A method for repairing and treating the corroded part of the original composite layer of the tank body

Abstract

A method for repairing and treating the corroded part of the original composite layer of the tank body. The invention belongs to the technical field of metal tank body treatment, and discloses two types of repair treatment methods for different corrosion areas and different corrosion degrees of the original composite layer of equipment such as tank bodies. The repair treatment methods include: "plate-attached" repair method and "plug welding "Board type" repair method; "Board type" repair method is a repair method based on the "Board" process principle, including "patch" board repair method and "embedded" board repair method, this repair process is mainly used in tanks The corroded area of ​​the original layer of equipment such as tanks is not too large and the corrosion is not obvious; the "plug welding" repair method is a repair method based on the "plug welding" process principle, which is mainly used for the restoration of tanks and other equipment. In the case of large corrosion area and serious corrosion, due to the large repair area, the "plug welding" repair ensures smooth surface, avoids stress concentration, and has excellent performance after repair. The restoration process provided by the invention is scientific and reasonable, convenient and quick.

Description

technical field [0001] The invention belongs to the technical field of metal tank body treatment, and in particular relates to a two-type repair treatment method with different corrosion areas and different corrosion degrees of the original composite layer of the tank body. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] Many chemical containers and pipelines work in severely corrosive environments, and stainless steel must be used to meet their corrosion resistance requirements, but considering the economy, most of them use clad plates. The composite board is prone to serious corrosion in a short production cycle, and even the corrosion penetrates outside the base layer to cause leakage, which will seriously affect the normal operation and production of the device. When repairing the corroded part, the conventional repair method is: grinding the corroded part, and then surfacing stainless steel, bu...

AI Technical Summary

Problems solved by technology

Composite panels are prone to serious corrosion in a short production cycle, and even the corrosion penetrates out of the base layer to cause leakage, which will seriously affect the normal operation and production of the device.

When repairing the corroded part, the conventional repair method is: grinding the corroded part, and then surfacing stainless steel, but this method has a large welding deposition surface and a large amount of stainless steel electrodes, which is not only time-consuming but also difficult to operate. It is easy to ensure the repair quality, the quality is unstable after use, and it is easy to corrode again

[0004] Most of the original repair methods are: directly surfacing stainless steel after grinding on the rusted part. This method has a large welding deposition surface, uses a large amount of stainless steel electrodes, wastes materials, and is time-consuming and laborious. The repair quality is poor and the quality is unstable after use. susceptible to recurring corrosion

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