| 摘要 |
#CMT# #/CMT# The upper roller cover (1) or fiber guide belt for yarn-producing plants, comprises a core (5) containing plastic, and a cover layer (10), which is completely disposed on the core, consists of layers of nano-oxide ceramic, nano-nitride ceramic, nano-carbide ceramic and nano-boride ceramic and has a thickness of less than 40 nm. Different cover layers are disposed on an inner lateral surface of the core and on an outer lateral surface of the core. An intermediate layer is partially disposed on the core, and contains layers of nano-oxide ceramic, nano-nitride ceramic and nano-carbide ceramic. #CMT# : #/CMT# The upper roller cover (1) or fiber guide belt for yarn-producing plants, comprises a core (5) containing plastic, and a cover layer (10), which is completely disposed on the core, consists of layers of nano-oxide ceramic, nano-nitride ceramic, nano-carbide ceramic and nano-boride ceramic and has a thickness of less than 40 nm. Different cover layers are disposed on an inner lateral surface of the core and on an outer lateral surface of the core. An intermediate layer is partially disposed on the core, and consists of layers of nano-oxide ceramic, nano-nitride ceramic, nano-carbide ceramic and nano-boride ceramic. The intermediate layer is different from the cover layer. The thickness of the intermediate layer is less than 40 nm. The core contains nanoparticles of nano-oxide ceramic, nano-nitride ceramic, nano-carbide ceramic and nano-boride ceramic. The diameter of the nanoparticle is less than 40 nm. An independent claim is included for a method for producing an upper roller cover or fiber guide belt. #CMT#USE : #/CMT# Upper roller cover or fiber guide belt for yarn-producing plants such as ring-spinning machines. #CMT#ADVANTAGE : #/CMT# The upper roller cover or fiber guide belt can be simply and economically produced with high tensile strength, enhanced abrasion resistance, excellent friction conditions, high wear resistance and constant frictional ratios. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The diagram shows a cross-sectional view of an upper roller cover with completely disposed cover layer. 1 : Upper roller cover 5 : Core 10 : Cover layer. #CMT#INORGANIC CHEMISTRY : #/CMT# Preferred Components: The cover layer consists of carbon, sulfur, iron and/or copper. The nano-oxide ceramic comprises aluminum oxide, titanium dioxide, titanium oxide, zirconium oxide, silicon dioxide, silicon oxide, zinc oxide, magnesium oxide, beryllium oxide, chromium (III) oxide and/or indium oxide. The nano-nitride ceramic comprises aluminum nitride, titanium nitride, titanium carbon nitride, silicon nitride, tantalum nitride, gallium nitride, boron nitride, indium nitride and/or chromium nitride. The nano-carbide ceramic comprises aluminum carbide, titanium carbide, zirconium carbide, bromine carbide, niobium carbide, tungsten carbide, tantalum carbide, hafnium carbide, vanadium carbide, chromium carbide and/or carbon. The nano-boride ceramic comprises aluminum boride, titanium boride, zirconium boride and/or hafnium boride. The intermediate layer consists of metals or metal alloy such as chromium-nickel-alloy. The core contains carbon, sulfur, metal and/or metal alloy, which consists of copper, iron, copper-alloys and/or iron-alloys. |
