PROCESS FOR PRODUCING ALUMINUM ALLOY PLATE AND ALUMINUM ALLOY PLATE

Title:

PROCESS FOR PRODUCING ALUMINUM ALLOY PLATE AND ALUMINUM ALLOY PLATE

Document Type and Number:

WIPO Patent Application WO/2007/135838

Kind Code:

A1

Abstract:

A process for aluminum alloy plate production which has excellent productivity and in which the control of surface state and flatness is easy and plate thickness precision is improved; and an aluminum alloy plate. The following steps are conducted in the following order: a melting step (S1) in which an aluminum alloy containing a given amount of Mn and further containing at least one of Si, Fe, Cu, Mg, Cr, Zn, and Ti in a given amount, the remainder being Al and unavoidable impurities, is melted; a hydrogen gas removal step (S2) in which hydrogen gas is removed from the aluminum alloy melted in the melting step (S1); a filtration step (S3) in which inclusions are removed from the aluminum alloy from which hydrogen gas has been removed; a casting step (S4) in which the aluminum alloy from which inclusions have been removed is cast to produce an ingot; and a slicing step (S6) in which the ingot is sliced into a given thickness.

Inventors:

KOBAYASHI KAZUNORI
TOKUDA KENJI
KATO TOMOHARU
INABA TAKASHI

Application Number:

PCT/JP2007/058963

Publication Date:

November 29, 2007

Filing Date:

April 25, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

KOBE STEEL LTD (JP)
KOBAYASHI KAZUNORI
TOKUDA KENJI
KATO TOMOHARU
INABA TAKASHI

International Classes:

C22B21/06; B22D1/00; C22B9/02; C22B9/05; C22C21/00; C22C21/02; C22C21/06; C22F1/04; C22F1/00

Foreign References:

JP2000265232A	2000-09-26
JP2004306139A	2004-11-04
JPS6126741A	1986-02-06
JP2003027167A	2003-01-29
JPS5669345A	1981-06-10
JPS61227142A	1986-10-09
JPS5669347A	1981-06-10
JP2005344173A	2005-12-15
JP2002146447A	2002-05-22

Other References: