Corrosion-resistant steel structural component
A steel structure, corrosion-resistant technology, applied in the direction of anti-corrosion coatings, coatings, special surfaces, etc., to meet the requirements of use, excellent resistance to seawater and salt spray atmospheric corrosion effects
Inactive Publication Date: 2018-03-13
CHANGSHU SHUNAGYU COPPER IND CO LTD
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- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The main technical problem to be solved by the present invention is to provide a corrosion-resistant steel structure with a double-layer protective layer, which can solve the defects in the corrosion resistance of existing steel structures
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] The preferred embodiments of the present invention will be described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0014] Embodiments of the invention include:
[0015] A corrosion-resistant steel structure, the steel structure includes a steel structure body, a zinc film layer formed on the surface of the steel structure body by hot-dip plating, and a composite aluminum film layer sprayed on the surface of the zinc film layer;
[0016] The corrosion-resistant treatment of the steel structure includes the following steps:
[0017] 1) Pretreatment: Pickling and degreasing the steel structure body, then rinsing with clean water and drying;
[0018] 2) Hot-dip galvanizing: place the steel structure body treated in step 1) in a galvanizing pot for hot-dip galvanizing treatment, and form a zinc film layer on...
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The invention discloses a corrosion-resistant steel structural component. The steel structural component comprises a steel structural component body, a zinc film layer and a composite aluminum film layer, wherein the zinc film layer is formed on the surface of the steel structural component body through hot dip coating, and the composite aluminum film layer is sprayed to the surface of the zinc film layer. A corrosion resistance treatment process of the steel structural component comprises the following steps of 1, pretreatment; 2, hot dip galvanizing; and 3, spraying of a composite protectivecoating. In this way, the zinc film layer and the composite aluminum film layer sequentially adhere to the surface of the steel structural component body, and in other words, double-layered protection treatment is adopted, so that the steel structural component is excellent in seawater corrosion resistance and salt mist atmosphere corrosion resistance; and the using requirements of high-end oceansteel structure mechanical equipment can be met.
Description
technical field [0001] The invention relates to the technical field of steel structure preparation, in particular to a corrosion-resistant steel structure. Background technique [0002] In order to improve its corrosion resistance, steel structural parts are usually protected by spraying zinc and aluminum coatings. However, a large number of experimental studies at home and abroad have shown that the protective treatment of zinc spraying and aluminum spraying coatings cannot guarantee the protection of steel in seawater and ocean atmospheres. It has not been corroded for more than ten years, that is, the corrosion resistance of the existing steel structure parts still has certain defects, which cannot meet the use requirements of high-end marine steel structure machinery and equipment. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a corrosion-resistant steel structure with double protective layers, which can s...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C23C2/06C23C2/26B05D3/00B05D3/02B05D5/00B05D7/14B05D7/24C09D5/10C09D7/61C09D163/00
CPCC23C2/06B05D3/002B05D3/0254B05D5/00B05D7/14B05D7/24C08K2003/321C09D5/103C09D163/00C23C2/26
Inventor 薛红军
Owner CHANGSHU SHUNAGYU COPPER IND CO LTD