The construction of steel structure workshop anti-corrosion work is a very important project, because the steel structure workshop will be affected by various environmental factors during use, such as water, oxygen, chemicals, etc., which may lead to the corrosion of the steel structure workshop. In order to ensure the service life and safety of the steel structure workshop, effective anti-corrosion measures must be taken.
1. Steel selection and treatment.
When building a steel structure workshop, we should first choose high-quality materials, such as stainless steel, galvanized steel, etc., which have good corrosion resistance. At the same time, during processing and welding, it is necessary to pay attention to prevent damage to the surface of the steel, because damage will accelerate the occurrence of corrosion. For the damaged parts, they should be repaired and painted in time.
Second, coating anti-corrosion.
Coating anti-corrosion is one of the most common methods of anti-corrosion in steel structure workshops. Before painting, the steel surface should be pre-treated, such as grinding, rust removal, etc., to ensure that the surface is clean and dry. Then, according to different use environments and anti-corrosion requirements, choose the appropriate anti-corrosion coatings, such as anti-rust paint, anti-corrosion paint, etc. When painting, the coating process should be followed, and the coating should be carried out in accordance with the specified coating interval and coating thickness. At the same time, it is also necessary to pay attention to the environmental conditions during painting, such as temperature and humidity, to avoid affecting the quality of the coating.
3. Hot spray zinc anti-corrosion.
Thermal spray zinc anti-corrosion is an efficient and durable anti-corrosion method. By spraying the high-purity zinc wire on the surface of the steel after melting at high temperature, a thick zinc layer is formed, which effectively isolates the contact between the steel and the external environment, so as to achieve the purpose of anti-corrosion. Thermal spray zinc anti-corrosion has the characteristics of simple construction and long anti-corrosion life, and is suitable for anti-corrosion of steel structure workshops in various harsh environments.
Fourth, cathodic protection.
Cathodic protection is the application of an electric current to the surface of the steel, making it a cathode in an electrochemical system, thus preventing corrosion from occurring. Cathodic protection can be divided into two methods: impressed current method and sacrificial anode method. The impressed current method prevents corrosion by applying an electric current to the surface of the steel by applying an external power source to make the steel a cathode. The sacrificial anode law is to connect the metal that is more active than the steel with the steel to form a galvanic battery system, and the active metal acts as the anode to corrode first, thus protecting the steel from corrosion. Cathodic protection has the characteristics of good protection effect and long service life, but it requires an external power supply and special maintenance management.
5. Anti-corrosion structure design.
In the design stage of the steel structure workshop, the requirements of corrosion protection should be fully considered. Through reasonable structural design, the occurrence of corrosion can be effectively reduced. For example, reasonable arrangement of drainage holes, ventilation holes and other structural details to avoid problems such as water accumulation and dust accumulation;Corrosion-resistant materials and components, such as FRP, plastic, etc., are usedReasonable design of connection and fixing methods to avoid electrochemical corrosion, etc.
6. Daily maintenance and management.
The anti-corrosion work of the steel structure workshop is not only a problem that needs to be paid attention to in the construction stage, but also the daily maintenance and management. Regularly inspect, clean and maintain the steel structure workshop, and find and repair the corrosive parts in timeRegular maintenance and repair of the painting;Measures such as keeping the inside of the plant dry and well ventilated can effectively extend the service life and safety of the steel structure workshop.
To sum up, the anti-corrosion work of the construction of steel structure workshop needs to start from many aspects, including material selection and treatment, coating anti-corrosion, thermal spray zinc anti-corrosion, cathodic protection, anti-corrosion structure design, daily maintenance and management, etc. Only by comprehensively considering these factors and taking a variety of measures at the same time can we effectively ensure the service life and safety of the steel structure workshop.