Manufacturer of anti-corrosion steel pipes for urban sewage treatment

Description :

　　The process flow and characteristics of epoxy coal tar anti-corrosion steel pipe: I. Primer and topcoat before wrapping with fiberglass The construction of anti-corrosion epoxy coal tar paint adopts brushing method according to the site conditions. 2. After the rust removal of the steel is inspected and qualified, the primer and topcoat shall be applied. When painting, the welding position of the steel assembly shall be left as much as possible, with a reserved length of about 150mm, to avoid difficulty in cleaning the root during welding and affecting the welding quality. 3. For steel surfaces with a high degree of pit dust (>2mm), putty should be mixed to level it up Mix the epoxy coal tar paint thoroughly and let it mature for 15-30 minutes, then use it up within 4 hours. 5. Apply a coat of topcoat after the primer surface dries and before curing, and apply a second coat of topcoat after the topcoat dries and before curing. During construction, the process flow is often continuous, so special attention needs to be paid to the painting interval time to ensure that the painting interval is between small and small. During on-site construction, the interval time for coating should be determined based on the performance of the coating and weather conditions. If the interval between paint reapplication is too long, the paint surface needs to be roughened with sandpaper or grinding wheel before applying the final coat of paint. 7. After the steel sandblasting is qualified, the primer should be applied immediately. Therefore, attention should be paid to the influence of dust on the painting. When painting, try to stay away from the sandblasting area or suspend the sandblasting construction as much as possible. 8. The operation of epoxy coal tar paint should be carried out according to the material instructions and specifications provided with the goods. 9. The painting construction tools should be clean, and the cleaning and post-treatment during use should be appropriate.

　　The past of water supply pipes is similar to the development of building water supply and drainage in China. China's water supply pipes have also gone through the past of single variety, low hygiene standards, slow development, and the present of diverse varieties, rapid improvement of hygiene standards, and rapid updating and development. Non galvanized steel pipes that have been in use for nearly thirty years, including galvanized steel pipes that were once seen as a symbol of improving building standards, have now been partially phased out in most provinces; In order to save steel, reinforced concrete pipes were promoted and used in the 1950s. They can withstand high working pressure, are corrosion-resistant, inexpensive, and durable, without reducing the water carrying capacity of the pipes. However, they are heavy, hard and brittle in texture, afraid of collision, and prone to leakage at the interface. The requirement for a flat and solid bottom of the pipe trench is high, and the lack of accessories increases the difficulty of maintenance in the future. The current usage is gradually decreasing; Plastic pipes have good anti-corrosion and seismic resistance, certain elasticity in tensile and bending resistance, smooth surface, good hydraulic conditions, stronger frost resistance than metal pipes, and are lightweight. Due to the insufficient pressure bearing capacity of the pipes, their brittleness and susceptibility to aging, as well as their high cost, they are only used for indoor pipelines. 2、 The current situation of water supply pipes: 8710 anti-corrosion steel pipes for drinking water. Currently, there are many types of water supply materials. Our focus is on introducing new indoor and outdoor water supply pipes, as well as introducing some new application points with improved performance that have been used in the past. Below are two main categories of pipe materials used: 8710 anti-corrosion coating has a dense coating structure, excellent acid, alkali, salt, rust prevention performance, strong adhesion, etc. Therefore, 8710 anti-corrosion coating is generally applied to the inner layer of water supply pipelines, which is the primer. The 8710 anti-corrosion coating has the characteristics of being non-toxic and resistant to microbial contamination, so it is often used as a topcoat for water supply pipelines. The 8710 non-toxic drinking water anti-corrosion coating is a non-toxic drinking water coating with good anti-corrosion performance. Rust proof, non irritating, non-toxic after curing. The coating structure is dense, with good waterproof permeability, strong adhesion, and a tough and full coating.

AfterSalesService :

• Coating pipe