an average strength of more than 15 mu m and is formed entirely in groove base of the fiber collecting groove. A transition of the first layer exists itself to uncoated surface of the rotor interior wall within the wall of the fiber collecting groove. Diamond grits are embedded into the nickel layer. An independent claim is included for a method for coating of spinning rotor.