ALUMINIUM ALLOY PLATE FOR CAN END AND PRODUCTION METHOD THEREFOR

WIPO Patent Application WO/2019/066049

A1

An aluminium alloy plate for a can end according to the present disclosure comprises: an aluminium alloy plate including 4.0–5.5 mass% of Mg, 0.20–0.50 mass% of Mn, 0.10–0.50 mass% of Fe, 0.03–0.30 mass% of Si and a no more than 0.20 mass% of Cu, and the remainder being composed of Al and unavoidable impurities; and an organic resin coating film covering both surfaces of the aluminium alloy plate. In this aluminium alloy plate for a can end, if the surfaces of the organic resin coating film covering one surface and the other surface of the aluminium alloy plate, respectively, are designated as a first surface and a second surface, the dynamic friction coefficient of the first surface and the second surface is 0.01–0.03, inclusive. There is a difference of no more than 20 MPa between the minimum and maximum values for proof stress in the 0° direction, 45° direction and 90° direction with respect to the rolling direction. The R(AVE) calculated from the Lankford value R0, the Lankford value R45, and the Lankford value R90 is no less than 0.5.

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MORI RYOTA (JP)
OKADA MINEMITSU (JP)

PCT/JP2018/036514

April 04, 2019

September 28, 2018

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UACJ CORP (JP)

C22C21/06; B65D8/16; B65D17/34; C22F1/047

WO2016063876A1	2016-04-28
WO2015125791A1	2015-08-27
WO2015119021A1	2015-08-13

JP2006051984A	2006-02-23
JP2002347170A	2002-12-04
JP2001164347A	2001-06-19
JP2009221567A	2009-10-01

NAGOYA INTERNATIONAL PATENT FIRM (JP)

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