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1. 发明专利

JPH04116108A PRODUCTION OF CERAMICS-METAL COMPOSITE MATERIAL MEMBER 失效
公开(公告)号：JPH04116108A
公开(公告)日：1992-04-16
申请号：JP23581390
申请日：1990-09-07
申请人： MITSUBISHI HEAVY IND LTD
发明人： NOTOMI HIROSHI , TSUNODA HIDEO , TAKEDA YORIMASA , IGARI TOSHIHIDE , KOTO TOSHIYUKI , KUNISHIMA SHIGERU
IPC分类号： B22F7/02
摘要： PURPOSE:To improve the heat insulating property and workability by sintering a composite with the inside consisting of a composite of the ceramic and granular metal and coated with a metallic powder and rolling the sintered body. CONSTITUTION:A granular metal of stainless steel, etc., and a ceramic powder of zirconia, etc., are packed in a vessel of graphite, etc., to form a composite material with the inside consisting of a composite of the ceramics or granular ceramics and the granular metal coated with a metallic powder. The vessel is closed with a lid, pressurized and heated in a vacuum. The composite material is cooled and discharged to the outside, and the sintered member is rolled. The metallic part on the periphery of the member obtained is easily bonded by welding, brazing, etc., and is capable of being bent. Furthermore, since the residual stress at the metallic part is relieved by the rolling, a stabilized member with the strain due to working reduced is obtained.

2. 发明专利

JPS6245440A LOCAL FORGING METHOD FOR IMPROVING ULTRASONIC PERMEABILITY OF CAST STEEL MATERIAL 失效
公开(公告)号：JPS6245440A
公开(公告)日：1987-02-27
申请号：JP18292285
申请日：1985-08-22
申请人： MITSUBISHI HEAVY IND LTD , TOA VALVE , NIPPON STAINLESS STEEL CO
发明人： YAMADA KATSUMI , TOMOMATSU KENICHI , KOTO TOSHIYUKI , MANABE YOSHIHISA , INAGAKI KUNIJI , SHIBATA KENJI , MIZUGUCHI MASAAKI
IPC分类号： C21D7/00 , B21J1/02 , B21K21/12
摘要： PURPOSE:To improve the ultrasonic permeability by inserting a mandrel into inside of a part to be forged of a cast steel material, executing a pressure forging by using a plunger punch for executing a reciprocating motion in a part positioned at the upper side of the mandrel, rotating the part to be forged, and executing successively the pressure forging to the whole periphery. CONSTITUTION:A mandrel 2 is inserted into the inner surface of a part to be forged 1. Subsequently, a down load is applied to a plunger punch 3 by a press, a part positioned in the upper part of the mandrel 2 is brought to a plastic working and forging is executed. Also, in order to perform this forging in the peripheral direction, the plunger punch 3 is drawn up and the part to be forged 1 is rotated in the peripheral direction, and thereafter, the next part is forged by the plunger punch 3. By repeating this work, the part to be forged 1 is forged uniformly. Thereafter, a solution heat treatment is executed, and the inside and the outside diameters are brought to a machine work. In the part to be forged 1, the casting steel material is brought to a pressure forging, and the crystalline structure is fined, therefore, the ultrasonic permeability is improved.

3. 发明专利

JPH04115942A MANUFACTURE OF HEAT INSULATING MEMBER 失效
公开(公告)号：JPH04115942A
公开(公告)日：1992-04-16
申请号：JP23581290
申请日：1990-09-07
申请人： MITSUBISHI HEAVY IND LTD
发明人： NOTOMI HIROSHI , TSUNODA HIDEO , TAKEDA YORIMASA , IGARI TOSHIHIDE , KOTO TOSHIYUKI , KUNISHIMA SHIGERU
IPC分类号： B23K20/00 , B32B15/04 , B32B37/10 , C04B37/02
摘要： PURPOSE:To obtain a heat insulating material having two characteristics of low heat conductivity and processability by inserting a ceramics powder or a ceramics sheet formed by slurry molding or a sintered molded ceramics sheet between a plurality of metal plates so as to leave the bonding surfaces of the metal plates on four peripheral parts thereof and bonding the bonding surfaces of the metal plates by the vacuum rolling thereof. CONSTITUTION:A zirconia powder 3 is accumulated on the surface of an austenite type steel plate 1 in thickness of about 3mm. At this time, the zirconia powder 3 is not accumulated on four peripheral parts of the austenite type steel plate 1 over width of about 10mm and an austenite type steel member 4 having 3mm thickness is placed on these parts and an austenite type steel plate 2 is placed on the member 4. The whole is set to a vacuum rolling apparatus to evacuate the same up to pressure of 3X10 Pa and subsequently heated to 950 deg.C by a high frequency heater to be rolled at rolling speed of 5mm/s under a 6% draft condition. Thereafter, the rolled product is cooled under vacuum to be taken out.

4. 发明专利

JPS6233515A GAS-LIQUID SEPARATOR 失效
公开(公告)号：JPS6233515A
公开(公告)日：1987-02-13
申请号：JP17100985
申请日：1985-08-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAKAHARA TAKAFUMI , HIRAO YASUHIKO , NAKAMORI NOBUO , KOTO TOSHIYUKI
IPC分类号： B04C3/00 , B01D45/08 , B01D45/12
摘要： PURPOSE:To obtain the titled compact and high-performance separator for a steam drum by colliding 2-phase stream at the outlet of a tangential nozzle of the outer cylinder and separating into a gaseous phase and a liq. phase and providing a collision plate for allowing the liq. separated by the corrugated separator to flow along its inner wall. CONSTITUTION:A tangential nozzle 2 is provided to an outer cylinder 1 and a separated liq. is discharged to reduce the flow velocity at the site. A collision plate 3 is furnished at the outlet of the tangential nozzle 2, the separated liq. is struck against the plate and gas and liq. are separated. The separated liq. is allowed to flow down along the collision plate 3 along with the separated liq. flowing out from a corrugated gas-liq. separator 9 and the free falling of the separated liq. at a high speed is prevented. Moreover, a liq. collecting dish 4 is provided and all the separated liq. is collected. The vertical downward vector of the separated liq. is nullified and the inrush of the separated liq. into the liq. surface at a high velocity is prevented.

5. 发明专利

JP2001174591A RADIOACTIVE CONTAMINATED WASTE STORAGE CASK 失效
公开(公告)号：JP2001174591A
公开(公告)日：2001-06-29
申请号：JP35571799
申请日：1999-12-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： ASADA KAZUO , TAN YASUHIRO , KURONO HAYAO , KINOSHITA KENICHI , KOTO TOSHIYUKI
IPC分类号： G21F5/08 , G21F9/36
摘要： PROBLEM TO BE SOLVED: To provide a radioactive contaminated waste storage cask for storing radioactive waste. SOLUTION: This storage cask 10 for storing the radioactive contaminated waste 11 dropped from an elevated place comprises an inner cylinder vessel 12 having an opening formed in the top and storing the dropped radioactive contaminated waste 11 in its inside, and an outer cylinder vessel 14 having an opening formed in the top, internally supporting the inner cylinder vessel 12 vertically movably and having water, or a buffer material 13, arranged in its bottom in the vessel. This cask is so constituted that the inner cylinder vessel 12 is floated on the buffer material 13.

6. 发明专利

JPS6245439A ULTRASONIC PERMEABILITY IMPROVING METHOD FOR STAINLESS STEEL CASTINGS 失效
公开(公告)号：JPS6245439A
公开(公告)日：1987-02-27
申请号：JP18292185
申请日：1985-08-22
申请人： MITSUBISHI HEAVY IND LTD , TOA VALVE , NIPPON STAINLESS STEEL CO
发明人： YAMADA KATSUMI , TOMOMATSU KENICHI , KOTO TOSHIYUKI , MANABE YOSHIHISA , INAGAKI KUNIJI , SHIBATA KENJI , MIZUGUCHI MASAAKI
IPC分类号： C21D7/00 , B21J1/02 , B21K21/12
摘要： PURPOSE:To secure the size accuracy, and to improve the ultrasonic permeability of stainless steel castings by forming thickly a wall thickness of the inside and the outside of a straight pipe-shaped end part of stainless steel castings, performing the forging to the thick wall end part, and thereafter, executing a machine work to match a wall thickness of other part. CONSTITUTION:A thick wall thickness end part 1 is formed in both the inside and the outside of a straight pipe-shaped end part of stainless steel castings. To the part, a local forging is performed by a press, and thereafter, the inside and the outside diameters of the forged part are cut by a machine work to match a wall thickness of other part. In this way, a crystalline structure of the straight pipe-shaped end part of the stainless steel castings is refined, and the ultrasonic permeability is improved.

7. 发明专利

JPH04323600A DAMPING DEVICE FOR DRUM CAN IN LIQUID 失效
公开(公告)号：JPH04323600A
公开(公告)日：1992-11-12
申请号：JP9216691
申请日：1991-04-23
申请人： MITSUBISHI HEAVY IND LTD
发明人： ITO TOMOHIRO , SHINOHARA YOSHIKAZU , AKATSUI MASAHIRO , KOTO TOSHIYUKI , MORI NOBUHISA
IPC分类号： G21F9/36
摘要： PURPOSE:To prevent drum cans piled up in stages from being damaged and collapsing in the event of an earthquake by attaching each ring-shaped band plate to the peripheral edge portion of each of the holes of each porous plate through which surrounding holes are bored dispersely at fixed distances, the ring-shaped band plates surrounding the piled drum cans. CONSTITUTION:Stanchions 2 are erected around drum cans 1 piled up in stages and porous plates 3 are horizontally supported in multistages by each stanchion 2. Ring-shaped band plates 6 surround the drum cans 1 at fixed narrow intervals and holes 3a each of which is larger than each band plate 6 are dispersely bored through each porous plate 3. If an earthquake occurs and the piled drum cans 1 and the band plates 6 are displaced relative to each other, the inertia of water located between each drum can 1 and each band plate 6 acts as pressure on each drum can 1, restraining the movements of each drum can 1 and each band plate 6 relative to each other.

8. 发明专利

JPH04160072A METHOD FOR JOINING METALLIC MATERIAL AND CERAMIC MATERIAL 失效
公开(公告)号：JPH04160072A
公开(公告)日：1992-06-03
申请号：JP28447290
申请日：1990-10-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： KUNISHIMA SHIGERU , KOTO TOSHIYUKI , NOTOMI HIROSHI , TSUNODA HIDEO , IGARI TOSHIHIDE
IPC分类号： B23K20/00 , B23K1/19 , C04B37/02
摘要： PURPOSE:To prevent the peeling, decay, etc., by thermal load by interposing a graded function layer 3, the properties of which change stepwise from a metallic material toward a ceramic material between the metallic material and the ceramic material, and integrally joining these materials by the graded function layer at the time of joining the metallic material and the ceramic material. CONSTITUTION:The graded function layer 3, the properties of which change stepwise from the metallic material 1 toward the ceramic material 2 is interposed between the metallic material 1 and ceramic material 2 to be joined. The more specific example of the graded function layer 3 includes the graded function layer 3 obtd. by mixing the powder of the metallic material 1 and the powder of the ceramic material 2 at varied mixing ratios, solidifying the powder mixture composed of plural kinds varying in the mixing ratio with a binder, producing plural sheets 3a, 3b, 3c and laminating the respective sheets. These materials are then integrally joined by the graded function layer 3. Even if the metallic material 1 and the ceramic material 2 generate a large difference in thermal expansion by receiving a thermal load at the time of sintering, this difference is absorbed and relieved by the graded function layer 3 and the action of a large shearing force, etc., on the joint surface is obviated.

9. 发明专利

JPS62107837A LOCAL FORGING METHOD 失效
公开(公告)号：JPS62107837A
公开(公告)日：1987-05-19
申请号：JP24622285
申请日：1985-11-05
申请人： MITSUBISHI HEAVY IND LTD , TOA VALVE , NIPPON STAINLESS STEEL CO
发明人： KOTO TOSHIYUKI , SHIRAI TASUKU , TOMOMATSU KENICHI , MANABE YOSHIHISA , MIZUGUCHI MASAAKI , SHIBATA KENJI , OSHIMA YOSHIMITSU
IPC分类号： B21J5/00 , B21D31/06 , B21J1/00 , B21J13/02 , G21C17/00 , G21C17/003
摘要： PURPOSE:To secure a prescribed inner diameter and to uniformly forge a whole periphery by inserting a core metal of a prescribed dimension in the part requiring an ultrasonic transmissivity on an austenitic stainless cast steel tubular member. CONSTITUTION:A part 1 to be forged of a valve 7 for a nuclear power plant for example, is placed on a lower tap 4 set on a lower anvil 6. Here, an upper anvil 5 is set on a press. Then, the core metal 2 possessed of the outer diameter matched to the inner diameter of the product is inserted inside the part 1 and then said part is forged by pressing the upper tap 3 through the anvil 5 by the press. In this case, at first, after the part 1 is brought into contact with a coremetal 4 the press force is applied to the part 4 where the taps 3, 4 and the part 1 are brought into contact to forge uniformly regardless of the surface ruggedness. Furthermore, for performing this forging on the peripheral direction, the anvil 5 is lifted to rotate the valve body 7 and then the next part is forged again and this working is repeated.

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