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Assembly and flame process for trunk bulkhead deck

A pyrotechnic and deck technology, applied in the field of ships, can solve problems such as low deck welding quality, and achieve the effects of small deformation, broad market space and high flatness

Active Publication Date: 2013-01-02
YANGFAN GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is the deficiency that the welding quality of the existing deck is increasingly low

Method used

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  • Assembly and flame process for trunk bulkhead deck
  • Assembly and flame process for trunk bulkhead deck
  • Assembly and flame process for trunk bulkhead deck

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] A wall deck assembly and pyrotechnics process, comprising the following steps:

[0022] A. Check and measure the flatness in advance before cutting the material. The uneven sheet should be flattened on the seven-star roller bed, and the error requirement is ±2 mm / m 2 , the splicing thin plate can not be used to ride on the welded steel plate, but to splice it with a wooden hammer with a long handle under the joint, and control the welding current. It should not be too large to avoid arc craters and ensure the surface quality of the thin plate;

[0023] B. Components on the thin-plate frame, such as deck beams, section steel and welded assemblies of wall stiffener components, such as angle steel, spherical flat steel, flat steel panels and double panels in ⊥-type composite materials, etc., are pre-supported in advance , Roll flat, maintain its ...

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Abstract

The invention discloses an assembly and flame process for a trunk bulkhead deck and belongs to the technical field of ships. The process comprises the steps of inspecting and measuring the planeness comprehensively before blanking; pre-straightening and rolling profile steels, welding assemblies and the like on thin-plate grillages in advance; welding thin plates of large areas; adopting dense spot welding for installation and positioned welding of members such as stiffeners and cross beams; strictly controlling the selection of welding rods; conducting distortion correction by flame on the deck; for openings such as square windows and portholes on the deck, usually adopting a short bar-type water-and-fire correction method on peripheries of square windows, in 30-degree directions of porthole openings and in 45-degree directions of square window openings; during leveling, planishing and straightening along weld joints with wood hammers or riveting gun flat heads; finally, scribing structural lines and theoretical lines; and placing margins after deck splicing manufacturing on a hollow platform or a hollow position of the platform for cutting down, and when thin plates are stacked together, the steel plate on the upper portion can not be cut. The deck welded through the process is high in planeness, small in deformation and long in service life.

Description

technical field [0001] The invention relates to a surrounding wall deck assembly and pyrotechnic process, which belongs to the technical field of ships. Background technique [0002] In recent years, with the rapid development of the shipping industry, the performance requirements for ships are getting higher and higher, especially for large ships such as container ships, which basically cost hundreds of millions of dollars and carry a large amount of cargo. If an accident occurs while sailing at sea, The resulting loss will be immeasurable. The quality of welding during shipbuilding is directly related to the quality of the entire ship. If the welding quality of the deck is not good, it will directly break during the voyage. Nowadays, shipbuilding is outsourced, which directly leads to the lack of a set of Complete welding process inheritance, the quality of deck welding is getting lower and lower, so a mature welding process is urgently needed to solve this problem. Cont...

Claims

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Application Information

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IPC IPC(8): B23K9/16B23K9/235B21D1/00
Inventor 刘在良
Owner YANGFAN GROUP
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