Opto-electronic dimensional measurement of rolled product in a continuous process

摘要

Coolant is stripped from hot-rolled product 10 by air supplied to a ring nozzle 2 arranged in an entry guide 1 for the product. Air is also supplied to a second ring nozzle 4 disposed in an exit guide 3, to draw residual coolant and particles away from passage 9, through which the product is optically scanned by an illumination source 5 and receiver 6. This provides suction effect in the passage g, which ensures that particles cannot be deposited on windows 14, 15 of the measuring equipment 5, 6. IMAGE