Method for Reduced Cycle Times In Multi-Pass Welding While Providing an Inert Atmosphere to the Welding Zone
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United States of America Patent
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Dec 16, 2010
filing date -
Dec 16, 2010
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This disclosure describes a method and apparatus for controlling the temperature of a welding zone for welding together pipe sections. The temperature is controlled by a flow of inert gas through the pipes. The inert gas flow is cooled and acts as a heat sink to remove heat from the weld zone thereby controlling the weld zone temperature.
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