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.

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.

CPE 135A

Chlorinated polyethylene is a saturated polymer material with a white powder appearance. It is non-toxic and tasteless. It has excellent weather resistance, ozone resistance, chemical resistance and aging resistance. It has good oil resistance, flame retardancy and coloring properties. It is an excellent impact modifier for PVC plastics and a synthetic rubber with good comprehensive performance. It has a very wide range of applications and has been widely used in cables, wires, hoses, tapes, rubber and plastic products, sealing materials, flame retardant transport belt , Waterproof coiled material, film and various profiles and other products.

As a PVC impact modifier, CPE135A has many advantages such as low price, excellent performance, and excellent aging resistance, but it has certain disadvantages in the use of high impact and high hardness products and low temperature resistant products CPE135A. For example, in the formulation of rigid PVC, a large amount of CPE will reduce the hardness and rigidity, which reduces the physical properties of the product; in addition, when the low temperature resistance requirement of PVC products exceeds minus 30°C, CPE135A cannot meet the requirements. Under normal circumstances, modified CPE, such as ACM, RGC135A, etc., can be selected for rigidity and hardness improvement; for low-temperature resistance modification, impact-resistant ACR or other impact modifiers with lower glass transition temperature can be selected.

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