A Continuous Furnace is one whose conveyor runs at a constant speed, where the work is fed to match emerges in the desired condition.
Three variations are shown to illustrate this:
Picture 1: A 72-foot long Porcelanizing Continuous Furnace (called a Slot Furnace) with an oval overhead trolley conveyor carrying individual inline sheets with Frit coating applied which will be heated to 1650°F for curing, followed by cooling. The continuous furnace configuration and its conveyor are dictated by the work size, length and process. These types of furnaces are usually in a U-shape or straight line.
Picture 2: An oil patch sucker rod (3/4 inch to 1 ¼ inch diameter by 20-feet long) Normalizing continuous furnace with a synchronized, 7 screw conveyor that will feed and heat to 1650°F approximately 2 rods per minute. Cooling is external.
Picture 3: A pipe coating continuous furnace, comprised of four zones which heat the product to powder coat melting temperature, using hourglass-shaped conveyor rolls to move the product at speeds ranging from 4 to 20 feet per minute on pipe ranging from 24” to 4” diameter.