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21. 发明专利

JPH11126620A SEPARATOR FOR FUEL CELL 失效
公开(公告)号：JPH11126620A
公开(公告)日：1999-05-11
申请号：JP28963397
申请日：1997-10-22
申请人： TOYOTA CENTRAL RES & DEV
发明人： NONOYAMA FUMIO , SUZUKI KENICHI , ABE KATSUJI , ASAOKA MASAHIKO
IPC分类号： H01M8/02
摘要： PROBLEM TO BE SOLVED: To provide a separator for a fuel cell excellent in current collecting performance in a use environment and offering no cost problem, by using a metallic material excellent in workability as a base material. SOLUTION: A separator for a fuel cell constituting a solid high-polymer type fuel cell comprises a material made by applying a coating layer composed of Sn, an Sn-containing alloy, an Sn-containing compound, RuO2 , IrO2 , MnO2 , or WC on a surface of a metallic material excellent in corrosion resistance. Because the metallic material is used as a base material, separator press forming workability is excellent and an oxide film formed on the Sn-containing coating layer during use is high in electroconductivity, and current collecting performance is prevented from lowering during use.

22. 发明专利

JPH10180348A MANUFACTURE OF HOLLOW EXTRUDED STOCK 失效
公开(公告)号：JPH10180348A
公开(公告)日：1998-07-07
申请号：JP34107396
申请日：1996-12-20
申请人： TOYOTA CENTRAL RES & DEV
发明人： NONOYAMA FUMIO
IPC分类号： B21C23/14 , B21C25/08
摘要： PROBLEM TO BE SOLVED: To enlarge the degree of freedom in a shape variation, to reduce the load for a movable die and a lower punch and to facilitate the change of a clearance by making movable and transferring at least one of the lower punch and the die provided in the radial direction and varying at least one of the wall thickness and the cross section shape of the material to be worked. SOLUTION: In a radial extruding method, the clearance between the die 1 and the lower punch 4 is changed to vary the wall thickness of the material to be worked by making the lower punch 4 movable and transferring the position. The distance from the center of the material to be worked is changed and the cross section size of a hollow extruded stock is enlarged by separating the round part of the lower surface of the die 1 from the die 1 to make the movable die 7 movable in the radial direction and changing the position wherein the flowing direction of the material to be worked is changed into the axial direction. The wall thickness and the cross section shape of the material to be worked are respectively or simultaneously varied by transferring the position of one or both of the lower punch 4 and the movable die 7.

23. 发明专利

JPH06271955A PRODUCTION OF ALUMINUM ALLOY 失效
公开(公告)号：JPH06271955A
公开(公告)日：1994-09-27
申请号：JP2208994
申请日：1994-01-21
申请人： TOYOTA CENTRAL RES & DEV
发明人： FUJITA HIRONORI , NONOYAMA FUMIO , DANNO ATSUSHI
IPC分类号： B22F1/00 , C22C1/04 , C22C45/08
摘要： PURPOSE:To provide the method for producing a bulky aluminum allay having high strength, high hardness and high heat resistance and utilizable for automobiles, electric apparatus and the other industries. CONSTITUTION:This method for producing an aluminum alloy is constituted of a stage in which the mixed powder of the material to be worked constituted of aluminum and at least one or more kinds of metals and non-metals selected from the groups 4a, 5a, 6a, 7a and 8a and silicon and baron or a green compact obtd. by subjecting the same mixed powder to compacting or a cast material is produced and a stage in which the material to be worked is inserted into a die for working and is repeatedly subjected to plastic deformation in a state in which at least a part of the material to be worked is cramped while it is held to 100 to 400 deg.C in an inert atmosphere to form a metastable phase essentially consisting of an amorphous phase and/or a supersaturated solid solution phase, and this method furthermore includes a stage in which the same aluminum allay is subjected to heating treatment, and a metastable phase and/or a stable phase essentially consisting of intermetallic compounds is finely dispersed therein.

24. 发明专利

JPH0633164A PRODUCTION OF NITRIDE DISPERSED AL ALLOY MEMBER 失效
公开(公告)号：JPH0633164A
公开(公告)日：1994-02-08
申请号：JP20955292
申请日：1992-07-13
申请人： TOYOTA CENTRAL RES & DEV
发明人： NONOYAMA FUMIO , KONDO MIKIO , KAWAURA HIROYUKI
IPC分类号： B22F1/02 , B22F3/20 , C22C1/04 , C22C1/10 , C22C21/06
摘要： PURPOSE:To easily obtain the member having excellent rigidity, strength and wear resistance and stable quality by hot working the powder formed with a nitride in the surface part obtd. by heating Al alloy powder contg. Mg in a nitrogen atmosphere. CONSTITUTION:A large amt. of AlN is formed on the powder surface in a solid phase or half solid phase region of 500 to 600 deg.C when the Al alloy powder contg. the Mg is prepd. and is heated in the nitrogen-contg. atmosphere. The Al alloy powder is plastically deformed and the AlN formed on the surface is finely ground and is dispersed into the Al alloy when the powder formed with the nitride in the surface part is hot worked to the desired phase material. The particle-dispersed Al alloy is produced in the production process for the blank material of the powder in such a manner. Further, the bond between the particles of the Al alloy powder and the bond between the Al alloy and the AlN are intensified and the desired nitride-dispersed Al alloy member is obtd.

25. 发明专利

JPS61177380A FORMATION OF LUBRICATING FILM FOR PLASTIC WORKING 失效
公开(公告)号：JPS61177380A
公开(公告)日：1986-08-09
申请号：JP1771285
申请日：1985-02-02
申请人： TOYOTA CENTRAL RES & DEV
发明人： MIURA FUSAYOSHI , SUZUKI KENICHI , NONOYAMA FUMIO , DANNO ATSUSHI
IPC分类号： C23C22/34
摘要： PURPOSE:To form a lubricating film having superior seizing resistance on the surface of an Al-base material for plastic working by treating the Al-base material with an aqueous soln. of a specified pH contg. a specified amount each of Na ions and F ions and by applying a lubricant. CONSTITUTION:Sodium hydroxide or potassium hydroxide and hydrofluoric acid are dissolved in water to prepare an aqueous soln. of 1.5-4.0pH contg. 0.02-1.0mol/l Na or K ions and 0.02-2.0mol/l F ions. The surface of an Al-base material for plastic working is degreased and treated with the aqueous soln. at about 40-60 deg.C to form a fluoroaluminate-base film. A lubricant is then applied to the surface of the film. Thus, a lubricating film having superior seizing resistance and lubricant retentivity is formed on the surface of the Al-base material by chemical conversion treatment at a low temp. in a short time.

26. 发明专利

JPS60210338A Warm forging method 失效
标题翻译：加热锻造方法
公开(公告)号：JPS60210338A
公开(公告)日：1985-10-22
申请号：JP6820784
申请日：1984-04-05
申请人： Toyota Central Res & Dev Lab Inc
发明人： DANNO ATSUSHI , WATANABE MICHIO , NONOYAMA FUMIO
IPC分类号： B21J3/00 , B21J5/00
摘要： PURPOSE: To prevent initial seizure of dies and to enable continuous forging of a multiple number of times in the stage of forging warm a steel billet by the dies while using a lubricating agent consisting essentially of B
2 O
3 by forging preliminarily the dummy billet consisting of a soft material at a specific temp. in the presence of B
2 O
3 .
CONSTITUTION: The steel billet is warm forged by the dies while the lubricating agent consisting essentially of B
2 O
3 is used. The dummy billet consisting of the soft material such as copper, copper alloy, mild steel or the like is preliminarily forged by ≥1 pieces in the presence of the B
2 O
3 in a 600W850°C range prior to said forging. The steel billet is thereafter subjected continuously to normal forging. The dummy billet of which only the surface in contact with the dies is formed of the soft material such as copper, copper alloy, mild steel or the like may be used as well.
COPYRIGHT: (C)1985,JPO&Japio
摘要翻译：目的：为了防止初始捡取模具，并且在使用基本上由B2O3组成的润滑剂的锻造阶段中锻造锻造阶段期间连续锻造多次，可以预先锻造由柔软的坯料组成的坯料材料在特定温度在B2O3存在下。构成：使用由B 2 O 3组成的润滑剂，将钢坯温度锻造成模具。在所述锻造之前，在B2O3的存在下，在600-850℃的范围内，由铜，铜合金，软钢等软质材料构成的坯料预先锻造= 1。钢坯连续进行正常锻造。也可以使用只有与模具接触的表面由诸如铜，铜合金，软钢等的软质材料形成的虚拟坯料。

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