With the rapid development of the construction industry, there are more and more cases of using Jinan cable bridge in engineering, and it is favored and loved by consumers with its own performance. It is precisely because of the increasing use and higher requirements for equipment, sometimes we need to apply anti-corrosion coating when using the equipment, and then carry out anti-corrosion work on the equipment. But what should we pay attention to when choosing anti-corrosion coatings? Let's have a look.
Matters needing special attention when using anti-corrosion materials for Jinan cable tray under different working conditions.
1. Material characteristics of coated object surface.
2. Application environment of coating object. The anti-corrosion coating has a strong correlation with the environment. According to the specific application environment, such as medium type, concentration, temperature, equipment operation and other factors, select the appropriate anti-corrosion coating type and model.
3. Construction conditions of anti-corrosion coating. According to the actual situation of cable bridge and construction site, select appropriate anti-corrosion coatings. Under different construction conditions, such as embroidery construction, underwater construction, cement-based construction, plastic based construction and anti-corrosion coatings, select different anti-corrosion coatings and alloy structures.
4. Comprehensive effect of technology and economy. Material cost, surface treatment cost, construction cost, coating performance, service life, maintenance cost, etc. Shall be considered as a suitable anti-corrosion coating.
The construction quality of anti-corrosion coating has a great impact on the performance of the coating. In the actual coating process, due to improper construction methods, the expected anti-corrosion effect can not be achieved. In particular, many good anti-corrosion coatings are very sensitive to construction methods. Only in strict accordance with their respective construction conditions can normal coatings be formed and the expected anti-corrosion protection effect be achieved. The substrate shall undergo strict surface treatment. The steel substrate needs to be derusted and degreased, and the phosphating treatment can be determined according to the specific situation.
The anti-corrosion construction shall ensure the necessary thickness of anti-corrosion coating. The thickness of the anti-corrosion coating needs to exceed its critical thickness to play a protective role, generally between 150 microns and 200m. Control the environmental factors such as temperature and humidity at the spraying site. The indoor coating temperature shall be controlled between 20-25.
For example, the application temperature of high-temperature anti-corrosion coating should be more than 10 degrees, and the relative humidity varies according to the variety. Generally, it is appropriate to use about 65%. For outdoor construction, there shall be no wind, sand and rain, the temperature shall not be lower than 5, and the relative humidity shall not be higher than 85%. Uncured coatings shall be protected from frost, condensation, rain and dust. Control painting interval. If the primer is placed in front of the topcoat for too long, it is difficult to adhere and affect the overall protection effect.
The above is related to the four precautions for the selection of anti-corrosion coatings for cable trays in Jinan. I hope it will be helpful to you. If you want to know more, you can contact us by phone or follow our website. Our staff will contact you in time and look forward to your call.