{
  "abstract": "Provided are a weld seam structure and a welding process suitable for a narrow-gap water-cooled wall tube panel. The weld seam structure comprises a groove-type gap formed between adjacent water-cooled wall tubes, where welding joints are arranged on sides of the adjacent water-cooled wall tubes that are close to each other, and the welding joints are distributed on an upper side of the groove-type gap, and the welding joints communicate with the groove-type gap. In addition to the original welding joints, the adjacent water-cooled wall tubes are considered as a whole; and the gap between the water-cooled wall tubes is processed into a groove type and welded together with the welding joints, which increases the thickness of the weld seam at the tangent point and the safety factor, also facilitates performing radiographic non-destructive testing.",
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  "published_at": "2026-09-15T19:03:06.130712Z",
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  "source_date": "2026-04-16",
  "source_id": "US-2026102832-A1",
  "source_name": "the United States Patent and Trademark Office",
  "source_url": "https://patents.google.com/patent/US2026102832A1",
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  "title": "Weld seam structure and welding process suitable for a narrow-gap water-cooled wall tube panel",
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