材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
静水圧押出しの工業化
西原 正夫藤田 達山口 喜弘松下 富春野口 昌孝
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1971 年 20 巻 215 号 p. 918-923

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Hereunder is presented a report of construction of a 500ton hydrostatic extrusion press planned for industrial expediency. The press has maximum working pressure 15000kg/cm2, and being composed of two container systems, billet container and pressure container, is especially fit to extrude very long billets. The press was used in an experiment, of which the results are as follows.
At high extrusion speed continuous hydrodynamic lubrication is maintained, which lowers extrusion pressure. At large extrusion ratio, the high extrusion speed softens the products by reason of high temperature generated during the extrusion.

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