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51. 发明专利

JPH0413830A HIGH STRENGTH ALUMINUM ALLOY FOR WELDING EXCELLENT IN STRESS CORROSION CRACKING RESISTANCE 失效
公开(公告)号：JPH0413830A
公开(公告)日：1992-01-17
申请号：JP11600290
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, and the balance Al with inevitable 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.

52. 发明专利

JPH0413829A HIGH STRENGTH ALUMINUM ALLOY FOR WELDING EXCELLENT IN STRESS CORROSION CRACKING RESISTANCE 失效
公开(公告)号：JPH0413829A
公开(公告)日：1992-01-17
申请号：JP11600190
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 Ag, V or the like to an Al-Zn-Mg-Cu series ally. 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% Ag, 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, at least one or more kinds among 0.001 to 1.5% Mn, 0.01 to 0.6% Cr, 0.01 to 0.25% Zr, 0.0001 to 0.08% B and 0.03 to 0.5% Mo are incorporated therein. Ag and V improve its stress corrosion cracking resistance. This alloy has high strength as the material for welded structures and excellent in formability in extruding, rolling, forging or the like.

53. 发明专利

JPH03177681A ALUMINIUM ALLOY MADE PNEUMATIC PIPING FOR ROLLING STOCK 失效
公开(公告)号：JPH03177681A
公开(公告)日：1991-08-01
申请号：JP31862989
申请日：1989-12-07
申请人： FURUKAWA ALUMINIUM , WATANABE IND
发明人： MATSUOKA KEN , WATANABE TAKASHI
IPC分类号： F16L9/02
摘要： PURPOSE:To prevent the production of a corrosion product in rolling stock pneumatic piping providing with a connecting screw at its pipe terminal part by forming the piping of an Al alloy containing specific weight percent of Mg and the rest of Al and impurity. CONSTITUTION:In alluminium alloy made pneumatic piping for rolling stock, piping is formed of an Al alloy containing Mg 1.5-3.5 wt% and the rest of Al and usual impurity. A connecting screw such as a rolled thread is formed at a pipe terminal part. The piping can be also formed by containing one kind or more than two kinds within the range of Mg 1.5-3.5 wt.%, Mn 0.05-0.5 wt.%, Cr 0.05-0.5 wt.%, and Zr 0.05-0.25 wt.%. As a result, a corrosion product is not produced, thereby preventing the plugging accident of pneumatic piping.

54. 发明专利

JPH0328343A ALUMINUM ALLOY FOR PHOTOSENSITIVE DRUM OF COPYING MACHINE 失效
公开(公告)号：JPH0328343A
公开(公告)日：1991-02-06
申请号：JP16329089
申请日：1989-06-26
申请人： FURUKAWA ALUMINIUM
发明人： ISHII HIROSHI , MATSUOKA KEN
IPC分类号： C22C21/06
摘要： PURPOSE:To prevent the surface exposure of crystallized products and to secure the electrical smoothness on the surface of an Al matrix by specifying the contents of Mg, Cu, Fe and Si and regulating the maximum grain size of the crystallized products in an Al alloy. CONSTITUTION:The compsn. of the alloy is formed from, by weight, 0.6 to 1.5% Mg, 0.02 to 0.5% Cu,

55. 发明专利

JPH02200769A PRODUCTION OF AL-BASE HIGH DAMPING MATERIAL 失效
公开(公告)号：JPH02200769A
公开(公告)日：1990-08-09
申请号：JP2027389
申请日：1989-01-30
申请人： FURUKAWA ALUMINIUM
发明人： SHOJI SATORU , TAKABAYASHI ATSUO , MATSUOKA KEN
IPC分类号： C23C10/28
摘要： PURPOSE:To produce a lightweight high damping material excellent in workability as well as in vibration damping property by applying galvanizing to the surface of Al or Al alloy, subjecting the resulting galvanizing layer to homogenizing treatment at specific temp. and then to cooling, and forming a Zn-Al alloy layer of specific thickness. CONSTITUTION:The surface of Al or Al alloy is galvanized. As to the above galvanizing, it is preferable to form a plating layer of >= about 5mum thickness by means of electroplating or hot dipping. Subsequently, homogenizing treatment is applied to the above galvanizing layer at 275-420 deg.C, preferably about 300-400 deg.C, followed by cooling. As the above cooling, rapid cooling by means of water cooling, etc., is preferred. By the above treatment, a Zn-Al alloy layer having a thickness of >=10mum thickness, preferably >= about 20mum, and consisting of a fine eutectoid structure of Zn and Al is formed on the surface layer. By this method, the lightweight Al-base high damping material excellent in workability and having superior vibration damping property can be obtained.

56. 发明专利

JPH02165812A MANUFACTURE OF DUPLEX TUBE 失效
公开(公告)号：JPH02165812A
公开(公告)日：1990-06-26
申请号：JP31942888
申请日：1988-12-20
申请人： FURUKAWA ALUMINIUM , FURUKAWA ELECTRIC CO LTD
发明人： MATSUOKA KEN , HENMI HIDEO
IPC分类号： B21C37/06 , B29D23/00 , B32B15/08
摘要： PURPOSE:To easily join the outside peripheral surface of a plastic tube to the inside peripheral surface of a metal tube by inserting a plastic tube into a metal tube and cold-drawing the metal tube. CONSTITUTION:A crosslinked-polyethylene tube 1 is inserted into an aluminum alloy tube 2 to make a duplex tube and their and 3 is pointed in that situation as it is. Then, the duplex tube is inserted into a drawing die 4; a plug 5 of a prescribed diameter supported by a plug rod 6 is inserted into the tube 1 of an inner tube, and then the pointed part 3 is pinched by tongs 7 and cold drawing is performed. As the result, the number of stages is reduced, a time and heating for drying are eliminated, uniform tight adhesion is obtained, and further a ling-sized tube is producible.

57. 发明专利

JPH0277550A FREE-CUTTING ALUMINUM ALLOY FOR FORMING AND ITS PRODUCTION 失效
公开(公告)号：JPH0277550A
公开(公告)日：1990-03-16
申请号：JP22646288
申请日：1988-09-12
申请人： FURUKAWA ALUMINIUM
发明人： MATSUOKA KEN , KISHINO KUNIHIKO
IPC分类号： C22F1/04 , C22C21/10 , C22F1/00
摘要： PURPOSE:To obtain an Al alloy material excellent in strength, formability, and machinability by subjecting an ingot of Al alloy with a specific composition to homogenizing treatment by heating, to hot extrusion or to hot extrusion and cold drawing, and further to solution heat treatment. CONSTITUTION:An ingot of an Al alloy having a composition consisting of, by weight, 0.5-2.0% Si, 0.01-0.5% Fe, 0.05-1.5% Cu, 0.1-1.5% Mg, 0.5-2.5% Zn, 0.001-0.2% Ti, 0.05-1.5% Pb, 0.05-2.0% Sn, and the balance Al is heated to undergo homogenizing treatment, by which Si, Cu, Mg, Zn, etc., are sufficiently diffused into a matrix metal and also Fe which is allowed to enter into solid solution to supersaturation is finely precipitated. The above ingot is finished into product size by means of hot extrusion or hot extrusion and cold drawing. Successively, the above material is heated and held at 450-590 deg.C and water- cooled to undergo solution heat treatment, by which free-cutting Al-alloy parts excellent in formability can be produced.

58. 发明专利

JPS63223149A PRODUCTION OF ALUMINUM PIPE FOR PHOTOCONDUCTIVE MEMBER 失效
公开(公告)号：JPS63223149A
公开(公告)日：1988-09-16
申请号：JP5588587
申请日：1987-03-11
申请人： FURUKAWA ALUMINIUM
发明人： MATSUOKA KEN
IPC分类号： B21C9/00 , C22F1/00 , C22F1/04
摘要： PURPOSE:To produce an Al pipe having less generation of deformation and pinholes even when high temp. vapor deposition is executed to the pipe, by applying a heat treatment at a specific temp. after the final cold drawing at the time of subjecting an Al ingot to hot extrusion, annealing and cold drawing. CONSTITUTION:The Al or Al alloy ingot is subjected to the hot extrusion and annealing, and the cold drawing or cold drawing and intermediate annealing are executed to the ingot to form the Al pipe. At that time, the heat treatment is executed to said ingot at >=250 deg.C after the final cold drawing to uniformize the residual stress difference. The Al pipe for a photoconductive member in which the generation of the deformation and pinholes can be prevented even when the vapor deposition is executed to the pipe at >=250 deg.C is thereby obtd.

59. 发明专利

JPS63197957A COMPOSITE ALUMINUM PIPE FOR PHOTOSENSITIVE DRUM OF COPYING MACHINE 失效
公开(公告)号：JPS63197957A
公开(公告)日：1988-08-16
申请号：JP2957387
申请日：1987-02-13
申请人： FURUKAWA ALUMINIUM
发明人： MATSUOKA KEN
IPC分类号： G03G5/10
摘要： PURPOSE:To obtain high surface accuracy at a relatively low cost by constituting only the surface of a titled pipe of a aluminum alloy formed by using high- purity aluminum base metal or high-purity aluminum. CONSTITUTION:A surface layer 2 consisting of any among an Al-Mn alloy, Al-Mg-Si alloy and Al-Mg alloy formed by using the aluminum alloy base metal having >=99.9% purity is provided on the outside peripheral face of a pipe base body 1 consisting of an ordinary aluminum alloy for which the high- purity aluminum base metal is not used. The use of high-purity aluminum having 99.9% purity in addition to the alloy for the surface layer 2 is also possible. Thee prescribed strength and high surface accuracy are thereby obtd. and the cost is reduced by about half.

60. 发明专利

JPS63183159A MANUFACTURE OF EXPANDED MATERIAL OF WEAR-RESISTANT FREE-CUTTING ALUMINUM ALLOY 失效
公开(公告)号：JPS63183159A
公开(公告)日：1988-07-28
申请号：JP1220287
申请日：1987-01-23
申请人： FURUKAWA ALUMINIUM
发明人： ISHII HIROSHI , MATSUOKA KEN
IPC分类号： B21C1/00 , B21C23/00 , C22C21/02 , C22F1/04
摘要： PURPOSE:To manufacture the titled expanded material without adding free- cutting components of low-m.p. metals, by subjecting an Al-Si alloy with a specific composition to soaking treatment, extrusion, solution heat treatment, and cold drawing, in succession, under specific conditions. CONSTITUTION:An ingot of an Al alloy consisting of, by weight, 6-14% Si, 0.1-1.0% Fe, 1.0-3.0% Cu, 0.05-0.2% Mn, 0.2-1.5% Mn, 0.05-0.5% Cr, 0.05-1.0% Ni, and the balance Al is prepared. This ingot is successively subjected to soaking treatment at 450-520 deg.C for >=4hr, extrusion at 300-500 deg.C, solution heat treatment at 470-525 deg.C, and cold drawing at 3-30% draft. In this way, a wear-resistant Al alloy combining superior machined-surface roughness with corrosion resistance, further improved in chip treatability, and excellent in machinability can be obtained.

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