The invention belongs to the technical field of ship manufacturing, and discloses a ship double-bottom-layer assembling and welding method and a ship double-bottom-layer structure. The ship double-bottom-layer assembling and welding method comprises the steps that S1, the inner bottom plate is placed upside down and welded and assembled with the transverse rib plate; s2, the contact position of the inner bottom plate and the head and tail sections of the outer plate is subjected to chamfering pretreatment; s3, welding the head and tail sections of the outer plate and the inner bottom plate, and welding the head and tail sections of the outer plate and the acute angle side of the inner bottom plate to form a first welding seam; and S4, the inner bottom plate is placed uprightly, and the head and tail sections of the outer plate and the obtuse angle side of the inner bottom plate are welded to form a second welding seam. According to the ship double-bottom-layer assembling and welding method, the assembling sequence of the outer plate is optimized, the outer plate head and tail sections closest to the end of the inner bottom plate are preferentially installed, a welder can easily get close to a to-be-welded part, a first welding seam can be conveniently welded, and the contact part of the inner bottom plate and the outer plate head and tail sections is consistent with the line type of the outer plate head and tail sections; and the welding filling amount of the obtuse angle side is reduced, and stress and deformation generated in the obtuse angle side welding seam welding process are reduced.

    本发明属于船舶制造技术领域,公开了一种船舶双底层装焊方法和船舶双底层结构。船舶双底层装焊方法包括:步骤S1、将内底板倒放并与横肋板焊接拼装完成;步骤S2、将内底板与外板首尾段的接触处进行削斜预处理;步骤S3、将外板首尾段与内底板焊接,于外板首尾段与内底板的锐角侧焊接形成第一焊缝;步骤S4、将内底板正放,于外板首尾段与内底板的钝角侧焊接形成第二焊缝。该船舶双底层装焊方法优化了外板的装配顺序,优先安装与内底板端部最接近的外板首尾段,使焊工容易靠近待焊部位,便于焊接完成第一焊缝,且又使内底板与外板首尾段接触部分与外板首尾段的线型保持一致,降低钝角侧的焊接填充量,减少钝角侧焊缝焊接过程中产生的应力和变形。


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    Title :

    Ship double-bottom-layer assembling and welding method and ship double-bottom-layer structure


    Additional title:

    一种船舶双底层装焊方法和船舶双底层结构


    Contributors:
    WANG MENGGUO (author) / SHAO DANDAN (author) / DAI MINGFENG (author)

    Publication date :

    2023-05-12


    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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