Preheating between 482 to 649Ā°C is recommended before heating parts above 704Ā°C if the parts have been previously hardened to 35 Rc / 345 HV 10 or greater or if the geometry of the part may produce excessive stresses during heat up.
When preheating parts above 300Ā°C, a protective atmosphere is recommended to reduce surface oxidation. Air, without a protective atmosphere, is acceptable when preheating parts below 300Ā°C.
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Pre Heating Furnaces by Therelek
Chamber Furnace
Chamber Furnace
Therelekās chamber furnace can operate up to 1800Ā°C. These furnaces are usually rugged, refractory based construction
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Continuous Mesh Belt Furnace
Continuous Mesh Belt Furnace
A multi-zone control environment is present in a continuous high-temperature furnace, often with a single pre-heating zone.
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Bogie Hearth Furnace
Bogie Hearth Furnace
Roller hearth furnaces are designed for continuous production and easy maintenance to handle large size and weights.
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