恒嘉闪耀耐材峰会：共探板状刚玉发展之路

On May 8-9, 2025, Wuhan, Hubei, welcomed a grand event in the field of refractory materials and abrasives - the 8th International Refractory Materials and Abrasives Summit. Shandong Hengjia High Purity Aluminum Industry Technology Co., Ltd., as an important participant in the industry, actively and professionally engaged in the event, creating a brilliant chapter in the communication and development process of the refractory materials industry.

At the summit, the atmosphere was lively and full of energy. Mr. Wang, the Foreign Trade Sales Director of Hengjia Company, had a long and in-depth exchange with the relevant person in charge of Shinagawa Co., Ltd. from Japan. They were in a beautifully decorated conference room with soft lighting, surrounded by industry elites from around the world. In such an atmosphere, both parties discussed refractory material technology. Refractory materials, as the cornerstone of high-temperature industries such as steel, cement, and glass, can trigger significant changes in related industries with each technological innovation. Mr. Wang, drawing on his years of rich industry experience and profound expertise, began by sharing Hengjia's unique R&D approach, discussing how the company addresses various complex technical challenges in the development of refractory materials and how it strictly controls quality in the production process. At the same time, he also listened humbly to the insights from Shinagawa Co., Ltd. The other party introduced the strict requirements for the performance, quality, and environmental protection of refractory materials in the international high-end market, as well as their innovative attempts in new material applications and process optimization. This exchange not only broadened Hengjia's international perspective but also provided valuable ideas for further enhancing product competitiveness and expanding international business.

The sharing of Chairman Shao Changbo of Hengjia at the summit attracted a lot of attention. He stood on the podium with focused lighting, behind him was a huge display screen, and began to conduct an in-depth interpretation of the development of plate-shaped corundum.

In the core processes and technologies of production, Director Shao detailed Hengjia's advanced techniques in raw material handling, pelletizing, and drying. Hengjia is meticulous in raw material selection, using industrial alumina (γ - Al₂O₃) and high-temperature alumina (α - Al₂O₃). To ensure the raw materials reach optimal conditions, precise ball milling techniques are employed. During the ball milling process, particle size is strictly controlled to achieve a D50 of 3 - 10μm, ensuring a reasonable particle size distribution. This precise control serves as a detailed blueprint for the subsequent production of high-quality plate-like corundum, laying a solid foundation. In the pelletizing and drying processes, Hengjia employs a unique two-step pelletizing method. The first step involves forming small balls of 5 - 8mm into larger balls of 20 - 25mm through specific processes, adding only water during pelletizing and strictly controlling the introduction of other substances to ensure the purity and stability of the pellets. The second step is the drying phase, utilizing residual heat of 200 - 500℃ and hot air furnaces to dry, precisely controlling moisture content to ≤1%. This precise temperature control and moisture management imbue the product with a stable "character," ensuring stability and consistency in subsequent use.

When it comes to the development of Chinese plate-shaped corundum, Chairman Shao eloquently narrates, as if leading everyone through the time tunnel of the development of Chinese plate-shaped corundum. From the exploration path that began with the 460m vertical kiln trial by Shandong Huanei in 1996, it was a difficult start for the industry, akin to pioneers groping forward in the dark. By 2002, the production of Hanzhong Yuan marked the beginning of domestic mass production, signifying a crucial step for the Chinese plate-shaped corundum industry from experimentation to mass production. Then, in 2012, during a rapid development period, the output exceeded 100,000 tons/year, ushering in a spring of vigorous growth for the industry. Furthermore, in 2017, Shandong Hengjia's production realized the successful application of domestic raw materials; during this phase, Hengjia not only achieved its own breakthroughs but also set a benchmark for the application of domestic raw materials in the production of plate-shaped corundum. Today, Chinese plate-shaped corundum occupies 65% of the global market share, with export volumes continuously rising. Hengjia has been growing and contributing throughout this journey, witnessing and promoting the Chinese plate-shaped corundum industry to the center stage of the world.

In the recent price trend and future development outlook segment, Chairman Shao clearly demonstrated the advantages of plate corundum in sustainable development through detailed data comparisons, such as the carbon emission comparison between white corundum and plate corundum. In the current environment where environmental protection requirements are becoming increasingly stringent and the market's demand for green products is rising, plate corundum, with its lower carbon emissions and excellent performance, has become an important force for sustainable development in the industry. As the market's demands for product quality and variety continue to increase, along with a strong appeal for reduced overall costs and green low-carbon production, plate corundum, with its outstanding performance and development potential, is ushering in a broader market prospect.

This summit, for Shandong Hengjia High Purity Aluminum Industry Technology Co., Ltd., is not only a stage to showcase its strength and technological achievements but also an important opportunity for in-depth communication with domestic and international peers, gaining insights into industry trends, and seeking win-win cooperation. Hengjia's exploration and practice in the field of refractory materials, especially in the direction of plate-shaped corundum, have injected new vitality into the industry's development. It is believed that in the future, Hengjia will continue to uphold the spirit of innovation, constantly break through in the technological research and development and market expansion of refractory materials, and work hand in hand with industry partners to jointly promote the refractory materials industry to new heights, providing a solid guarantee for the stable development of high-temperature industries.