…Metal extrusion was first carried out in 1797 using a mechanical piston to produce lead pipes. The main pressure device used in extrusion is a long-stroke hydraulic press, which was first used to extrude lead pipes in 1867, and the German Dick G.A. Dick developed the modern extruder in 1894. After lead, copper and copper alloy rods, tubes, and shapes were extruded, and aluminum and its alloys, the 20th century metal, were used as construction materials around 1960, and rods and shapes were produced by extrusion. … *Some of the terminology that mentions "Dick, GA" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…金属の押出しは,初め1797年に機械的ピストンを用いて鉛を対象として鉛管を製造するために行われた。押出しの際に主として用いられる加圧装置は長行程の液圧プレスであるが,この液圧プレスが初めて鉛管の押出しに適用されたのは1867年で,近代的な押出機としての形をまとめたのはドイツ人ディックG.A.Dickであり,94年のことであった。鉛に次いで銅,銅合金の棒,管,形材の押出しが行われるようになり,20世紀の金属であるアルミニウムとその合金は1960年ごろ建設材料として実用化されると同時に押出しにより棒材や形材が製造されるようになった。… ※「Dick,G.A.」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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