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Rib board pulling method

A rib and penetration technology, applied in the field of rib pull-in method, can solve the problems of increasing the welding workload, reducing the fatigue life of the hull structure, and reducing the material utilization rate, etc.

Inactive Publication Date: 2008-06-25
SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using the insertion method to install, many patch plates are welded at the R-shaped incision, which will reduce the material utilization rate, increase the welding workload, and reduce the fatigue life of the hull structure.

Method used

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Embodiment Construction

[0039] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0040] A rib drawing-in method, which comprises the following steps:

[0041] Cutting and fabrication of longitudinals; checking the installation line of longitudinals; checking the installation accuracy of longitudinals; checking the cutting accuracy of ribs; installing channel steel at the lower opening of ribs; inserting ribs into longitudinals;

[0042] The operation method and process requirements in each step are described in detail below.

[0043] 1. Firstly, during the blanking and manufacturing process of the longitudinals, after the blanking of the web and face plate is completed, the free edge and end face of the face plate should be polished smooth. The precision criteria in this process are as follows:

[0044] Verticality between web and panel: ≤±2.0mm( Figure 5 shown) ...

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Abstract

The invention discloses a method for drawing ribbed slabs, which includes the steps as follows: longitudinal frames are baited and manufactured; the ribbed slabs are passed through the longitudinal frames; wielding process is determined and the wielding is carried out, etc. The method has advantages of improving the intensity, reducing the installation time, saving the material, etc.

Description

technical field [0001] The invention relates to a ship manufacturing method, in particular to a rib drawing-in method. Background technique [0002] In the existing hull structure, the straight inner bottom plate and the ribs on the side inner shell are generally installed by the insertion method at present, and the joint form is generally an R-shaped incision. When the insertion method is used for installation, many repair plates will be welded at the R-shaped notch, which will reduce the material utilization rate, increase the welding workload, and reduce the fatigue life of the hull structure. Contents of the invention [0003] The purpose of the present invention is to provide a method for pulling in ribs without adding patch panels. [0004] The purpose of the present invention is achieved through the following technical solutions: [0005] The invention discloses a method for pulling in ribs, which includes the steps of: blanking and manufacturing longitudinals; in...

Claims

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Application Information

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IPC IPC(8): B63B9/00B63B3/14B23K31/00
Inventor 董大栓高爱华李伟兴郑昕赵薇
Owner SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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