GL steel coil is an important alloy material often used in daily life. The galvalume steel coil is composed of aluminum-zinc alloy structure, which is composed of 55% aluminum, 43% zinc and 2% silicon solidified at a high temperature of 600℃. The entire structure is composed of aluminum-iron-silicon-zinc, forming a dense four-element An alloy of crystals. GL,GL Steel Coil,GL Steel Sheet,GI GL,Aluminium Galvanized Steel Coil Jinan Hengming Steel Co., Ltd , https://www.jnhengmingsteel.com
The full M5AFA3G fuel assembly is one of the world's most advanced nuclear fuel components. This technology has been mastered by developed countries such as Europe and the United States. The use of new nuclear fuel assemblies is also an important part of the implementation of the 1/4 refueling technology in the first phase of the Ling Ao Nuclear Power Plant. At present, China's nuclear power plants use 1/3 refueling technology, which replaces one-third of the entire reactor fuel assembly every year to maintain the full power of the reactor. Since the new nuclear fuel assembly can greatly improve the fuel consumption and corrosion resistance of the fuel, it can improve the average fuel consumption of the components and improve the economics of the fuel assembly.
According to estimates, the two units of the Ling Ao Nuclear Power Plant use new fuel assemblies. After implementing 1/4 refueling, the annual fuel cost can be saved by about 20 million US dollars.
Characteristics: Aluminium galvanized steel coil has many excellent characteristics: strong corrosion resistance, 3 times that of pure Galvanized Coil; beautiful spangles on the surface, which can be used as building exterior panels.
1. Corrosion resistance:
The corrosion resistance of "aluminized zinc steel coil" is mainly due to the protective function of aluminum and aluminum. When zinc is worn, aluminum forms a dense layer of aluminum oxide, which prevents corrosion-resistant substances from further corroding the interior.
2. Heat resistance:
aluminum-zinc alloy steel coil has good heat resistance and can withstand high temperatures of more than 300 degrees Celsius. It is similar to the high temperature oxidation resistance of aluminum-plated steel sheets. It is often used in chimney pipes, ovens, luminaires and fluorescent lampshades.
3. Heat reflectivity:
The heat reflectivity of Galvanized Steel Coil is very high, which is twice that of galvanized steel. People often use it as a material for heat insulation.
4. Economy:
Because the density of 55%AL-Zn is lower than that of Zn, the area of galvanized steel coil is more than 3% larger than that of coated steel coil with the same weight and the same thickness of gold plating.
use
Construction: roofs, walls, garages, soundproof walls, pipes and modular houses, etc. Automobiles: mufflers, exhaust pipes, wiper accessories, fuel tanks, truck boxes and other home appliances: refrigerator back panels, gas stoves, air conditioners, electronic microwave ovens, LCDs Frames, CRT explosion-proof belts, LED backlights, electrical cabinets and other agricultural applications: pig houses, chicken houses, granaries, greenhouse pipes, etc. Others: thermal insulation covers, heat exchangers, dryers, water heaters, etc.
Precautions for use
Storage: It should be kept indoors such as warehouses, kept dry and ventilated, and do not store it in acidic climates for a long time. When storing outdoors, it is necessary to prevent rain, and avoid condensation caused by oxidation stains. Transportation: To avoid external impact, SKID must be used to support steel coils on transportation tools to reduce stacking and take rain-proof measures. Processing: The same lubricating oil as the aluminum plate is required for the cutting process of COILCENTER. When drilling or cutting galvanized steel sheets, the scattered iron filings must be removed in time.
Commonly used post-treatment of galvanized steel coil
DRY dry OIL oiling Chromate chromate passivation AFP/Galva clean resistant to fingerprints Non-Gr, Gr-free, cadmium-free and fingerprint resistant
It was learned from Guangdong Nuclear Power Group that China's first batch of full M5AFA3G fuel assemblies was officially delivered to the Ling Ao Nuclear Power Plant. This is one of the improvements in the core design of China's million kilowatt nuclear power unit, marking a new level of localization of China's high fuel consumption fuel assembly manufacturing.