Silane chemical cross-linking - warm water cross-linking is carried out by using a polyethylene insulating material with a silane cross-linking agent, and the outer layer-insulating layer-insulating layer is extruded by 1+2 extrusion method, and the cooled plate is cooled. The insulated core is immersed in 85-950C hot water for hydrolysis cross-linking, which affects the water content in the insulating layer due to wet crosslinking. The highest voltage rating is only 10KV. Irradiation cross-linking - physical cross-linking using modified polyethylene insulation, through the 1+2 extrusion method to complete the foreign body layer - insulation layer - after the insulation layer is extruded, the cooled insulation core The cross-linking process is completed uniformly through the irradiation scanning window of the high-energy electron accelerator. Irradiation cross-linked cable material does not add cross-linking. When cross-linking, the high-energy electron beam generated by the high-energy electron accelerator effectively penetrates the insulating layer, and the cross-linking reaction is generated by energy conversion because the electron has high energy and is uniform. Through the insulating layer, the cross-linking bond formed is high in energy and good in stability. The physical properties exhibited are that the heat resistance is superior to that of chemically crosslinked cables. However, due to the limitation of the energy level of the accelerator (the normal thickness of the electron beam is not more than 10mm below 3.0mm, considering the geometric factor, the voltage level of the production cable can only reach 10KV, and the silane cross-linked cable material granulator with the advantage of below 6KV: High mixing machine ------- twin screw granulator -------- shake tank -------- vacuum packaging.
Article from: Plastic sheet extruder
PVC cable material granulator
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