Method and device for controlling a thermal cycle of a weld joining ends of strip together

摘要

A method and a device for controlling a thermal cycle of a weld joining one end of a first strip to an end of a second strip, suited to a joining machine of a strip treatment plant. The control device includes connections intended to connect the control device to a central automation system of the strip treatment plant and to the joining machine respectively, so as respectively to allow an exchange of at least one strip data item and an exchange of at least one operating data item. A computer is capable of computing, from the strip and operating data items, at least one thermal parameter of the weld. A weld control and characterization device is capable of controlling the welding as a function of the thermal parameter.

主权项

1. A method carried out by a control device for the automatic control of a thermal cycle of a weld joining strips, for controlling the welding of one end of a first strip to another end of a second strip by a joining machine of a treatment plant, the method which comprises:
carrying out a first exchange of at least one strip data item between the control device of the thermal cycle and a central automation system of the treatment plant, and a second exchange of at least one operating data item between the control device of the thermal cycle and the joining machine, wherein a connection of the control device connects the control device respectively to the central automation system of the strip treatment plant and to the joining machine, and enables the first exchange and the second exchange; using a computer of the control device for automatically classifying each of the strips into at least one family of materials and determining from the strip data item and the operating data item a thermal parameter of said weld, wherein the computer is configured for computing, from the at least one strip data item and the at least one operating data item, the at least one thermal parameter of the weld, said computer comprising a classification module capable, from said strip data item, of automatically classifying each strip into the at least one family of materials of a database, wherein each family of materials includes at least one reference material that is characterized by at least one reference data item, wherein the reference data items include at least one critical metallurgical parameter; and welding the ends of the first and second strip to one another under control of the welding process in dependence at least on the thermal parameter and the at least one critical metallurgical parameter, wherein control and characterization means of the control device are used for controlling the welding as a function of the thermal parameter and the critical metallurgical parameter.