Batch coil annealing furnace and method

Heating – Processes of heating or heater operation – Controlling flame position or work atmosphere

Patent

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Details

137861, 266256, 432 24, 432205, 432206, F16K 100, C21D 106, F27B 904, F27B 1100

Patent

active

045965269

ABSTRACT:
An apparatus for heat treating a work item includes a cover member and a base member on which the cover member is supported. A work space is defined between the base member and the cover member for receiving at least one work item which is positioned therein. A seal member is located between the base member and the cover member for sealing the work space against the entry and exit of gas. A valving system is provided for regulating the entrance and exit of a gas to and from the work space. The valving system is in fluid communication with the work space and includes a relief valve member for allowing the exhaust of the gas from the work space when gas pressure therein exceeds a predetermined limit.

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