摘要:
A flyer bow for wire bunching or wire stranding machines has an inner flank on which is introduced longitudinally and centrally a tube which is formed of a wear-resistant material and which acts as an integrated wire guide. This results in the flyer bow having a compact construction, uniform wire guidance and an easy exchangeability of the parts subjected to wear due to the friction of the wires.
摘要:
Multilayer composite for combustion chambers or nozzles of missiles, comprising an interior layer in contact with the combustion gases and an outer layer, wherein the interior layer is a fiber-reinforced ceramic whose matrix comprises phases of carbon and/or phases of silicon carbide and the outer layer is a polymer reinforced with carbon fibers, process for producing the same and combustion chambers and nozzles for missiles made of this composite.
摘要:
A fiber-reinforced composite body containing a first zone made of a ceramic matrix, which predominantly contains silicon carbide and, optionally, silicon and/or carbon and/or compounds thereof, and containing a second zone, which is located on a surface of the ceramic matrix zone and formed form a fiber-reinforced C/SiC ceramic. The fiber length decreases from the exterior of the fiber-reinforced ceramic zone up to the first zone and, optionally, up to one or more other zones that are arranged on the second zone. A method for producing the composite body is characterized by involving a joint infiltration at least of the first zone and of the second zone with liquid silicon and by the carrying out of a siliconization. A composite body of this type can be used, in particular, as armoring in the civil or military sectors.
摘要:
A fiber-reinforced composite body containing a first zone made of a ceramic matrix, which predominantly contains silicon carbide and, optionally, silicon and/or carbon and/or compounds thereof, and containing a second zone, which is located on a surface of the ceramic matrix zone and formed form a fiber-reinforced C/SiC ceramic. The fiber length decreases from the exterior of the fiber-reinforced ceramic zone up to the first zone and, optionally, up to one or more other zones that are arranged on the second zone. A method for producing the composite body is characterized by involving a joint infiltration at least of the first zone and of the second zone with liquid silicon and by the carrying out of a siliconization. A composite body of this type can be used, in particular, as armoring in the civil or military sectors.
摘要:
Multilayer composite for combustion chambers or nozzles of missiles, comprising an interior layer in contact with the combustion gases and an outer layer, wherein the interior layer is a fiber-reinforced ceramic whose matrix comprises phases of carbon and/or phases of silicon carbide and the outer layer is a polymer reinforced with carbon fibers, process for producing the same and combustion chambers and nozzles for missiles made of this composite
摘要:
A flyer bow for wire bunching or wire stranding machines has an inner flank on which is introduced longitudinally and centrally a tube which is formed of a wear-resistant material and which acts as an integrated wire guide. This results in the flyer bow having a compact construction, uniform wire guidance and an easy exchangeability of the parts subjected to wear due to the friction of the wires.