Repairing processing method of corrosion parts of original tank composite layer

Abstract

The invention provides a repairing processing method of corrosion parts of an original tank composite layer, belongs to the technical field of metal tank processing, and discloses two types of repairing processing methods of different corrosion areas and different corrosion degrees of the original composite layer of a tank and other equipment. The repairing processing method comprises the steps ofa ''flitch plate type'' repairing method and a ''plug welding type'' repairing method; the ''flitch plate type'' repairing method is a repairing mode performing by adopting a ''flitch plate '' technology principle and comprises a ''patch type'' flitch plate repairing method and an ''embedded type'' flitch plate repairing method, and the repairing technology is mainly applied to the conditions ofnot too large corrosion parts and not too obvious corrosion of the original composite layer of the tank and other equipment; the ''plug welding type'' repairing method is a repairing mode performing by adopting a ''plug welding'' technology principle, is mainly applied to the conditions of larger corrosion areas, more serious corrosion of the original composite layer of the tank and other equipment, due to larger areas in a repairing position, the ''plug welding type'' repairing ensures surfacing, avoids the generation of stress concentration, and the performance is good after repairing. The repairing technology is scientific and reasonable, and is convenient and fast.

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 for 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. However, considering economy, most of them use composite plates. Composite panels are prone to relatively serious corrosion phenomena in a short production period, and even the corrosion penetrates to the outside 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...

AI Technical Summary

Problems solved by technology

Composite panels are prone to serious corrosion in a relatively short production cycle, and even the corrosion penetrates to the outside 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 area, 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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