ã€China Aluminum Industry Networkã€‘Aluminum-coated zinc plate is also called galvanized steel plate. Its aluminum-zinc alloy structure is composed of 55% aluminum, 43.4% zinc and 1.6% silicon cured at a high temperature of 600Â°C. Its entire structure consists of aluminum. - Iron-silicon-zinc, which forms a fine quaternary crystal, then constitutes a barrier that effectively prevents penetration of corrosion factors.
Galvanized steel features:
1. Corrosion resistance:
The corrosion resistance of "55% Al-Zn coated steel coil" comes from the maintenance function of the aluminum barrier layer and the dedication of zinc. When zinc is dedicated to trimming, scratches, and scratches on the coating, aluminum forms an insoluble oxide layer that acts as a barrier to maintenance. Al-Zn alloy steel coils have been subjected to more than 20 years of outdoor exposure experiments in a variety of different atmospheric environments, proving that the trimming maintenance function of 55% aluminum-zinc steel plate is better than 5% aluminum-zinc steel plate.
2. Heat resistance:
The heat resistance of plated 55% aluminum-zinc alloy steel plate is better than that of galvanized steel plate, and the high temperature oxidation resistance of aluminum plated steel plate is similar. Al-Zn alloy steel plate can be used in high temperature environment up to 315 degrees.
Plated 55% aluminum-zinc alloy steel plate has a high reflectivity, making it a heat-resistant barrier; galvanized steel plate almost doubles the heat reflectance of galvanized steel plate, thus, it is used as a roof without painting. And panels can also achieve energy savings.
Because the galvanized steel sheet has excellent adhesion between the zinc layer and the paint, it can be used as a symbolic plate for normal use. It can be painted without pretreatment and weathering treatment; while the galvanized steel sheet requires weathering treatment and pretreatment .
CMOS Explosion-Proof Camera refers to the CMOS sensor, each pixel will be adjacent to an amplifier and A / D conversion circuit, the data is output in a similar memory circuit, so the data of the CMOS process will be generated when the transmission distance is long. Noise, therefore, it is necessary to first amplify and integrate the data of each pixel, but since each pixel of the CMOS sensor is composed of four transistors and one photodiode, the photosensitive area of each pixel is much smaller than the surface area of the pixel itself. Therefore, in the case of the same pixel size, the sensitivity of the CMOS sensor is lower than that of the CCD sensor, but the cost of the CMOS is lower due to the process gap.
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