Casting method

Japanese: キャスティング法 - きゃすてぃんぐほう
Casting method

…(9) Polyimide (polyamide-imide) film. Excellent heat resistance and electrical properties. Used as circuit boards for precision flexible printed wiring, and incorporated into small computers, cameras, watches, etc.
[Molding method]
There are several methods for forming plastic films, such as casting, in which a polymer solution is extruded into a coagulating liquid and solidified, as in cellophane, and calendaring, in which a polymer is mixed with plasticizers and additives, sent between rolls, and repeatedly heated and rolled (calendered) to form a film, as in polyvinyl chloride film (Figure 1). However, the most common method is melt extrusion. There are two types of melt extrusion: the inflation method and the T-die method, which are described below.

*Some of the terminology that refers to the "casting method" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…(9)ポリイミド(ポリアミドイミド)フィルム 耐熱性,電気特性にすぐれ,精密フレキシブルプリント配線の回路基板として用いられ,小型計算機,カメラ,時計などに組み込まれている。
[成形法]
 プラスチックフィルムの成形法としては,セロハンのように,ポリマー溶液を凝固液中に押し出して固化させるキャスティング法casting,ポリ塩化ビニルフィルムなどのように,ポリマーに可塑剤,添加剤を加えて混合し,これをロール間に送って加熱圧延(カレンダーがけ)をくりかえしフィルム化するカレンダー法calendering(図1)などがあるが,最も一般的な方法は溶融押出法である。溶融押出法には次に述べるインフレーション法とT‐ダイ法がある。…

※「キャスティング法」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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