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21. 发明授权

EP3187600B1 STAINLESS-STEEL-SPRING PRODUCTION METHOD 有权
公开(公告)号：EP3187600B1
公开(公告)日：2019-11-20
申请号：EP15827205.4
申请日：2015-08-03
申请人： NHK SPRING CO., LTD. , SUZUKI-SUMIDEN STAINLESS STEEL WIRE CO., LTD.
发明人： KANEYASU, Mitsutoshi , SUDO, Toshiaki , KANNO, Fumito , ENOKIDA, Hiroyuki
IPC分类号： C21D9/02 , C21D1/06 , C21D7/06 , C22C38/00 , C22C38/58 , C23C8/26 , C22C38/04 , C21D8/06 , C22C38/02 , C22C38/44 , F16F1/02 , F16F1/06 , B21F3/02 , B21C1/00

22. 发明公开

EP3527685A1 APPARATUS FOR PRODUCTION OF A COIL SPRING 有权
公开(公告)号：EP3527685A1
公开(公告)日：2019-08-21
申请号：EP19161523.6
申请日：2012-07-26
申请人： NHK Spring Co., Ltd.
发明人： IKAI, Kazuya , SHIRAISHI, Tohru , ONO, Yuichiro , ONO, Yoshiki
IPC分类号： C22C38/04 , C22C38/54 , B24C1/10 , C21D7/06 , C21D9/02 , F16F1/06 , B21F35/00 , C21D8/06 , C22C38/02 , C22C38/18 , C22C38/24 , C22C38/34 , C22C38/46 , F16F1/02
摘要： By giving an appropriate compressive residual stress to a wire material, a compression coil spring having high durability can be provided even using an inexpensive wire material. The present invention provides a compression coil spring formed by using a steel wire material, the steel wire material consisting of C: 0.45 to 0.85 mass%, Si: 0.15 to 2.5 mass%, Mn: 0.3 to 1.0 mass%, Fe and inevitable impurities as a remainder, and a circle-equivalent diameter of 1.5 to 9.0 mm, wherein hardness of a freely selected cross-section of the wire material is 570 to 700 HV, and at an inner diameter side of the coil spring, unloaded compressive residual stress at a depth of 0.2 mm from a surface in an approximate maximal main stress direction in a case in which compressive load is loaded on the spring is 200 MPa or more, and unloaded compressive residual stress at a depth of 0.4 mm from surface is 100 MPa or more.

23. 发明授权

EP2849920B1 MANUFACTURING PROCESS FOR AEROSPACE BEARING ROLLING ELEMENTS 有权转让
公开(公告)号：EP2849920B1
公开(公告)日：2019-06-12
申请号：EP13790177.3
申请日：2013-04-12
申请人： United Technologies Corporation
发明人： CHIN, Herbert, A. , OGDEN, William, P. , HALUCK, David, A. , MCCUTCHAN, Sean , SPITZER, Ronald, F. , KELLER, Allen, V.
IPC分类号： B24B39/04 , C21D1/76 , C21D9/36 , C23C8/26 , C23C8/50 , F16C33/12 , B24B11/02 , B24B19/06 , B24B1/00 , C21D7/06 , C21D9/40 , C23C8/02 , C23C8/36 , C23C8/80 , F16C33/32 , B24B31/02

24. 发明授权

EP2623615B1 Preventive maintenance method and apparatus for a structural components in a reactor pressure vessel 有权
公开(公告)号：EP2623615B1
公开(公告)日：2019-03-27
申请号：EP13152978.6
申请日：2013-01-29
申请人： Hitachi-GE Nuclear Energy, Ltd.
发明人： Soda, Takashi , Kanno, Akihiro , Murakami, Nobuo , Yoshikubo, Fujio
IPC分类号： C21D7/06 , B23P9/04 , C21D9/08 , F16L55/18 , G21C21/00

25. 发明公开

EP3450577A1 COMPONENT MANUFACTURING METHOD AND COMPONENT 有权
公开(公告)号：EP3450577A1
公开(公告)日：2019-03-06
申请号：EP18191130.6
申请日：2018-08-28
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： SERIZAWA, Kazumi , YANO, Haruka
IPC分类号： C21D7/06 , C21D9/00 , C21D1/09 , C21D10/00
摘要： A component manufacturing method includes: disposing, in a fluid (55), an unprocessed component (61) having a hole (30) that has an opening (22) in an outer surface (21) of the unprocessed component (61); creating a flow of the fluid (55) such that air bubbles resulting from laser peening performed by irradiating an inner wall (32) of the hole (30) of the unprocessed component (61) with a laser beam (40) in the fluid (55) flow along the hole (30); setting an irradiation area of the laser beam (40) in an inner surface (31) of the hole (30); and in the fluid (55) of which the flow has been created, irradiating the irradiation area with the laser beam (40) from the side of the outer surface (21) through the opening (22).

26. 发明公开

EP3416770A1 PROCÉDÉ ET DISPOSITIF DE FABRICATION D'UNE PIÈCE PAR DÉPÔTS SUCCESSIFS DE COUCHES 有权
公开(公告)号：EP3416770A1
公开(公告)日：2018-12-26
申请号：EP17710595.4
申请日：2017-02-17
申请人： SAFRAN
发明人： CORNU, Daniel , BADREDDINE, Jawad , DESSOLY, Vincent
IPC分类号： B22F3/105 , B29C67/00 , C21D9/50 , B23K26/342 , C21D7/06 , B22F3/16
CPC分类号： B22F3/1055 , B22F2003/1056 , B22F2003/166 , B23K26/144 , B23K26/342 , B23K2101/001 , B29C64/118 , B33Y10/00 , B33Y30/00 , C21D7/06 , C21D9/50 , Y02P10/295
摘要： Method for manufacturing at least one portion of a part using successive deposition of layers, said method involving the steps of: a) depositing a first layer (110) of a molten metal on a substrate (80) such that a first metal strip is formed on the substrate; b) depositing a second layer of a molten metal on the first strip such that a second metal strip is formed on the first strip; and c) repeat steps a) and b) for each new metal layer to be deposited on a preceding strip until the at least one portion of the part has been formed; characterized in that after n deposition steps, where n is greater than or equal to 1, the method includes a compression step in which the obtained strip is compressed, and in that the compression takes place in the hot state, i.e. before the strip has entirely cooled down.

27. 发明授权

EP2659010B1 TRAITEMENT DE SURFACE D'UNE PIECE MÉTALLIQUE PAR GRENAILLAGE OBLIQUE 有权
标题翻译：一种金属片的斜面凹陷表面处理
公开(公告)号：EP2659010B1
公开(公告)日：2018-03-28
申请号：EP11815553.0
申请日：2011-12-29
申请人： Winoa
发明人： PREZEAU, Tony , MULLER, Teddy , SAMUEL, Joan
IPC分类号： C21D7/06 , B82Y40/00 , B24C1/10 , B24C3/00 , B24C5/02
CPC分类号： B24C1/10 , B24C3/00 , B24C5/02 , C21D7/06

28. 发明公开

EP3241644A4 RESIDUAL STRESS EVALUATION METHOD 有权
公开(公告)号：EP3241644A4
公开(公告)日：2018-01-31
申请号：EP15881136
申请日：2015-04-21
申请人： MITSUBISHI HEAVY IND LTD
发明人： OGAWA NAOKI , OCHI MAYUMI , HORI NOBUYUKI
IPC分类号： G01N3/40 , B23P9/04 , B24C1/10 , C21D7/06 , G01N3/32 , G06F17/50
CPC分类号： C21D7/06 , B23P17/00 , B24C1/10 , G01L5/0047 , G01N3/32 , G01N3/40 , G01N2203/0212 , G01N2203/0216 , G06F17/50 , G06F17/5009
摘要： A method of evaluating a residual stress, comprising includes: a condition setting step of setting a processing condition of water jet peening for a processing target; an analysis step of analyzing a jet flow when a fluid is injected from a nozzle model to a processing target model in accordance with the processing condition, and obtaining a void fraction which is a volume fraction of bubbles contained in a unit volume of the fluid, and a collapse fraction, which is a volume fraction of the bubbles which collapse in a unit time in the unit volume of the fluid, at each position on a surface of the processing target model; an impact pressure correlation value calculating step of obtaining an impact pressure correlation value, which is a product of the void fraction and the collapse fraction at each position; an experimental value acquisition step of obtaining an impact pressure experimental value, which is an experimental value of an impact pressure applied to a surface of the processing target due to the water jet peening under the processing condition; a prediction step of obtaining an impact pressure predicted value, which is a predicted value of the impact pressure applied to each position on the surface of the processing target due to the water jet peening under the processing condition, by associating the impact pressure correlation value at each position on the surface of the processing target model with the impact pressure experimental value applied to the surface of the processing target by the water jet peening under the processing condition; and a residual-stress evaluation step of calculating a residual stress of the processing target after the water jet peening under the processing condition by using the impact pressure predicted value obtained in the prediction step as an input condition.

29. 发明公开

EP3150880A4 SUSPENSION SPRING DEVICE AND SUSPENSION COIL SPRING 有权
公开(公告)号：EP3150880A4
公开(公告)日：2018-01-24
申请号：EP14893187
申请日：2014-05-28
申请人： NHK SPRING CO LTD
发明人： TANGE AKIRA , OKADA HIDEKI
IPC分类号： F16F1/12 , B60G11/14 , B60G11/16 , C21D7/06 , F16F1/00 , F16F1/04 , F16F15/06 , F16F15/067
CPC分类号： B60G11/14 , B60G11/16 , B60G2202/12 , B60G2206/42 , B60G2206/81 , B60G2206/8402 , B60G2206/8403 , B60G2500/20 , C21D7/06 , C21D9/02 , F16F1/04 , F16F2226/02
摘要： A compressive residual stress portion (50) having a compressive residual stress from a surface of a wire (40) to a first depth (D1) is formed between end turn portions (12a, 12b) of a coil spring (12). The end turn portion (12a) includes a first portion (12a 1 ), a second portion (12a 2 ), and a third portion (12a 3 ). The first portion (12a 1 ) is always in contact with a spring seat irrespective of a load applied to the coil spring (12). The second portion (12a 2 ) contacts the spring seat when the load applied to the coil spring (12) is large, and is separated from the spring seat when the load is small. The third portion (12a 3 ) is always separated from the spring seat irrespective of the magnitude of the load. In the end turn portion (12a), in a region including the second portion (12a 2 ), a deep residual stress portion (51) is formed by ultrasonic shot peening. The deep residual stress portion (51) has a compressive residual stress from a surface of the wire (40) to a second depth (D2) deeper than the first depth (D1).

30. 发明公开

EP3124650A4 METHOD FOR PROCESSING SURFACE OF STAINLESS STEEL, AND HEAT EXCHANGER OBTAINED USING SAME 有权
公开(公告)号：EP3124650A4
公开(公告)日：2017-11-15
申请号：EP14886931
申请日：2014-09-08
申请人： HITACHI LTD
发明人： KAWAMURA TOSHINORI , TAMURA AKINORI , NAKANO HIROSHI , KITO KAZUAKI
IPC分类号： C23F1/28 , B24C1/06 , C21D7/06 , C23F1/00 , F28F1/12 , F28F21/08
CPC分类号： B24C1/06 , C21D7/06 , C23F1/18 , C23F1/28 , F28D7/16 , F28F13/185 , F28F19/06 , F28F21/083
摘要： In a surface treatment method for stainless steel, a stainless-steel surface fine-structure forming method for forming a fine irregular structure (roughened surface) having a high surface area is provided. A stainless-steel surface treatment method according to the present invention is for forming the fine structure on the surface of stainless steel. The method includes: a first step of performing grain refining treatment for refining crystal grains in the surface of stainless steel; and a second step performed, after the first step, for roughening etching the surface of stainless steel with an etching solution.

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