Metal mold casting - something impossible

Japanese: 金型鋳物 - かながたいもの
Metal mold casting - something impossible

...Also, a vacuum molding method (V process) has been put into practical use, which does not use any binder at all, but instead uses a thin film attached to the surface of the model to reduce the pressure of the air between the sand grains to create a mold. Metal mold casting is divided into gravity metal casting and die casting. Gravity metal casting is used for casting low-melting-point metals and centrifugal casting, while die casting involves injecting molten metal at a pressure of over one atmosphere, which allows for high dimensional accuracy and the production of thin-walled objects, and is used in cameras and automobile parts, etc. ...

*Some of the terminology used in reference to "permanent die casting" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…また,粘結剤をまったく使わず,模型表面に密着させた薄膜を利用し砂粒間の空気を減圧して造型する減圧造型法(Vプロセス)が実用化されている。 金型鋳物は,重力による金型鋳物とダイカストに分かれる。重力による金型は低融点金属の鋳造,遠心鋳造に用いられ,ダイカストは溶湯を1気圧以上の圧力をかけて噴入させるので,寸法精度が高く,薄肉物の製造も可能で,写真機や自動車部品などはこれによっている。…

※「金型鋳物」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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