A device for the thermal treatment of yarns comprising at least one inlet opening and at least one outlet opening for at least one transport means, which transports the yarn through the device, and comprising separating elements at the inlet opening and the outlet opening for thermal shielding, in order to minimise the exchange of media to the environment. The separating elements are configured to have a low bending rigidity and are arranged such that a surface load is applied onto the yarn lying on the transport means, for example a conveyor belt, which is not greater than 0.005 kg*cm.sup.2.

A continuous process heat set tunnel for exerting a sealing force against a top sealing roll, a yarn-transporting conveyor and a bottom sealing roll. At least first and second top pneumatic lamella sealing cylinders are mounted on the sealing roll frame for exerting against the top lamella a sealing force against the roll surface of the top sealing roll, and at least first and second bottom pneumatic lamella sealing cylinders are mounted on the sealing roll frame for exerting against the bottom lamella a sealing force against the roll surface of the bottom sealing roll.

The embodiments of the present disclosure provide a composite yarn, a method and a device for processing the composite yarn, and protective equipment. The composite yarn comprises a core filament located at a core of the composite yarn; a first multifilament covering in parallel a peripheral surface of the core filament; a water-based adhesive distributed on a surface and inside of the first multifilament, wherein the water-based adhesive on the surface of the first multifilament forms a water-based adhesive layer; a second multifilament covering in parallel a peripheral surface of the water-based adhesive layer; and a single-clad structure layer or a double-clad structure layer covering an outer side of the second multifilament, wherein both the first multifilament and the second multifilament are organic multifilaments or inorganic multifilaments.

A heating device for producing carbon fibers from a thread-shaped fiber starting material, wherein the heating device has a central tubular induction heating element through which the fiber starting material is moved. The tubular induction heating element is surrounded by thermal insulation. At least one mid- to high-frequency induction coil is provided outside the thermal insulation, and an inert gas flows through the central induction heating element, in particular, for carbonizing and/or graphitizing the fiber starting material. For energy optimization, a first and a second tube element is provided on the outer side of the thermal insulation. The elements are made of material that is transparent to the induction field of the mid- to high-frequency induction coil and are spaced apart from one another by an annular gap through which the inert gas flows.

An oxidation furnace for the oxidative treatment of fibers, in particular for producing carbon fibers, the furnace having a housing with an inner space which is gas-tight apart from areas for the passage of the fibers. A process chamber is located in the inner space of the housing. Guide rollers guide the fibers arranged adjacently as a fiber carpet in a serpentine manner through the process chamber, the fiber carpet spanning respective planes between opposite guide rollers, a partial area of the inner space being defined both above and below said planes. The process chamber extends between a primary blowing device arranged on a blowing end of the housing and a primary suction device, where a primary gas is blown into a partial area by the primary blowing device in such a way that the process gas flows through the process area in a process flow direction. A secondary gas can be blown into the partial area by a secondary blowing device, on the side of the primary blowing device located at a distance from the process chamber, using a flow sealing device.

The subject matter of this invention is a heat distribution management device in a treatment device of wires in movement on a means of transport, said means of transport being able to be traversed by a flow of heat at or through the of orifices, characterized in that the device comprises at least one means of sealing by coverage of at least one part of the orifices of the means of transport, said means of sealing being independent of the means of transport.

The embodiments of the present disclosure provide a composite yarn, comprising: a core filament located at a core of the composite yarn; a first multifilament covering in parallel a peripheral surface of the core filament; a water-based adhesive distributed on a surface and inside of the first multifilament, wherein the water-based adhesive on the surface of the first multifilament forms a water-based adhesive layer; a second multifilament covering in parallel a peripheral surface of the water-based adhesive layer; and a single-clad structure layer or a double-clad structure layer covering an outer side of the second multifilament. The single-clad structure layer includes a short fiber yarn-clad structure layer or a filament-clad structure layer. The double-clad structure layer is a clad structure of short fiber yarns, a clad structure of filaments, or a clad structure of short fiber yarns and filaments. Two layers of clad yarns of the double-clad structure layer are twisted in opposite directions.

The present invention is a mechanism that reverses a product placed between a first upper conveyor belt and a second lower conveyor belt. The first one is linked to at least one cylinder on one end, characterized in that the reversal mechanism contains at least one means for clamping the product placed against the first conveyor belt moving on a portion of the periphery of the cylinder.

The invention relates to an oven for the thermal treatment of filaments, which comprises: an oven body (1) having a height greater than its width, with a first end (1.1) and a second end (1.2); conduction means (2) for conducting the filaments, comprising first rotary supports (2.1) and second rotary supports (2.2) between which the filaments are threaded; a platform (3) on which the conduction means (2) for conducting the filaments are arranged and which is pivotably arranged at the first end (1.1) of the oven body (1); and attachment means (4) attaching the platform (3) to the second end (1.2) of the oven body (1), transferring the movements of the second end (1.2) of the oven body (1) to the platform (3), such that it assures that the filaments remain parallel to one another, preventing them from becoming deformed or from coming into contact with one another

An apparatus for processing yarns includes a first roller set for extending yarn beam; a node generator installed after the first roller set for forming node section of the yarn beam; a first cleaning chamber installed after the node generator for cleaning the yarn beams; a material chamber for adding additive to the yarn beam; a second roller set installed after the material chamber for extending the yarn beam; a first heating chamber installed after the second roller set for thermally setting additives to the yarn beam so that the additives are firmly secured to the yarn of the yarn beam; a third roller set installed after the heating chamber for controlling the heating time of the yarn beam in the first heating chamber; and a fourth roller set installed after the third roller set for winding the yarn beam to a desired shape.