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1. 发明专利

JP2002273598A ALUMINUM ALLOY CLAD MATERIAL 失效
公开(公告)号：JP2002273598A
公开(公告)日：2002-09-25
申请号：JP2001078157
申请日：2001-03-19
申请人： KOBE STEEL LTD
发明人： OKAMOTO HITOSHI , TAKEZOE OSAMU
IPC分类号： B23K1/00 , B23K1/19 , B23K35/28 , B32B15/01 , C22C21/00
摘要： PROBLEM TO BE SOLVED: To provide an aluminum alloy clad material having a brazing filler metal layer and having good brazing property and high strength. SOLUTION: The aluminum alloy clad material is provided with a first layer 1 consisting of Al-Si-base brazing filler metal and a second layer 2 of >=50 μm in thickness consisting of an aluminum alloy containing >=0.2 mass% Mg and is provided with a third layer 3 containing 0.2 to 3.5 mass% Mg.

2. 发明专利

JP2002273597A BRAZING SHEET MADE OF ALUMINUM ALLOY FOR NON-CORROSIVE FLUX BRAZING 失效
公开(公告)号：JP2002273597A
公开(公告)日：2002-09-25
申请号：JP2001074258
申请日：2001-03-15
申请人： KOBE STEEL LTD
发明人： OKAMOTO HITOSHI , TAKEZOE OSAMU
IPC分类号： F28F21/08 , B23K1/00 , B23K1/20 , B23K35/28 , B23K101/14 , C22C21/00
摘要： PROBLEM TO BE SOLVED: To provide a brazing sheet made of an aluminum alloy for non- corrosive flux brazing which is capable of additionally improving strength while maintaining solderability. SOLUTION: Second and third aluminum alloy layers 2 and 3 are respectively formed on the different surfaces of a first aluminum alloy layer 1 and a brazing filler metal layer 4 containing Si is formed on the surface of the second aluminum alloy layer. The first aluminum alloy layer contains 0.4 to 1.0 mass% Mg, 0.4 to 1.0 mass% Si and 0.3 to 1.0 mass% Mn or contains 0.8 to 1.5 mass% Mg, 4.5 to 6.5 mass% Zn and 0.3 to 1.0 mass% Mn. The second and third aluminum alloy layers contain 0.3 to 1.3 mass% Si, 0.3 to 1.0 mass% Cu and 0.3 to 1.5 mass% Mn and is regulated in the Mg content to

3. 发明专利

JP2002001574A BRAZING SHEET MADE OF ALUMINUM ALLOY AND MANUFACTURING METHOD THEREFOR 失效
公开(公告)号：JP2002001574A
公开(公告)日：2002-01-08
申请号：JP2000185336
申请日：2000-06-20
申请人： KOBE STEEL LTD
发明人： SAISHO SUSUMU , TSURUNO AKIHIRO , TAKEZOE OSAMU , UEDA TOSHIKI , NOMURA MASAHIRO
IPC分类号： B23K35/22 , B23K35/40 , C22C21/00 , C22F1/00 , C22F1/04
摘要： PROBLEM TO BE SOLVED: To provide a brazing sheet made of aluminum alloy, excellent in formability and erosion resistance, without damaging corrosion resistance even in the case of a thin-walled material. SOLUTION: The composition of the brazing sheet made of aluminum alloy is taken as a three-layered structure composed of a heartwood 1 made of an Al-Mn base alloy and brazing filler metal 3 made of an Al-Si base alloy and formed on both sides of the heartwood 1. The heartwood 1 has the average crystal grain size of 50 μm or less in a cross section in a direction perpendicular to the rolling direction thereof and a cladding ratio of 50% or more. A prestrain of 1-5% is imparted to the brazing sheet. Additionally, one piece of the metal 3 can be taken as a sacrificial layer 2.

4. 发明专利

JP2001340989A ALUMINUM ALLOY BLAZING SHEET HAVING SUPERIOR FORMABILITY AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2001340989A
公开(公告)日：2001-12-11
申请号：JP2000162840
申请日：2000-05-31
申请人： KOBE STEEL LTD
发明人： SAISHO SUSUMU , TSURUNO AKIHIRO , TAKEZOE OSAMU
IPC分类号： B23K35/22 , B23K35/28 , B23K35/40 , C22C21/00 , C22F1/00 , C22F1/04
摘要： PROBLEM TO BE SOLVED: To provide an aluminum alloy brazing sheet having superior formability without impairing the anticorrosive characteristic. SOLUTION: The aluminum alloy brazing sheet having superior formability is formed by three layers consisted of a core material 1 containing Al-Mn alloy, and a brazing filler material 3 containing Al-Si alloy in which the brazing filler material is arranged on both sides of the core material. The core material 2 contains less than and equal to 50 μm of an average crystal grain in size in a crossed section perpendicular to a rolling direction, and its cladding ratio is not less than 50%. By the way, one of the brazing filler materials 3 can be used as a sacrificed layer 2. After clothing the brazing materials 3 onto both sides of the core material 1, the brazing sheet is produced by cooling down at a temperature reduction rate not less than 50 deg.C/min while maintained less for than 20 seconds, or shorter after rapidly heating at a temperature increasing rate not less than 1 deg.C/sec within a range 380 deg.C to 530 deg.C in a final annealing process.

5. 发明专利

JPH10211818A ALUMINUM ALLOY-MADE AUTOMOBILE REINFORCING MEMBER 失效
公开(公告)号：JPH10211818A
公开(公告)日：1998-08-11
申请号：JP3842098
申请日：1998-02-20
申请人： KOBE STEEL LTD
发明人： YAMASHITA HIROYUKI , TAKEZOE OSAMU
IPC分类号： B60J5/00
摘要： PROBLEM TO BE SOLVED: To provide an aluminum alloy-made automobile member whereby sufficient strength is provided as a reinforcing member to attain lightening of weight, also shock resistance can be improved. SOLUTION: In a reinforcing member 1, in a bottom/upper surface thereof, respectively a flange 4, 5 is provided, the upper/bottom surface flange 5, 4, conforming a lengthwise direction thereof, are connected by a pair of webs 3. In a cross sectional shape of the reinforcing member 1, the bottom surface flange 4 is provided so as to be longer than the upper surface flange 5. Consequently, in the cross sectional shape of the reinforcing member 1, by deviating a point of the center of gravity to a side of the flange 4, when tensile stress is received to a side of the flange 4, rupture displacement can be increased. In the reinforcing member 1 with a total length of the flange L, in an upper/side surface thereof, respectively in a region respectively at least except a region to 0.17L toward both end parts from the lengthwise direction center, an elliptic and circular hole 2 is drilled.

6. 发明专利

JPH046239A HIGH STRENGTH ALUMINUM ALLOY EXCELLENT IN BRAZABILITY 失效
公开(公告)号：JPH046239A
公开(公告)日：1992-01-10
申请号：JP10837890
申请日：1990-04-24
申请人： KOBE STEEL LTD
发明人： TAKEZOE OSAMU , ARII YASUTAKA , MIYAGAMI AKIRA , YAGI INEKI
IPC分类号： C22C21/10
摘要： PURPOSE:To obtain an Al alloy excellent in brazability, having high strength and furthermore excellent in corrosion resistance and cold forgeability by specifying the compsn.constituted of Mg, Zn, Mn, Cu,Ti, Zr, Fe, Si and Al. CONSTITUTION:This is a high strength Al alloy contg., by weight, 0.15 to 0.5% Mg, > 3.0 to 7.0% Zn and 1.0 to 2.0% Mn, furthermore contg. at least one kind among 0.1 to 0.4% Cu, 0.005 to 0.2% Ti and 0.01 to 0.2% Zr, in which =65.

7. 发明专利

JPH0310087A LOW LUSTROUS ALUMINUM ALLOY MEMBER AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0310087A
公开(公告)日：1991-01-17
申请号：JP14255389
申请日：1989-06-05
申请人： KOBE STEEL LTD
发明人： YAGI INEKI , TAKEZOE OSAMU
IPC分类号： C23C22/66
摘要： PURPOSE:To produce a low lustrous Al alloy member having low surface luster and superior corrosion resistance by immersing an Al alloy member in an aq. NaOH soln. contg. a Ca salt. CONSTITUTION:A mixed aq. soln. contg. CaCl2 and NaOH is heated to about 70 deg.C and an Al alloy member is immersed in the soln. The surface of the member is etched by the NaOH, an oxide coating film on the surface is dissolved and the surface luster is lost. An Al-Ca compd. is formed on the etched surface and renders high hardness and corrosion resistance. A corrosion preventive coating film having low luster is easily formed on the surface of the Al alloy member.

8. 发明专利

JPH02254129A ALUMINUM ALLOY FOR GRAY NATURAL COLORATION 失效
公开(公告)号：JPH02254129A
公开(公告)日：1990-10-12
申请号：JP7455489
申请日：1989-03-27
申请人： KOBE STEEL LTD
发明人： YAGI INEKI , TAKEZOE OSAMU , HARA TOSHIHISA
IPC分类号： C25D11/14 , C22C21/00 , C22C21/02
摘要： PURPOSE:To prevent the generation of filiform corrosion in pretreatment of Al alloy to anodizing by preparing an Al alloy contg. specified ratios of Si, Fe, Mg and Cu, subjecting it to anodizing treatment and manufacturing the Al alloy for gray natural coloration. CONSTITUTION:The Al alloy contg., by weight, >0.8 to 3.0% Si, 0.2 to 0.6% Fe, 0.2 to 0.6% Mg, 0.01 to 0.1% Cu and the balance Al with inevitable impurities is prepd. In this way, at the time of subjecting the Al alloy to pretreatment of degreasing, soda etching, water washing, acid neutralizing and water washing before executing anodizing treatment, in the pretreatment, filiform corrosion is not generated, by which the Al alloy developed into gray having a reduced touch of yellow and slightly tinged with blue can be obtd.

9. 发明专利

JPH02236251A CORROSION-RESISTANT ALUMINUM ALLOY AND ITS MANUFACTURE 失效
公开(公告)号：JPH02236251A
公开(公告)日：1990-09-19
申请号：JP5456189
申请日：1989-03-07
申请人： KOBE STEEL LTD
发明人： HARA TOSHIHISA , TAKEZOE OSAMU
IPC分类号： C22F1/04 , C22C21/00 , C22F1/00
摘要： PURPOSE:To manufacture the high strength corrosion-resistant Al alloy having excellent extrudability and corrosion resistance by subjecting an ingot of an Al alloy having specified compsn. constituted of Mn, Cr and Al and in which the contents of Si and Fe are regulated to specified homogenizing treatment. CONSTITUTION:The molten metal of an Al alloy having the compsn. contg., by weight, 0.3 to 0.7% Mn and 0.05 to 0.2% Cr, furthermore contg., at need, 0.1 to 0.25% Cu or contg. 0.1 to 0.6% Cu and 0.05 to 0.2% Cr and the balance Al with inevitable impurities and in which the contents of the impurity elements are regulated to

10. 发明专利

JPH01283338A FREE-CUTTING ALUMINUM ALLOY FOR HOT FORGING 失效
公开(公告)号：JPH01283338A
公开(公告)日：1989-11-14
申请号：JP11286088
申请日：1988-05-10
申请人： KOBE STEEL LTD
发明人： AIURA SUNAO , TAKEZOE OSAMU
IPC分类号： C22C21/06 , C22C21/08 , C22C21/12
摘要： PURPOSE:To obtain the title Al alloy having excellent machinability, hardenability and cold aging characteristics by adding specific amounts of Mg to an Al-Cu alloy or furthermore adding other elements thereto. CONSTITUTION:Cu, 1-5%, by weight, and 0.2-2.0% Mg and at least one kind among the three elements of 0.2-2.0% Pb, 0.2-2.0% Bi and 0.2-1.0% Sn are incorporated to Al, or furthermore 0.05-2.0% Si or at least one kind among 0.02-0.3% Ti, 0.05-0.3% Zr and 0.05-0.3% Cr are independently incorporated thereto to manufacture the round bar of Al alloy. The free-cutting Al alloy material for hot forging sufficiently executable of solution heat treatment even at the low temp. of 350-450 deg.C hardening temp. and furthermore having excellent cold aging characteristics can be obtd.

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