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1. 发明专利

JPH07324716A METHOD AND APPARATUS FOR PROCESSING MUNICIPAL DUST 失效
公开(公告)号：JPH07324716A
公开(公告)日：1995-12-12
申请号：JP11863394
申请日：1994-05-31
申请人： MITSUI SHIPBUILDING ENG
发明人： OKUYAMA HAJIME , MURATA TOSHIAKI , ONISHI SHUSAKU
IPC分类号： F23G5/02 , B01D53/68 , B01D53/77 , B09B3/00 , F23G5/00
摘要： PURPOSE:To enable a heat exchanger to be prevented from being decayed with hydrogen chloride with atomization of water into thermal cracking gas and in this case to perform an effective utilization of thermal energy held in the thermal cracked gas during the thermal cracking operation in the case that heat energy of the combustion discharged gas generated upon combustion of thermal decomposed product of municipal dust is recovered through its heat exchanging operation. CONSTITUTION:Municipal dust is thermally decomposed at about 450 deg.C at a first decomposing furnace 1. Thermal decomposed gas generated at the furnace is heated up to about 750 deg.C at a second decomposing furnace 2 and tar generated under a cooling of the thermal decomposed gas to a normal temperature at a wet type cleaning tower 4 is decomposed in advance. Thus, even if the thermal decomposed product is desalted under atomization of water at the wet type cleaning tower 4, there is no occasion that tar substance is discharged to cause a water discharging to be difficult. Heat contained in the thermal decomposing gas discharged out of the second decomposing furnace 2 is recovered by a heat exchanger 3 before its desalting operation and tis is applied as a heating source for the combustion air for a gas combustion furnace 5.

2. 发明专利

JPH0135058B2 失效
公开(公告)号：JPH0135058B2
公开(公告)日：1989-07-24
申请号：JP9518885
申请日：1985-05-02
申请人： MITSUI SHIPBUILDING ENG
发明人： DEGAWA TOORU , SATO TAKASHI , OKUYAMA HAJIME
IPC分类号： C22C1/02 , C22C1/00

3. 发明专利

JPS62267448A FLEXIBLE FE-SI OR FE-AL-SI ALLOY FOIL AND PRODUCTION THEREOF 失效
公开(公告)号：JPS62267448A
公开(公告)日：1987-11-20
申请号：JP11038886
申请日：1986-05-14
申请人： MITSUI SHIPBUILDING ENG
发明人： DEGAWA TORU , OKUYAMA HAJIME , ARAI KENICHI , OMORI KENJI
IPC分类号： B22D11/06 , C22C33/00 , C22C38/00 , C22C38/02 , C22C38/06
摘要： PURPOSE:To obtain the titled alloy foil reduced in impurity content and having extremely superior flexibility, by providing a composition consisting of prescribed percentage of Si, Al, Ca, O, and C and the balance essentially Fe. CONSTITUTION:An Fe alloy containing Si or Al together with Si is melted by heating in a vessel whose internal surface is constituted of CaO refractory material by the conventional method, for example, high-frequency or low-frequency induction heating method, etc., in vacuum or in a nonoxidizing atmosphere such as inert-gas atmosphere, etc., of Ar, etc. As the above CaO refractory material, CaO, larnite (stabilized 2CaO.SiO2), etc., are cited. Then the resulting molten alloy is sprayed through a nozzle by a liquid rapid cooling method, etc., which is fed to the surface of a single or double roll, followed by rapid cooling under nonoxidizing atmosphere. In this way, the desired high- frexibility alloy foil composed of Fe-Si or Fe-Al-Si alloy consisting of 3-15wt% Si, 0-10wt% Al,

4. 发明专利

JPH06130032A COULOMETRY DETECTOR 失效
公开(公告)号：JPH06130032A
公开(公告)日：1994-05-13
申请号：JP27992792
申请日：1992-10-19
申请人： MITSUI SHIPBUILDING ENG
发明人： HAMAMOTO OSAMU , OKUYAMA HAJIME
IPC分类号： G01N27/42
摘要： PURPOSE:To provide a sample passage-type coulometry detector wherein it is excellent in the permeable and diffusing property of a substance under test in a fluid sample, its responsive property is high, its structure is simple and it can be handled easily. CONSTITUTION:In a coulometry detector 1, a working electrode chamber 3 provided with a porous electrode impregnated with an electrolytic solution and a counter electrode chamber 4 are arranged so as to be faced by sandwiching a diaphragm 5. In the coulometry detector 1, a tube 2 composed of at least one kind out of an ion- exchange film, a semipermeable film and a fine porous film is filled into the action pole chamber 1, and a fluid sample is passed inside the tube 2. Consequently, a continuous absolute measurement can be performed, a standard sample or the like is not required at all, a responsive property is excellent because the diffusing efficiency of a substance under test is excellent, and an on-line measurement can be performed in a real-time manner. When a tube material and an electrolytic solution are selected, the substance under test which is contained in a gas, an aqueous solution, a nonaqueous liquid, a slurry or the like can be measured. In addition, it is possible to provide the detector which is maintenance-free for a long time, the detector can be constituted simply and its cost can be lowered.

5. 发明专利

JPS6350412B2 失效
公开(公告)号：JPS6350412B2
公开(公告)日：1988-10-07
申请号：JP20281485
申请日：1985-09-13
申请人： MITSUI SHIPBUILDING ENG
发明人： DEGAWA TOORU , HASHIMOTO AKIO , OKUYAMA HAJIME
IPC分类号： C22B34/14 , C22B9/16 , C22C1/02 , C22C16/00

6. 发明专利

JPS62168641A PRODUCTION OF CALCIA CASTING MOLD 失效
公开(公告)号：JPS62168641A
公开(公告)日：1987-07-24
申请号：JP1091686
申请日：1986-01-21
申请人： MITSUI SHIPBUILDING ENG
发明人： UCHIDA YOSHIHISA , HASHIMOTO AKIO , OKUYAMA HAJIME , DEGAWA TORU
IPC分类号： B22C1/10 , B22C9/12 , H01L21/027 , H01L21/30
摘要： PURPOSE:To prevent deformation and to produce a casting mold having high dimensional accuracy by bringing a molding deformation preventive material into tight contact with at least part of a molding and calcining the molding in the stage of calcining the molding. CONSTITUTION:The molding deformation preventive material 2 is preliminarily packed into a mold and the granular particles of a calcia raw material are tamped and packed into the space part between the inside surface of the mold and the outside peripheral face of the molding deformation preventive material. The molding 1 united with the molding deformation preventive material 2 is calcined by using an electric furnace and the molding deformation preventive material 2 is removed after slow cooling. The calcia casting mold having the excellent dimensional accuracy is thereby easily obtd.

7. 发明专利

JPS6299426A MANUFACTURE OF LOW-SILICON CHROMIUM OR CHROMIUM ALLOY 失效
公开(公告)号：JPS6299426A
公开(公告)日：1987-05-08
申请号：JP23897785
申请日：1985-10-25
申请人： MITSUI SHIPBUILDING ENG
发明人： DEGAWA TORU , UCHIDA YOSHIHISA , OKUYAMA HAJIME
IPC分类号： C22B34/32 , C22C1/06
摘要： PURPOSE:To manufacture low-silicon chromium suitable for use as a target for sputtering by adding S to molten Cr in a vessel lined with a calceous refractory material in a nonoxidizing atmosphere to desiliconize the molten Cr. CONSTITUTION:Molten Cr or a molten Cr alloy in a vessel lined with a calceous refractory material is desiliconized by adding S in a nonoxidizing atmosphere of Ar or the like. The calceous refractory material has >= about 60% CaO content, the molten Cr has >= about 80% purity and the molten Cr alloy has >=about 40% Cr content. Sulfur is preferably added in the form of Cr2S3 or NiS and the amount of S added is made slightly larger than the amount of Si in the molten metal with respect to stoichiometric equiv. Thus, Si in the molten metal is adsorbed in the inner wall of the vessel and removed as CaO.SiO2, so as low Si content can be attained.

8. 发明专利

JPS62240133A CASTING MOLD FOR CASTING TI OR ZR METAL 失效
公开(公告)号：JPS62240133A
公开(公告)日：1987-10-20
申请号：JP8554586
申请日：1986-04-14
申请人： MITSUI SHIPBUILDING ENG
发明人： DEGAWA TORU , MIYAZAKI KAZUAKI , KAMATA KINYA , OKUYAMA HAJIME , KAYANE MIHARU , FUJITA FUSAO
IPC分类号： B22C1/06
摘要： PURPOSE:To eliminate the need for a post treatment such as removal of the contaminated layer of a casting surface and to reduce the cost of a casting mold by providing a coating layer of SiC on the surface of the casting mold for casting Ti or Zr metals which contacts a molten metal. CONSTITUTION:The molten metal does not contact directly the graphite of the graphite mold to be provided with the SiC coating layer during casting and therefore, the low-grade graphite contg. impurities can be used for said mold. At least the surface, which contacts the molten metal, of the graphite mold body is heated to the deposition temp. region of CVD reaction in order to form the SiC coating layer. Since the graphite mold is conductive, high-frequency induction heating is usable to heat the mold and in addition, external heating and laser beam heating are also usable. A CVD reactive gas is supplied to the coating layer forming surface of the heated graphite mold body to cause a CVD reaction, by which the SiC coating layer is deposited on the surface. The CVD reactive gas is exemplified by CH3SiCl3, SiCl4/CH4, etc.

9. 发明专利

JPS6286145A MANUFACTURE OF HIGH CLEANLINESS FE-AL-SI ALLOY 失效
公开(公告)号：JPS6286145A
公开(公告)日：1987-04-20
申请号：JP22545285
申请日：1985-10-09
申请人： MITSUI SHIPBUILDING ENG
发明人： DEGAWA TORU , OKUYAMA HAJIME , SATO TAKASHI , UCHIDA YOSHIHISA , HASHIMOTO AKIO , EBATA MAKOTO , FUJIWARA KOZO
IPC分类号： C22C33/04
摘要： PURPOSE:To obtain a high cleanliness Fe-Al-Si alloy especially suitable for use as a high purity material for 'Sendust(R)' by adding Si to Fe and Al melted in a vessel lined with a calceous refractory material in vacuum or a nonoxidizing atmosphere. CONSTITUTION:Fe and Al put in a vessel lined with a calceous refractory material are melted in vacuum or a nonoxidizing atmosphere of gaseous Ar or the like. Si is then added to the molten Fe and Al to obtain a high cleanliness Fe-Al-Si alloy having a composition consisting of 3-8wt% Al, 5-12wt% Si and the balance Fe and contg. little nonmetallic inclusion. By this invention, the Fe-Al-Si alloy having low O, N, S and C contents is easily obtd. The alloy has extremely superior magnetic characteristics, workability, corrosion and wear resistances.

10. 发明专利

JPS6263625A PRODUCTION OF ZR OR ZR ALLOY 失效
公开(公告)号：JPS6263625A
公开(公告)日：1987-03-20
申请号：JP20281485
申请日：1985-09-13
申请人： MITSUI SHIPBUILDING ENG
发明人： DEGAWA TORU , HASHIMOTO AKIO , OKUYAMA HAJIME
IPC分类号： C22B34/14 , C22B9/16 , C22C1/02 , C22C16/00
摘要： PURPOSE:To produce Zr or Zr alloy which contains C and O2 at an extremely low ratio and has high purity by using a CaO furnace material having high purity as a vessel and melting the Zr or Zr alloy in a non-oxidative atmosphere in the stage of melting the Zr or Zr alloy. CONSTITUTION:The high-purity CaO furnace material consisting of the compsn. contg. >99wt% CaO, =20% Zr is melted in the non- oxidative atmosphere similar to the above-mentioned atmosphere in the vessel having the high-purity CaO furnace material contg. >99wt% CaO,

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