Steel structure anti-corrosion shot blasting cleaning - aluminum spraying - zinc plating process - Shandong oulide shot blasting machine manufacturer

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Process flow of shot blasting, aluminum spraying and galvanizing for steel structure

19-9-17 15:25:53 Click:

Steel structure is composed of steel materials, which is one of the main building structure types. In recent years, we know that steel structure is widely used in factory buildings and villas. Since it is used in buildings, safety must be considered.   Steel structure has many advantages, such as light weight, high strength, high plasticity, high toughness, easy repair, good seismic resistance, time-saving construction, low cost, and direct recycling, etc. However, steel structure is easy to be corroded in the environment with more water, and the performance of steel structure after corrosion will be reduced, and it is easy to fracture under the action of load. Therefore, it is of great practical significance to study the anti-corrosion of steel structure.


Anti corrosion process steps: shot blasting cleaning and derusting, surface spraying aluminum or zinc plating.


Shot blasting process flow:


Steel structure shot blasting machine, in the cleaning process, the steel structure parts or steel products are sent into the shooting area in the cleaning machine room by the adjustable speed conveying roller table controlled by electricity. All sides of the blast machine are hit and rubbed by the strong and dense projectiles from different coordinate directions, so that the oxide scale, rust layer and dirt on the steel surface fall off quickly, and the steel surface obtains a smooth surface with a certain roughness Both sides of the outer loading and unloading roller table.
The shot and rust dust falling on the steel are swept by the blowing device, and the shot dust mixture is transported to the chamber hopper by the recycling screw. The longitudinal and horizontal screw conveyor is collected at the lower part of the elevator, and then lifted to the separator on the upper part of the machine. The separated pure shot falls into the separator hopper for shot blasting recycling.
The dust generated in shot blasting cleaning is sent to the dust removal system by the exhaust pipe, and the purified gas is discharged into the atmosphere, and the granular dust is captured and collected.


Aluminum spraying zinc plating process flow:


The principle of aluminum spraying and zinc spraying anticorrosive coating for steel structure is cathodic protection. In corrosive environment, even if the anticorrosive coating is partially damaged, it still has the effect of sacrificing oneself to protect the steel substrate. Area ratio of coating (anode) to steel substrate (cathode) ≥1 And the ratio of anode to cathode of zinc rich coating is <1 The protective effect and adhesion of the coating are far lower than that of the arc spraying coating.

Shandong Qingdao oulide shot blasting machinery Co., Ltd. service hotline: 0532-82120613 13573855822 Lu ICP Bei No. 17030284