| 摘要 |
PURPOSE:To produce the titled cable economically, by extrusion-coating the surface of a conductor with silane-grafted polyethylene and effecting its crosslinking reaction by spraying it with (warm) water shower. CONSTITUTION:A conductor W drawn from a delivery reel 1 by a drawing device 2 is surface-coated with a resin composition comprising polyethylene, an organosilane (e.g., vinylmethoxy-silane), an organic peroxide (e.g., dicumyl peroxide) and a silanol condensation catalyst (e.g., dibutyltin dilaurate) by using the first extruder 3. The obtained cable core C is sprayed with (warm) shower 4 to form a coating comprising an organosilane-crosslinked polyethylene on the surface of conductor W. The coated conductor is extrusion-coated at once with polyvinyl chloride sheath by using the second extruder 5. After cooling in a water tank 6, the obtained cable is wound around a winder 8 through a take-up device 7. |
