Patent · US Active

Weld between steel cord ends, method and apparatus to implement such weld

US10537960B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

NV BEKAERT SA · BE

Inventors

Tom Gommers · Evergem, BE
Geert Malfait · Kruishoutem, BE

Key dates

Filing date	Mar 10, 2015
Grant date	Jan 21, 2020
Priority date	—
Expiry date	Feb 20, 2037

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD07B2501/2046
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A welding apparatus 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 using 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 where 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.