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61. 发明专利

JPH03145799A CHIP ELECTRONIC COMPONENT FEEDER 失效
公开(公告)号：JPH03145799A
公开(公告)日：1991-06-20
申请号：JP28459189
申请日：1989-10-31
申请人： HITACHI LTD
发明人： HAEDA YOSHIO , IBARAKI YOSHIAKI , HONMA KAZUO , TOMITA MASAMICHI , IGARASHI SHIGEMI , FUJISHIRO KEISUKE
IPC分类号： H05K13/02
摘要： PURPOSE:To enable parts to be easily replenished and to enable the components which are aligned once not to be disturbed by a method wherein an air jetting means which advances chip electronic components into a component aligning slot one by one and a delivery path which guides the component which passes through the component aligning slot to a prescribed unloading position are provided. CONSTITUTION:A block 11' is provided to the lower part of a case 11, the upside of the block 11' forms a tapered space cooperating with a baffle plate 23, and a component aligning chamber 22' is formed under the baffle plate 23. An air introducing hole 19 whose one end is opened outside is provided to the lower part of the block 11', and an air jet nozzle 12 is provided confronting the hole 19. Chip electronic components are put in the case 11 and compressed air is intermittently supplied into the case 11 through the jet nozzle 11. The compressed air reaches to the component aligning chamber 22' through the air introducing hole 19 via an air path 19' and stirs up the components. At this point, only the required number of the electronic components drop into the part aligning chamber 22' passing under the baffle plate 23 as controlled by the baffle plate 23, so that the electronic components can fully be changed in position and delivered to a position 24' correspondent to the position of a suction nozzle passing through a component aligning slot 22.

62. 发明专利

JPH02305391A SCROLL COMPRESSOR 失效
公开(公告)号：JPH02305391A
公开(公告)日：1990-12-18
申请号：JP12522789
申请日：1989-05-18
申请人： HITACHI LTD
发明人： SUEFUJI KAZUTAKA , ARATA TETSUYA , IBARAKI YOSHIAKI , SHIIBAYASHI MASAO , OKAMOTO JOJI
IPC分类号： F01C17/06 , F04C18/02 , F04C23/00
摘要： PURPOSE:To reduce leakage loss and friction loss and improve volume efficiency by forming a fixed scroll of material with high rigidity and low heat conductivity and forming a swirl scroll and an Oldham's ring of material with low density and high heat conductivity. CONSTITUTION:For a scroll compressor, a compressor portion 2 and a motor portion are housed in a closed container 1. For the compressor portion 2, a fixed and a swirl scrolls 4, 5 are engaged with each other to form a compression room 9. An Oldham's ring and, etc., are laid between the swirl scroll 5 and a frame 11, therefore preventing the self-rotation of the swirl scroll 5. With such constitution, the fixed scroll 4 and the frame 11 are formed of material with high rigidity and low heat conductivity. On the other hand, the swirl scroll 5 and the Oldham's ring 12 are formed of material with low density and high heat conductivity.

63. 发明专利

JPH02169886A SCROLL COMPRESSOR 失效
公开(公告)号：JPH02169886A
公开(公告)日：1990-06-29
申请号：JP32068388
申请日：1988-12-21
申请人： HITACHI LTD
发明人： SHIIBAYASHI MASAO , NAKAKADO MASAAKI , SUEFUJI KAZUTAKA , IBARAKI YOSHIAKI , OKAMOTO JOJI
IPC分类号： F04C18/02
摘要： PURPOSE:To make an outer diameter small by forming the winding start section at the tip of the first lap in a wedge shape consisting of a circular arc curve with the diameter of a lap tooth space and involute curves and forming the second lap winding start section in a bulb shape consisting of a rugged circular arc curve in no contact with the first lap and an involute curve. CONSTITUTION:The winding start section at the tip of the first lap 1b of a fixed scroll 1 is formed in a wedge shape with a circular arc curve with the diameter of the first lap tooth space and inside and outside involute curves. The winding start section at the tip of the second lap 2b of a revolving scroll 2 is formed in a bulb shape with a rugged circular arc curve in no contact and interference with the first lap 1b and an involute curve. The interference between both laps 1b and 2b is prevented. An inclined section 2fc with different thickness is provided on the bulb section 2f of the revolving scroll 2, the flow path area to the innermost chamber 52 is expanded, and the discharge action is smoothly performed. The outer diameter can be made small according to this constitution, and performance is improved.

64. 发明专利

JPS6428271A PREPARATION OF HIGH-TEMPERATURE SUPERCONDUCTING MATERIAL 失效
公开(公告)号：JPS6428271A
公开(公告)日：1989-01-30
申请号：JP3524788
申请日：1988-02-19
申请人： HITACHI LTD
发明人： IBARAKI YOSHIAKI , KANAMARU MASATOSHI , ENDO KIJU , OKADA RYOJI , HANEDA MITSUAKI , NATORI TATSUO , SHIRAKU YOSHINORI
IPC分类号： B28B1/26 , B28B7/34 , C01G1/00 , C04B35/00 , C04B35/45 , H01B12/02 , H01B13/00 , H01L39/24
摘要： PURPOSE:To obtain a high-temperature superconducting material capable of providing a superconducting wire having high critical temperature, high critical magnetic field and high critical electric current density, by uniformly blending a high-temperature superconducting raw material obtained by uniformly dispersing and blending ultrafine powders of component element compounds at a prescribed ratio and reacting the blend in an oven into a solvent and forming slip. CONSTITUTION:An ultrafine mixture obtained by uniformly dispersing and blending ultrafine powders of constituent element compounds, e.g. Y2O3, BaCO3 and CuO at such a ratio as to be a prescribed stoichiometric composition is charged into an oven and reacted e.g. at high temperature such as about 950 deg.C in O2 atmosphere to provide the high-temperature superconducting raw material. Then a solvent and dispersing agent are added and uniformly blended to the raw material to afford slip, which is then blended with water and others and the blend is poured into a molding mold and solidified and then burned in an oven.

65. 发明专利

JPS63198299A RADIO FREQUENCY INDUCTION PLASMA GENERATOR 失效
公开(公告)号：JPS63198299A
公开(公告)日：1988-08-16
申请号：JP2963287
申请日：1987-02-13
申请人： HITACHI LTD
发明人： KANAMARU MASATOSHI , ARAYA TAKESHI , IBARAKI YOSHIAKI , ENDO KIJU , HIOKI SUSUMU
IPC分类号： B01J19/08 , H05H1/30 , H05H1/42

66. 发明专利

JPS62207803A APPARATUS FOR PRODUCING ULTRAFINE PARTICLE 失效
公开(公告)号：JPS62207803A
公开(公告)日：1987-09-12
申请号：JP5039586
申请日：1986-03-10
申请人： HITACHI LTD
发明人： ENDO KIJU , IBARAKI YOSHIAKI , ARAYA TAKESHI , KANAMARU MASATOSHI , HIOKI SUSUMU
IPC分类号： B01J19/08 , B01J19/00 , B22F9/14
摘要： PURPOSE:To efficiently produce ultrafine particles by disposing the 1st electrode for arc discharge to face a base material and disposing the 2nd electrode for arc discharge at the angle different from the angle between said electrode and the base material at the time of producing ultrafine particles by an arc heat. CONSTITUTION:The inside of a chamber 1 is evacuated and a prescribed gas is sealed therein to about 1MPa. Electric current is supplied from an electrode 10 to generate a gaseous tungsten arc from the 1st electrode 4 for arc discharged and a gaseous plasma arc from the 2nd electrode 5 for arc discharge so that the arc 6 having the prescribed shape is formed. The gaseous plasma arc from the 2nd electrode 5 has no deflection of the arc by electromagnetic force as the current density is large. The base material 3 is thus efficiently heated and melted to form the ultrafine particles. The gaseous tungsten arc from the 1st electrode 4 deflect largely and therefore, the generated ultrafine particles are quickly conveyed in the specified direction. The ultrafine particles are thereby introduced into as conveying pipe 7. Since the arc is generated between the two electrodes 4 and 5, the ultrafine particles are obtainable even with a nonconductive material.

67. 发明专利

JPS62103307A APPARATUS FOR PRODUCING ULTRAFINE PARTICLES 失效
公开(公告)号：JPS62103307A
公开(公告)日：1987-05-13
申请号：JP24140785
申请日：1985-10-30
申请人： HITACHI LTD
发明人： ENDO KIJU , IBARAKI YOSHIAKI , ARAYA TAKESHI , KANAMARU MASATOSHI , HIOKI SUSUMU
IPC分类号： B22F9/14
摘要： PURPOSE:To stably and efficiently capture ultrafine particles by disposing a bar-shaped raw material for the ultrafine particles and electrode at a prescribed angle, generating an arc contg. the ultrafine particles between both and blowing a carrier gas to the arc. CONSTITUTION:The bar-shaped raw material 3 (anode) for the ultrafine particles and the electrode 4 (cathode) are disposed to have 15-50 deg. angle in a chamber 1. After the inside of a chamber 1 is evacuated to a vacuum, a prescribed pressure is maintained therein by an inert gas. A prescribed voltage and current are impressed between the base material 3 and the electrode 4 to generate the arc 5. The ultrafine particles are contained in the arc and the carrier gas 7 is blown from a nozzle 6 to the arc to convey, cool and capture the ultrafine particles into a capturing chamber 8. The material 3 is rotated by revolving rollers 11 in this stage and the arc voltage is detected by a voltage detecting circuit 12. The detected voltage is compared with the voltage of a reference voltage detecting circuit 13 in a comparator 14. A base material feed part 15 is operated by the differential voltage thereof to feed the material 3 in the arc direction until the differential voltage is made zero. The ultrafine particle are thereby formed always under the same conditions.

68. 发明专利

JPS627804A PRODUCTION OF HYPERFINE PARTICLE 失效
公开(公告)号：JPS627804A
公开(公告)日：1987-01-14
申请号：JP14468885
申请日：1985-07-03
申请人： HITACHI LTD
发明人： IBARAKI YOSHIAKI , KANAMARU MASATOSHI , ARAYA TAKESHI , ENDO KIJU , HIOKI SUSUMU
IPC分类号： B22F9/14
摘要： PURPOSE:To safely produce hyperfine metallic or alloy particles with high production efficiency by feeding a gas provided with a whirling flow to the inside of a torch for an arc heat source for melting a metal or alloy. CONSTITUTION:When hyperfine particles are produced from a molten metal or alloy with an arc heat source, gaseous He, CO2, N2, Ar or a mixture thereof is fed to a gas path 3 on the inside of the cover 2 of a torch for the arc heat source in the direction of an arrow 4 and is spouted from gas holes 5 to form a whirling flow 6. Arc generated from the electrode 1 of the torch is centered on a part of the surface of a material to efficiently melt the material and hyperfine particles are efficiently produced. Since the gas contg. no H2 is provided with a whirling flow so as to center arc, high safety operation can be carried out.

69. 发明专利

JPS60228606A ELECTRODE FOR MANUFACTURING HYPERFINE PARTICLES 失效
公开(公告)号：JPS60228606A
公开(公告)日：1985-11-13
申请号：JP8371284
申请日：1984-04-27
申请人： HITACHI LTD
发明人： OKADA RIYOUJI , IBARAKI YOSHIAKI , ARAYA TAKESHI , HIOKI SUSUMU , KANAMARU MASATOSHI
IPC分类号： B22F9/12 , B22F9/14
摘要： PURPOSE:To obtain an electrode for efficiently manufacturing hyperfine particles by forming a metallic coating layer having the same composition as a metal forming hyperfine particles on a tungsten rod for an electrode. CONSTITUTION:A tungsten electrode 1 is coated with a metal having the same composition as a metallic base material forming hyperfine particles or similar in composition to the base material to obtain an electrode 4. Arc is generated between the electrode 4 as a cathode and the base material 3 as an anode in a gaseous hydrogen-Ar mixture, and the material 3 is vaporized by heating with the arc to manufacture hyperfine particles. Thus, hyperfine particles of

70. 发明专利

JPS60228604A PRODUCTION OF ULTRAFINE PARTICLES 失效
公开(公告)号：JPS60228604A
公开(公告)日：1985-11-13
申请号：JP8371084
申请日：1984-04-27
申请人： HITACHI LTD
发明人： OKADA RIYOUJI , IBARAKI YOSHIAKI , HIOKI SUSUMU , ARAYA TAKESHI , KANAMARU MASATOSHI , ENDOU KIJIYUU , HANEDA MITSUAKI
IPC分类号： B22F9/12 , B22F9/14
摘要： PURPOSE:To produce efficiently ultrafine metallic particles in the stage of generating an arc between a base metal for evaporation and an electrode to form the ultrafine particles by making the current value to be passed as arc current smaller than the specific current value. CONSTITUTION:The base metal is evaporated in gaseous hydrogen or non- oxidizing hydrogen-contg. compd. or the gaseous mixture composed thereof or the gaseous mixture composed of such gas and inert gas and the arc is generated between the base metal and the electrode, by which the ultrafine particles are produced. The current smaller than the current value at which the arc begins to change from the shape diverging from the electrode to the base metal to the shape concentrating to the local part on the base metal as designated as IA is passed as the arc current. The current value IA in this case is IA=aL+b and L is the distance between the base metal and the electrode (mm.), (a), (b) are the values which vary mainly with the compsn. of the gaseous atmosphere, the compsn. of the base metal, the compsn., shape and diameter of the electrode, the flow rate of a shielding gas, atmospheric pressure, etc. and are the values within a 30A/mm.>=a>=2A/mm., 200A/mm.>=b>=0 range.

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