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Cement Equipment Weatherability And Durability
Oct 11, 2017

(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.Cement Equipment The dust from the cement production line itself contains SO2 and nitrogen oxides (NOX) and other harmful gases, not only pollute the air, 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, 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, Cement Equipment 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, Cement Equipment aromatic polyurethane and acrylic polyurethane, mostly used as a finish. The aliphatic polyurethane is an aliphatic isocyanate component and a high-grade acrylic resin, Cement Equipment 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, alkali and salt corrosion, but weaker Aliphatic polyurethane. Polyurethane-based paint is good, Cement Equipment the film tough, impact resistance and wear resistance of excellent performance, good decorative (surface fullness bright), acrylic polyurethane is the most commonly used outdoor cement equipment, high-level finish.

Chlorinated rubber is made of natural or synthetic rubber chlorinated modified white or slightly yellow powder, chlorinated rubber paint is made of chlorinated rubber coating. Chlorinated rubber is a chemical inert resin, water vapor and oxygen on the film permeability is very low, and thus has excellent water resistance, Cement Equipment suitable for wet and humid areas of equipment corrosion. The paint acid, alkali, salt and a variety of corrosive gases, and has a flame retardant; good weather resistance and durability, paint a certain degree of flexibility.

Is a one-component solvent-based anti-corrosion coating, Cement Equipment composed of high chlorinated polyethylene resin, modified resin, plasticizer and its inert pigments and additives. Due to solvent evaporation and drying film, so the film dry fast, can be built at lower temperatures. Has excellent weather resistance and durability, the majority of acid, alkali, salt has a good corrosion resistance, good water resistance. Has a good adhesion, but wear resistance in general.