Qingdao Weiyemingde Industrial Machinery Group Co., Ltd.

The R&D team has developed a new lost foam casting process to produce wear-resistant cast iron, achieving high dimensional accuracy, low surface roughness, and excellent performance, reducing casting defects and component segregation, and achieving precise control of the casting structure of wear-resistant cast iron. Compared with traditional domestic casting products, the wear resistance of the product is more than 3 times higher, and more than 2 times higher than similar Japanese products, which can meet the needs of machinery, shipbuilding, automobile and other manufacturing industries for high-precision, high-performance wear-resistant cast iron.

The new generation of naitang steel sleeves developed by the R&D team has achieved the synchronous regulation of the organization and performance of centrifugally cast wear-resistant steel sleeves, breaking through the bottleneck of high-performance complex structure steel sleeves efficient centrifugal casting technology. The new generation of steel sleeves has improved wear resistance by 20%, significantly extending the life of the equipment. It has broad application prospects in the fields of automobiles, engineering machinery, ships, compressors, power generation equipment and agricultural machinery.

The R&D team has achieved precise control of the size, shape and internal structure of the steel ball through precision casting, reduced the internal defects of the steel ball, improved the surface finish, and achieved control of the grain size and morphology. The wear resistance of the steel ball has been improved by 1.7 times, which can meet the application requirements of high precision and high performance, and has broad application prospects in mining, machinery manufacturing and other fields.

The R&D team has proposed a new idea of improving the room temperature and high temperature mechanical properties of cast alloys by adjusting the elemental composition of titanium-based alloys, reducing the stacking fault energy of the alloys, and promoting the formation of growing Li crystals. This has achieved a significant improvement in the room temperature and high temperature mechanical properties of titanium-based alloys, as well as the high-strength and toughness preparation of titanium alloys. The product of this achievement is currently the highest performance publicly available internationally.