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21. 发明专利

JPH11229164A REMOVING AGENT FOR TITANIUM ALUMINUM NITRID COATING FILM AND REMOVING METHOD OF TIALN COATING FILM USING THE SAME 失效
公开(公告)号：JPH11229164A
公开(公告)日：1999-08-24
申请号：JP3101998
申请日：1998-02-13
申请人： MITSUBISHI HEAVY IND LTD
发明人： EGAWA TSUNEO , IMAYADO AKIO , HAMASHIMA TAKUMI , MORIMOTO SATOSHI , KOBAYASHI TOSHIRO
IPC分类号： C23F1/00 , C23F1/38
摘要： PROBLEM TO BE SOLVED: To efficiently remove a coating film without generating dry spot on the surface of a base material by using an aq. solution containing hydrogen peroxide and potassium hydroxide in a specific concentration. SOLUTION: A removing agent contains over 5 wt.% potassium hydroxide in addition to hydrogen peroxide. The TiAlN-coating film is removed from a member coated with the coating film without generating the dry spot on the surface of the base material by dipping the member into the removing agent for 30-60 hr. When the temp. of the removing agent is =40 deg.C. The concentration of hydrogen peroxide in the removing agent is preferably 0.1-60% though not particularly limited.

22. 发明专利

JPH10296061A HYDROGEN SEPARATION MEMBRANE AND ITS MANUFACTURE 失效
公开(公告)号：JPH10296061A
公开(公告)日：1998-11-10
申请号：JP10567797
申请日：1997-04-23
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAKANO YOJI , KOBAYASHI TOSHIRO
IPC分类号： B01D53/22 , B01D71/02 , C01B3/56
摘要： PROBLEM TO BE SOLVED: To diminish the generation of a membrane flaw (break) by forming a hydrogen selective permeation membrane and a columnal structural membrane, each of which has a specific thickness on a sheet-like base with a surface flatness and burning or peeling the base. SOLUTION: A hydrogen permeable membrane 8 which is comprised of a Pd-Ag alloy and has a membrane pressure of 0.1-20 μm is formed on a polyethylene film sheet as a base 6 by a vacuum vapor deposition process. In addition, on the hydrogen permeable membrane 8, a columnal Ni structural membrane with a membrane pressure of 40-300 μm such as Co is formed using the vacuum vapor deposition process to create a composite membrane made up of the base 6, the hydrogen permeable membrane 8 and the columnal structural membrane 7. The base 6 of polyethylene film is burned by heating the composite membrane at about 550 deg.C or higher under an atmospheric pressure at a heating furnace. Consequently, a hydrogen permeable membrane composite material made up of the hydrogen permeable membrane 8 and the columnal structural membrane 7 is obtained. The columnal structural membrane 7 possibly breaks when it is 40 μm or less thick. Therefore, the required thickness is preferably 40 μm or more. On the other hand, from the viewpoint of pressure loss, the thickness if preferably 300 μm or less.

23. 发明专利

JPH09255306A HYDROGEN SEPARATING MEMBRANE 失效
公开(公告)号：JPH09255306A
公开(公告)日：1997-09-30
申请号：JP6088396
申请日：1996-03-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： OGAWA MAKOTO , KOBAYASHI TOSHIRO , SUEDA MINORU , MATSUMOTO TAKAHIRO , IMAI TETSUYA , SHIROGANE SHIGENORI , SHIODA HIROSHI , UCHIDA TOSHIYUKI , OTA SHINSUKE
IPC分类号： B01D53/22 , B01D71/02 , C01B3/50
摘要： PROBLEM TO BE SOLVED: To provide a hydrogen separating membrane which can be produced at a lower cost as compared with for a hydrogen separating membrane of the conventional structure, contributes to an improvement in a hydrogen production capacity and from which either of flat plate type and tubular type as product shapes are easily producible. SOLUTION: This hydrogen separating membrane is produced by superposing hydrogen permeable metallic foil on the surface of a metallic porous supporting body formed by superposing metallic reinforcing plates having plural hydrogen flow holes on each other. The holes of the metallic reinforcing plates have rectangular or analogous shapes and are so formed that the major axes of the holes of the metallic reinforcing plates in contact with each other intersect with each other This hydrogen separating membrane is producible at the lower cost than for the hydrogen separating membrane of the conventional structure and contributes to the improvement in the hydrogen production capacity. Further, the easy production of either of the flat plate type and tubular type as the product shapes is possible.

24. 发明专利

JPH0551741A FORMATION OF FILM CONTAINING CUBIC BORON NITRIDE 失效
公开(公告)号：JPH0551741A
公开(公告)日：1993-03-02
申请号：JP20827091
申请日：1991-08-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： YANAGI KENICHI , ROKKAKU TADASHI , KOBAYASHI TOSHIRO , MORIMOTO SATOSHI , OGAWA MAKOTO , WADA TETSUYOSHI , YAMASHITA NOBUKI , WATANABE TOSHIYA
IPC分类号： C23C14/06 , C23C14/32 , C23C14/54
摘要： PURPOSE:To allow the formation of films having adequate thicknesses even on an intricately shaped object by irradiating this object with ions at a specific angle and setting an incident angle in such a manner that the total after the deduction of the amt. of the films formed by the irradiation and the amt. of the films etched by the irradiation attains a required thickness. CONSTITUTION:The object 14 to be formed with the film is irradiated with the ions 11. The object 14 is irradiated with the ions 11 from an incident angle within + or -30 deg. to the normal of the object surface, and by that, the films are successively formed on the respective surfaces of the polyhedron and the films are etched by an ion etching effect in the region where the ion incident angle exceeds + or -30 deg.. The thickness of the film 21 on the flank 17 of the object 14 increases if the incident angle of the ions 11 is within + or -30 deg. but this thickness decreases if the incident angle exceeds + or -30 deg.. The incident angle is successively changed in such a manner that the total after the deduction thereof attains the required thickness. The films having the adequate thicknesses and thickness distribution can be formed even on the intricately shaped object to be formed with the films.

25. 发明专利

JPH0551740A DEVICE FOR FORMING THIN FILM ON SUBSTRATE HAVING COMPLEX SHAPE 失效
公开(公告)号：JPH0551740A
公开(公告)日：1993-03-02
申请号：JP20826991
申请日：1991-08-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： YANAGI KENICHI , KATO MITSUO , ROKKAKU TADASHI , TAGUCHI TOSHIO , KOBAYASHI TOSHIRO , MORIMOTO SATOSHI
IPC分类号： C23C14/32 , C23C14/34 , C23C14/50 , C23C14/54
摘要： PURPOSE:To form a coating film of cubic cBN, etc., on the surface of a substrate having a complex shape. CONSTITUTION:Plural gas ion guns 8 and plural sputtering devices 9 are arranged around a rotating substrate 6 and the angle of irradiation of the substrate 6 with the guns 8 and the devices 9 is regulated so that the amt. of a cubic cBN film formed exceeds the amt. of the film etched at each part of the substrate 6.

26. 发明专利

JPH04214854A FORMATION OF BORON NITRIDE FILM 失效
公开(公告)号：JPH04214854A
公开(公告)日：1992-08-05
申请号：JP40238190
申请日：1990-12-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： ROKKAKU TADASHI , TAGUCHI TOSHIO , KOBAYASHI TOSHIRO , YAMASHITA NOBUKI , MORIMOTO SATOSHI
IPC分类号： C23C14/06
摘要： PURPOSE:To form a BN film having excellent adhesion, at the time of irradiating the surface of the object for film forming having curved surfaces with the ions of B and N, by moving a mask having pares between the source of ions and the object for film forming and rotating the object for film forming. CONSTITUTION:The surface of a cutting tool 1 having a right side face 2, a left corner 3, a nose face 4, a right corner 5 and a right side face 6 is irradiated with B ions and CN ions to form a mixing layer and a cubic BN film in which B and N are dispersed on the surface of the cutting tool and to harden the surface of the cutting tool 1. A mask 7 having a slit 8 and of the same quality as that of the cutting tool or constituted of Ti, TiN, Mo, C or the like is interposed between the cutting tool 1 and the source of B ions and the source of N ions. While the cutting tool 1 is rotated in an (f) direction with an 0 point as the center, the mask 7 is moved in the direction of the arrow (g) to uniformly form a hard cubic BN film on the surface of the cutting tool with tight adhesion by the mixing layer.

27. 发明专利

JPH04120265A BORON NITRIDE COATED MEMBER 失效
公开(公告)号：JPH04120265A
公开(公告)日：1992-04-21
申请号：JP30620490
申请日：1990-11-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： WADA TETSUYOSHI , YAMASHITA NOBUKI , MORITA SHOJI , OGAWA MAKOTO , SHIMOYAMA JINICHI , YAMADA FUKUJI , KOBAYASHI TOSHIRO , MORIMOTO SATOSHI , YANAGI KENICHI
IPC分类号： B23B27/14 , C23C14/06 , C23C16/30 , C23C16/34 , C23C16/511 , C23C30/00
摘要： PURPOSE:To obtain a member having a boron nitride coating film with high adhesion strength which is formed as an outer layer on a substrate with an intermediate layer interposed, by specifying each thickness and total thickness of the boron nitride coating film and intermediate film. CONSTITUTION:On a substrate (e.g. high-speed tool steel), one or more intermediate layers are provided and a coating layer comprising a boron nitride coating film as the outer layer is provided thereon to constitute the boron nitride-coated member. The film thickness is specified to 0.1-10mum for the boron nitride film, 0.001-10mum for the intermediate layer, and the total thickness is specified to 0.5-20mum. The intermediate layer consists of one or more layers of compds. selected from nitrides, carbide-nitrides and aluminum compds. of groups IVa, Va, and VIa. Thus, the boron nitride coated member useful for cutting tools or the like can be obtained.

28. 发明专利

JPH0417682A CUBIC BORON NITRIDE-COATED MEMBER 失效
公开(公告)号：JPH0417682A
公开(公告)日：1992-01-22
申请号：JP12012190
申请日：1990-05-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： WADA TETSUYOSHI , YAMASHITA NOBUKI , MORITA SHOJI , OGAWA MAKOTO , KOBAYASHI TOSHIRO
IPC分类号： B23B27/14 , C23C14/06 , C23C14/32 , C23C16/30 , C23C16/34 , C23C28/04
摘要： PURPOSE:To obtain the cubic boron nitride-coated member having a long service life and excellent wear resistance by providing an intermediate layer of a titanium-aluminum multiple nitride between the surface of a substrate and the outermost layer of cubic boron nitride. CONSTITUTION:A coating layer consisting of cubic boron nitride(CBN) as its outermost layer is provided on the surface of a substrate to obtain a CBN- coated member to be applied to tool members or electronic parts. In this member, an intermediate layer consisting of a titanium-aluminum multiple nitride is provided between the substrate and the outermost layer. If necessary, a multiple nitride obtained by substituting a part or the whole of aluminum for >=1 king among groups IVa and Va metals is used for the intermediate layer in place of the titinium-aluminum multiple nitride. Consequently, a CBN-coated member having a long service life and excellent wear resistance is obtained.

29. 发明专利

JPS63278676A VERTICAL WELDING METHOD FOR CR-MO STEEL 失效
公开(公告)号：JPS63278676A
公开(公告)日：1988-11-16
申请号：JP11009487
申请日：1987-05-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： MIURA YUZURU , KOBAYASHI TOSHIRO
IPC分类号： B23K9/23 , C21D9/50
摘要： PURPOSE:To prevent weld metal from cracking and to improve its toughness by providing a high-speed heating means in the rear of a welding electrode to heat the metal above the specific temperature at the specific heating speed. CONSTITUTION:In the case of performing the vertical welding on a Cr-Mo steel member 1 using the gas shielded arc welding electrode 2, the high-speed heating means 3 is arranged in the rear of the electrode 2 at the time of welding a last layer to heat the weld metal rapidly. At this time, the heating speed of a heating source 3 is made to >=200 deg.C/min and the weld metal is heated up too the temperature above an AC3 transformation point (720-800 deg.C). Since the last layer weld metal 4 is heated to raise the temperature rapidly up to a recrystallization temperature range of the extent of 800-950 deg.C, the occurrence of the cracking of the weld metal 4 is prevented and its structure is made fine. By this method, the occurrence of the cracking of the weld metal 4 is prevented and its toughness is improved.

30. 发明专利

JPS63250450A PRODUCTION OF CERAMIC PARTICLE DISPERSED SURFACE COATING LAYER 失效
公开(公告)号：JPS63250450A
公开(公告)日：1988-10-18
申请号：JP8306187
申请日：1987-04-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： YOSHIDA YASUYUKI , KOBAYASHI TOSHIRO
IPC分类号： C23C4/12
摘要： PURPOSE:To form a ceramic particle dispersed surface coating layer having superior wear and seizing resistance by melting the surface of a sliding member such as machine parts with heat source having high energy density and by adding and injecting ceramic particles coated with the same material as the material of the sliding member. CONSTITUTION:The surface of a sliding member 1 such as machine parts requiring wear resistance is melted by heating with a heat source 2 having high energy density such as laser beams or plasma arc to form a molten pool 6. Particles 4 of hard ceramics such as B4C, WB, TiC, ZrC, NbC, TaC or BN are coated with powder 5 of the same metal as the metal of the sliding member 1 to be treated, and the coated ceramic particles are blown on the molten pool 6 with a gas 3 such as AR or He to form a surface coating layer 5 contg. uniformly dispersed ceramic particles 5. The coating layer 7 bonds firmly to the base sliding member 1 and has superior wear and seizing resistances.

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