公开(公告)号：US20130140299A1

公开(公告)日：2013-06-06

申请号：US13705981

申请日：2012-12-05

Applicant: NETUREN CO., LTD.

Inventor： Yutaka KIYOSAWA ,  Yutaka SUGIYAMA ,  Yasuharu OGAWA

IPC: H05B6/36 ,  C21D1/42 ,  H05B6/42

Abstract: A heating coil includes a pair of linear lead portions adapted to be connected to a power supply, and a ring-shaped or coil-shaped head portion having end portions connected to the lead portions respectively. A flow path through which a cooling medium flows is formed inside the lead portions and the head portion. An outer circumferential surface of the head portion has a circular or elliptical cross section and is configured to face a heating target portion of an inner circumferential surface of a work extending, the heating target portion extending in a circumferential direction of the work. Each of the lead portions has a straight side portion in a plane intersecting a longitudinal direction of the lead portions, the straight side portions of the lead portions being arranged in proximity to each other.

Abstract translation: 加热线圈包括适于连接到电源的一对线性引线部分，以及分别连接到引线部分的端部的环形或线圈状头部。 在引导部和头部内部形成有流过冷却介质的流路。 头部的外周面具有圆形或椭圆形的横截面，并且被构造为面对沿着工件的圆周方向延伸的加热对象部的延伸的工件的内周面的加热对象部。 每个引线部分在与引线部分的纵向相交的平面中具有直的侧部分，引线部分的直线侧部分彼此靠近设置。

公开(公告)号：US20170029910A1

公开(公告)日：2017-02-02

申请号：US15301050

申请日：2015-03-31

Applicant: NETUREN CO., LTD.

Inventor： Yutaka KIYOSAWA

IPC: C21D9/00 ,  C21D1/42 ,  C21D1/10

CPC classification number: C21D9/0068 ,  C21D1/10 ,  C21D1/42 ,  C21D9/00 ,  Y02P10/253

Abstract: A workpiece for an induction hardening is provided. The workpiece has a first inclined surface, a second inclined surface, and a connecting surface connecting the first inclined surface and the second inclined surface on a side toward which the first inclined surface and the second inclined surface approach each other. The connecting surface has a recessed portion. A hardened layer formed at the first inclined surface and another hardened layer formed at the second inclined surface do not overlap each other at the recessed portion.

Abstract translation: 提供用于感应淬火的工件。 工件具有第一倾斜表面，第二倾斜表面和将第一倾斜表面和第二倾斜表面连接在第一倾斜表面和第二倾斜表面彼此接近的一侧上的连接表面。 连接面具有凹部。 形成在第一倾斜面处的硬化层和形成在第二倾斜表面处的另一硬化层在凹部处彼此不重叠。

公开(公告)号：US20170041988A1

公开(公告)日：2017-02-09

申请号：US15303607

申请日：2015-04-08

Applicant: NETUREN CO., LTD.

Inventor： Yutaka KIYOSAWA ,  Shigeo TAKAHASHI ,  Yasuharu OGAWA

IPC: H05B6/10 ,  H05B6/44 ,  H05B6/40

Abstract: Heating coils are opposed to a portion of an annular workpiece having a continuously provided recessed surface, and the heating coils and the annular workpiece are moved relative to each other to heat the recessed surface by induction heating. The heating apparatus includes a first heating coil having a first corner conductor portion to be opposed to a first corner portion of the recessed surface and a first bottom conductor portion connected to the first corner conductor portion to be opposed to the bottom portion, and a second heating coil having a second corner conductor portion to be opposed to a second corner portion of the recessed surface and a second bottom conductor portion connected to the second corner conductor portion to be opposed to the bottom portion.

Abstract translation: 加热线圈与具有连续设置的凹陷表面的环形工件的一部分相对，并且加热线圈和环形工件相对于彼此移动，以通过感应加热来加热凹陷表面。 所述加热装置具有：第一加热线圈，具有与所述凹部表面的第一角部相对的第一角部导体部;以及与所述第一拐角导体部连接的与所述底部相对的第一下部导体部， 具有与凹面的第二角部相对的第二角部导体部的加热线圈和与第二角部导体部连接的与底部相对的第二底部导体部。

公开(公告)号：US20190021140A1

公开(公告)日：2019-01-17

申请号：US16132600

申请日：2018-09-17

Applicant: NETUREN CO., LTD.

Inventor： Tetsuya ONO ,  Masato SUGIMOTO ,  Yutaka KIYOSAWA ,  Toshihiro AIBA ,  Kazutomi OKA ,  Kunihiro KOBAYASHI ,  Fumiaki IKUTA ,  Kazuhiro KAWASAKI

IPC: H05B6/06 ,  G01R31/40 ,  G01R21/06

Abstract: An induction heating system includes induction heating apparatuses, each including a high-frequency current transformer, a low-frequency current transformer and a heating coil, a high-frequency input switch connected to the high-frequency current transformer, a low-frequency input switch connected to the low-frequency current transformer, a first power source to output a high-frequency electric power and a low frequency electric power, a second power source, a first power source output switch connectable to the first power source, a second power source output switch connectable to the second power source, and a switch controller. Each induction heating apparatus includes a heater controller to send a signal to the switching controller to turn on one of the first power source output switch and the second power source output switch, to turn off the other, and to switch on or off each of the high-frequency input switch and the low-frequency input switch.

公开(公告)号：US20160316523A1

公开(公告)日：2016-10-27

申请号：US15102381

申请日：2014-12-17

Applicant: NETUREN CO., LTD.

Inventor： Hirokazu INABA ,  Yutaka KIYOSAWA

IPC: H05B6/38 ,  C21D1/10 ,  C21D9/08 ,  H05B6/10 ,  C21D1/42

CPC classification number: H05B6/38 ,  C21D1/10 ,  C21D1/42 ,  C21D9/08 ,  H05B6/101 ,  Y02P10/253

Abstract: To heat a workpiece having a recess portion provided along a longitudinal axis of the workpiece, the workpiece is inserted into an induction heating coil, and the induction heating coil or the workpiece is along an axial direction of the workpiece. The induction heating coil has a conductor configured to surround the workpiece around the axis of the workpiece. The conductor has a protruding portion protruding inwardly to face the recess portion of the workpiece.

Abstract translation: 为了加热具有沿着工件的纵轴设置的凹部的工件，将工件插入到感应加热线圈中，并且感应加热线圈或工件沿着工件的轴向方向。 感应加热线圈具有构造成围绕工件的轴线围绕工件的导体。 导体具有向内突出以与工件的凹部对置的突出部分。