Thermal projection surface coating equipment includes camera and pyrometer monitoring coating jet and deposit temperature

摘要

The thermal projection equipment (10) includes a projection torch producing a flux of high temperature gas charged with melted particles. An on-board camera and a pyrometer measure the properties of the jet and the temperature of the deposits (24) on the part (22) to be coated. This information is used to control the jet. The thermal projection equipment (10) includes a projection torch (12) with a geometric axis (14). The torch projects a jet (16) along the axis, the jet comprising a flux of high temperature gas charged with melted particles. A control cabinet (30) supplies the ingredients for the jet and controls their delivery. A computer (100) controls operation of the torch, analysing operation in real time. An on-board camera and a pyrometer measure the properties of the jet and the temperature of the deposits (24) on the part (22) to be coated. This information is fed to the computer, and corrections to the supply parameters are determined in order to achieve the required results. This information is fed back to the cabinet (30).