1. Zhongdi brand steel aluminum composite radiator Seamless by Steel pipe After the column and aluminum wing tube are expanded and compounded, they are welded with the upper and lower steel pipe headers to form a steel aluminum composite column wing radiator. It is characterized by compatibility with the advantages of steel radiator and increased heat dissipation. It is a radiator with high pressure bearing, good thermal conductivity, high metal thermal strength and excellent heat dissipation performance.
2. Zhongdi brand steel aluminum composite radiator has rich colors and various types (steel aluminum color cap, steel aluminum imitation double lap, steel aluminum imitation chip head, etc.), which can be "customized" for you.
3. Zhongdi brand steel aluminum composite radiator, the nominal outer diameter of steel pipe is 35mm, the wall thickness is 1.5mm Water pipe The nominal outer diameter is 18-22mm, the wall thickness is 1.5mm, and the header is connected with the vertical water pipe by drill hole Flanging process.
4. Zhongdi brand steel aluminum composite radiator, steel pipe and aluminum wing adopt advanced hydraulic tube expansion process, which is tightly combined and leak free.
5. The radiator is welded by brazing, and the welding rod is silver copper phosphorus solder. welded joint No quality defects and no leakage during welding. The test pressure is 1.5 Mpa.
6. Anti corrosion treatment shall be carried out after degreasing, pickling, phosphating and passivation. The full automatic vacuum canning machine is used for anti-corrosion, and the canning is carried out twice. The coating adopts the latest achievements of China's anti-corrosion science and technology (3318 special coating for internal anti-corrosion produced by Wuhan Research Institute of Materials and Coatings, which has passed the corrosion resistance certification of the national authority).
7. Automatic electrostatic spraying and 200 ℃ high temperature baking process are adopted. After the previous spraying, all of them shall be polished before the second spraying. The plastic spraying powder is a special powder for harmless and environment-friendly radiators produced by Nippon Saint Lianda Company. The surface is smooth and delicate, and the color is natural and bright, and does not fade.
8. The welding process shall ensure the overall strength of the radiator. Each radiator has undergone a strict pressure test before leaving the factory. The test pressure is 1.5Mpa (working pressure is 1Mpa), which is suitable for the heating system of high-rise buildings. The radiator test items include drop weight test and cross cut test.
9. Good hydrothermal performance, high metal thermal strength, larger heat dissipation than other similar radiators.
10. With large heat capacity, small heat and mass flow resistance, the continuous effective heating time is longer after the heat is stopped, which is more suitable for supporting the use of wall mounted furnace in families.
11. High pressure bearing capacity, long service life, up to 15 years in normal use. It is easy to install and can replace various existing radiators.
12. The steel aluminum composite radiator should pay attention to the maintenance of the system with full water to prevent the system from entering oxygen, causing corrosion and burning through. During water supplement, the oxygen content of water supplement shall be controlled at 0.1mg/L. The steel radiator shall operate at the PH value of circulating water between 7-9.
