公开(公告)号：EP2971195A1

公开(公告)日：2016-01-20

申请号：EP14716985.8

申请日：2014-03-14

申请人： Neturen Co., Ltd.

发明人： HORINO, Takashi ,  IKUTA, Fumiaki

IPC分类号： C21D8/06 ,  C21D9/52 ,  C21D9/60 ,  C21D11/00 ,  C21D1/42 ,  H05B6/06 ,  H05B6/10

CPC分类号： C21D9/54 ,  C21D1/42 ,  C21D8/06 ,  C21D8/065 ,  C21D9/52 ,  C21D9/525 ,  C21D9/60 ,  C21D11/00 ,  H05B1/023 ,  H05B6/06 ,  H05B6/08 ,  H05B6/10 ,  H05B6/104 ,  Y02P10/253

摘要： 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.

公开(公告)号：EP3314484A1

公开(公告)日：2018-05-02

申请号：EP16744548.5

申请日：2016-06-24

申请人： Neturen Co., Ltd.

发明人： HORINO, Takashi ,  TERAJIMA, Akira ,  IKUTA, Fumiaki ,  INOUE, Hiroki

IPC分类号： G06F17/50

CPC分类号： B23K11/115 ,  B23K11/26 ,  B23K11/314 ,  G06F17/5018 ,  G06F2217/42

摘要： 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.