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41. 发明专利

JP2013252550A METHOD OF MANUFACTURING TITANIUM INGOT 审中-公开
公开(公告)号：JP2013252550A
公开(公告)日：2013-12-19
申请号：JP2012130729
申请日：2012-06-08
申请人： KOBE STEEL LTD
发明人： YOKOYAMA HIROSHI , ISHIDA HITOSHI , KANEHASHI HIDEKATSU , TAKAHASHI DAIKI , YASHIKI TAKASHI , UKITA SHUSUKE
IPC分类号： B22D27/02 , B22D21/06 , C22B9/20 , C22B34/12
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a titanium ingot in which rotation of generation of arc is promoted to efficiently dissolve a consumable electrode, thereby preventing a casting surface defect of a casting.SOLUTION: In a method of manufacturing a titanium ingot in which arc melting treatment that dissolves a consumable electrode 3 by generating arc between the consumable electrode 3 containing titanium and a mold 2 is performed twice to manufacture a titanium ingot; a raw material containing Cl is supplied by a side charge at the arc melting treatment of a first time so that at least 0.02 mass% of Cl may remain in a first ingot after the arc melting treatment of the first time.

42. 发明专利

JP2000248324A CORROSION RESISTANT Ti ALLOY 失效
公开(公告)号：JP2000248324A
公开(公告)日：2000-09-12
申请号：JP36547699
申请日：1999-12-22
申请人： KOBE STEEL LTD
发明人： YASHIKI TAKASHI , OYAMA HIDETO
IPC分类号： C22C14/00
摘要： PROBLEM TO BE SOLVED: To provide a Ti alloy less expensive than the presently used Ti-0.15Pd alloy and having excellent corrosion resistance and also to provide a corrosion resistant Ti alloy having cold workability (press workability) equal or superior to that of the Ti-0.15Pd alloy and further a corrosion resistant Ti alloy excellent also in hydrogen absorption resistance. SOLUTION: The Ti alloy excellent in corrosion resistance can be obtained by providing a composition consisting of, by mass (the same applies to the following), 0.020-0.050% Pd, one or more platinum group elements other than Pd in an amount one-third (in mass ratio) the amount of Pd or more, and the balance permissible components and Ti. To obtain the corrosion resistant Ti alloy excellent in cold formability, it is desirable to provide a composition consisting of 0.020-0.050% Pd, 0.01-0.03% Ir and/or Pt,

43. 发明专利

JPH08291397A METHOD FOR PICKLING TITANIUM PLATE 失效
公开(公告)号：JPH08291397A
公开(公告)日：1996-11-05
申请号：JP9383995
申请日：1995-04-19
申请人： KOBE STEEL LTD
发明人： YASHIKI TAKASHI , OYAMA HIDETO , TANAKA MASANORI , NARAMOTO SHINICHI
IPC分类号： C23G1/12 , C23G1/10 , C23G3/00
摘要： PURPOSE: To make it possible to prevent or decrease the acid burns (brown colored speckles) in pickling of a titanium sheet by a simple means without having problems as in the case in which a means for freshly adding a chelate material to a pickling liquid is used. CONSTITUTION: This method for pickling the titanium sheet 2 comprises successively immersing the titanium sheet 2 into the pickling liquid 9 contg. hydrofluoric acid and pickling the titanium sheet while allowing the titanium sheet to travel, then wringing the titanium sheet to get rid of the liquid adhered thereon with wringer rolls 5, 6 and washing the sheet by water sprays 14. One or >=2 of the followings are executed in this method. To allow the pickling liquid in the region from an exit side position A where the titanium sheet emerges from the inside of the pickling liquid to the position of >=1m forward of this position to flow at a flow velocity of >=10cm/sec in a direction perpendicular to the traveling direction 1 of the titanium sheet; to spray the water onto the surfaces of the titanium sheet between the exit side position A and the wringer rolls 5, 6 and to supply the water to the surfaces of the wringer rolls 5, 6.

44. 发明专利

JPH06248450A HIGH CORROSION RESISTANT SURFACE MODIFIED TI OR TI BASE ALLOY MEMBER 失效
公开(公告)号：JPH06248450A
公开(公告)日：1994-09-06
申请号：JP3580693
申请日：1993-02-24
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , SUGIZAKI YASUAKI , YASUNAGA TATSUYA , KAWADA KAZUHISA , YASHIKI TAKASHI
IPC分类号： C22C14/00 , C23C14/14 , C23C14/16 , C23C14/48
摘要： PURPOSE:To produce a Ti or Ti alloy member provided with a surface treated layer excellent in corrosion resistance by forming a phosphorus enriched layer on the surface of a Ti or Ti allay member by an ion implanting method. CONSTITUTION:On the surface of a member by pure Ti or a Ti allay such as Ti 6Al-4V, Ti-15Mo-5Zr and Ti-15Mo-5Zr-3Al, P is implanted in the ratio of >=5X10 ion/cm by a high energy ion implanting method to form a P enriched layer on the surface of the member made of the Ti or Ti allay. The surface treated Ti or Ti alloy member high in corrosion resistance even in a nonoxidizing and oxidizing acid soln. of hydrochloric acid, sulfuric acid, nitric acid or the like and free from the deterioration in machinability can be obtd.

45. 发明专利

JPH0578820A TIN COATED TI MEMBER HAVING HIGH CORROSION RESISTANCE 失效
公开(公告)号：JPH0578820A
公开(公告)日：1993-03-30
申请号：JP24351191
申请日：1991-09-24
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , TOMARI HARUO , SUGIZAKI YASUAKI , YASHIKI TAKASHI
IPC分类号： C23C14/06 , C23C14/34
摘要： PURPOSE:To obtain a TiN coated Ti member having excellent corrosion resistance in a nonoxidizing environment and capable of expecting improvement of corrosion resistance in gaseous halogen. CONSTITUTION:A TiN coating film is formed on a Ti member by dry coating to obtain a TiN coated Ti member. The TiN coating film has crystal orientation at (111) faces and >=0.2 ratio of the peak intensity I(200) of (200) face by X-ray diffraction to the peak intensity I(111) of (111) faces.

46. 发明专利

JPH0570927A TIN COATED TI MEMBER HAVING HIGH CORROSION RESISTANCE AND PRODUCTION OF IT 失效
公开(公告)号：JPH0570927A
公开(公告)日：1993-03-23
申请号：JP23834691
申请日：1991-09-18
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , TOMARI HARUO , SUGIZAKI YASUAKI , YASHIKI TAKASHI
IPC分类号： C23C14/06 , C23C14/34 , C23C16/34
摘要： PURPOSE:To provide a Ti member having excellent corrosion resistance. CONSTITUTION:A TiN coating film having >=0.8 atomic ratio of N to Ti is formed on a Ti member by reactive sputtering to obtain a TiN coated Ti member having excellent corrosion resistance in a nonoxidizing environment and capable of expecting the improvement of corrosion resistance in gaseous halogen.

47. 发明专利

JPH04301067A METHOD FOR FORMATION OF TITANIUM BORIDE FILM 失效
公开(公告)号：JPH04301067A
公开(公告)日：1992-10-23
申请号：JP9131791
申请日：1991-03-28
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , NISHIMOTO HIDETOSHI , SUGIZAKI YASUAKI , YASUNAGA TATSUYA , YASHIKI TAKASHI , UEDA KEIJI
IPC分类号： C23C14/06
摘要： PURPOSE:To offer the method of forming a titanium boride film having high hardness and excellent adhesivity to a metal base by using dynamic ion mixing method. CONSTITUTION:A titanium boride film is formed on a metal base material by simultaneously effecting vapor deposition of boron and titanium ion implantation, or vapor deposition of titanium and boron ion implantation. Conditions of ion implantation and vapor deposition are controlled so that the ration of vapor deposition boron atom to injected titanium ion(B/Ti) ranges from 1.0 to 2.5 for the former method and that the ration of implanted boron atom to vapor deposited titanium atom(B/Ti) ranges 1.5 to 2.5 for the latter method.

48. 发明专利

JPH04279708A ENGINE VALVE 失效
公开(公告)号：JPH04279708A
公开(公告)日：1992-10-05
申请号：JP4165091
申请日：1991-03-07
申请人： KOBE STEEL LTD
发明人： NISHIMOTO HIDETOSHI , SUGIZAKI YASUAKI , UMEI KENJI , TERADA YOSHINORI , YASUNAGA TATSUYA , UEDA KEIJI , YASHIKI TAKASHI
IPC分类号： C25D5/26 , F01L3/02 , F02B1/04
摘要： PURPOSE:To provide an engine valve which is made of a material of low density, provided with a superior abrasion-proof characteristic, and at the same time, capable of being manufactured without causing deformation due to thermal strain. CONSTITUTION:An engine valve is made of a titanium alloy material and of which surface is coated with an electrically-plated Ni-P layer. The engine valve is characterized by that the surface of the titanium alloy material is electrically plated so that Ra may be 0.5mum or above, and PPI50 may be 130 respectively, and also characterized by that the Vickers hardness Hv of the electrically-plated Ni-P layer may be 400 or above, its thickness may range between 10 and 500mum, and the P content may range between 0.5 and 0.7wt.% respectively.

49. 发明专利

JPH09165697A PATINA COPPER SHEET LIKE COLORED TITANIUM OR TITANIUM ALLOY MATERIAL AND ITS PRODUCTION 失效
公开(公告)号：JPH09165697A
公开(公告)日：1997-06-24
申请号：JP13884596
申请日：1996-05-31
申请人： KOBE STEEL LTD
发明人： YASHIKI TAKASHI , YAMAMOTO YOSHITAKA
IPC分类号： C25D11/26
摘要： PROBLEM TO BE SOLVED: To produce a patina copper sheet like colored Ti material or Ti alloy material having a color tone extremely similar to that of a patina copper sheet and useful as the roof material for shrines and temples or the like and to provide a useful method for producing the colored Ti material or Ti alloy material. SOLUTION: The surface of a substrate composed of Ti or a Ti alloy is subjected to roughening treatment such as pickling, sand blasting treatment, shot blasting treatment, honing treatment or rolling treatment using dull rolls, then, the glosiness in the surface at the time of being measured at the incident angle of 45 degrees and at the light receiving angle of 45 degrees is regulated to

50. 发明专利

JPH09157872A TITANIUM OR TITANIUM ALLOY MEMBER HAVING BEAUTIFUL SURFACE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH09157872A
公开(公告)日：1997-06-17
申请号：JP31837095
申请日：1995-12-06
申请人： KOBE STEEL LTD
发明人： YASHIKI TAKASHI
IPC分类号： C23G1/12 , C23G1/10 , C23G3/00
摘要： PROBLEM TO BE SOLVED: To prevent acid burning by repickling a titanium (alloy) member in which colored spots are produced by pickling and substantially removing only an oxidized film on the surface while the dissolution of the titanium (alloy) base is suppressed. SOLUTION: A titanium (alloy) member in which colored spots are generated by pickling is immersed in an aq. soln. of 5 to 70 deg.C soln. temp. contg., by weight, 0.1 to 5% hydrofluoric acid and 0.5 to 30% nitric acid for 1 to 30sec and is repickled. In the case the content of acid exceeds the upper limit, titanium ions and titanium fluoride ions are excessively formed to regenerate acid burning. In the case the content of acid is made smaller than the upper limit value, it takes a long time for removing an oxidized film. As for another method, it is immersed in an aq. soln. of 5 to 100 deg.C soln. temp. contg. 0.1 to 80% sulfuric acid for 1 to 300sec and is repickled. Sulfuric acid has high capacity of dissolving the oxidized film of titanium. In the case the content of acid exceeds the upper limit value, its oxidizability is made high, and the capacity of removing the oxidized film of titanium is deteriorated.

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