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1. JP2017186641 - ALUMINUM ALLOY SHEET AND MANUFACTURING METHOD OF ALUMINUM ALLOY SHEET

Office
Japan
Application Number 2016213789
Application Date 31.10.2016
Publication Number 2017186641
Publication Date 12.10.2017
Grant Number 6306123
Grant Date 16.03.2018
Publication Kind B2
IPC
C22C 21/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
02with silicon as the next major constituent
C22C 21/06
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
06with magnesium as the next major constituent
C22F 1/05
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04of aluminium or alloys based thereon
05of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
C22F 1/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
CPC
C22C 21/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
02with silicon as the next major constituent
C22C 21/08
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
06with magnesium as the next major constituent
08with silicon
C22C 21/12
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
12with copper as the next major constituent
C22F 1/05
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04of aluminium or alloys based thereon
05of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
C22C 2202/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
2202Physical properties
Applicants KOBE STEEL LTD
株式会社神戸製鋼所
Inventors SHISHIDO HISAO
宍戸 久郎
KITAMURA TOMOYUKI
北村 智之
Agents 天野 一規
藤本 勝誠
池田 義典
小川 博生
石田 耕治
藤中 賢一
Priority Data 2016067007 30.03.2016 JP
Title
(EN) ALUMINUM ALLOY SHEET AND MANUFACTURING METHOD OF ALUMINUM ALLOY SHEET
(JA) アルミニウム合金板及びアルミニウム合金板の製造方法
Abstract
(EN)

PROBLEM TO BE SOLVED: To provide a 6000 series aluminum alloy sheet having good moldability and high BH property even after long time room temperature aging or galling coating curing treatment at high temperature.

SOLUTION: In a differential scanning thermal analysis curve of an Al-Mg-Si-based aluminum alloy sheet having a specific composition with total content of Mg and Si of over 1.2%, an endothermic peak with a height A of 3-10 μW/mg in a temperature range of 150-230°C and an exothermic peak with a height B of 20-50 μW/mg in a temperature range of 230°C or more and less than 330°C exist so that a ratio of peak heights B/A is in a specific range, and moldability and galling coating curability are made to be excellent.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2018,JPO&INPIT


(JA)

【課題】長時間の室温時効後や高温での焼付け塗装硬化処理であっても、良好な成形性と高いBH性とを兼備させた6000系アルミニウム合金板を提供する。
【解決手段】MgとSiとの合計含有量が1.2%超である特定の組成のAl−Mg−Si系アルミニウム合金板の示差走査熱分析曲線において、150〜230℃の温度範囲内に高さAが3〜10μW/mgである吸熱ピークと、230℃以上、330℃未満の温度範囲内に高さBが20〜50μW/mgである発熱ピークとを、これらの互いのピーク高さの比B/Aが特定の範囲となるように存在させて、成形性と焼付塗装硬化性に優れさせる。
【選択図】図1