摘要
由于浇铸工艺、合金性质等条件的影响，铸件内部存在着裂纹、孔洞等缺陷，严重影响铸件的性能。重点分析了铸件产生热裂、冷裂的原因与影响因素，并提出分析裂纹生成与扩展的理论与方法，对铸件的设计有一定的指导参考意义。
According to the casting process, alloy and other conditions, there are some defects, such as crack and porosity, inside of casting. The property has been deteriorated with such defects. The formation mechanism of hot tear and cold crack is analysed. An approach to analyze crack formation and spreading is proposed, which is a benefiting to casting design.
出处
《铸造工程》
2010年第4期12-15,共4页
Foundry Engineering
关键词
铸件
热裂
冷裂
断裂力学
casting
hot tear
cold crack
crack mechanics
