Title:
アルミニウム合金厚板の製造方法およびアルミニウム合金厚板
Document Type and Number:
Japanese Patent JP4231529
Kind Code:
B2
Abstract:
Disclosed is a method for producing an aluminum alloy thick plate, which is characterized by sequentially performing, in the following order, a melting step (S1) wherein an aluminum alloy consisting of a predetermined amount of Mg, at least one of Si, Fe, Cu, Mn, Cr, Zn, Ti and Zr, and the balance of Al and unavoidable impurities; a hydrogen gas removing step (S2) wherein a hydrogen gas is removed from the melted aluminum alloy; a filtering step (S3) wherein inclusions are removed from the aluminum alloy from which a hydrogen gas is removed; a casting step (S4) wherein an ingot is produced by casting the aluminum alloy from which inclusions are removed; a slicing step (S5) wherein an aluminum alloy thick plate having a predetermined thickness is produced by slicing the ingot; and a heat treatment step (S6) wherein the aluminum alloy thick plate having a predetermined thickness is heat-treated by being maintained at a temperature not less than 400 DEG C but less than the melting point for 1 or more hours.
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Inventors:
Kazunori Kobayashi
Kenji Tokuda
Tomoharu Kato
Takashi Inaba
Kenji Tokuda
Tomoharu Kato
Takashi Inaba
Application Number:
JP2007095419A
Publication Date:
March 04, 2009
Filing Date:
March 30, 2007
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
C22B21/06; B22D1/00; B22D21/04; B22D43/00; C22B9/02; C22B9/05; C22C1/02; C22C21/00; C22C21/02; C22C21/06; C22C21/10; C22F1/04; C22F1/00
Domestic Patent References:
| JP2000265232A | ||||
| JP2004306139A | ||||
| JP2007077486A | ||||
| JP2007051310A | ||||
| JP2007077472A | ||||
| JP2194152A |
Attorney, Agent or Firm:
Isono Dozo
Etsuo Tada
Tetsuo Tomita
Etsuo Tada
Tetsuo Tomita