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Traction equipment in cable cladding technology

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  • 23/04/2018

Traction equipment in cable cladding technology Traction machines, sometimes called winches, often have tension measuring devices. The production line consists of a wire rack, the first winch, a preheater, a die, a cooling groove spark tester, a second winch, and a winding device. The supplied wire is a metal wire. The supply device is usually a two-roll device. On this side, when a reel is taken out, the second reel comes along the track of the first reel and the molding is continued. The …

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Cable coating technology

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  • 20/04/2018

Cable coating technology There are two kinds of copper and aluminum cores, and the diameter of a single core is 1.76 mm, 2.24 mm, and 2.73 mm, respectively. The proportion of the plastic coating and the core material used varies with the thickness of the coating layer and the core diameter. The wire diameters of the above three types of wire cores coated with PVC plastic are 3.0 mm, 3.6 mm, and 4.3 mm, respectively. Wait. The composition of the cable production line: The cable is an impo…

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Cable material and its variety

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  • 19/04/2018

Cable material and its varietyCable material refers to the plastic used for the insulation and sheathing of cables. Commonly used plastics include PVC, PE, PP, PA and fluorine plastics.PVC cable materialWide variety of PVC cable materials, widely used. The voltage resistance and insulation resistance of PVC cable materials are relatively high, but the dielectric constant and dielectric loss are large. By adding special additives or modifiers, heat-resistant (105C), cold-resistant, oil-resistant f…

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Wire and cable extrusion coating technology

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  • 18/04/2018

Wire and cable extrusion coating technology Plastic wire and cable (hereinafter referred to as "cable") refers to a cable using plastic as an insulating layer and a jacket layer. There are many varieties of plastic cables. The basic structure of plastic cables is to use plastic as an insulating layer on the outside of copper and aluminum wire cores. Some of the conductive cores consist of a single wire, and some of them have been twisted together according to certain requireme…

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Coated extrusion device

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  • 17/04/2018

Coated extrusion device(1) Extrusion: With an extruder with a mixing screw, the screw aspect ratio varies depending on the type of plastic. The head used is a hanger type head. The baffle in the nose adapter has a mixing effect. However, the presence of a baffle will increase the shear rate, increase the heat, break the macromolecular chains, and decompose the material. Therefore, use of the baffle should be careful.(2) Forming: The melted film extruded from the slit of the head shrinks in the wi…

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The main process of coating

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  • 16/04/2018

The main process of coating1. Unwinding: Always keep proper tension when unwinding the substrate. In order to stabilize the composite extrusion, edge control systems are used to detect the end of the substrate in pneumatic or photocell mode.2. Tacking of the substrate: In order to allow good adhesion between the substrate and the melt extruded plastic film, active groups are required on the surface of the substrate. Substrates such as paper and fabrics can impart radical activity through heat tre…

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