Aluminum coil is closely related to our life and can be seen in many places. Color coated aluminum coil and its anti-corrosion and thermal insulation characteristics are widely used in the construction industry. Sometimes the aluminum coil will bend.
There are four main factors affecting the cooling bending of color coated aluminum coil
1. The high pressure spray nozzle has strong directionality, and the angle of fog is about 25 ° to 30 ° and can complete the partial cooling of aluminum coil without affecting other parts of color coated aluminum coil.
2. Under normal conditions,
the air and aluminum hollow coils are in contact with each other, and the heat transfer coefficient is the same. The pre painted aluminum coil has different wall thickness or shape, and each part of the cooling rate is uneven, which makes the hollow tube
or cooling speed of the thick part slower than that of the thin part.
3. For the color coated aluminum coil, the high pressure ambient air atomizes the water and adds the surface product of water and profile through touching, which destroys the
vapor film when water and high temperature structural profile touch, and improves the heat transfer efficiency
4. When some high-pressure aerosols are used for cooling, the heat transfer coefficient of water is greater than that of air due to the
existence of air and ater. Therefore, aluminum coil plate can improve the heat dissipation rate.