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Turning method for duplex stainless steel P-type block

A duplex stainless steel, total section technology, applied in ship parts, ships, load hanging components, etc., can solve the problem of the difficulty of turning over the P-type total section, and achieve the effect of maintaining mechanical stability and preventing deformation.

Inactive Publication Date: 2018-12-07
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for turning over the P-type general section of duplex stainless steel, which is used to solve the problem of difficulty in turning over the existing P-type overall section

Method used

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  • Turning method for duplex stainless steel P-type block
  • Turning method for duplex stainless steel P-type block
  • Turning method for duplex stainless steel P-type block

Examples

Experimental program
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Embodiment

[0024] Embodiment: a method for turning over the P-type total section of duplex stainless steel, comprising the following steps:

[0025] Step 1. Arrange four turn over main hooks 1, four turn over auxiliary hooks 2 and two translation main hooks 3 on the P-type general section, and the four turn over main hooks 1 are all arranged on the deck of the side section 4, The four turn over main hooks 1 correspond to the four T rows 6 on the deck section 5 respectively, and the four turn over main hooks 1 are on the same horizontal line, and the four turn over auxiliary hooks 2 are arranged on the side On the rib plate 7 of the segment 4, and two turned over auxiliary hooks 2 are on one side of the transverse compartment segment 8, and the other two turned over auxiliary hooks 2 are on the other side of the transverse compartment segment 8, the two The translational main hooks 3 are respectively arranged on the two T rows 6 closest to the transverse compartment section 8 on the deck ...

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Abstract

The invention discloses a turning method for a duplex stainless steel P-type block, and belongs to the technical field of ship building. The method comprises the following steps that firstly, turningmain hooks, turning auxiliary hooks and translation main hooks are arranged on the P-type block; secondly, lifting hooks of a first crane are connected with the turning main hooks, lifting hooks of asecond crane are connected with the turning auxiliary hooks, and the lifting hooks of the first crane and the lifting hooks of the second crane rise; thirdly, when the rising height of the P-type block is two times the height of the P-type block, the lifting hooks of the first crane and the lifting hooks of the second crane stop rising, and the lifting hooks of the second crane fall; and fourthly,when the stress of the lifting hooks of the second crane is zero, connection between the lifting hooks of the second crane and the turning auxiliary hooks is relieved, the lifting hooks of the secondcrane are connected with the translation main hooks and rise, and turning of the P-type block is achieved. According to the method, by reasonably arranging lifting rings, direct contact between the lifting rings and a stainless steel material is avoided, and it is guaranteed that the performance of duplex stainless steel is not influenced.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, in particular to a method for turning over a P-type general section of duplex stainless steel. Background technique [0002] The cargo tanks of modern chemical tankers are made of duplex stainless steel, which has high strength and good corrosion resistance. At the same time, the protection of stainless steel materials is also particularly important. Not only can they not be in contact with carbon steel materials, but also need to avoid cuts and high temperature effects. In the construction of this type of ship, the inner longitudinal wall of the side section, the deck section deck, and the section of the transverse compartment included in the P-type general section are all duplex stainless steel materials. After the P-type general section is assembled based on the side-side subsection outer plate, it needs to go through two processes of turning over at 90° and hoisting. During this process,...

Claims

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Application Information

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IPC IPC(8): B66C13/08B66C1/10B63B17/00B63B9/00
CPCB63B17/00B66C1/10B66C13/08B63B71/00
Inventor 方汇
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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