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1. 发明专利

CA2102951A1 ALUMINUM ALLOY SHEET SUITABLE FOR HIGH-SPEED FORMING AND PROCESS FOR MANUFACTURING THE SAME 未知
公开(公告)号：CA2102951A1
公开(公告)日：1994-05-14
申请号：CA2102951
申请日：1993-11-12
申请人： FURUKAWA ELECTRIC CO LTD , KAWASAKI STEEL CO
发明人： BEKKI YOICHIRO , HAYASHI MINORU , SYOJI RYO
IPC分类号： C22F1/047 , C22C21/06
摘要： The present invention provides an aluminum alloy sheet suitable for high-speed forming at an average strain rate of 0.01 sec-1 or more, produced by using an aluminum alloy containing 4.0 to 10.0 wt.% of Mg, inevitable impurities of Fe and Si whose content is limited to 0.2 wt.% or less, other impurity elements whose content is limited to 0.05 wt.% or less, and the balance of A?, wherein an m-value indicating strain rate sensitivity is -0.001 or less, an average tensile strength value obtained by dividing, by 4, the sum of a ultimate tensile strength in a first direction at 0.degree. to a rolling direction, double a ultimate tensile strength in a second direction at 45.degree. to the rolling direction, and a ultimate tensile strength in a third direction at 90.degree. to the rolling direction is 280 MPa or more, and a maximum difference in the ultimate tensile strength in the first, second and third directions is 5 MPa or more. This invention further provides a process for manufacturing an aluminum alloy sheet suitable for highspeed forming, having the steps of subjecting, to a homogenization treatment at 480.degree.C or above, an aluminum alloy ingot containing 4.0 to 10.0 wt.% of Mg, inevitable impurities of Fe and Si whose content is limited to 0.2 wt.% or less, other impurity elements whose content is limited to 0.05 wt.% or less, and the balance of A?, subjecting the aluminum alloy ingot, which has undergone the homogenization treatment, to a hot rolling process and a cold rolling process, thereby obtaining a cold rolled sheet, and subjecting the cold rolled sheet to an annealing process in which the cold rolled sheet is heated at a temperature of 300 to 450.degree.C at a heating rate of 200.degree.C/h or less and the cold rolled sheet is maintained for six hours or less at the temperature.

2. 发明专利

JPH10130769A AL ALLOY SHEET FOR HIGH SPEED FORMING, ITS PRODUCTION, AND HIGH SPEED FORMING METHOD 失效
公开(公告)号：JPH10130769A
公开(公告)日：1998-05-19
申请号：JP28683096
申请日：1996-10-29
申请人： FURUKAWA ELECTRIC CO LTD , KAWASAKI STEEL CO
发明人： KURAMOTO SHIGERU , HAYASHI MINORU , MATSUMOTO YOSHIHIRO , HASHIGUCHI KOICHI
IPC分类号： C22F1/00 , C22C21/12 , C22F1/057
摘要： PROBLEM TO BE SOLVED: To provide an Al alloy sheet suitable for high speed forming, its production, and a high speed forming method. SOLUTION: This Al alloy sheet for high speed forming has a composition containing (by mass, the same applies to the following) 0.75-0.95% Mg, 0.45-0.95% Si, and 1.3-1.7% Cu as essential elements, containing one or more kinds among 0.02-2.0% Mn, 0.02-0.5% Cr, 0.02-0.3% Zr, and 0.003-0.2% Ti, further containing 0-1.0% Zn, containing =30% in the tensile test of >=5×10 s strain rate and also (tensile strength) /(0.2% proof stress)>=480(MPa) is satisfied.

3. 发明专利

JPH10130768A DIRECTLY CAST AND ROLLED SHEET OF AL-MG-SI ALLOY FOR FORMING, AND ITS PRODUCTION 失效
公开(公告)号：JPH10130768A
公开(公告)日：1998-05-19
申请号：JP28816696
申请日：1996-10-30
申请人： FURUKAWA ELECTRIC CO LTD , KAWASAKI STEEL CO
发明人： KAKIO TETSUSHI , TOTSUGI YOICHIRO , KURAMOTO SHIGERU , HAYASHI MINORU , HASHIGUCHI KOICHI , YUKIMOTO MASAO
IPC分类号： B22D11/00 , B22D11/06 , B22D11/124 , C22C21/06 , C22F1/00 , C22F1/05
摘要： PROBLEM TO BE SOLVED: To obtain an Al-Mg-Si alloy sheet for forming, more inexpensively than heretofore, by means of direct casting and rolling and solution heat treatment. SOLUTION: The directly cast and rolled sheet of an Al-Mg-Si alloy for forming is obtained by applying, if necessary, solution heat treatment to a directly cast and rolled sheet of 0.7 to 3mm thick of an Al alloy which has a composition containing 0.3-2.0% (by mass, the same applies to the following) Mg and 0.3-2.0% Si as essential elements, also containing one or >=2 kinds among 0.02-0.5% Mn, 0.02-0.5% Cr, 0.02-0.3% Zr, and 0.003-0.2% Ti, one or >=2 kinds among 0-2.5% Cu, 0-1.0% Zn, and 0-0.5% Sn, and =18% and the ratio between tensile strength TS and proof stress YS is regulated so that TS/YS>=1.8 is satisfied.

4. 发明专利

JPH10130767A AL-MG-SI ALLOY SHEET WITH HIGH FORMABILITY, AND ITS PRODUCTION 失效
公开(公告)号：JPH10130767A
公开(公告)日：1998-05-19
申请号：JP28814696
申请日：1996-10-30
申请人： FURUKAWA ELECTRIC CO LTD , KAWASAKI STEEL CO
发明人： KAKIO TETSUSHI , TOTSUGI YOICHIRO , KURAMOTO SHIGERU , HAYASHI MINORU , HASHIGUCHI KOICHI , YUKIMOTO MASAO
IPC分类号： B22D11/00 , B22D11/06 , B22D11/124 , C22C21/06 , C22F1/00 , C22F1/05
摘要： PROBLEM TO BE SOLVED: To obtain an Al-Mg-Si alloy sheet suitable for forming, more inexpensively than heretofore, by means of direct casting and rolling, cold rolling, and solution heat treatment. SOLUTION: The sheet is obtained by further applying cold rolling and solution heat treatment to a directly cast and rolled sheet of an Al alloy which has a composition containing 0.3-2.0% (by mass, the same applies to the following) Mg and 0.3-2.0% Si as essential elements, also containing one or >=2 kinds among 0.02-0.5% Mn, 0.02-0.5% Cr, 0.02-0.3% Zr, and 0.003-0.2% Ti, further one or >=2 kinds among 0-2.5% Cu, 0-1.0% Zn, and 0-0.5% Sn, and =20% and the ratio between tensile strength TS and proof stress YS is regulated so that TS/YS>=1.8 is satisfied.

5. 发明专利

JPH10110232A AL-MG-SI ALLOY SHEET AND ITS PRODUCTION 失效
公开(公告)号：JPH10110232A
公开(公告)日：1998-04-28
申请号：JP26823996
申请日：1996-10-09
申请人： FURUKAWA ELECTRIC CO LTD , KAWASAKI STEEL CO
发明人： KURAMOTO SHIGERU , KAKIO TETSUSHI , HAYASHI MINORU , TOTSUGI YOICHIRO , HASHIGUCHI KOICHI , YUKIMOTO MASAO
IPC分类号： B22D11/00 , B22D11/06 , C22C21/02 , C22C21/06 , C22F1/00 , C22F1/05
摘要： PROBLEM TO BE SOLVED: To produce an Al-Mg-Si alloy sheet which is the sheet obtd. by subjecting the directly cast and rolled sheet of an Al-Mg-Si alloy to cold rolling as well and having a small secular change and high age hardenability by the control of the conditions in casting and rolling, cold rolling, heat treatment or the like. SOLUTION: This Al-Mg-Si alloy is the one obtd. by subjecting the directly cast and rolled sheet of an Al alloy having a compsn. contg., as essential elements, by mass, 0.2 to 3.0% Si and 0.2 to 3.0% Mg, one or >= two kinds among 0.01 to 0.5% Mn, 0.01 to 0.5% Cr, 0.01 to 0.5% Zr and 0.001 to 0.5% Ti, furthermore contg. one or >= two kinds among 0 to 2.5% Cu, 0 to 0.2% Sn and 0 to 2% Zn, in which the content of Fe is regulated to

6. 发明专利

JPH08224830A ALUMINUM ALLOY PLATE HAVING EXCELLENT PRESS PROCESSABILITY AND SPOT WELDING PROPERTY, AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH08224830A
公开(公告)日：1996-09-03
申请号：JP17193195
申请日：1995-07-07
申请人： KAWASAKI STEEL CO , FURUKAWA ELECTRIC CO LTD
发明人： UESUGI KOJI , NISHIYAMA NAOKI , IKEDA TOMOMASA , HASHIGUCHI KOICHI , MATSUMOTO YOSHIHIRO , NANBAE MOTOHIRO , KURIHARA MASAAKI , HAYASHI MINORU
IPC分类号： B32B9/00 , B05D7/14 , B32B15/08 , B32B27/18 , C22C21/06 , C23C22/00
摘要： PURPOSE: To provide an organic lubrication resin coating aluminum alloy plate by a method wherein spot welding property of an aluminum alloy plate treated with an organic lubrication resin is remarkably improved without loss of improving effect of excellent press processability of it and these properties are improved to the extent usable even in an existent steel plate manufacturing line. CONSTITUTION: A surface roughness of an aluminum alloy original plate is 0.8μm or less. On the surface of the original plate, a chromate coating of 1.0-20.0mg/m in metal Cr conversion is provided as a first layer. On the upper part thereof, an organic resin coating having 32-60wt.% of an organic lubricant as a second layer is provided as a dry film thickness of 0.05-0.90μm.

7. 发明专利

JPH10102178A DIRECTLY CAST AND ROLLED SHEET OF AL-MG-SI ALLOY, AND ITS PRODUCTION 失效
公开(公告)号：JPH10102178A
公开(公告)日：1998-04-21
申请号：JP25327196
申请日：1996-09-25
申请人： FURUKAWA ELECTRIC CO LTD , KAWASAKI STEEL CO
发明人： KURAMOTO SHIGERU , KAKIO TETSUSHI , HAYASHI MINORU , TOTSUGI YOICHIRO , MATSUMOTO YOSHIHIRO , YUKIMOTO MASAO
IPC分类号： B22D11/00 , B22D11/06 , C22C21/02 , C22C21/06 , C22F1/00 , C22F1/05
摘要： PROBLEM TO BE SOLVED: To obtain a directly cast and rolled sheet of an-Al-Mg-Si alloy minimal in secular change and increased in age hardenability by controlling casting and rolling conditions, heat treatment conditions, etc. SOLUTION: This rolled sheet is a directly cast and rolled sheet of 0.7 to 3mm thick, composed of an Al alloy having a composition which contains, by mass, 0.2-3.0% Si and 0.2-3.0% Mg as essential elements, also contains one or >=2 kinds among 0.01-0.5% Mn, 0.01-0.5% Cr, 0.01-0.5% Zr, and 0.001-0.5% Ti, further contains one or >=2 kinds among 0-2.5% Cu, 0-0.2% Sn, and 0-2% Zn, contains Fe by an amount controlled to

8. 发明专利

JPH07310136A ALUMINUM ALLOY SHEET FOR FORMING AND ITS PRODUCTION 失效
公开(公告)号：JPH07310136A
公开(公告)日：1995-11-28
申请号：JP9880794
申请日：1994-05-12
申请人： FURUKAWA ELECTRIC CO LTD , KAWASAKI STEEL CO , HONDA MOTOR CO LTD
发明人： TOTSUGI YOICHIRO , HAYASHI MINORU , SHOJI SATORU
IPC分类号： C22F1/047 , C22C21/06
摘要： PURPOSE:To improve the strength and formability of an aluminum alloy sheet material used as the forming material of an automotive body sheet, a pressure resistant vessel or the like. CONSTITUTION:An aluminum alloy for forming having a compsn. contg., as essential components, by weight, 4.0 to 10.0% Mg, total 0.01 to 0.5% of one or more kinds among Cr, Zr and Mn, in which the contents of Fe and Si as inevitable impurities are respectively regulated to =30min. Next, it is subjected to >=20% cold rolling to form into a prescribed sheet thickness and is subjected to annealing treatment by heating to 450 to 550 deg.C, immediately, or within 60sec, holding and cooling to =10 deg.C/min rate, by which the average grain size is regulated to 10 to 25mum.

9. 发明专利

JP2001269780A CONTAINER FOR CRYOGENIC LIQUEFIED GAS 失效
公开(公告)号：JP2001269780A
公开(公告)日：2001-10-02
申请号：JP2000086572
申请日：2000-03-27
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , FURUKAWA ELECTRIC CO LTD , NIPPON STEEL CORP
发明人： EGUCHI HARUKI , ISHIGE KENGO , IIDA MASA , TSUCHIYA KAZUYUKI , HAYASHI MINORU , TOTSUGI YOICHIRO , FUJII HIDEKI
IPC分类号： F17C3/00 , B23K20/12 , B23K101/12 , B23K103/10
摘要： PROBLEM TO BE SOLVED: To improve the ductility and the toughness of the welded joint part of a container for cryogenic liquefied gas. SOLUTION: The butt welded joint part of a structure member 3a constituting the container for cryogenic liquefied gas, which is made of an aluminum alloy, especially made of an Al-Mg base alloy, and is used for storing the cryogenic liquefied gas, forms a weld zone 5 by welding along a weld line 6 by friction-stir welding method to be performed by using a tool 7 for welding, having a disk 7a and a probe pin 7b. By the friction-stir welding method, the structure of the welded joint part can be micronized, the generation of a β phase can be suppressed and the ductility and the toughness at a low temperature can be improved. Therefore the strength of the container can be improved.

10. 发明专利

JPH08209281A ALUMINUM ALLOY SHEET EXCELLENT IN FORMABILITY AND ITS PRODUCTION 失效
公开(公告)号：JPH08209281A
公开(公告)日：1996-08-13
申请号：JP3920695
申请日：1995-02-03
申请人： FURUKAWA ELECTRIC CO LTD
发明人： KAKIO TETSUSHI , HAYASHI MINORU , SHOJI SATORU , TOTSUGI YOICHIRO
IPC分类号： C22F1/047 , C22C21/06 , C22F1/00
摘要： PURPOSE: To produce an Al alloy sheet excellent in strength, ductility, appearance after forming and formability by specifying the compsn. constituted of Mg, Cu, Fe, Si, Mn, Cr, Ti, Zr and Al and optimizing the grain size. CONSTITUTION: In an Al alloy sheet having a compsn. contg., as essential components, by weight, 4.0 to 10.0% Mg or furthermore contg. 0.1 to 0.5% Cu, contg. impurities in the range of ftot =Fe+Si+1.1Mn+1.1Cr+3Ti+3 Zr =480 deg.C, thereafter executing hot rolling, subjecting the same to cold rolling under the conditions shown by the inequalities of I and II in accordance with the sheet thickness t1a before the cold rolling and subsequently subjecting it to annealing treatment of executing holding at 480 to 550 deg.C for 0 to 60sec and executing cooling to =10 deg.C/sec cooling rate.

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