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When you look to purchase anything in life, you always feel more comfortable when you go to the experts. As an industrial furnace manufacturer, Surface Combustion has more installed base and sells far more new Allcase® Batch Integral Quench Furnaces than any competitor in the US. Beginning in the early 1950’s, we introduced this innovative and versatile style of furnace to industry.
Surface® Combustion pioneered the development of the batch integral quench (BIQ) furnace design to serve a growing post World War II industrial boom which required many types of heat treating processes to be performed. The BIQ served this purpose as it easily performs through hardening, carburizing, carbonitriding, annealing and ferritic nitrocarburizing all in the same versatile furnace design. After thermal processing, the load is automatically transferred for oil, polymer or brine quenching or for slow cooling. Any of the forms of cooling are performed under an RX® (Endothermic Gas Generators), DX® (Exothermic Gas Generators), or Nitrogen protective atmosphere to protect the work surface against oxidation and also to improve the work piece appearance. This was a dramatic improvement at that time of introduction over transferring out into air before entering a quench medium. This revolutionized the heat treating industry and together with the stated atmospheres enabled the future of boost/diffuse carburizing, carbon control and all the instrumentation and sensors that grew out of this invention