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1. 发明专利

JPH06182437A PRODUCTION OF DAMPING METALLIC DOUBLE PIPE 失效
公开(公告)号：JPH06182437A
公开(公告)日：1994-07-05
申请号：JP35639192
申请日：1992-12-21
申请人： FURUKAWA ALUMINIUM
发明人： SHIROSHITA HIDENORI , MATSUOKA KEN , SASAKI KATSUTOSHI
IPC分类号： B21C37/06 , B23P11/00 , B32B15/08 , F16L9/02
摘要： PURPOSE:To perform the adhesion of an inner and outer pipe of a damping metallic double pipe with a simple process without the use of a plastic working and to effectively produce a damping metallic double pipe that is superior in bending workability. CONSTITUTION:In the manufacture of the damping metallic double pipe having a damper resin 3 interposed between the inner pipe 1 and the outer pipe 2, the inner pipe 1 which is coated on the outer surface with a liquid damper resin having a viscosity of 300 to 2,000cst is inserted into the outer pipe 2 in a heated state, and then, by the contraction of the outer pipe as the temperature goes down, the inner pipe 1 and the outer pipe 2 are adhered closely with each other through the damper resin 3, of which the thickness of the resin layer is to be 0.05 to 0.5mm.

2. 发明专利

JPH05339757A 失效
公开(公告)号：JPH05339757A
公开(公告)日：1993-12-21
申请号：JP17027992
申请日：1992-06-03
申请人： FURUKAWA ALUMINIUM
发明人： UENO SEIZO , MATSUOKA KEN , EDA YOSHIYA
IPC分类号： B22F1/00 , C22C1/05 , C23F1/36
摘要： PURPOSE:To etch an Al powdery alloy containing Si with excellent working efficiency without decreasing quality of the powdery alloy by using a specified alkali aq. soln. CONSTITUTION:When surface contamination of machine parts due to powder of Al alloy containing Si or burrs produced by machining are to be removed by etching, such an alkali aq. soln. is used that has pH>=10 and contains at least one of sodium hydroxide, sodium carbonate, sodium phosphate, etc., and a surfactant if necessary. By this method, interfaces between the Al alloy powder containing Si and the matrix CSi grains or Si compd. are selectively etched, and thereby, etching can be performed with excellent surface quality of the parts without dropping of Si grains or Si compd. from the surface of the machine parts.

3. 发明专利

JPH0570909A MANUFACTURE OF HIGH STRENGTH AND HIGH FORMABILITY ALUMINUM ALLOY PIPE 失效
公开(公告)号：JPH0570909A
公开(公告)日：1993-03-23
申请号：JP26283391
申请日：1991-09-13
申请人： FURUKAWA ALUMINIUM
发明人： ARA CHIAKI , SAKOTA SHOICHI , MATSUOKA KEN
IPC分类号： C22C21/06 , C22F1/00 , C22F1/05
摘要： PURPOSE:To provide a method for manufacturing a high strength and high formability aluminum allay pipe uniting symmetric alternation characteristics of strength and formability required for the uses for car cooler piping and hydraulic pressure piping contg. power steering. CONSTITUTION:In the process of subjecting the ingot of an aluminum alloy contg., by weight, 0.3 to 0.6% Si, 0.4 to O.6% Mg,

4. 发明专利

JPH0565606A PRODUCTION OF EXTRUDED SHAPE OF ALUMINUM ALLOY EXCELLENT IN RESISTANCE WELDABILITY 失效
公开(公告)号：JPH0565606A
公开(公告)日：1993-03-19
申请号：JP25450091
申请日：1991-09-05
申请人： FURUKAWA ALUMINIUM
发明人： MATSUOKA KEN
IPC分类号： C22F1/04 , C22F1/00 , C23C8/12
摘要： PURPOSE:To improve the spot weldability of an extruded shape of aluminum alloy to be subjected to resistance welding, particularly spot welding, such as automobile frame and rail material. CONSTITUTION:The extruded shape of aluminum alloy excellent in resistance weldability can be produced by controlling, at the time of extruding an aluminum alloy shape, the thickness of oxide film on the surface to =250 deg.C by means of inert gas or blowing liquid nitrogen against the extruded shape to cool it down to

5. 发明专利

JPH04176835A ALUMINUM ALLOY EXCELLENT IN WEAR RESISTANCE 失效
公开(公告)号：JPH04176835A
公开(公告)日：1992-06-24
申请号：JP30304990
申请日：1990-11-08
申请人： FURUKAWA ALUMINIUM
发明人： MATSUOKA KEN
IPC分类号： C22C21/00
摘要： PURPOSE:To obtain an Al alloy having superior plastic workability and excellent in wear resistance by specifying a composition consisting of B, Mn, Fe, Cu, Mg, Cr, Ti, Zr, and Al and also dispersing B or its compound finely and uniformly. CONSTITUTION:This alloy is an Al alloy which consists of, by weight, 0.02-1.0% B, 0.05-2.0% Mn, further one or more kinds among 0.05-1.5% Fe, 0.05-2.0% Cu, 0.05-1.5% Mg, 0.03-0.5% Cr, 0.01-0.5% Ti, and 0.03-0.5% Zr, and the balance Al with inevitable impurities and in which B or its compound with a size of =10pieces per square centimeter and superior wear resistance is provided. This Al alloy can be suitably used, e.g. for magnet roller for copying machine. Moreover, the above alloy has superior plastic workability and enables thin wall porthole extrusion, and the necessity of surface treatment, such as anodizing treatment, can be obviated.

6. 发明专利

JPH04147845A COMPOSITE PIPE OF ALUMINUM OR ALUMINUM ALLOY WITH OSCILLATION-DAMPING PROPERTIES AND ITS MANUFACTURE 失效
公开(公告)号：JPH04147845A
公开(公告)日：1992-05-21
申请号：JP27294590
申请日：1990-10-11
申请人： FURUKAWA ALUMINIUM
发明人： MATSUOKA KEN , SASAKI KATSUTOSHI
IPC分类号： B21C37/06 , B21C1/00 , B21C1/22 , B32B15/08
摘要： PURPOSE:To obtain an aluminum pipe with high oscillation reduction properties by constituting the pipe with an outer pipe and an inner pipe and allowing a resin layer with larger than a specified size of thickness to be present between the outer and the inner pipe. CONSTITUTION:A composite pipe of aluminum alloy is composed of an outer 1 and an inner pipe 2, and a resin layer 3 with a thickness of 10mum or larger is present between the outer pipe 1 and the inner pipe 2. The resin has generally oscillation damping properties. The composite pipe is superior in terms of oscillation damping properties. The recommended resins are, for example, polyurethane, polypropylene, polyethylene, etc., unless the resin layer is at least, 10mum or larger thick, adequate oscillation damping properties cannot be obtained. For the manufacture of the pipe, resin is coated on the outer surface of the inner pipe 2, while the outer pipe 1 is coated to obtain a composite pipe, and the tip of the composite pipe is spouted. Next, the spouted tip is held by tongs 4 through a die 5 and pulled out through the die 5 and a plug 6 so that the outer pipe, the resin layer and the inner pipe are combined in one piece. The composite pipe is superior in terms of size precision and surface accuracy and demonstrates aluminum properties.

7. 发明专利

JPH0466637A ALUMINUM ALLOY FOR HEAT EXCHANGER 失效
公开(公告)号：JPH0466637A
公开(公告)日：1992-03-03
申请号：JP17876690
申请日：1990-07-06
申请人： FURUKAWA ALUMINIUM
发明人： OKITA TOMIHARU , MATSUOKA KEN , ARA CHIAKI
IPC分类号： C22C21/00
摘要： PURPOSE:To offer an Al alloy for a heat exchanger provided with good extrudability, rollability and workability as well as excellent strength, pitting resistance and weld cracking resistance by specifying the content of Mn, Cu, Ag, Fe, Si or the like. CONSTITUTION:The above alloy essentially consisting of, by weight, 0.20 to 0.7% Mn, 0.05 to 0.7% Cu, 0.03 to 0.5% Ag and 0.1 to 1.0% Fe+Si as well as >2 Fe/Si, furthermore contg. one or more kinds among 0.005 to 0.2% Ti, 0.0001 to 0.08% B, 0.01 to 0.25% Zr and 0.03 to 0.2% Cr and the balance Al with inevitable impurities is prepd. Even is 0.03 to 0.5% Ag in the above compsn. is substituted by 0.03 to 0.5% Ni or 0.03 to 0.5% misch metal or rare earth elements, the same effect can be obtd.

8. 发明专利

JPH0413840A HIGH STRENGTH ALUMINUM ALLOY FOR WELDING EXCELLENT IN STRESS CORROSION-CRACKING RESISTANCE 失效
公开(公告)号：JPH0413840A
公开(公告)日：1992-01-17
申请号：JP11601290
申请日：1990-05-02
申请人： FURUKAWA ALUMINIUM
发明人： OKITA TOMIHARU , MATSUOKA KEN , KATO KAZUMI , MURATA FUJIO
IPC分类号： C22C21/10
摘要： PURPOSE:To improve the stress corrosion-cracking resistance, strength, and weldability of an aluminum alloy by adding specified amounts of Au, V and rare earth elements or misch metal to an Al-Zn-Mg-Cu series alloy. CONSTITUTION:The compsn. of a high strength Al alloy for welding is formed of, by weight, 5 to 8% Zn, 1.2 to 4.0% Mg, 1.5 to 4.0% Cu, 0.03 to 1.0% Au, 0.03 to 5.0% rare earth elements or misch metal, 0.01 to 1.0% Fe, 0.005 to 0.2% Ti, 0.01 to 0.2% V, and the balance Al with inevitable impurities. Furthermore, one or more kinds among 0.01 to 1.5% Mn, 0.06 to 0.1% Cr, 0.01 to 0.25% Zr, 0.0001 to 0.08% B, and 0.03 to 0.5% Mo are incorporated therein. This alloy has high strength as the material for welded structures and excellent in formability in extruding, rolling, forging or the like.

9. 发明专利

JPH0413831A HIGH STRENGTH ALUMINUM ALLOY FOR WELDING EXCELLENT IN STRESS CORROSION CRACKING RESISTANCE 失效
公开(公告)号：JPH0413831A
公开(公告)日：1992-01-17
申请号：JP11600390
申请日：1990-05-02
申请人： FURUKAWA ALUMINIUM
发明人： OKITA TOMIHARU , MATSUOKA KEN , KATO KAZUMI , MURATA FUJIO
IPC分类号： C22C21/10
摘要： PURPOSE:To improve the stress corrosion cracking resistance, strength, and weldability of an aluminum alloy by adding trace amounts of rare earth elements or misch metal to an Al-Zn-Mg-Cu series alloy. CONSTITUTION:The compsn. of a high strength Al alloy for welding is formed of, by weight, 5 to 8% Zn, 1.2 to 4.0% Mg, 1.6 to 4.0% Cu, 0.03 to 5.0% rare earth elements or misch metal, 0.01 to 1.0% Fe, 0.005 to 0.2% Ti, 0.0001 to 0.08% B, 0.01 to 0.2% V, and the balance Al with ineviatable impurities. Furthermore, at least one or more kinds among 0.01 to 1.5 Mn, 0.01 to 0.6% Cr, 0.01 to 0.25% Zr, and 0.03 to 0.5% Mo are incorporated therein. Rare earth elements or misch metal improve its stress corrosion cracking resistance and weld cracking resistance. This alloy has high strength as the material for welded structures and excellent in formability in extruding, rolling, forging or the like.

10. 发明专利

JPH02236081A CORROSION RESISTING ALUMINIUM PIPING MATERIAL WITH ROLLED THREAD AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH02236081A
公开(公告)日：1990-09-18
申请号：JP5199689
申请日：1989-03-06
申请人： FURUKAWA ALUMINIUM , WATANABE IND
发明人： MATSUOKA KEN
IPC分类号： F16L9/02 , B21H3/02 , F16L15/00
摘要： PURPOSE:To permit the restrain of degradated corrosion resistance by coating Zn on the surface of a hot extruded pipe made of aluminium alloy and forming a rolled thread at the pipe end. CONSTITUTION:An aluminium-alloy pipe 1 is manufactured with hot extrusion using an aluminium-alloy billet, and on the surface of the alloy pipe 1 Zn is flame-injected and coated by an arc type frame injector. Then, a rolled thread 2 is formed at the end of the aluminium-alloy pipe 1 by using a pipe taper thread roller. As a result, it is possible to obtain a pipe of great excellence in corrosion resistance and strength.

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