Based on the actual casting cases of cylinder block castings collected from domestic foundry enterprises, combined with the existing achievements in the academic field, through the analysis of cases, the method of statistical research, making full use of a large number of casting and riser process data and advanced experience of the manufacturer, the process scheme is optimized, and the typical casting and riser technology of cylinder block iron castings is summarized, and the casting and riser process design of cylinder block iron castings is modified Based on the basic data of typical pouring and riser technology of cylinder block iron castings, the casting process database is designed and developed, and the special digital pouring and riser process system for cylinder body iron castings is built to realize the digital design of pouring and riser process of cylinder body iron castings, so as to guide the precise forming and quality control of cylinder body castings; the special digital pouring and riser process system for cylinder block iron castings is used as a tool, The process design of digital pouring riser for typical cylinder block iron castings was carried out, and the pouring test of typical cylinder block iron castings was completed, and the casting quality and performance of iron castings were determined.
The research background and significance of the project are described. The research status of cast-in-place riser manufacturing technology of engine cylinder block iron castings at home and abroad and the status of digital casting of cylinder block are introduced. The significance and content of the research are proposed.
General situation and process statistics of cylinder block iron castings. This paper introduces the basic information of typical cases of cylinder block iron castings, including the types and classification methods of engine block iron castings, casting technical requirements, common casting defects and process overview of engine cylinder block iron castings.
Typical casting process recommendation and design of cylinder block iron castings. Based on the actual casting cases of cylinder block castings collected from domestic foundry enterprises as the research materials, through the analysis of cases and the research method of statistical design data analysis, the gating and riser process model was established, the typical pouring and riser technology of cylinder block iron castings was summarized, and the casting process design method of cylinder block castings was modified, and the casting process design principles of cylinder block castings were put forward.
Establishment and experiment of digital casting system. Design and develop casting process database, build digital casting riser process system of cylinder block iron castings, complete the system test, operation and maintenance, and guide the accurate forming and quality control of cylinder body iron castings.
The digital design and pouring test of typical cylinder block cast iron casting riser process were completed, and its surface quality and mechanical properties were measured, and the rationality and correctness of gating and riser process system were tested.
Conclusion and prospect. This paper further summarizes the research work of this project, points out the research conclusions and shortcomings, and puts forward the research direction and focus in the next stage.