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21. 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

22. 发明专利

JPS59207552A Composite target for x-ray tube rotating anode 失效
标题翻译：用于X射线管旋转阳极的复合材料目标
公开(公告)号：JPS59207552A
公开(公告)日：1984-11-24
申请号：JP8335083
申请日：1983-05-12
申请人： Hitachi Ltd , Hitachi Medical Corp
发明人： YAMADA TSUNEO , KOYAMA TETSUO , BABA NOBORU , SUWA MASATERU , NAKAGAWA YUUSAKU
IPC分类号： H01J9/14 , H01J35/10
CPC分类号： H01J35/108
摘要： PURPOSE:To increase breakng strength by decreasing graphite occupying ratio in the surface layer, which is in contact with metal, of a graphite substrate than that in the inner layer when a composite target is formed by bonding a graphite substrate with a metal alloy. CONSTITUTION:A graphite substrate 1 that graphite occupying ratio in its surface layer is less than 1.8/2.2 and that in its inner layer is 1.8/2.2 or more is obtained by heating graphite in an atmosphere of gas containing oxygen at 600 deg.C or more, then quenching it in water. W-Re alloy 2 is placed thereon with Zr- 31Mo weld alloy 3 interposed, and they are heated in a vacuum under static pressure to bond them. By this process, a composite target for X-ray tube rotating anode is formed. Since weld alloy 3 and W-Re alloy penetrate in the surface layer in which graphite occupying ratio is low, strength is remarkably increased. Therefore, this process makes it possible to produce a large diameter target.
摘要翻译：目的：通过将石墨基板与金属合金接合来形成复合靶时，通过降低与金属接触的表面层中的石墨基材比石墨基板的石墨占据比例来提高断裂强度。构成：通过在600℃的含氧气体气氛中加热石墨，得到表面层中的石墨占有率小于1.8 / 2.2，其内层的石墨基体1为1.8 / 2.2以上的石墨基板1，或然后再在水中淬火。将W-Re合金2放置在其上，并插入Zr-31Mo焊接合金3，并将它们在静态压力下在真空中加热以使它们结合。通过该工艺，形成用于X射线管旋转阳极的复合靶。由于焊接合金3和W-Re合金在石墨占有率低的表层渗透，因此强度显着增加。因此，该方法使得可以生产大直径目标。

23. 发明专利

JPS57115622A HEAT RESISTANT MEMBER IN PREHEATING PLUG FOR DIESEL ENGINE 失效
公开(公告)号：JPS57115622A
公开(公告)日：1982-07-19
申请号：JP36681
申请日：1981-01-07
申请人： HITACHI LTD
发明人： KOYAMA TETSUO , IIJIMA SHIROU , SAKAMOTO HIROSHI , HARADA KOUJI , TAKEDA SEIJIROU
IPC分类号： F23Q7/00
摘要： PURPOSE:To improve the starting efficiency of a diesel engine vehicle by giving a sufficiently quick heating property t the engine by a method wherein at least one of metals such as Fe and Co is used as the heat resistant member to be embedded in a heat resistant metal forming part of the preheating plug. CONSTITUTION:The preheating plug used in the diesel engine is constructed in such a manner that a thin metallic wire as the heat resistant member is embedded in a heat resistant metallic pipe of stainless steel or the like and a heat resistant dielectric material such as magnesia powder is packed in the space between the heat resistant member and the heat resistant metallic pipe. In this case, at least one of Fe and Co is used as the heat resistant member. These metals must be pure without the inclusion of other alloy elelments therein. Further, in case where Co alloy including Fe 35-70% is used, the diesel engine can have a sufficiently quick heating property and the efficiency of the diesel engine vehicle can be effectively improved.

24. 发明专利

JPS5388621A DISCRIMINATING METHOD FOR SUBSTRATE METAL FOR DIRECTLYYHEATED CATHODE 失效
公开(公告)号：JPS5388621A
公开(公告)日：1978-08-04
申请号：JP241677
申请日：1977-01-14
申请人： HITACHI LTD
发明人： SAKAMOTO HIROSHI , TENNO HIROSHI , ANDOU HISASHI , KOYAMA TETSUO , OOTAKA KIYOSHI
IPC分类号： C22C19/03 , H01J1/15 , H01J9/04
摘要： PURPOSE:To discern the segregation of W in the alloy with the naked eye and to judge the quality of the material before the above-mentioned substrate metal is incorporated in the cathode, by heating the substrate metal for the directlyheated cathode in a vacuum.

25. 发明专利

JPH1131524A SODIUM-SULFUR BATTERY 失效
公开(公告)号：JPH1131524A
公开(公告)日：1999-02-02
申请号：JP18346897
申请日：1997-07-09
申请人： HITACHI LTD
发明人： ANPO KATSUO , HATOU HISAMITSU , KOBAYASHI MINORU , KOYAMA TETSUO , ABE KAZUHIKO
IPC分类号： H01M2/26 , H01M10/39
摘要： PROBLEM TO BE SOLVED: To significantly lower electric resistance by nickel-plating the surface of an iron-base alloy-made vessel, sandwiching a copper plate between the same and an aluminum-made collecting terminal adhesion face, and forming a nickel-copper-aluminum alloy through heating so as to fuse. SOLUTION: As a connection example of an aluminum-made negative electrode terminal 10 and an iron alloy-made negative electrode lid 4, the connection portion of the iron alloy-made negative electrode lid 4 is electroplated to form a nickel-plated layer 11, and a copper plate 12 is inserted between the same and the jointing negative electrode terminal 10. A nickel-plating layer 11 with a thickness of 2 to 20 microns is suitable, but practically five to 10 microns is suitable. Although a copper plate 12 thickness of 5 to 200 microns is suitable, practically 10 to 20 microns is sufficient. The negative electrode terminal 10 of 2 mm in thickness 20 mm in width and 20 mm in adhesion length is set on a copper plate 12 face, so that its adhesion face sticks closely and is lightly pressed. Thereafter, the same is heated at 550 to 650 deg.C in an inert gas.

26. 发明专利

JPH10228926A SODIUM-SULFUR BATTERY 失效
公开(公告)号：JPH10228926A
公开(公告)日：1998-08-25
申请号：JP3169797
申请日：1997-02-17
申请人： HITACHI LTD
发明人： ANPO KATSUO , KOYAMA TETSUO , HATOU HISAMITSU , KOBAYASHI MINORU , KUSAKABE KOJI , MADOKORO MANABU , MITSUYOSHI TADAHIKO , KAMO YUICHI
IPC分类号： H01M4/62 , H01M10/39
摘要： PROBLEM TO BE SOLVED: To reduce the unevenness of internal resistance of a battery, and improve the charging and discharging performance, and lower the cost of the positive electrode conductive material by pinching a graphite mat between a solid electrolyte and a positive electrode container so as to prevent the sedimentation of the mixture of graphite powder and sulfur in the condition that it is divided to a specified number in the axial direction of the battery, and filling each space between the graphite mat with graphite powder. SOLUTION: In this sodium-sulfur battery, a positive electrode conductive material 5, which is impregnated with sulfur 6 as the positive electrode active material, is filled in a cylindrical positive electrode container 1 made of metal and having a bottom. A cylindrical solid electrolyte tube 2 made of ceramics and having a bottom is arranged inside thereof, and sodium 7 as the negative electrode active material and a negative electrode conductive bar 8 for electrically connecting the sodium 7 and a negative electrode lid 4 to each other are provided. The positive electrode container 1 and the solid electrolyte tube 2 are air-tightly sealed by an upper insulating ring 3 made of ceramic and the negative electrode lid 4 made of metal. A graphite mat 9 is inserted into the positive electrode conductive material 5, and divided into 2-10 pieces.

27. 发明专利

JPH10208771A SODIUM-SULFUR BATTERY 失效
公开(公告)号：JPH10208771A
公开(公告)日：1998-08-07
申请号：JP1077697
申请日：1997-01-24
申请人： HITACHI LTD
发明人： SATO YOSHIMI , USAMI SABURO , KOYAMA TETSUO , HATOU HISAMITSU , UDOU RIYUUJIROU
IPC分类号： H01M10/39
摘要： PROBLEM TO BE SOLVED: To sufficiently prevent impurities form being concentrated in the joining part interface and improve corrosion resistance of the joined part. SOLUTION: At the time when an anode container flange 2 and a cathode container flange and an insulating ring 1 of a sodium-sulfur battery are joined, an intermediate material 9 made of an aluminum brazing material with lower melting point than that of pure aluminum is sandwiched between the insulating ring 1 and the cathode container flange and between the insulating ring 1 and the anode container flange 2, and further a downward projected part 10 is formed in the circumference of the outside end part of the flange 2 and the lower face of the flange 2 is frictionally pressure-connected with the insulating ring 1 through the intermediate material 9 and joined to the ring 1 by the friction heat.

28. 发明专利

JPH10134844A SODIUM-SULFUR BATTERY 失效
公开(公告)号：JPH10134844A
公开(公告)日：1998-05-22
申请号：JP28790696
申请日：1996-10-30
申请人： HITACHI LTD
发明人： KOYAMA TETSUO , MITSUYOSHI TADAHIKO , MADOKORO MANABU , ANPO KATSUO , HATOU HISAMITSU , NISHIMURA SHIGEOKI , SHIODA KATSUHIKO
IPC分类号： C22C21/02 , H01M2/02 , H01M10/39
摘要： PROBLEM TO BE SOLVED: To carry out the jointing of aluminum, and ceramics or other sort of metal, easily by a simple facility. SOLUTION: In this method of manufacturing a sodium-sulfur battery, a copper plating process to apply a copper plating on the jointing surface of a different sort of metal or on the surface of a ceramics to joint aluminum; a heating process to contact closely the aluminum surface to be jointed to the copper plate surface applied in the copper plating process, in a vacuum or an inert gas, and to heat at 550 to 650 deg.C; and a welding process to form a copper-aluminum alloy on the contact surface, and fusing it; are provided. Consequently, a solid jointing strength and a high airtightness can be obtained.

29. 发明专利

JPH10120474A BONDING BETWEEN ALUMINUM AND CERAMIC 失效
公开(公告)号：JPH10120474A
公开(公告)日：1998-05-12
申请号：JP27583096
申请日：1996-10-18
申请人： HITACHI LTD
发明人： ANPO KATSUO , KOYAMA TETSUO , ABE KAZUHIKO , HATOU HISAMITSU
IPC分类号： C04B37/02
摘要： PROBLEM TO BE SOLVED: To readily carry out bonding between different materials of aluminum and a ceramic by a simple apparatus. SOLUTION: This bonding method comprises a coppering process for coppering the surface of a different metal or a ceramic 2 to which aluminum 1 is bonded, a heating process for sticking an aluminum face to be bonded to the coppered face by the coppering process in vacuum or in an inert gas and heating the aluminum and the stuck metal or ceramic to 550-650 deg.C and a welding process for forming a copper-aluminum alloy on the stuck face and welding. Consequently, strong bond strength and airtightness are obtained.

30. 发明专利

JPH1040951A SODIUM SULFUR BATTERY MODULE 失效
公开(公告)号：JPH1040951A
公开(公告)日：1998-02-13
申请号：JP19178496
申请日：1996-07-22
申请人： HITACHI LTD
发明人： MITSUYOSHI TADAHIKO , KOYAMA TETSUO , HATOU HISAMITSU , MADOKORO MANABU
IPC分类号： H01M2/02 , H01M10/39
摘要： PROBLEM TO BE SOLVED: To provide a sodium sulfur battery module by which the degradation of a joining part and the corrosive degradation of a positive electrode vessel are hardly caused and high output operation can be performed. SOLUTION: In an Na sulfur battery module by connecting plural Na sulfur batteries containing a negative electrode vessel 2 to house Na, a positive electrode vessel 5 to house a positive electrode mold composed of sulfur or an Na polysulfide and carbon fiber, a solid electrolyte tube 1 to separate a negative electrode and a positive electrode from each other and an insulating member 7 which is connected to the solid electrolyte tube 1 and is joined to the negative electrode vessel 2 and the positive electrode vessel 5, the positive electrode vessel 5 contains a joining body of a cylinder part 51 and a flange part 52, and in a material of the cylinder part 51, a corrosive layer is arranged on a surface of Al or Al allay, and the cylinder part 51 is connected to Al or Al alloy-made bus bar, and in the flange part 52, the flange part 52 and the insulating member 7 are joined together by using stainless steel.

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