Aluminum-coated zinc has excellent thermal reflectivity: enabling
energy conservation and material protection
In the industrial materials field, aluminum-coated zinc holds an
important position due to its numerous excellent characteristics.
Among them, the excellent thermal reflectivity is particularly
valuable in terms of energy conservation and material protection,
providing strong support for the development of various industries.
From a principle perspective, the surface of aluminum-coated zinc
steel is smooth and flat, with a high reflectivity of infrared rays
in the sunlight. This characteristic is particularly significant in
the construction field. When aluminum-coated zinc steel is used as
a roofing material, it can effectively reflect solar heat, reducing
the temperature of the roof surface. In hot summer, ordinary
roofing materials absorb a large amount of solar radiation heat,
with the surface temperature reaching 60 - 70℃, while a roof made
of aluminum-coated zinc steel has a surface temperature that is
relatively 2 - 5℃ lower. The indoor temperature will also decrease
accordingly, thereby reducing the frequency of using air
conditioning and other cooling equipment, achieving energy
conservation. Taking a 1000-square-meter building as an example, if
aluminum-coated zinc roofing material is used, in summer, it can
save approximately 10% - 15% of air conditioning electricity costs
each month. In the long run, the energy-saving benefits are very
considerable. At the same time, the lower roof temperature can
reduce fatigue damage to the materials due to thermal expansion and
contraction, extend the service life of the materials themselves,
and reduce the labor and material consumption caused by maintenance
and replacement.
In the field of industrial equipment manufacturing, the thermal
reflectivity of aluminum-coated zinc also has practical uses. Some
large industrial equipment, such as oil storage tanks and heating
pipelines in the petrochemical industry, are exposed to the outside
environment for a long time, especially under direct sunlight. The
surface temperature of the equipment will rise sharply. This high
temperature not only affects the normal operation of the equipment
but also accelerates the aging and damage of the equipment. Using
aluminum-coated zinc materials to make the shells or protective
layers of these equipment, by taking advantage of its excellent
thermal reflectivity, can effectively block part of the solar heat,
keeping the surface temperature of the equipment within a
relatively stable range, ensuring the safe and efficient operation
of the equipment, and reducing the occurrence rate of equipment
failures and maintenance costs caused by high temperatures.
In addition, in the automotive manufacturing field, the thermal
reflectivity of aluminum-coated zinc can also play a role. When
cars are parked outdoors in summer, direct sunlight causes the
interior temperature to rise rapidly, not only affecting the riding
experience of passengers but also accelerating the aging of
interior components. Some parts of cars, such as the engine
compartment, use aluminum-coated zinc materials, which can reflect
part of the heat, reducing the accumulation of heat in the engine
compartment, helping the engine maintain a more suitable operating
temperature range, improving the engine's efficiency and service
life.
In conclusion, the excellent thermal reflectivity of
aluminum-coated zinc is not only a physical property of the
material, but also brings practical benefits to multiple fields
such as building energy conservation, industrial equipment
protection, and automotive manufacturing. In the process of
promoting each industry towards efficiency, energy conservation,
and sustainability, it plays an indispensable role. With the
continuous improvement of requirements for energy conservation and
material performance, aluminum-coated zinc, with its advantages
such as thermal reflectivity, will have a broader application
prospects in the future.
