A method of manufacturing a ship side thrust duct

By first drawing intersection lines and positioning lines during the fabrication of the ship's side thrust guide tube, then opening annular notches, rolling it into a semi-circle, and cutting off the waste part, the problem of low cutting accuracy of the intersection line was solved, and the processing quality and efficiency were improved.

CN116691952BActive Publication Date: 2026-07-07SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
Filing Date
2023-07-13
Publication Date
2026-07-07

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Abstract

The application belongs to the technical field of ship structure, and discloses a manufacturing method of a ship side thrust duct, which comprises the following steps: selecting two rectangular coamings, laying the two rectangular coamings flat and aligning and splicing them; drawing a line of intersection mark line and a positioning line mark line on the two rectangular coamings, and the line of intersection mark line divides the rectangular coaming into a reserved part and a discarded part; opening a plurality of annular notches on the discarded part, and the annular notches are partially coincident with the line of intersection mark line; rolling the two rectangular coamings into a semicircular shape, and splicing and fixing the two reserved parts opposite to each other; cutting the remaining part of the discarded part along the track direction of the line of intersection mark line to form a tubular structure; repeating the above steps to manufacture another same tubular structure, and splicing and fixing the two tubular structures opposite to each other to manufacture the ship side thrust duct. The manufacturing method of the ship side thrust duct is simple and reliable, can further ensure the cutting precision of the line of intersection, and can ensure the processing quality and efficiency of the ship side thrust duct.
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