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Hoisting method for 2205 duplex stainless steel chemical tanker manufacturing process

A technology of duplex stainless steel and chemical tankers, which is applied in transportation and packaging, load suspension components, ships, etc. It can solve problems such as weakened anti-corrosion performance, intergranular corrosion of ships, and potential safety hazards of ships, so as to avoid weld tearing Cracks, reducing panel deformation, and avoiding deformation

Active Publication Date: 2020-12-01
AVIC DINGHENG SHIPBUILDING
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  • Claims
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AI Technical Summary

Problems solved by technology

Due to its dual-phase characteristics and stainless steel anti-corrosion requirements, the liquid cargo surface of stainless steel should avoid hanging welding as far as possible, so as to avoid defects on the stainless steel surface during welding and cutting, weaken the anti-corrosion performance of the defect position, and cause hidden dangers to the safety of ships
In addition, because the contact between carbon steel and stainless steel will lead to carburization, carburization will reduce the ability of stainless steel to resist intergranular corrosion, resulting in intergranular corrosion on ships, seriously affecting the safety of ship loading, so the surface of stainless steel cannot be in contact with carbon steel

Method used

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  • Hoisting method for 2205 duplex stainless steel chemical tanker manufacturing process
  • Hoisting method for 2205 duplex stainless steel chemical tanker manufacturing process
  • Hoisting method for 2205 duplex stainless steel chemical tanker manufacturing process

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after reading the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0034] A hoisting method for the manufacturing process of a 2205 duplex stainless steel chemical tanker, comprising the following steps:

[0035] A. After the stainless steel plate arrives at the site, use vacuum suction cups or stainless steel plate clamps for lifting. The main purpose of using vacuum suction cups or stainless steel plate clamps is to prevent other lifting tools from scratching the surface of the stainless steel plate;

[0036] B. Hoist the jigsaw 2 af...

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Abstract

The invention discloses a hoisting method for a 2205 duplex stainless steel chemical tanker manufacturing process. The hoisting method comprises the following steps: hoisting a stainless steel plate by adopting a vacuum chuck or a stainless steel plate clamp after the stainless steel plate arrives; hoisting spliced plates obtained after stainless steel plates are welded, hoisting flat plate pressing rib plane sheet bodies, hoisting subsections, including hoisting of double-layer bottom subsections, hoisting of bilge subsections, hoisting of broadside subsections and hoisting of deck subsections, and reasonably arranging the positions and materials of hangers to prevent the carbon steel hangers from making direct damage contact with the stainless steel plates. According to the hoisting method for the 2205 duplex stainless steel chemical tanker manufacturing process, the corrosion resistance of 2205 duplex stainless steel is effectively protected against damage.

Description

technical field [0001] The invention relates to a manufacturing method of a stainless steel chemical tanker, in particular to a hoisting method in the manufacturing process of a 2205 duplex stainless steel chemical tanker. Background technique [0002] Due to the advancement of material science and the enhancement of smelting capacity, 2205 duplex stainless steel is gradually used in large quantities on chemical tankers. Due to its dual-phase characteristics and stainless steel anti-corrosion requirements, the liquid cargo surface of stainless steel should avoid hanging welding as much as possible, so as to avoid defects on the stainless steel surface during welding and cutting, weaken the anti-corrosion performance of the defect position, and cause hidden dangers to the safety of ships. In addition, because the contact between carbon steel and stainless steel will lead to carburization, carburization will reduce the ability of stainless steel to resist intergranular corrosi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B73/30B63B73/43B66C1/10B66C13/08
CPCB63B73/30B63B73/43B66C1/10B66C13/08
Inventor 张富伟张亮蔡晓庆叶威君
Owner AVIC DINGHENG SHIPBUILDING
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