CAJ | 학술논문

20MnB4冷镦钢常用于生产8．8～10．9级高强度紧固件。介绍了邢钢Φ34 mm20MnB4冷镦钢盘条的生产工艺、金相组织和力学性能。通过成分设计、炼钢、轧钢生产工艺优化，盘条的化学成分、冷镦性能、夹杂物、脱碳层等均达到控制目标要求。用户使用结果表明，20MnB4盘条能够满足生产汽车用底盘螺栓的指标要求。
20MnB4랭대강상용우생산8．8～10．9급고강도긴고건。개소료형강Φ34 mm20MnB4랭대강반조적생산공예、금상조직화역학성능。통과성분설계、련강、알강생산공예우화，반조적화학성분、랭대성능、협잡물、탈탄층등균체도공제목표요구。용호사용결과표명，20MnB4반조능구만족생산기차용저반라전적지표요구。
20MnB4 cold heading steel is often used to produce 8.8 to 10.9 levels high-strength fasteners.It is introduced the production process, metallographic structure and mechanical properties ofФ34 mm 20MnB4 cold heading steel wire bar of Xing Steel.With optimization of composition design, steel-making and roll-ing processes, the chemical composition, cold heading property, inclusion and decarburization layer of the bar all reach the control target, the bar is proved in application of customers to be able to be used in produc-tion of automobile chassis bolt.