1991.064.415
Print, Photographic
Color photographic print mounted on board depicting stacked kiln cars at the Champion Spark Plug Co.
Caption reads: After turning, the insulators are fired in long tunnel kilns to a control temperature over 2800 F. The firing process knits the powdered ceramic particles together to form a hard, strong ceramic having excellent high temperature insulating properties. This picture shows the automatic car handling system at the Detroit plant.
