Regenerated sand

Introduction and Advantages of Recycled Sand:

1. The SiO₂ content is increased by 1-2% compared to the same type of raw sand.

2. The high-temperature resistance value is improved compared to that of the equivalent raw sand.

3. The sand mold is smooth and has good fluidity.

4. Low impurities, low combustible content, and low gas yield.；

5. Low coefficient of thermal expansion.

Hai Xi (Fujian) Branch of China Academy of Machinery Science and Technology Co., Ltd. is **a subsidiary of a central enterprise established in Fujian Province. It is an important achievement of the tripartite cooperation between China Academy of Machinery Science and Technology Co., Ltd., the Fujian Provincial People's Government, and the Sanming Municipal People's Government. It represents a beneficial exploration of complementary advantages and win-win cooperation between the institute and local governments, as well as a proactive practice of central enterprises serving the development of old revolutionary base areas and fulfilling social responsibilities. Hai Xi Branch is positioned with the grand goal of being a **pioneer of advanced technology, a cultivator of **enterprises, a promoter of transformation and upgrading, and a supporter of scientific development**. Taking the promotion of regional industrial and economic development as its mission, it follows the overall plan of "Four Ones" by establishing a professional technology application research institute, a high-end equipment manufacturing industrial park, an equipment technology innovation service platform, and an advanced equipment manufacturing technology industry incubator. It conducts in-depth research, development, and industrialization in the fields of green manufacturing, precision forming, intelligent equipment, engineering materials, cloud manufacturing, and lightweight solutions. Based in Fujian, facing the West Coast of the Taiwan Strait, and radiating to South China, it continuously **advances industry technological progress, promotes enterprise transformation, and fosters sustained and stable industrial development.。