公开(公告)号：WO2015144427A1

公开(公告)日：2015-10-01

申请号：PCT/EP2015/054920

申请日：2015-03-10

Applicant: NV BEKAERT SA

Inventor： GOMMERS, Tom ,  MALFAIT, Geert

IPC: B23K11/02 ,  B23K11/00

CPC classification number: B23K11/02 ,  B23K11/0026 ,  B23K2201/32 ,  B23K2203/04 ,  D07B1/0613 ,  D07B1/062 ,  D07B2501/2046

Abstract: A welding apparatus is presented that allows for a controlled welding of steel cord ends. The welding apparatus allows for a controlled welding path from welding period over post-weld period to complete cool-down. In the welding apparatus a direct current source is controlled over time by means of a programmable controller. By sensing the voltage over the clamps of the welding apparatus and using this as a further input to the programmable controller, a constant power dissipation between the clamps can be achieved in the post-weld period. An associated method for making the weld is described wherein during the post-welding period the electric power dissipated between the clamps is held constant. The welds obtained by this procedure have a favourable metallographic structure in that the heat affected zone has more than 50% of pearlite and/or bainite over the total area of that zone.

Abstract translation: 提供了一种焊接装置，其允许钢丝绳端部的受控焊接。 焊接装置允许从焊接后期的焊接周期到完成冷却的受控焊接路径。 在焊接设备中，通过可编程控制器随时间控制直流电源。 通过感测焊接装置的夹具上的电压并将其用作可编程控制器的另一输入，可以在焊接后期间实现夹具之间的恒定的功率耗散。 描述了用于制造焊接的相关联的方法，其中在焊后周期期间，在夹具之间消散的电功率保持恒定。 通过该方法获得的焊缝具有有利的金相结构，因为热影响区在该区域的总面积上具有超过50％的珠光体和/或贝氏体。