Welding support block
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United States of America Patent
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Oct 18, 2022
Grant Date -
Apr 23, 2020
app pub date -
Jan 15, 2018
filing date -
Jan 16, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A welding support block supports, from the rear surface of a joint to be welded, a weld pool created during a welding process. The welding support block comprises a block of metal and an outer layer of ceramic material providing a supporting surface. The ceramic material layer has a thickness between 0.25 mm and 1.5 mm. The metal material immediately beneath the ceramic material layer is made of steel. An internal line-up clamp for holding pipes in end-to-end alignment ready for welding may include multiple such welding support blocks. The use of such welding support blocks is particularly useful when laying a sour service carrying pipeline (high H2S content).
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