The invention discloses a method for constructing duplex stainless steel longitudinal bulkhead subsections of a chemical tanker. The method comprises the following steps of: welding jointed boards ona horizontal jig frame to form a segment surface, and welding jointed boards on a jig frame which is reversely deformed according to the subsection size to form a closure surface; flattening the folding surface by using a weight, enabling the folding surface to be attached to the jig frame, and positioning and connecting with the jig frame at the edge of the folding surface; assembling longitudinal bones on the closure surface, and installing false compartments for fixing the longitudinal bones on the edge of the closure surface; welding longitudinal bones from the middle to the two sides according to a blocking welding principle, and then dismounting the false compartment; assembling, hoisting and welding in the component frame; turning over the end faces of the sheets and folding the endfaces to a folding surface, using a weight to prevent integral deformation of the sections in the welding process after the sections are assembled, and removing the weight after welding seams are cooled after the sections are welded. According to the method, the overall flatness of the subsection is effectively ensured, and meanwhile, the corresponding precision and quality are ensured to meet the requirements for the subsequent assembly and carrying stages.

    本发明公开了一种化学品船双相不锈钢纵隔舱分段的建造方法,所述建造方法包括:在水平胎架上拼板焊接形成片段面,在依据分段尺寸加放反变形的胎架上拼板焊接形成合拢面;使用压铁压平合拢面,使合拢面贴合胎架,并在合拢面边缘与胎架定位连接;在合拢面上装配纵骨,在合拢面边缘安装固定纵骨的假隔舱;按照隔挡烧焊的原则从中间向两边焊接纵骨后拆除假隔舱;部件框架中组立吊装焊接;将片端面翻身合拢到合拢面上,分段装配后、焊接过程中使用压铁防止分段整体变形,分段焊接结束焊缝冷却后移除压铁。本发明有效保障分段整体平整度,同时也为后续总组及搭载阶段确保了相应的精度及质量能够满足要求。


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    Title :

    Method for constructing duplex stainless steel longitudinal bulkhead subsections of chemical tanker


    Additional title:

    一种化学品船双相不锈钢纵隔舱分段的建造方法


    Contributors:
    WU JUNHUI (author) / CHEN CHENG (author)

    Publication date :

    2020-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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