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Cement Equipment Weatherability And Durability
Oct 27, 2017

Cement equipment (steel) in the corrosion environment is very different, Cement Equipment but also in the transport, storage, installation and production of all links will be subject to environmental damage hazards.

(1) the impact of geographical environment. Different parts of the construction project corrosion environment vary widely, for example, in hot and humid areas of high temperature, Cement Equipment corrosion rate of 160μm / a, great harm to the corrosion of equipment. In the desert area, Cement Equipment the annual precipitation is little less affected by the corrosion. At the same time, a lot of cement equipment is exposed to work in the external environment, long-term by the wind, sun, rain, the coating weather resistance and durability have an impact.

(2) the impact of dust and smoke. The dust from the cement production line itself contains SO2 and nitrogen oxides (NOX) and other harmful gases, not only pollute the air, Cement Equipment the equipment also has a strong corrosion, while dust will wear equipment surface.

(3) the effect of storage transport. With the continuous development of EPC projects, equipment due to long-distance transport by the corrosion hazards are increasing. Cement Equipment Most of the cement equipment through the marine transport, sea time 2 to 3 months, and many for large nude pieces, salt spray of the ocean atmosphere of the device for a long time corrosion, great harm.

Is based on epoxy resin as the main film-forming material of the paint, many types, such as single-component, two-component and multi-component. In the epoxy primer, epoxy zinc-rich paint because it is rich in a large number of zinc powder with cathodic protection, supporting the application of the best anti-corrosion performance, it is compared with the epoxy zinc phosphate paint, Cement Equipment fast drying, anti-corrosion and anti-aging properties Stronger But from a micro perspective, epoxy zinc-rich film surface was "sheet" with "gap", need to use closed paint closed, otherwise, the anti-corrosion effect is not necessarily better than epoxy zinc phosphate paint.

Is the abbreviation of polyurethane resin paint. Commonly used in aliphatic polyurethane, aromatic polyurethane and acrylic polyurethane, mostly used as a finish. Cement Equipment The aliphatic polyurethane is an aliphatic isocyanate component and a high-grade acrylic resin, pigment and solvent composed of two-component self-drying paint, it is excellent weather resistance, light, good color retention, but the price is higher. The aromatic polyurethane (single component) poor weather resistance, not suitable for outdoor use. Acrylic polyurethanes (bicomponent) with hydroxyl-containing acrylate and aliphatic polyisocyanates have good weatherability and acid,Cement Equipment alkali and salt corrosion, but weaker Aliphatic polyurethane. Polyurethane-based paint is good, the film tough, impact resistance and wear resistance of excellent performance, good decorative (surface fullness bright), Cement Equipment acrylic polyurethane is the most commonly used outdoor cement equipment, high-level finish.