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1. 发明专利

DE60005283D1 未知
公开(公告)号：DE60005283D1
公开(公告)日：2003-10-23
申请号：DE60005283
申请日：2000-12-04
申请人： HITACHI LTD
发明人： NAKAMURA KIYOMI , HIRANE TERUO , UCHIDA TOSHIO , ABE TERUYOSHI
IPC分类号： B22D17/00 , C22C1/00 , C22C23/00 , C22C23/02 , C22C23/04
摘要： An object of the present invention is to provide a high strength Mg based alloy and an Mg based casting alloy having a good fluidity and a good mechanical property, and a molded article using the alloy. A high strength Mg based alloy, which contains 2 to 20 % of Al by weight; 0.1 to 10 % of Zn; 0.1 to 15 % of Sn and 0.05 to 1.5 % of Mn.

2. 发明专利

DE60005283T2 未知
公开(公告)号：DE60005283T2
公开(公告)日：2004-06-24
申请号：DE60005283
申请日：2000-12-04
申请人： HITACHI LTD
发明人： NAKAMURA KIYOMI , HIRANE TERUO , UCHIDA TOSHIO , ABE TERUYOSHI
IPC分类号： B22D17/00 , C22C1/00 , C22C23/00 , C22C23/02 , C22C23/04
摘要： An object of the present invention is to provide a high strength Mg based alloy and an Mg based casting alloy having a good fluidity and a good mechanical property, and a molded article using the alloy. A high strength Mg based alloy, which contains 2 to 20 % of Al by weight; 0.1 to 10 % of Zn; 0.1 to 15 % of Sn and 0.05 to 1.5 % of Mn.

3. 发明专利

JPH1125293A MESH CREATING METHOD 失效
公开(公告)号：JPH1125293A
公开(公告)日：1999-01-29
申请号：JP17677497
申请日：1997-07-02
申请人： HITACHI LTD
发明人： TAKAHASHI ISAMU , UCHIDA TOSHIO , ANZAI KOICHI
IPC分类号： G06F17/50 , G06T17/20
摘要： PROBLEM TO BE SOLVED: To easily perform mesh division with high accuracy even when an analysis object area is an analytical model of plural materials in a complicated shape by performing such processing as to arrange an orthogonal lattice consisting of plural straight lines in a specific area, etc., of an object and combining and connecting an intersection or an intersection moving onto a cross line and a lattice point that does not move. SOLUTION: An analysis object shape inputting part 7a performs a shape input of an analysis object. An orthogonal lattice generating part 7b arranges an orthogonal lattice consisting of plural straight lines which mutually cross in an analysis area. An intersection calculating part 7c finds an intersection of one straight line configuring a boundary and a straight line configuring an orthogonal lattice. A lattice point movement calculating part 7d defines the movement source and movement destination of the lattice point. A lattice point connection calculating part 7e creates analytical mesh of a polygon or a polyhedron by combining and connecting a moved lattice point and a lattice point that does not move. A data outputting part 7f records the number of a node which is necessary for a numeric analysis, its coordinate value, etc.

4. 发明专利

JPH10150751A METHOD AND EQUIPMENT FOR MANUFACTURING CAGE ROTOR 失效
公开(公告)号：JPH10150751A
公开(公告)日：1998-06-02
申请号：JP30821796
申请日：1996-11-19
申请人： HITACHI LTD
发明人： KAYABA NOBUO , TANEDA KOKI , UCHIDA TOSHIO , KUWABARA HEIKICHI , OSONE YASUO , SENOO MASAHARU
IPC分类号： H02K17/16 , H02K15/02
摘要： PROBLEM TO BE SOLVED: To prevent the cracking of short circuit rings even if copper or other material which has a high melting point is used for the conductive material by locally heating only the two projecting portions of an inner wall face of a mold, which faces a cavity necessary for integral molding, for forming a through hole for a motor shaft in each of the two short circuit rings. SOLUTION: Mold blocks 150, 160 are locally heated in advance to make the temperature of the blocks 150, 160 higher than the ambient temperature, and therefore a quality of heat movement from the conductive material to the blocks 150, 160 is smaller than in the conventional device. If the quality of heat movement from the conductive material to the blocks 150, 160 becomes smaller, a quality of thermal expansion of the blocks 150, 160 is lowered by the degree the quality of heat movement becomes small. If the quality of thermal expansion of the blocks 150, 160 becomes smaller, a degree of restriction of the blocks 150, 160 by short-circuit rings 220, 230 becomes small when the conductive material is hardened and the short circuit rings 220, 230 are formed and therefore the cracking of the short circuit rings 220, 230 can be suppressed.

5. 发明专利

JPS62275544A METHOD FOR FORMING AIRFOIL-SHAPED BODY 失效
公开(公告)号：JPS62275544A
公开(公告)日：1987-11-30
申请号：JP11731986
申请日：1986-05-23
申请人： HITACHI LTD
发明人： MORIKAWA MINORU , ANZAI KOICHI , UCHIDA TOSHIO
IPC分类号： B22C7/00
摘要： PURPOSE:To form an airfoil-shaped body having excellent dimensional accuracy by designing a matrix as using the constant factor in the prescribed relational expression, based on assumption, in which a shrinkage of two-dimensional airfoil shape goes toward the center of the max. inscribing circle, in the airfoil shaped body following the volume change. CONSTITUTION:Processes in the design are as follows. 1) The center Q of the max. inscribing circle for the airfoil shape is found. 2) Distances between typical points A-H of the airfoil shape and the center Q1 distances between centers E, F of inlet and outlet end circle arcs for the airfoil shape and A, B points, respectively and typical points A'-H' of the matrix airfoil shape from the factor K are found. 3) The matrix coordinate points J1'-Jn' corresponding to coordinate points J1-Jn for each abutting point of the typical points A-H (except E and F) of the airfoil shape is found from the relational expression. 4) The processes of 1)-3) about plural sections is applied. 5) Distances Z' between the sections to the matrix is found from each distance between the sections of the airfoil shape and the factor K. In this way, the formings at the airfoil center and inlet and outlet ends having high accuracy are obtd. and at the same time, the deformation occurred at each section is prevented.

6. 发明专利

JPS61239602A MANUFACTURE OF HEXAGONAL SYSTEM FERRITE POWDER 失效
公开(公告)号：JPS61239602A
公开(公告)日：1986-10-24
申请号：JP8020285
申请日：1985-04-17
申请人： HITACHI LTD
发明人： ISHIHARA NOBORU , UCHIDA TOSHIO , OGAWA TOSHIO , ERA MASAYUKI , KONDO YASUO
IPC分类号： C01G49/00 , C09D5/23 , C09D7/12 , G11B5/706 , H01F1/11
摘要： PURPOSE:To obtain the vertical magnetic recording medium of high quality by a method wherein a glass forming material is added to the fundamental composition of hexagonal ferrite, they are heated up an formed into fused glass, and the heat treatment is performed on the fused glass at the prescribed temperature, thereby enabling to extract the hexagonal ferrite and to make uniform its grains. CONSTITUTION:Glass forming material is added to the fundamental component of hexagonal ferrite, and fused glass 2 is obtained by heating them up. Said fused glass 2 is dripped between the cooling roll 4 of a manufacturing device and a cooling belt 5 from a crucible 1, and the fused glass is quickly cooled from the fusion temperature to 50 deg.C or below within a second using cooling devices 7 and 8. Then, the glass is heated up to the heating temperature of the hexagonal ferrite using an exfoliating device 9, solidified glass 3 is exfoliated, and hexagonal system ferrite is extracted. Then, the grains of the hexagonal ferrite are made uniform, and the vertical magnetic recording medium of high quality is manufactured.

7. 发明专利

JPS6156711A Work roll for rolling and its manufacture 失效
标题翻译：轧辊及其制造工作辊
公开(公告)号：JPS6156711A
公开(公告)日：1986-03-22
申请号：JP17876284
申请日：1984-08-28
申请人： Hitachi Ltd
发明人： ISHIHARA NOBORU , ERA MASAYUKI , OGAWA TOSHIO , UCHIDA TOSHIO , SHIMOTAMURA OSAMU
IPC分类号： B21B27/00 , C22C37/06 , C22C38/00 , C22C38/24 , C22C38/56
CPC分类号： C22C37/06 , B21B27/00
摘要： PURPOSE:To prevent slip accidents by using a roll constituted of an iron alloy made to contain a carbide of specific vol%, and making a >=prescribed wt% of the carbide have the specific length, width and hardness. CONSTITUTION:An ingot of alloy material, consisting of 1.4-7.0% C, 4.2-20% Cr, 0.32-0.5% Mn, 0.27-0.6% Si, =60wt% of which has a >=1,700HV hardness and the dimensions of 8- 200mm. length and width. Thus, slip accidents are prevented because the projections of the carbide keep a dull surface.
摘要翻译：目的：通过使用由含有特定体积百分比的碳化物制成的铁合金制成的辊来防止滑动事故，使得> =规定的碳化物重量百分比具有特定的长度，宽度和硬度。构成：合金材料锭，由1.4-7.0％C，4.2-20％Cr，0.32-0.5％Mn，0.27-0.6％Si，<= 35％V，<= 0.21％Mo，≤1％ Ni和余量Fe在1,200-1,280℃的范围内加热20-50hr，以分散材料中所含的碳化物。此外，通过将铸锭从900-1100℃油冷却形成辊，并且在锻造和切割之后在200-500℃退火2小时。通过这种方法，轧制合金被制成含有16-52体积％的碳化物，≥60重量％的硬度具有> = 1700HV硬度，尺寸为8-200mm。长度和宽度。因此，由于碳化物的突起保持沉闷的表面，因此防止了滑动事故。

8. 发明专利

JPS5972708A Oil immersed electric apparatus 失效
标题翻译：油电设备
公开(公告)号：JPS5972708A
公开(公告)日：1984-04-24
申请号：JP18290882
申请日：1982-10-20
申请人： Hitachi Ltd
发明人： UCHIDA TOSHIO
IPC分类号： H01F27/12
CPC分类号： H01F27/12
摘要： PURPOSE:To enable to increase overload capacity of an electric apparatus economically and moreover efficiently with a simple device by a method wherein an oil tank is provided at the position higher than an apparatus main body tank, and the tank thereof and the main body tank are connected by pipes provided with valves at the middles. CONSTITUTION:At the point in time when the oil immersed electric apparatus started into overload running, and the temperature of oil or a winding in the main body tank 6 is elevated up to the neighborhood of the allowable value thereof, the valves 2, 3 are opened. When the valves 2, 3 are opened, high temperature oil in the main body tank 6 has low density, and flows in the oil tank 1 through a piping 5, and reversely, oil in the main body tank 6 flows in the main body tank 6 through a piping 4 respectively. Oil in the main body tank 6 is substituted or mixed by oil in the oil tank 1 according to the difference of density of oil, and the temperature of oil in the main body tank 6 is lowered suddenly. Accordingly, the temperature of the winding is also reduced similarly, and moreover, continuation of overload running can be attained.
摘要翻译：目的：为了通过简单的装置能够经济地且有效地增加电气设备的过载能力，其中在高于设备主体箱的位置处设置有油箱，并且其箱体和主体箱是通过在中间设有阀门的管道连接。构成：在油浸式电气设备开始过载运转的时刻，主体箱6内的油或绕组的温度升高到允许值的附近，阀2,3为打开。当阀2,3被打开时，主体箱6中的高温油具有低密度，并且通过管道5在油箱1中流动，反之，主体箱6中的油在主体箱 6分别通过管道4。根据油的密度差，在油箱1中的油被主体油箱6中的油取代或混合，主体箱6内的油温度突然降低。因此，绕组的温度也同样降低，此外，可以实现继续的过载运转。

9. 发明专利

JPS54162625A CORE FOR PRODUCING METAL CAST PRODUCT 失效
公开(公告)号：JPS54162625A
公开(公告)日：1979-12-24
申请号：JP7084278
申请日：1978-06-14
申请人： HITACHI LTD
发明人： HIRANE TERUO , MORIKAWA MINORU , UCHIDA TOSHIO
IPC分类号： B22C9/00

10. 发明专利

JPS53138925A HORIZONTAL CONTINUOUS CASTING MACHINE 失效
公开(公告)号：JPS53138925A
公开(公告)日：1978-12-04
申请号：JP5316877
申请日：1977-05-11
申请人： HITACHI LTD
发明人： HORIGUCHI MINORU , NIIYAMA EISUKE , KODAMA HIDEYO , UCHIDA TOSHIO
IPC分类号： B22D11/04

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