3. Extruder
The extruder is an essential component of the cable production line. It can be used in a "conventional" manner or for reactive extrusion (foaming, cross-linking). In "conventional" use, its function is to convey, melt, homogenize, and pressurize the insulating material. For the two cable-specific extrusion processes—foaming and cross-linking—it is also used as a chemical reactor. The reasons for using these specific processes stem from the specific characteristics required for cables. For data transmission, the signal propagation speed depends on the cable’s dielectric constant; for power transmission cables, higher mechanical strength at higher temperatures is required.
3.1 Description of the single-screw extruder
The vast majority of cable insulation and...
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Extruder
Different types of heads and dies
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