【摘要】 针对用户对圆环链用 2 0Mn热轧圆钢负公差轧制的严格要求 ,采取了优化轧制工艺设计和设备技术改进等一系列措施 ,保证了研制开发的圆环链用热轧圆钢的各项性能和外形尺寸等技术指标全部达到标准和用户的要求更多还原

【Abstract】 Aiming at the strict request of minus tolerance rolling of 20Mn hot rolled bar steel, measures such as optimizing rolling craftwork and improving technique and equipments etc. are adopted, then apiece item capability and form dimension of developed 20Mn hot rolled bar steel can all reach the requests of standards and the needs of user.更多还原