The invention relates to a chemical tanker duplex stainless steel inner bottom segment flatness control method. The method is sequentially divided into an inner bottom plate flatness control stage, anouter plate segment precision control stage and an outer plate segment and inner bottom plate folding precision control stage according to a segment construction process. In the inner bottom plate flatness control stage, pressing blocks are arranged on the two sides of a spliced plate weld joint to avoid welding deformation, and an inner bottom plate is formed after spliced plates are spliced; anouter plate segment jig frame is manufactured in the outer plate segment precision control stage, and it is guaranteed that outer plate segments are attached to the outer plate segment jig frame; a folding jig frame is built in the folding precision control stage of the outer plate segments and the inner bottom plate, the inner bottom plate and the folding jig frame are fixed through spot welding, an inner bottom plate structural part is installed, and finally the outer plate segments are turned over to be folded with the inner bottom plate. According to the method, measures are taken in allstages from the whole process of segmented construction of the duplex stainless steel innersole of the chemical tanker, it is guaranteed that the flatness of the finally-folded innersole segment meetsthe construction precision and quality requirements of the innersole segment, and the segmented construction period is shortened.

    本发明涉及一种化学品船双相不锈钢内底分段平整度控制方法,该方法依据分段建造流程依次分为内底板平整度控制阶段、外板片段精度控制阶段以及外板片段与内底板合拢精度控制阶段;内底板平整度控制阶段在拼板焊缝两侧设置压块以避免焊接变形,拼板拼接后形成内底板;外板片段精度控制阶段制作外板片段胎架保证外板片段贴合外板片段胎架;外板片段与内底板合拢精度控制阶段建造合拢胎架,内底板与合拢胎架点焊固定,内底板结构件安装,最后外板片段翻身与内底板合拢。本发明从化学品船双相不锈钢内底分段建造的整个流程中入手在各个阶段分别采取措施,保证最终合拢形成的内底分段的平整度满足其建造精度和质量要求,缩短分段建造周期。


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    Title :

    Segmented flatness control method for duplex stainless steel inner bottom of chemical tanker


    Additional title:

    一种化学品船双相不锈钢内底分段平整度控制方法


    Contributors:
    LIU YANG (author) / ZHOU GUOHUI (author) / YU LONGSEN (author) / WAN ZHONG (author)

    Publication date :

    2021-03-26


    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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