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1. 发明专利

JPS6064721A SURFACE TREATMENT METHOD OF HOT ROLLED STEEL STRIP 失效
公开(公告)号：JPS6064721A
公开(公告)日：1985-04-13
申请号：JP17260583
申请日：1983-09-19
申请人： HITACHI LTD , HITACHI KIKAI ENG
发明人： NAKAGAWA YUUSAKU , MIURA YUUJI , SUWA MASATERU , KOYAMA TETSUO , KUBOTA RIYUUJI
IPC分类号： B21B45/06
摘要： PURPOSE:To remove easily and effectively the scales on the surface of a hot rolled steel strip by bringing a moving grinding-member into sliding contact with the surface of a moving hot-rolled strip and grinding the strip surface by inserting granular abrasives between the contacting surfaces. CONSTITUTION:A steel strip 1 is moved by the rotation of a roll 2; a belt 6 stretched around rolls 3, 4, 5 is brought into sliding contact with the curved outer surface of strip 1, by providing a proper tension to the belt 6 by moving the roll 5 and pressing the belt 6 against the strip 1, while moving the belt 6 at the higher speed than that of the strip 1. Granular abrasives 8 scattered from a feeding device 7 are inserted between the contacting surfaces, to grind and remove the scales of the surface of strip 1. After passing through the contacting surface, the abrasives 8 are collected in a recovering device 9 and is recirculatingly used. Further, the hardness of abrasive 8 is made equal to or larger than that of the oxidized scales formed on the surface of strip 1, in Vickers hardness, and the abrasive 8 having particle size of

2. 发明专利

JPS6081078A CERAMIC ETCHING PROCESS 失效
公开(公告)号：JPS6081078A
公开(公告)日：1985-05-09
申请号：JP18703483
申请日：1983-10-07
申请人： HITACHI LTD
发明人： KOYAMA TETSUO , SUWA MASATERU , NAKAGAWA YUUSAKU , ASAI OSAMU
IPC分类号： C04B41/91

3. 发明专利

JPS59212189A Brazing filler metal and composite target for x-ray tube 失效
标题翻译：用于X射线管的BRAZING FILLER金属和复合材料目标
公开(公告)号：JPS59212189A
公开(公告)日：1984-12-01
申请号：JP8591283
申请日：1983-05-18
申请人： Hitachi Ltd , Hitachi Medical Corp
发明人： YAMADA TSUNEO , KOYAMA TETSUO , BABA NOBORU , SUWA MASATERU , NAKAGAWA YUUSAKU , ONODERA KIYUUKICHI , SAKAMOTO HIROSHI
IPC分类号： H01J35/10 , B23K35/22 , B23K35/30 , B23K35/32 , C04B37/02
CPC分类号： B23K35/32
摘要： PURPOSE:To provide a brazing filler metal which joins securely a high melting metallic material and graphite by consisting the same of clad foil provided with an Ni or Co layer on the surface of a metallic material of Zr alone, a Zr alloy of the specific compsn. contg. W, Mo, Ni, etc. or Ti, Nb, Ta, etc. CONSTITUTION:This brazing filler metal consists of the clad foil provided with an Ni or Co layer having 0.01-20mum thickness on the surface of one kind of metallic materials such as Zr simple substance, a Zr-W alloy contg.
摘要翻译：目的：提供一种钎料，通过在单独的Zr金属材料的表面上形成具有Ni或Co层的复合箔，将高熔点金属材料和石墨牢固地连接在一起，特定化合物的Zr合金。 contg。 W，Mo，Ni等或Ti，Nb，Ta等。构成：该钎料由在一种金属材料的表面上具有0.01-20μm厚度的Ni或Co层的复合箔组成，作为Zr单体，Zr-W合金。 <= 30wt％W，Zr-Mo合金 <= 30％Mo，Zr-W-Ni合金 <= 30％W和<= 20％Ni，Zr-Mo-Ni合金 <= 30％Mo和<= 20％Ni，或Ti，Nb，Ta等。所述材料牢固地连接高熔点金属材料和石墨。作为用于接合W或其合金，W或其合金/ Mo等的钎料和用于X射线管的旋转阳极的复合靶的石墨，该钎料特别适用。

4. 发明专利

JPS5881584A SOLID PHASE JOINING METHOD OF METAL 失效
公开(公告)号：JPS5881584A
公开(公告)日：1983-05-16
申请号：JP17977381
申请日：1981-11-11
申请人： HITACHI LTD
发明人： FUKUI HIROSHI , SOENO HIROSHI , TSUCHIYA MASATOSHI , SAKAMOTO HIROSHI , OKAYAMA AKIRA , NAKAGAWA YUUSAKU
IPC分类号： C22C19/05 , B23K20/00 , B23K20/22 , C22C19/07
摘要： PURPOSE:To perform solid phase joining with high joining strength by pressurizing and heating the fayed surfaces of materials to be joined consisting of metals via a metallic insert material consisting essentially of the same metal as that of the essential components of the materials to be joined between both surfaces. CONSTITUTION:In the stage of subjecting materials to be joined consisting of metals, more particularly, Ni-base and Co-base superalloys to solid phase welding, the following insert material is used: The Ni-base or Co-base superalloy powder produced by a quick cooling method for molten metal using a twin roll or single roll method or an atomizing method using an inert gas such as Ar or He is used as the insert material. The fayed surfaces of the materials to be joined consisting of the superalloy are heated under pressure and are joined via the insert material. Then the metals are joined in the solid phase by using the insert material contg. no B, whereby high joining strength is obtained.

5. 发明专利

JPS5358955A THERMAL DEFORMATION PREVENTING METHOD 失效
公开(公告)号：JPS5358955A
公开(公告)日：1978-05-27
申请号：JP13409976
申请日：1976-11-10
申请人： HITACHI LTD
发明人： MIYAZAKI KUNIO , TAMAMURA TATEO , NAKAGAWA YUUSAKU , KOJIMA YOSHIAKI , FUKAMI KUNIO
IPC分类号： B21D1/00 , B21D3/00 , B21D5/00 , B21D7/00 , B24C1/00 , B24C1/10

6. 发明专利

JPS617554A Rotary target for x-ray tube 失效
标题翻译： X射线旋转目标
公开(公告)号：JPS617554A
公开(公告)日：1986-01-14
申请号：JP12749284
申请日：1984-06-22
申请人： Hitachi Ltd , Hitachi Medical Corp
发明人： YAMADA TSUNEO , BABA NOBORU , NAKAGAWA YUUSAKU
IPC分类号： H01J9/14 , H01J35/10
CPC分类号： H01J35/108 , H01J2235/084
摘要： PURPOSE:To reduce the weight of a rotary target for an X-ray tube and achieve improve adhesion between the layers of the target by forming a layer made of an X-ray-radiating material on a ceramic plate and then thermally treating the thus obtained body in a nonoxidative atmosphere to form alloy layers between the ceramic plate and the layer made of an X-ray-radiating material. CONSTITUTION:A layer 2 made of an X-ray-radiating material is formed on a ceramic plate 1 by CVD or similar method. It is desirable that the X-ray-radiating material be composed of W and 0-26wt% of Re. After the layer 2 is formed on the ceramic plate 1, the thus obtained body is thermally treated in a nonoxidative atmosphere. The nonoxidative atmosphere used in this invention is either a vacuum or a reducing atmosphere. It is desirable that the thermal treatment be performed at 1,000-1,600 deg.C. This temperature range is selected in order to achieve improved adhesion between the ceramic plate 1 and the layer 2 by forming alloy layers 3 and 4.
摘要翻译：目的：为了减轻X射线管的旋转靶的重量，通过在陶瓷板上形成由X射线辐射材料制成的层，然后热处理所得到的，从而提高靶层之间的粘合力在非氧化气氛中形成陶瓷板和由X射线辐射材料制成的层之间的合金层。构成：通过CVD或类似方法在陶瓷板1上形成由X射线辐射材料制成的层2。希望X射线辐射材料由W和0-26重量％的Re组成。在陶瓷板1上形成层2之后，将这样得到的主体在非氧化气氛中进行热处理。本发明中使用的非氧化气氛是真空或还原气氛。理想的是在1000-1,600℃进行热处理。选择该温度范围以通过形成合金层3和4来实现陶瓷板1和层2之间的改善的附着。

7. 发明专利

JPS6020434A ROTARY ANODE COMPOSITE TARGET FOR X-RAY TUBE 失效
公开(公告)号：JPS6020434A
公开(公告)日：1985-02-01
申请号：JP12620183
申请日：1983-07-13
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： KOYAMA TETSUO , YAMADA TSUNEO , BABA NOBORU , SUWA MASATERU , NAKAGAWA YUUSAKU
IPC分类号： G21K5/08 , H01J35/10
摘要： PURPOSE:To secure a large-sized composite target made of tungsten and tungsten-rhenium alloy composed of high density graphite as a base plate, by welding them with a W-Co alloy and a W-Ni alloyed brazing filler metal consisting in a specified compounding ratio. CONSTITUTION:In time of manufacturing a composite target of graphite/tungsten and tungsten/rhenium alloy or graphite/molybdenum/tungsten, those of 40-50wt% W-Co and 40-50wt% W-Ni alloyed brazing filler metals are used. Since the said alloyed brazing filler metals give full play to high density graphite and good wettability, high strength graphite is formed as a base and, what is more, it is excellent in breaking strength in time of use for rotation, thus a large caliber target can be secured. As a result, an accumulated heating value is increasable and moreover a highly efficient rotary anode composite target for a X-ray tube excellent in heat radiability can be secured.

8. 发明专利

JPS59112126A Preheating plug of diesel engine 失效
标题翻译：柴油发动机预热插头
公开(公告)号：JPS59112126A
公开(公告)日：1984-06-28
申请号：JP22184382
申请日：1982-12-20
申请人： Hitachi Ltd
发明人： KOYAMA TETSUO , NAKAGAWA YUUSAKU , SUWA MASATERU
IPC分类号： F23Q7/00
CPC分类号： F23Q7/001
摘要： PURPOSE:To raise the quick-heating property of a preheating plug of a Diesel engine by incorporating Fe, Ni, or an alloy of these into Ni-Zn and Cu-Zn based ferrites CONSTITUTION:Ni-Zn based ferrite powder mixed with NiO, ZnO and Fe2O3 is well ground in a ball mill, and the mixture is molded to form one side of halves between which a resistor is to be buried. An Ni metal wire 1 is attrached to the center of the one side of the halves, and the halves are lapped with each other, again ground, and sintered in atmosphosphere of Ar gas.
摘要翻译：目的：通过将Fe，Ni或它们的合金掺入到Ni-Zn和Cu-Zn基铁素体中来提高柴油发动机的预热塞的快速加热性能：与NiO混合的Ni-Zn基铁素体粉末，在球磨机中将ZnO和Fe 2 O 3充分研磨，并将该混合物模制成一半的一面，在其之间埋入电阻器。将Ni金属线1粘贴在半部一侧的中心，并将两半相互重叠，再次研磨，并在Ar气体的气氛中烧结。

9. 发明专利

JPS5518330A PROCESSING METHOD OF END MILL 失效
公开(公告)号：JPS5518330A
公开(公告)日：1980-02-08
申请号：JP8865278
申请日：1978-07-19
申请人： HITACHI LTD
发明人： NAKAGAWA YUUSAKU , KOIZUMI MASAHIRO , TAMAMURA TATEO , OGAWA TAKUZOU , FURUYA IZUMI
IPC分类号： B23C3/00
摘要： PURPOSE:To cut a material to be cut while moving the same in a direction reverse to the rotational direction of an end mill, thereby to form a compression residual stress on the surface and increase the fatigue strength. CONSTITUTION:The number of cutting tooth, rotational speed and feed speed of the material to be cut are suitably selected so that compression and frictional force are applied to the surface to be cut by the subsequent cutting tooth while moving the material to be cut in a direction reverse to the rotational direction of the end mill, and further the surface to be cut is cut while cooling. By this procedure, a great compression stress is formed on the surface and stress distribution becomes deep, and hence a material to be cut in which the fatigue strength is increased, stress corrosion cracks are reduced, and the wear characteristics are excellent can be obtained.

10. 发明专利

JPS51126917A PROCESS FOR HEAT TREATMENT OF 12*CR STEEL AXLE MATERIAL 失效
公开(公告)号：JPS51126917A
公开(公告)日：1976-11-05
申请号：JP5130575
申请日：1975-04-30
申请人： HITACHI LTD
发明人： NAKAGAWA YUUSAKU , KOIZUMI MASAHIRO , TAMAMURA TATEO
IPC分类号： C22C38/00 , C21D1/19 , C21D6/00 , C21D9/28 , C21D9/30 , C22C38/48
摘要： PURPOSE:Process for heat treatment which gives suitable mechanical strength and notch toughness to axle material for intermediate-pressure rotors of steam turbines without giving quenching cracks.

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