Independently developed casting materials and core technologies improve the quality of Rail Transit Casting products

In the production of rail transit castings, the choice of casting materials has a crucial impact on the quality of the final product. Ningbo Jinhui Precision Casting Co., Ltd. is well aware of this. Through years of technical accumulation and R&D investment, it has developed special casting materials suitable for Rail Transit Casting. These independently developed casting materials have many advantages.
These casting materials have extremely high thermal stability. In the production process of rail transit castings, the casting needs to undergo a long melting and solidification process at high temperature. Jinhui's casting materials can maintain good stability at high temperatures, avoid casting defects caused by material deformation, and ensure the dimensional accuracy and structural stability of Rail Transit Casting products. Whether in the traction system of high-speed buses or in the connection system of heavy trucks, this casting material can effectively prevent deformation and cracks, and improve the service life and reliability of castings.
Jinhui's casting materials have good impact resistance. In rail transit systems, components are often faced with impact forces from high-speed driving and heavy loads. Especially key components such as buffer systems and steering systems have extremely high requirements for impact performance. By developing high-toughness casting materials, Jinhui can ensure that Rail Transit Casting castings are not easy to break during long-term use and have stronger fatigue resistance, thereby reducing the frequency of failures.
Jinhui's casting materials also have low pores and inclusions, which are crucial to the quality of Rail Transit Casting. The presence of pores and inclusions not only affects the mechanical properties of the casting, but may also cause cracks or breaks in the parts during use. Jinhui has significantly reduced the occurrence of these defects and improved the density and corrosion resistance of the castings by optimizing the formula and process of the casting materials.

In addition to the research and development of casting materials, Ningbo Jinhui Precision Casting Co., Ltd. has also made a lot of innovations in core technologies to further improve the quality and performance of Rail Transit Casting. In the casting process, the application of core technologies plays a decisive role in the precision, strength and difficulty of subsequent processing of castings.
Among them, one of Jinhui's core technologies in the casting process is Core Assembly Molding. This technology enables castings to better meet the needs of subsequent processing and assembly by precisely controlling the shape and size of the casting core. For complex components such as the buffer system and steering system in Rail Transit Casting, Jinhui's core technology ensures that these components have high dimensional consistency and interchangeability during the manufacturing process. The application of this technology allows for quick and accurate replacement during product assembly, reducing maintenance cycles and costs.
Jinhui uses Solidification Simulation technology in the casting process, using computers to simulate the process of castings from liquid to solid. This technology helps Jinhui predict the defects that may occur in the solidification process of castings before production, and optimize them by adjusting process parameters. This technology enables Jinhui to find problems and make timely adjustments in the early stages of casting production, avoiding defects that may occur in traditional casting methods and improving the overall quality of castings.

Rail Transit Casting has very high requirements for precision casting technology, especially in the manufacture of key components such as traction, connection, braking and buffering of rail transit systems. Jinhui's core technologies in precision casting, including precision Shell Molding and Investment Casting, ensure that castings can achieve very high dimensional accuracy and finish. These processes can ensure that castings do not have defects such as pores and cracks during the production process, while providing good surface quality to meet the high standards of rail transit systems for parts.

Through independently developed casting materials and core technologies, Ningbo Jinhui Precision Casting Co., Ltd. has taken a leading position in the domestic market and successfully expanded the international market. The company has passed the certification of the American Association of Railroads (AAR) and has become an important supplier to the international railway industry. Jinhui's Rail Transit Casting products have been widely recognized in the European and American markets and have become a solid guarantee for global railway transportation safety.