公开(公告)号：EP3045556B1

公开(公告)日：2020-03-25

申请号：EP14844852.5

申请日：2014-09-11

Applicant: JFE Steel Corporation ,  Sumihatsu Co., Ltd. ,  NHK Spring Co., Ltd.

Inventor： HONJO, Minoru ,  UWAI, Kiyoshi ,  ENDO, Shigeru ,  YAMASHITA, Katsutoshi ,  TSURU, Koei ,  FUJIE, Keiichi ,  TANGE, Akira

IPC: C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/60 ,  C21D6/00 ,  C21D8/06 ,  C21D9/02 ,  C21D9/52 ,  C21D1/18 ,  C21D1/25 ,  F16F1/02 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/42

公开(公告)号：EP3438321A1

公开(公告)日：2019-02-06

申请号：EP17773783.0

申请日：2017-02-15

Applicant: NHK Spring Co., Ltd.

Inventor： KAI, Morimichi ,  TANGE, Akira

IPC: C23C8/22 ,  B60G21/055 ,  C21D1/06 ,  C21D9/08

Abstract: Provide a production method and production device of a hollow stabilizer making it possible to consecutively carry out carburization and quenching of a hollow stabilizer, save the time necessary for carburization and energy consumed by carburization, and requiring no dedicated carburizing furnace for the purpose of carburization. A hollow stabilizer production method of a hollow stabilizer used for a vehicle includes attaching a first mounting member (75) and a second mounting member (82) respectively to one end (101) and another end (102) of a formed steel tube (100) and heating the steel tube (100). The method includes feeding a carburizing gas into the interior space (103) of the heated steel tube (100) through the first mounting member (75), and collecting the air and/or the surplus carburizing gas from the interior space (103) through the second mounting member (82) to thereby carburize the steel tube inner surface (105). The method includes rapidly cooling the heated steel tube (100) to thereby quench the steel tube (100) continuously from the carburization.

公开(公告)号：EP2444200A1

公开(公告)日：2012-04-25

申请号：EP10789284.6

申请日：2010-03-18

Applicant: NHK Spring Co., Ltd.

Inventor： TANGE, Akira ,  OKADA, Hideki ,  UESUGI, Motoi ,  HISANO, Yosuke

IPC: B24C1/10 ,  F16F1/02 ,  F16F1/06 ,  B21F35/00

CPC classification number: B21F35/00 ,  B21F99/00 ,  B24C1/10

Abstract: A spring wire (20) is subjected to a first shot peening process (S6) and a second shot peening process (S7). In the first shot peening process (S6), a first shot is projected on the spring wire (20) at a first projectile speed. High kinetic energy of the first shot produces compressive residual stress in a region ranging from the surface of the spring wire (20) to a deep position. In the second spring wire process (S7), a second shot is projected at a second projectile speed lower than the speed of the first shot. The kinetic energy of the second shot is lower than that of the first shot. The low kinetic energy of the second shot increases the compressive residual stress in a region near the surface of the spring wire (20).

Abstract translation: 对弹簧丝（20）进行第一喷丸硬化处理（S6）和第二喷丸硬化处理（S7）。 在第一喷丸硬化处理（S6）中，以弹射线的第一弹丸速度投射弹簧丝（20）。 第一次射击的高动能在从弹簧丝（20）的表面到深位置的区域中产生压缩残余应力。 在第二弹簧丝加工（S7）中，以比第一弹丸的速度低的第二弹丸速度投射第二射击。 第二枪的动能低于第一枪的动能。 第二次射击的低动能增加了弹簧丝（20）表面附近区域的压缩残余应力。

公开(公告)号：EP2397571A1

公开(公告)日：2011-12-21

申请号：EP10741269.4

申请日：2010-02-10

Applicant: NHK Spring Co., Ltd. ,  JFE Bars & Shapes Corporation

Inventor： KIKUCHI, Katsuhiko ,  TOMITA, Kunikazu ,  TAMAI, Yutaka ,  HATTORI, Kazuaki ,  INOUE, Kanji ,  TANGE, Akira ,  MORI, Norihiko ,  GOTO, Yurika ,  KURIMOTO, Kiyoshi

IPC: C22C38/58 ,  B60G21/055 ,  C21D9/00

CPC classification number: C22C38/02 ,  C21D1/25 ,  C21D1/28 ,  C21D9/0075 ,  C21D9/08 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58

Abstract: According to one embodiment, a high-strength stabilizer steel for vehicles having excellent corrosion resistance and low-temperature toughness, containing 0.07 to 0.20% C, more than 0.6% and 1.5% or less Si, 1 to 3% Mn, 0.1 to 1.0% Cr, 0.005 to 0.080% sAl, 0.005 to 0.060% Ti, 0.005 to 0.060% Nb, 0.070% or less Ti+Nb, 150 ppm or less N, 0.035% or less P, 0.035% or less S, 0.01 to 1.00% Cu, 0.01 to 1.00% Ni, the remainder being Fe, and unavoidable impurities, wherein a structure before molding a stabilizer is any one of a bainite, a martensite, and a mixed structure of bainite/martensite and an original austenitic crystal grain size number after a heat treatment of the stabilizer is Gh 9 or more.

Abstract translation: 。根据一个实施例，高强度稳定剂钢具有优异的耐腐蚀性和低温韧性的车辆，包含12:07至00：20％C，大于0.6％和1.5％或更低的Si，1〜3％的Mn，0.1〜1.0 ％的Cr，0.005〜0.080％萨尔，0.005至0.060％的Ti，0.005〜0.060％的Nb，0.070％或更少的Ti + Nb的，150ppm或更低的N，0.035％或更少的P，0.035％或更少的S，0点01到1:00 ％的Cu，0点01分至1：00％的Ni，其余为Fe和不可避免的杂质，worin成型稳定剂前的结构是一个贝氏体中的任一项中，马氏体，贝氏体/马氏体和原奥氏体晶粒尺寸的混合组织 作为稳定剂，在热处理后数为GH 9以上。

公开(公告)号：EP2216136A1

公开(公告)日：2010-08-11

申请号：EP08851884.0

申请日：2008-11-14

Applicant: NHK Spring Co.,Ltd.

Inventor： TANGE, Akira ,  SUGAWARA, Masato ,  SUMIYOSHI, Isao ,  TAKAHASHI, Ken ,  WAKABAYASHI, Yutaka ,  KAWAI, Masayoshi

IPC: B24C1/10 ,  B24C3/32 ,  B24C5/02

CPC classification number: B24C1/10 ,  B24C3/325 ,  Y10T428/24331

Abstract: The reflection portion 20 of the reflection member 1 is moved along the inner surface in the hole of the pipe W from the entrance opening of the hole of the pipe W to the exit opening of the hole thereof. In this case, the reflection portion 20 is guided by the guide portion 30 provided at both sides of the reflection portion 20. The shots, which are projected toward the inner surface in the hole of the pipe W, reach the reflection portion 20 through the holes of the guide portion 30 of the entrance side, and they are reflected toward the inner surface in the hole of the pipe W. Since the shots can be reflected toward the inner surface inside in the hole of the pipe W, the tendency that shots may be moved toward the inner surface outside in the hole of the curved portion P can be small. Therefore, since thinning of the wall of the pipe W can be performed, the pipe W can be strong, and the weight reduction of the pipe W can be simultaneously performed. As a result, the workability and the versatility can be improved, and the reflection member 1 can be easily used on the inner surface in the hole of the pipe having the curved portion.

Abstract translation: 反射构件1的反射部20沿管W的孔的内表面从管W的孔的入口向其孔的出口开口移动。 在这种情况下，反射部20被设置在反射部20的两侧的引导部30引导。向管W的孔内的内表面突出的射击通过该反射部20到达反射部20 入口侧的引导部分30的孔，并且它们朝向管W的孔中的内表面反射。由于可以在管W的孔内向内表面反射镜头，所以发射的趋势 可以在弯曲部分P的孔内向内表面移动可以很小。 因此，由于可以进行管道壁的变薄，所以能够使配管W牢固，能够同时进行配管W的重量减轻。 结果，可以提高可加工性和多功能性，并且可以容易地将反射构件1用于具有弯曲部分的管的孔中的内表面。

公开(公告)号：EP2835439B1

公开(公告)日：2020-02-19

申请号：EP13773106.3

申请日：2013-04-02

Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) ,  NHK Spring Co., Ltd.

Inventor： KOCHI, Takuya ,  HATANO, Hitoshi ,  TAMURA, Eiichi ,  TOYOTAKE, Kotaro ,  YAJIMA, Takashi ,  TANGE, Akira

IPC: C22C38/00 ,  C22C38/38 ,  C22C38/58 ,  C21D8/10 ,  C21D9/02 ,  C21D9/08 ,  C21D6/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/24 ,  C22C38/28 ,  C22C38/34 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

公开(公告)号：EP3438493A1

公开(公告)日：2019-02-06

申请号：EP17775321.7

申请日：2017-03-29

Applicant: NHK Spring Co., Ltd.

Inventor： TANGE, Akira ,  SUGAWARA, Masato ,  WAKABAYASHI, Yutaka

IPC: F16F1/02 ,  B60G21/055 ,  F16F1/14

Abstract: A terminal sealed portion (30) is formed on an end portion of a hollow rod (20) made of steel. An enclosed space (32) is formed on an inner side of the hollow rod (20). At an end of the enclosed space (32), a terminal gap (32a) is formed. A volatile powdered rust inhibitor (70) is supplied in the enclosed space (32). As the volatile powdered rust inhibitor (70) is vaporized, the enclosed space (32) is turned into a rust-inhibiting atmosphere. As the vaporized component of the volatile powdered rust inhibitor (70) is adsorbed to an inner surface (32c) of the enclosed space (32), an inner surface rust-inhibiting film (71) is formed. The vaporized component also enters inside the terminal gap (32a), and forms a terminal rust-inhibiting film (72).

公开(公告)号：EP3150880B1

公开(公告)日：2019-01-30

申请号：EP14893187.6

申请日：2014-05-28

Applicant: NHK Spring Co., Ltd.

Inventor： TANGE, Akira ,  OKADA, Hideki

IPC: F16F1/12 ,  F16F1/00 ,  F16F15/06 ,  F16F15/067 ,  B60G11/14 ,  B60G11/16 ,  C21D7/06 ,  F16F1/04 ,  C21D9/02

公开(公告)号：EP2578900B1

公开(公告)日：2016-04-20

申请号：EP11792241.9

申请日：2011-05-12

Applicant: NHK Spring Co.,Ltd.

Inventor： TANGE, Akira ,  KURIMOTO, Kiyoshi ,  GOTO, Yurika ,  SHIGEOKA, Iwao ,  KATO, Tadakazu ,  INOGUCHI, Shinichi

IPC: F16F1/02 ,  B24C1/04 ,  B24C1/10 ,  F16F1/28 ,  F16F1/18

CPC classification number: B21D53/886 ,  B24C1/10 ,  B24C3/325 ,  F16F1/18 ,  F16F2226/00

公开(公告)号：EP1201773A9

公开(公告)日：2002-07-31

申请号：EP00937195.6

申请日：2000-06-08

Applicant: NHK Spring Co., Ltd.

Inventor： TANGE, Akira ,  ANDO, Kotoji ,  WATANABE, Koji

IPC: C21D7/06

CPC classification number: C21D9/02 ,  C21D7/06 ,  F16F1/021 ,  F16F2226/00 ,  Y10S148/908 ,  Y10T29/479

Abstract: In a production process for highly strengthened springs, the process comprises performing a first shot peening to a spring steel having a hardness of a diameter of 2.7 mm or less on a Brinell ball mark while applying stress to the springs at a warm temperature in the range of 150 to 350°C.