B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
B21C 23/24 (2006.01) B21C 23/10 (2006.01) B21C 23/14 (2006.01) C22F 1/04 (2006.01)
Patent
CA 2117448
Disclosure is a method for producing a cryostatic stabilizer composed of high-purity aluminum which comprises extruding the high-purity aluminum at an extrusion temperature of 250 to 500~C, an extrusion speed of not more than 20 m/min and an extrusion ratio of 10 to 150 by using an extruding machine equipped with a cylindrical die having helical grooves or projections on the inner surface. The method is industrially advantageous.
Hasegawa Masahiro
Takahashi Akihiko
Yasuda Hitoshi
Fetherstonhaugh & Co.
Sumitomo Chemical Co. Ltd.
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