Method and apparatus for manufacturing thermoplastic resin extrusion molding

熱可塑性樹脂押出成形品の製造方法および製造装置

Abstract

(57)【要約】 【課題】熱可塑性樹脂の押出成形において、安定した成 形速度でもって円滑な押出しを実現できる熱可塑性樹脂 押出成形品の製造方法および製造装置を提供すること。 【解決手段】溶融押出しされ賦形された熱可塑性樹脂成 形品を、冷却装置内を通過させ冷却する熱可塑性樹脂押 出成形品の製造方法において、濡れ性向上処理が施され た冷却装置の内壁面に、潤滑剤を供給しながら冷却する 熱可塑性樹脂押出成形品の製造方法であって、その製造 装置においては、賦形後の成形品通路となる冷却装置内 壁面に濡れ性向上処理が施されており、かつ冷却装置内 壁面と成形品表面との間に潤滑剤を供給するための供給 口が少なくとも1個備えられている。
PROBLEM TO BE SOLVED: To provide the manufacturing method and apparatus for a thermoplastic resin extrusion molding, with which a smooth extrusion can be realized at a stable molding speed in the extrusion molding of a thermoplastic resin. SOLUTION: In the manufacturing method for the thermoplastic resin extrusion molding, in which the thermoplastic resin molding melt-extruded and shaped is cooled down by being passed through a cooling device, the thermoplastic resin extrusion molding is manufactured by being cooled down under the condition that a lubricant is fed to the inner wall surface, to which a wettability improving treatment is applied, of the cooling device, the wettability improving treatment is applied onto the inner wall surface, which acts as the passage of the molding after being shaped, of the cooling device, and, at the same time, at least one feeding port for feeding the lubricant between the inner wall surface of the cooling device and the surface of the molding is provided. COPYRIGHT: (C)2001,JPO

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