Casting simulation of cast steel joint based on Pro-CAST

International Conference on Manufacturing Technology, Materials and Chemical Engineering

材料科学;化学工业

Gao, Yiqi^1 ; Sun, Sijia^1 ; Jin, Hui^1

Jiangsu Key Laboratory of Engineering Mechanics, Department of Civil Engineering, Southeast University, Nanjing

211189, China^1

关键词: Cast steel joint;    Casting defect;    Casting process;    Casting quality;    Casting simulations;    Complex stress;    Quality inspection;    Ultrasonic flaw detection;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/592/1/012086/pdf
DOI  :  10.1088/1757-899X/592/1/012086

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The casting process is usually divided into five steps of melting, molding, casting, heat treatment and testing. This paper focuses on the two stages of casting and quality inspection of a casting process for a cast steel joint in actual engineering. Studies have shown that the sharp change or improper arrangement of the sections of cast steel joints will make certain areas more likely to produce defects than other areas, and these areas are often complex stress locations when they are in service, which leads to "risk-on-risk". So both structural design and process design should pay attention to these issues. The analysis results show that ultrasonic flaw detection can detect casting defects but cannot be quasi-deterministic. The setting of riser and cold iron plays a key role in casting quality. The design of riser has a great influence on the generation and distribution of casting defects.