Solution Heat Treat of a 16’diameter x 14” High Bellows Ring in a round temporary Top Hat Furnace at 2075°FA Texas based specialty bellows expansion joint manufacturer had a need to heat treat several 16ft diameter bellows rings, however no furnace was available in the area to take this unusual size. OSR designed and assembled the 20ft dia x 4’high specialty, high temperature top-hat furnace at site. Two portable 10M BTU Gas trains and burners are used for this specialty heat treat operation.
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The photograph above shows a portable 20ft dia Top-Hat furnace with two high velocity burners set in place, each controlled by a portable gas train. The bellows ring being heated (see left) is supported on a pattern of piers to avoid distortion while heating.  Rapid removal of the furnace Top-Hat allows air quenching of the bellows ring assembly, cooling it from 2075°F to black heat in about four minuets. |
About Us
On-Site Stress Relieving Services, LP. (OSR) is a specialty industrial heat treating company offering portable on-site services.
Our services extend, but are not restricted to: new construction and turnaround work in oil and gas processing facilities, refinery and petrochemical units, power generating plants, fabricating shops and off shore equipment.
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