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21. 发明专利

JPS5567644A SHARPNESS JUDGEMENT METHOD FOR CONSTRUCTION MATERIAL 失效
公开(公告)号：JPS5567644A
公开(公告)日：1980-05-21
申请号：JP14102878
申请日：1978-11-17
申请人： HITACHI LTD
发明人： HAYASHI MAKOTO , NAKAGAWA YUUSAKU , KOIZUMI MASAHIRO , TAMAMURA TATEO , SHIMIZU TASUKU , ENOMOTO KUNIO
IPC分类号： G01N23/207 , G01N17/00 , G01N23/20
摘要： PURPOSE:To enable to measure the degree of sharpness of the construction materials of actual plant simply and accurately, with diffraction X-ray profile through the sharpness treatment for the test piece in advance. CONSTITUTION:The incident X-rays 10 are radiated around the welded part 3 of pipe 1 or 2 form the goniometer 5. The X-ray intensity of the diffraction X-rays 11 reflected on the inspected surface is detected with the goniometer 5. In radiating the incident X-rays on the inspected surface, the incident angle rotation axis 9 is turned to change the incident angle of the incident X-rays 10. From the relation between the incident angle and the intensity of X-rays, the half value with and the peak position corresponding to the inspected position of the pipe 1 or 2 are determined, and the degree of the sharphess around the welded part 3 can be judged from the values.

22. 发明专利

JPS53104531A SURFACE PROCESSING METHOD DECREASING STRESS CORROSION CRACKING 失效
公开(公告)号：JPS53104531A
公开(公告)日：1978-09-11
申请号：JP1921877
申请日：1977-02-25
申请人： HITACHI LTD
发明人： NAKAGAWA YUUSAKU , USAMI KENICHI , MIYAZAKI KUNIO
IPC分类号： B23K31/00 , B24B1/00 , B24C1/10 , C21D7/00
摘要： PURPOSE:To prevent the occurrence of stress corrosion cracking, by forming compression residual stress on the surface of bevelling processing part before and after welding and making the roughness of surface less than 40mu, at the time of producing austenite type stainless steel tube by welding.

23. 发明专利

JPS53102208A PREPARATION OF SINTERED MATERIAL 失效
公开(公告)号：JPS53102208A
公开(公告)日：1978-09-06
申请号：JP1619477
申请日：1977-02-18
申请人： HITACHI LTD
发明人： NAKAGAWA YUUSAKU , TAMAMURA TATEO , KOIZUMI MASAHIRO , OKAYAMA AKIRA
IPC分类号： C22C38/00 , B22F3/10 , C22C33/02
摘要： PURPOSE:To obtain the sintered material having high strength and high toughness in which graphite is finely dispersed, by sintering the amorphous powder of cast iron containing the limited amount of carbon.

24. 发明专利

JPS60249233A ROTARY ANODE TARGET FOR X-RAY TUBE 失效
公开(公告)号：JPS60249233A
公开(公告)日：1985-12-09
申请号：JP10257484
申请日：1984-05-23
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： BABA NOBORU , YAMADA TSUNEO , NAKAGAWA YUUSAKU , KOTABE MUNETOMO
IPC分类号： H01J35/10
摘要： PURPOSE:To obtain a rotary anode target for an X-ray tube having a large aperture and large capacity enduring high speed rotation by making the upper and lower surfaces of a disk-shaped compound body composed of graphite and ceramics to be of graphite while making graphite and ceramics to be of a laminated construction in the thickness direction of the disk. CONSTITUTION:A graphite mold material to be used for firing ceramics sticks firmly to ceramics by a hot plate. Making use of said property a target having a sectional construction as shown in fig. is manufactured. The upper and lower surfaces of said target are made of graphite 1 while being chucked by a finishing process or the like with an umbrella-type slope whereby sandwiching ceramics. The target is composed of a hole 4 accurately bored for attaching a rotary axis and an X-ray generating source material 2 of the tilted part to be irradiated by electron rays. Said target has the rotary destruction intensity more than twice as compared with that of the same shape while being made of a graphite substrate alone.

25. 发明专利

JPS6075575A CHEMICAL VAPOR PHASE PLATING APPARATUS 失效
公开(公告)号：JPS6075575A
公开(公告)日：1985-04-27
申请号：JP18303183
申请日：1983-10-03
申请人： HITACHI LTD
发明人： BABA NOBORU , SUWA MASATERU , NAKAGAWA YUUSAKU , YAMADA TSUNEO
IPC分类号： C23C16/44 , C23C16/455
摘要： PURPOSE:To form a high-purity plated film at high speed without the contamination of an unreacted raw gas with a by-product gas by providing ports for discharging the by-product gas from the plating to the upper and the lower side of a reaction vessel of a chemical vapor-phase plating apparatus. CONSTITUTION:A substrate 2 to be plated is placed on a revolving stand 7 in a reaction vessel 4, and heated to a reaction temp. with a heating coil 3. A raw gas for chemical-vapor phase plating is then supplied into the reaction vessel 4 from an inlet 1, and a plated film is formed on the surface of the substrate 2 by the thermal decomposition or the vapor-phase reaction of the raw gas. In this case, since the by-product gas from the plating is rapidly discharged from an upper gas discharge port 5 and a lower gas discharge port 6, the raw gas is not contaminated with the by-product gas and the high-purity and uniform-thickness plated film can be formed at high speed.

26. 发明专利

JPS59220296A BRAZING FILLER METAL AND COMPOSITE TARGET FOR X-RAY TUBE 失效
公开(公告)号：JPS59220296A
公开(公告)日：1984-12-11
申请号：JP9418383
申请日：1983-05-30
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： H01J35/10 , B23K35/00 , B23K35/14 , B23K35/30 , B23K35/32 , B23K35/24
摘要： PURPOSE:To provide a novel brazing filler metal and titled joining target for a high melting metallic material and graphite by providing an Ni or Co layer on the surface of a metallic material of >=1 kind among Ni-W, Ni-W-Zr, Ni-Mo and Ni-Mo-Zr alloys in which contents of W, Mo and Zr are respectively specified. CONSTITUTION:A brazing filler metal is clad foil provided with an Ni or Co layer of 0.01-20mum on the surface of >=1 kind of metallic materials consisting of an Ni-W alloy contg., by weight, 5-30% W, an Ni-W-Zr alloy contg. 5-30% W and

27. 发明专利

JPS598252A Rotary target for x-ray tube and its production method 失效
标题翻译： X射线管旋转目标及其生产方法
公开(公告)号：JPS598252A
公开(公告)日：1984-01-17
申请号：JP11674382
申请日：1982-07-07
申请人： Hitachi Ltd , Hitachi Medical Corp
发明人： BABA NOBORU , NAKAGAWA YUUSAKU , SUWA MASATERU
IPC分类号： H01J9/14 , H01J35/10
CPC分类号： H01J35/108 , H01J2235/084
摘要： PURPOSE:To form a lightweight rotary anode target with a large diameter and capable of withstanding a heat cycle of quick heating and quick cooling by applying thermal hysteresis to a target using graphite with small specific gravity as a base beforehand and by improving the adhesion with the graphite base, intermediate layer, and target material layer. CONSTITUTION:A metal layer (first layer) of a metal hard to react or not reacting to graphite, i.e., rhenium, etc. with a thickness of 1-20mum is provided on a graphite base by applying a spattering method. A material containing 0-26wt% of Re in W is preferable as a target material to improve X-ray characteristics. Next, it is heat-treated in the non-oxidizing atmosphere. The heat-treating temperature of 1,000-1,500 deg.C is preferable. If an intermediate layer of rhenium 2 is provided between the graphite base 1 and the target material of tungsten 3 and heat-treated, tungsten carbide 4 and an alloy layer 5 with tungsten appear, thus the adhesion between individual layers is improved.
摘要翻译：目的：形成具有大直径的轻质旋转阳极靶，并且可以预先通过以小比重的石墨作为基底向目标施加热滞后，并且通过改善与其的粘附性来耐受快速加热和快速冷却的热循环石墨基，中间层和靶材层。构成：通过施加溅射法在石墨基体上提供难以与石墨（即铼等）反应或不反应的金属的金属层（第一层），其厚度为1-20μm。优选含有0〜26重量％的Re的W的材料作为目标材料，以提高X射线特性。接着，在非氧化性气氛中进行热处理。热处理温度为1000-1,500℃是优选的。如果在石墨基体1和钨3的靶材之间设置铼2的中间层并进行热处理，则会出现碳化钨4和具有钨的合金层5，从而提高各层之间的粘附力。

28. 发明专利

JPS58189557A Predicting method of life of metallic material 失效
标题翻译：金属材料寿命预测方法
公开(公告)号：JPS58189557A
公开(公告)日：1983-11-05
申请号：JP7043782
申请日：1982-04-28
申请人： Hitachi Ltd
发明人： SHIYOUJI MORITAKA , NAKAGAWA YUUSAKU , SOENO HIROSHI
IPC分类号： G01N33/20
CPC分类号： G01N33/20
摘要： PURPOSE:To predict the life in case of overlapping the fatigue and creep of a metallic material receiving a load under the environment of a high temperature, by computing the consumption ratio of the life from the hardness and electric resistance. CONSTITUTION:The consumption ratio of life of a fatigue degree is computed basing on a curve of the hardness-fatigue degree life consumption ratio by measuring Vickers hardness of a metallic material receiving a load under the environment of a high temperature and the damage ratio of the fatigue degree is determined. In the same way, the damage degree of a creep is determined basing on the measured electric resistance. These both damage ratios are conformed with an already known damages curve on the occasion of overlapping the fatigue with the creep. The life of the metallic material overlapping the fatigue and creep by receiving the load under the environment of the high temperature, is presumed by this detected damage.
摘要翻译：目的：通过从硬度和电阻计算寿命的消耗比来预测在高温环境下接收负载的金属材料的疲劳和蠕变情况下的寿命。构成：通过测量在高温环境下接受负荷的金属材料的维氏硬度和硬度疲劳度寿命消耗比的损伤比，基于硬度 - 疲劳度寿命消耗比的曲线计算疲劳度的寿命消耗比确定疲劳度。以同样的方式，蠕变的损伤程度是根据测得的电阻来确定的。在疲劳与蠕变重叠的情况下，这两种损伤比均符合已知的损伤曲线。通过在高温环境下接收负载而与疲劳和蠕变重叠的金属材料的寿命由该检测到的损伤推定。

29. 发明专利

JPS5888638A DETECTING METHOD FOR MATERIAL QUALITY CHANGE OF THERMOELECTRIC POWER OPERATION PLANT 失效
公开(公告)号：JPS5888638A
公开(公告)日：1983-05-26
申请号：JP18680581
申请日：1981-11-24
申请人： HITACHI LTD
发明人： SHIYOUJI MORITAKA , NAKAGAWA YUUSAKU , SOENO HIROSHI
IPC分类号： G01N17/00 , G01N23/207
摘要： PURPOSE:To automatically record the relation between elapsed years and strain, by measuring diffraction strength curves of a casing and a rotor at prescribed parts through an X-ray strain measuring device when operation is not carried out. CONSTITUTION:A material to be tested is irradiated with X rays radiated from an X-ray generator 10, and a rotary system is put in operation by a goniometer 11. Diffracted rays scattered by said material are counted by a sintillation counter 12, and an arithmetic device 13 calculates various physical quantities. The quantity corresponding accurately to X-ray strain is integral width, which is obtained easily by dividing the area encircled with a diffraction strength curve and an transverse axis by maximum intensity. The calculated physical quantity is recorded on a recorder 14 for a long period. A monitoring period should be >=1 year at a minimum, and the result is compared with a master curved line obtained by an experiment to estimate the current remaining life without reference to the accidental occurrence of a change in material quality.

30. 发明专利

JPS57197440A LIFE FORESEEING METHOD FOR ACTUAL COMPONENT 失效
公开(公告)号：JPS57197440A
公开(公告)日：1982-12-03
申请号：JP8095181
申请日：1981-05-29
申请人： HITACHI LTD
发明人： SHIYOUJI MORITAKA , NAKAGAWA YUUSAKU , TENNO HIROSHI , SHINOYA KENEI
IPC分类号： G01M99/00 , G01N3/06 , G01N3/32
摘要： PURPOSE:To foresee the life of an actual member surely and easily, by fixing a test sample of the same material as a part where the stress of an actual member is loaded on the actual member so that the stress following to the stress can be loaded to the test sample. CONSTITUTION:A fixed blade 2 is provided for a turbine shaft 1 and a nozzle 3 is provided on this tip. Grooves 4 are provided between fixed blades 2. On the surface of the groove 4, test samples 5 made of the same material as the turbine shaft 1 are fixed on a lot of bolts. The test samples 5 are curved only toward the circumferential direction so that they can be fitted to the circular shape of the turbine shaft 1. A lot of holes 6 are made through the samples 5 and the samples 5 are fixed to the turbine shaft 1 with the bolt inserted through the holes.

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