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21. 发明专利

JPH0539598A TREATING DEVICE FOR USED MOLTEN SALT BATH 失效
公开(公告)号：JPH0539598A
公开(公告)日：1993-02-19
申请号：JP21788191
申请日：1991-08-03
申请人： SUMITOMO METAL IND , MITSUBISHI HEAVY IND LTD
发明人： SETO HIROHISA , TSUDA TETSUAKI , YAMAMOTO YASUHIRO , UCHIDA JUNICHI , ABE MASARU , FUKUI KUNIHIRO , YONEDA JUNKICHI , HASHIMOTO RITSUO , TAGUCHI TOSHIO
IPC分类号： C25D3/66 , C25C7/06 , C25D21/18
摘要： PURPOSE:To provide a compact device with which used molten salt can be rapidly and properly treated without requiring a large space for treatment. CONSTITUTION:The treating device for used molten salt bath consists of a reserving tank 2 for used molten salt 1 and a water tank 3 to dissolve the molten salt. These tanks are connected with a transporting tube 5 for the molten salt equipped with at least one flow controlling valve 4. The water tank 3 is equipped with devices 6, 13, 12 to replenish and circulate water.

22. 发明专利

JPH05171393A HOT-DIP AL PLATED STEEL EXCELLENT IN WET CORROSION RESISTANCE 失效
公开(公告)号：JPH05171393A
公开(公告)日：1993-07-09
申请号：JP34522091
申请日：1991-12-26
申请人： SUMITOMO METAL IND
发明人： SETO HIROHISA , TSUDA TETSUAKI , YAMAMOTO YASUHIRO , UCHIDA JUNICHI , FUKUI KUNIHIRO
IPC分类号： C23C2/12
摘要： PURPOSE:To obtain a material improved in wet corrosion resistance and workability and suitable for automotive exhaust system parts by applying hot- dip Al plating contg. prescribed ratios of Si, Mn and Al to the surface of a steel. CONSTITUTION:The objective hot-dip Al plated steel is formed by applying a hot-dip Al plated layer to the surface of a steel (such as Cr-contg. steel, stainless steel and low carbon steel). The hot dip Al is constituted of, by weight, 0.1 to 15% Si and 0.1 to 10% Mn, and the balance Al. This plated steel is excellent in wet corrosion resistance and is suitable for an automotive exhaust system material, particularly, for a muffler.

23. 发明专利

JPH0525561B2 失效
公开(公告)号：JPH0525561B2
公开(公告)日：1993-04-13
申请号：JP23169083
申请日：1983-12-08
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO YASUHIRO , AKASAKA KYOSHI
IPC分类号： B21B1/22 , B21B1/38 , B23K20/04

24. 发明专利

JPH04254600A METHOD FOR REFINING ALUMINUM CHLORIDE-BASED MOLTEN SALT ELECTROLYTE BATH 失效
公开(公告)号：JPH04254600A
公开(公告)日：1992-09-09
申请号：JP1352191
申请日：1991-02-04
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO YASUHIRO , TSUDA TETSUAKI , UCHIDA JUNICHI , SETO HIROHISA , ABE MASARU , KURAHO HIROFUMI
IPC分类号： C25C3/06 , C25C7/06 , C25D3/66 , C25D21/18 , H01M10/39
摘要： PURPOSE:To prolong the service life of an aluminum chloride-based molten salt electrolyte bath by specifying the aluminum chloride content of the bath and removing the precipitated insolubles from the bath. CONSTITUTION:The composition of a two or multiple-component molten salt electrolyte bath contg. aluminum chloride and at least other chlorides such as NaCl is adjusted by heating the bath and so on so that the aluminum chloride content is controlled to

25. 发明专利

JPH0375351A SEAWATER CORROSION RESISTING AL-MN ALLOY THERMALLY SPRAYED STEEL STOCK 失效
公开(公告)号：JPH0375351A
公开(公告)日：1991-03-29
申请号：JP21035589
申请日：1989-08-15
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO YASUHIRO , TSUDA TETSUAKI , UCHIDA JUNICHI , SETO HIROHISA
IPC分类号： C23C4/08 , C22C21/00
摘要： PURPOSE:To obtain a seawater corrosion resisting Al-Mn thermally sprayed steel stock having high corrosion resistance and long-term stability in a seawater atmosphere and also excellent in design characteristics by forming, by thermal spraying, an Al-Mn alloy coating layer on the surface of a steel stock and further subjecting the resulting thermally sprayed layer to sealing treatment. CONSTITUTION:The surface of a steel stock for use in a highly corrosive atmosphere, such as seawater atmosphere, is subjected to descaling and surface roughening treatments by means of shot blasting treatment, etc. Subsequently, an Al-Mn alloy containing 1-40wt.% Mn is thermally sprayed on the above surface by means of plasma spraying, etc. Then, the above steel stock having the resulting thermally sprayed layer of Al-Mn alloy is immersed into a treatment solution of sulfuric acid, phosphoric acid, etc., and subjected to anodic oxidation treatment to undergo the formation of colored anodic oxidation film, and then, fine pores in the anodic oxidation film are sealed by means of vapor sealing, epoxy resin, water glass, etc. By this method, the Al-Mn alloy thermally sprayed steel stock having design characteristics and excellent in corrosion resistance and stability to seawater can be obtained.

26. 发明专利

JPH0270075A METHOD FOR REVEALING GRAIN BOUNDARY OF GAMMA-STAINLESS STEEL 失效
公开(公告)号：JPH0270075A
公开(公告)日：1990-03-08
申请号：JP21927888
申请日：1988-09-01
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO YASUHIRO , YAMAZAKI AKIHIKO
IPC分类号： C23C8/18 , C23F1/00 , C23F1/28 , G01N1/32
摘要： PURPOSE:To distinctly reveal the gamma-grain boundary by polishing the surface of a gamma-stainless steel, carburizing the steel under a specified condition, then again polishing the steel, and dip-etching the steel with a liq. etchant capable of preferentially etching the grain boundary and having a low etching rate. CONSTITUTION:The surface of a sample gamma-stainless steel is buffed to facilitate the infiltration of C in carburization. The sample is then carburized at 550-925 deg.C for 6hr, and C is forcedly infiltrated into the grain boundary in the temp. region where recrystallization is not caused to impart C segregation. The sample is then again buffed to the extent that the carburized region is not removed. The sample is subsequently dip-etched with a liq. etchant capable of preferentially etching the grain boundary. An etchant consisting of about 5cc of hydrochloric acid, about 1g of picric acid, about 100cc of alcohol, and about 2cc of a surfactant and having a low etching rate is appropriately used as the etchant. By this method, gamma-grain boundary is distinctly revealed and the mechanical characteristics of stainless steel can be clarified.

27. 发明专利

JPS61172603A ROLLING OF STEEL THICK PLATE 失效
公开(公告)号：JPS61172603A
公开(公告)日：1986-08-04
申请号：JP1491785
申请日：1985-01-29
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO YASUHIRO
IPC分类号： B21B1/38 , B21B1/06 , B21B37/26
摘要： PURPOSE:To obtain a different-thickness rolling stock excellent in flatness and yield, by lowering the number of revolutions of rolls and controlling roll crowns in accordance with a load variation, at the time of changing a roll gap. CONSTITUTION:A heated slab is rolled by a conventional method into a rolling stock 1 of plate thickness t0. Next, a roll opening is set so as to obtain a plate thickness t1, and the number of revolutions of roll is set to ordinary about 50-80rpm to roll the stock 1 from its front end into the length of LT. At that time, the number of revolutions of roll is lowered to

28. 发明专利

JPH10180335A WEB GUIDING DEVICE 失效
公开(公告)号：JPH10180335A
公开(公告)日：1998-07-07
申请号：JP34698896
申请日：1996-12-26
申请人： SUMITOMO METAL IND , KYOEI SEITETSU KK , HITACHI SHIPBUILDING ENG CO
发明人： OCHI KAZUHITO , MATSUMOTO YOSHIMASA , TAGUCHI SHIGERU , MIHARA TETSUJI , YAMAMOTO YASUHIRO , SUDO KENJI
IPC分类号： B21B39/00 , B21B1/08 , B21B1/088 , B21B39/14 , B21B39/16
摘要： PROBLEM TO BE SOLVED: To provide such a web guiding device as capable of changing a roll and changing the width of the web guide without attaching and detaching the web guide. SOLUTION: This device is arranged in the inlet side and the outlet side of the universal rolling mill for finishing a wide flange shape. And a pair of upper and lower web guide main bodies 18 is respectively and separately attached to an upper ascending and descending frame 8a and a lower ascending and descending frame 8b via parallel link mechanisms 9a, 9b rocking in the direction separating from a rolling mill 2 with a hydraulic cylinder, whereby the web guide main body 18 is made to be able to retreat and transfer. Upper and lower web guide main bodies 18 are respectively divided into three in the width direction, and at least the web guide positioning in both sides of the divided one are made to be able to transfer in the width direction with respective cyclo-motors 12a, 12b.

29. 发明专利

JPH0693495A DARK COLOR PLATED METALLIC MATERIAL AND ITS PRODUCTION 失效
公开(公告)号：JPH0693495A
公开(公告)日：1994-04-05
申请号：JP24506192
申请日：1992-09-14
申请人： SUMITOMO METAL IND
发明人： UCHIDA JUNICHI , YAMAMOTO YASUHIRO , SETO HIROHISA , USUKI TOMOAKI
IPC分类号： C23C28/00 , C25D5/48
摘要： PURPOSE:To impart a dark color to Al-Mn alloy plating so that the surface of the plating is made almost free from irregularity in color and decoloring and has satisfactory darkness. CONSTITUTION:An Al-Mn alloy plated metallic material is immersed in an alkaline aq. soln. at >=80 deg.C for several sec to form a coating film based on Mn oxide and/or Mn hydroxide and contg. >=50 atomic % Mn based on the total amt. of metallic elements in the film in >=0.05mum thickness on the surface of the Al-Mn alloy plating and the objective dark color plated metallic material is produced.

30. 发明专利

JPH0613754B2 失效
公开(公告)号：JPH0613754B2
公开(公告)日：1994-02-23
申请号：JP21927888
申请日：1988-09-01
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO YASUHIRO , YAMAZAKI AKIHIKO
IPC分类号： C23C8/18 , C23F1/00 , C23F1/28 , G01N1/32

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