公开(公告)号：US20180104761A1

公开(公告)日：2018-04-19

申请号：US15558745

申请日：2016-06-24

Applicant: NETUREN CO., LTD.

Inventor： Takashi HORINO ,  Akira TERAJIMA ,  Fumiaki IKUTA ,  Hiroki INOUE

IPC: B23K11/11 ,  B23K11/26 ,  B23K11/31

Abstract: A direct resistance heating simulation method is provided. In this method, a welding region and its peripheral region of steel sheets to be welded by a pair of electrodes are divided into a plurality of elements. A coupled analysis is performed such that a temperature, a metal structure, stress and strain at each element are determine in a mutually associated manner based on Joule loss obtained through a current analysis and a magnetic field analysis for each element. The coupled analysis is repeated to predict an effect of one or more parameters, including at least one of a frequency, a magnitude and an application time of electric current to be applied to the electrodes, a cooling time, a pressure applied from the electrodes to the steel sheets and a shape of the electrodes, on welding quality after a post-heating by direct resistance heating and to improve weld strength.

公开(公告)号：US20210321495A1

公开(公告)日：2021-10-14

申请号：US17270685

申请日：2019-08-21

Applicant: NETUREN CO., LTD.

Inventor： Hidehiro YASUTAKE ,  Takashi HORINO ,  Hiroki INOUE ,  Hiroaki KINOSHITA

IPC: H05B6/10 ,  H05B6/40 ,  H05B6/44

Abstract: A heating coil includes a plurality of loop portions disposed coaxially along an axis, a first lead portion and a second lead portion which electrically connect to a power source, and a connection portion which connects the plurality of loop portions, the first lead portion, and the second lead portion in series.

公开(公告)号：US20160010175A1

公开(公告)日：2016-01-14

申请号：US14771286

申请日：2014-03-14

Applicant: NETUREN CO., LTD.

Inventor： Takashi HORINO ,  Fumiaki IKUTA

IPC: C21D9/54 ,  C21D1/42 ,  H05B6/08 ,  H05B1/02 ,  H05B6/10

Abstract: A wire heating system includes an induction heating apparatus having a power supply and an induction coil arranged to heat a wire rod by an induction heating using current supplied from the power supply, and a controller configured to control the current to be supplied to the induction coil based on a feeding speed of the wire rod. The induction heating apparatus has a heating section in which the wire rod is heated by the induction heating using the induction coil, and a soaking section located downstream of the heating section to homogenize the temperature distribution of the induction-heated wire rod. The controller is configured to control the current to be supplied to the induction coil such that a temperature of the wire rod at a downstream end of the soaking section becomes a target temperature.

Abstract translation: 线加热系统包括具有电源和感应线圈的感应加热装置，所述感应加热装置布置成通过利用从所述电源供给的电流进行的感应加热来加热线材;以及控制器，被配置为控制提供给所述感应线圈的电流 基于线材的进给速度。 感应加热装置具有通过使用感应线圈的感应加热来对线材进行加热的加热部和位于加热部下游的均热部，使感应加热线材的温度分布均匀化。 控制器被配置为控制提供给感应线圈的电流，使得在均热部分的下游端的线材的温度变为目标温度。