…In particular, finishing rolling mills for wire rods have several sets of rolling rolls built into the same housing and are sometimes called block mills. Tandem rolling mills for rolling tube production include mandrel mills, which bite into the mandrel to elongate the tube, and sizers, which are used to narrow the outside diameter of the tube. Rolling mills for intermediate finishing of shapes and wire rods have been designed to be independent or to create a slack (loop) of material between the rolling mills, since the cross-sectional shape of the product can be distorted if unexpected tension is applied to the material during rolling, so that tension is not applied for a long period of time. … *Some of the terminology that mentions "mandrel mill" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…とくに線材の仕上げ圧延機は,同一のハウジングに数組の圧延ロールが組み込まれており,ブロックミルblock millと呼ばれることがある。圧延製管法でのタンデム方式の圧延機には,芯金(マンドレル)ごとかみ込んで管を延伸するマンドレルミルmandrel millや,管の外径を細める目的のサイザー(定径機)と呼ばれるものがある。 形材や線材の中間仕上げ用の圧延機は,圧延中に材料に予期しない張力が作用すると製品の断面形状が狂うので,長い間張力が作用するおそれのないように独立の圧延機か,圧延機間に材料のたるみ(ループ)をつくるような方法がとられてきた。… ※「mandrel mill」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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