Stepped coating repairing method for corrugated steel web plate
Technical field
The present invention relates to Wavelike steel webplate combining structure and steel construction technical field, relate in particular to stepped coating repairing method for corrugated steel web plate.
Background technology
At present, the recovery technique of traditional steel plate junction, the stacked application of general employing fixed width is repaired, said method can make that each application aspect overlap joint is chaotic, the due function of each application aspect can not get bringing into play fully at the reparation weld, therefore, repairing weld often becomes the weakness of anticorrosive work, bring hidden danger of quality for the work of whole application, and in the high-temperature soldering process of steel plate, can destroy the coating that application finishes, bring certain influence for the promotion and application of the structure of Wavelike steel webplate.
Summary of the invention
The present invention is directed to each application aspect overlap joint confusion in the prior art, make the due function of each application aspect can not get bringing into play fully at the reparation weld, the high-temperature soldering process of steel plate can be destroyed the shortcomings such as coating that application finishes, a kind of stability and high efficiency is provided, make that the function of each application aspect is brought into play fully, welding process is not destroyed the stepped coating repairing method for corrugated steel web plate of coating structure.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Stepped coating repairing method for corrugated steel web plate comprises the following steps:
Step a: at distance welding central point 20-300mm place each coating is stacked gradually to be coated with and be contained on the Wavelike steel webplate, each coating becomes greatly successively to the distance of welding central point, forms step-like coating;
Step b: adhesive plastic protective film is pasted on the Wavelike steel webplate surface of coating after will solidifying and not application;
Step c: Wavelike steel webplate to be welded is transported to the job site carries out welded and installed;
Steps d: the plastic sheeting on the Wavelike steel webplate surface that welded and installed is finished removes;
Step e: each coating of application that on the repair surface of Wavelike steel webplate, superposes successively, make on the repair surface each coating with solidify after the corresponding one by one overlap joint of coating;
Step f: the monolithic floor surface of the Wavelike steel webplate that application is finished carries out anticorrosive coating, forms one deck corrosion-inhibiting coating.
Step g: the welding point reparation detects.
As preferably, each coating is 20-150mm to the distance of welding central point among the described step a.Above-mentioned design has been avoided may helping guaranteeing the performance fully of each application layer function, to reach Expected Results preferably to the destruction of application aspect generation effectively in the process of high-temperature soldering steel plate.
As preferably, each layer coating layer thickness on the repair surface among the described step e is the 100%-130% of actual each coating layer thickness.Said method has moderately been thickeied the thickness of the application layer on the repair surface, has strengthened the antiseptic property of repair place effectively, makes that the state of repair place is more stable, has guaranteed the actual effect of coating.
As preferably, among the described step e on the repair surface ground floor coating of application be anticorrosive paint.Above-mentioned design has improved the whole antiseptic property of Wavelike steel webplate, has guaranteed the quality of application coating on Wavelike steel webplate and the Wavelike steel webplate, has improved whole stability.
The present invention is owing to adopted above technical scheme, has significant technique effect: utilize and on Wavelike steel webplate, adopt stepped coating repairing method, make that the function of each application aspect is brought into play fully, and welding process is not destroyed the coating structure on the Wavelike steel webplate repair surface, on repair surface, add thick coating and strengthened the antiseptic property of repair place effectively, make that the state of repair place is more stable, improved the whole antiseptic property and stability of Wavelike steel webplate effectively.
Description of drawings
Fig. 1 is preprosthetic overall structure schematic diagram.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is for repairing the overall structure schematic diagram that finishes.
The toponym that each number designation referred in the above accompanying drawing is as follows: coating, 5-corrosion-inhibiting coating after wherein 1-welding central point, 2-Wavelike steel webplate, 3-repair surface, 4-solidify
The specific embodiment
Below in conjunction with accompanying drawing 1 to accompanying drawing 3 and specific embodiment the present invention is described in further detail:
Embodiment 1
Stepped coating repairing method for corrugated steel web plate comprises the following steps:
Step a: at the 20mm place of distance welding central point 1 each coating is stacked gradually to be coated with and be contained on the Wavelike steel webplate 2, each coating becomes greatly successively to the distance of welding central point 1, forms step-like coating;
Step b: adhesive plastic protective film is pasted on coating 4 after will solidifying and the Wavelike steel webplate of not application 2 surfaces;
Step c: Wavelike steel webplate to be welded 2 is transported to the job site carries out welded and installed;
Steps d: the plastic sheeting on Wavelike steel webplate 2 surfaces that welded and installed is finished removes;
Step e: application each coating successively superposes on the repair surface 3 of Wavelike steel webplate 2, make on the repair surface 3 each coating with solidify after the corresponding one by one overlap joint of coating 4, each layer coating layer thickness on the repair surface 3 is 110% of actual each coating layer thickness, and the ground floor coating of application on the repair surface 3 is anticorrosive paint;
Step f: the monolithic floor surface of the Wavelike steel webplate 2 that application is finished carries out anticorrosive coating, forms one deck corrosion-inhibiting coating 5.
Step g: the welding point reparation detects.
Embodiment 2
Stepped coating repairing method for corrugated steel web plate comprises the following steps:
Step a: at the 150mm place of distance welding central point 1 each coating is stacked gradually to be coated with and be contained on the Wavelike steel webplate 2, each coating becomes greatly successively to the distance of welding central point 1, forms step-like coating;
Step b: adhesive plastic protective film is pasted on coating 4 after will solidifying and the Wavelike steel webplate of not application 2 surfaces;
Step c: Wavelike steel webplate to be welded 2 is transported to the job site carries out welded and installed;
Steps d: the plastic sheeting on Wavelike steel webplate 2 surfaces that welded and installed is finished removes;
Step e: application each coating successively superposes on the repair surface 3 of Wavelike steel webplate 2, make on the repair surface 3 each coating with solidify after the corresponding one by one overlap joint of coating 4, each layer coating layer thickness on the repair surface 3 is 120% of actual each coating layer thickness, and the ground floor coating of application on the repair surface 3 is anticorrosive paint;
Step f: the monolithic floor surface of the Wavelike steel webplate 2 that application is finished carries out anticorrosive coating, forms one deck corrosion-inhibiting coating 5.
Step g: the welding point reparation detects.
Embodiment 3
Stepped coating repairing method for corrugated steel web plate comprises the following steps:
Step a: at the 300mm place of distance welding central point 1 each coating is stacked gradually to be coated with and be contained on the Wavelike steel webplate 2, each coating becomes greatly successively to the distance of welding central point 1, forms step-like coating;
Step b: adhesive plastic protective film is pasted on coating 4 after will solidifying and the Wavelike steel webplate of not application 2 surfaces;
Step c: Wavelike steel webplate to be welded 2 is transported to the job site carries out welded and installed;
Steps d: the plastic sheeting on Wavelike steel webplate 2 surfaces that welded and installed is finished removes;
Step e: application each coating successively superposes on the repair surface 3 of Wavelike steel webplate 2, make on the repair surface 3 each coating with solidify after the corresponding one by one overlap joint of coating 4, each layer coating layer thickness on the repair surface 3 is 130% of actual each coating layer thickness, and the ground floor coating of application on the repair surface 3 is anticorrosive paint;
Step f: the monolithic floor surface of the Wavelike steel webplate 2 that application is finished carries out anticorrosive coating, forms one deck corrosion-inhibiting coating 5.
Step g: the welding point reparation detects.
In a word, the above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to the covering scope of patent of the present invention.