【Technical Background】

As the core equipment for efficient operation and environmental emission control of units in the power, metallurgy, chemical and other industries, the flue gas recirculation fan's impeller operates for long periods under harsh conditions of high temperature, high dust concentration, and strong erosion. Wear problems occur frequently, severely shortening equipment service life and increasing operation and maintenance costs.Beijing TiDun KejiAfter in-depth research on the wear problems of flue gas recirculation fans, combined with the proprietary 【Metal-Ceramic Composite Precision Manufacturing Technology】, the dovetail ceramic inlay process has completely solved the pain point of flue gas recirculation fan wear.

1. Ultra-wear-resistant material substrate: High-purity silicon carbide ceramic material is adopted, with a hardness of 9 on the Mohs scale, far exceeding traditional metal materials. It can withstand the high-speed erosion and cutting of hard dust particles in flue gas, fundamentally preventing the aggravation of wear and greatly extending the equipment service cycle.

2. Excellent environmental adaptability: It possesses outstanding high-temperature resistance and can operate stably for long periods in high-temperature flue gas environments above 400°C. At the same time, it has excellent corrosion resistance, enabling it to adapt to complex flue gas compositions across multiple industries, avoiding material oxidation and deformation, and ensuring operational stability.

3. Firm composite process:The proprietary TiDun ceramic composite forming process is adopted to achieve a high-strength bond between the wear-resistant ceramic layer and the fan impeller substrate, effectively avoiding hidden risks such as ceramic layer detachment and cracking that are prone to occur with traditional spraying and surfacing welding processes, thereby improving product reliability and service life.

4. Full-process quality control:From raw material selection and precision forming of the ceramic layer to stringent inspection of finished products, a full-chain quality control system is established to ensure that the dimensional accuracy and wear resistance of every product meet industry standards and customer operating condition requirements.

TiDun【Metal-Ceramic Composite Precision Manufacturing Technology】is widely adaptable to flue gas recirculation fans of various power ratings in scenarios such as coal-fired units in the power industry, smelting flue gas treatment in the metallurgical industry, and waste gas recirculation in the chemical industry. Customized anti-wear solutions can be provided according to different fan models and operating condition parameters.

【Practical Application Results】

In the flue gas recirculation fan impeller project of China Energy Group, this ceramic anti-wear product was successfully implemented. After project commissioning, continuous monitoring by the power plant's equipment department showed that as of December 24, 2025, the impeller equipped withTiDun's 【Metal-Ceramic Composite Precision Manufacturing Technology】 inlay processhas been operating stably for more than 800 days. Fan vibration has consistently remained within the normal range, and no obvious wear marks have been found on the impeller surface. The traditional impeller replacement cycle of 1-2 years has been extended to more than 3 years, significantly reducing spare parts procurement and shutdown maintenance costs, ensuring continuous and stable power generation of the unit, and receiving high recognition from the owner unit.