Unqualified Z8A bainite nodular cast iron wedge was analyzed by chemical and metallograph analysis and was related to its cast and heat treatment process.

• 对转8A贝氏体球墨铸铁斜楔生产中出现的球化率和渗碳体不合格问题进行了分析,并从铸造和热处理工艺方面探讨了影响材料性能的因素及改善和提高材料性能的途径。