METHOD FOR HEAT-TREATING A COATING.

摘要

The invention concerns a method for heat-treating a coating (1) deposited on at least a portion of a first face (F1) of a substrate (2) comprising a first face (F1) and a second face (F2) opposite said first face (F1), which involves treating said coating (1) by means of a laser beam (3) focused on said coating (1) in the form of a laser line (4) extending in a first direction (D1), said heat treatment being such that a movement of relative displacement between said substrate (2) and said laser line (4) is created in a second direction (D2) transverse to said first direction (D1), said method being characterised in that it involves locally heating said second face (F2) to a temperature of at least 30°C in an additional heating area (5) extending opposite said laser line (4) over a length of at least 10cm in said second direction (D2), using at least one additional heating means (6) arranged on the side opposite said laser line (4) relative to said substrate (2).