AMETEK Land (Sheffield, UK) has developed an innovative new pyrometer for accurately measuring the temperature of galvannealed and galvanized steel strip. The SPOT GS steel application pyrometer provides continuous and accurate temperature measurement of coated steel strip during the galvanneal reaction. This enables steel producers to accurately measure the temperature in a galvanneal furnace, allowing it to run at optimum throughput rates in order to ensure consistent, high-quality, premium-coated steel demanded by the automotive industry.
SPOT GS enables automated furnace management to provide close control of the reaction and position of the reaction zone, delivering tighter control of product quality. By maintaining control of the reaction zone, the steel application pyrometer accommodates rapid changes of line speed and furnace power with variations to substrate or coating weight. This allows for furnace optimization, reducing heating costs, maximizing throughput and avoiding excessive over-reaction and powdering or flaking of the coating during subsequent forming operations.