Dual-phase stainless steel segmented construction method for chemical ship

A duplex stainless steel, segmented construction technology, used in ship construction, ship parts, ships, etc., can solve the problems of time-consuming, difficult to control temperature, and inability to control the deformation of fillet welds. Improve welding efficiency and quality, reduce the effect of secondary heat, and avoid the effect of weld hardening
CN110182301AActive Publication Date: 2019-08-30HUDONG ZHONGHUA SHIPBUILDINGGROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUDONG ZHONGHUA SHIPBUILDINGGROUP
Publication Date
2019-08-30

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Abstract

The invention discloses a dual-phase stainless steel segmented construction method for a chemical ship. The dual-phase stainless steel segmented construction method for the chemical ship comprises thefollowing steps that a carbon steel middle group and a stainless steel splicing plate are separately constructed, wherein the stainless steel splicing plate comprises a framework surface and a liquidcargo tank surface; the carbon steel middle group and the stainless steel splicing plate are combined; the stainless steel splicing plate is welded on the carbon steel middle group; an outfitting piece is arranged on the liquid cargo tank surface, and surface treatment is performed; and when the stainless steel splicing plate is welded on the carbon steel middle group, the framework surface is firstly welded, and then the liquid cargo tank surface is welded. The dual-phase stainless steel segmented construction method for the chemical ship has the beneficial effects that the number of stainless steel special jig frames and the arrangement of stainless steel segmentation special jig positions are reduced, the stainless steel segmented construction efficiency is improved, the welding efficiency and quality of stainless steel welding workers are further improved, the stainless steel welding deformation can be effectively controlled by fully utilizing the stainless steel deformation mechanism, so that the stainless steel segmented construction quality is improved.
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Description

Technical field

[0001] The invention belongs to the technical field of ship construction, and particularly relates to a method for constructing a chemical tanker duplex stainless steel section. Background technique

[0002] The method of the present invention mainly researches and solves three background technologies:

[0003] First, the duplex stainless steel section construction of chemical tankers is relatively special due to the special material of duplex stainless steel. In order to avoid the contact between stainless steel and other materials, most shipyards set up special workshops during the construction process, and the stainless steel section construction is similar to that of ordinary ships. The isolation is constructed in sections, and it is required to build on a special stainless steel tire frame. As stainless steel ship lines become more and more complex, shipowners have higher and higher requirements for the construction cycle. In order to ensure the progress of ma...

Claims

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