注塑机用钢CL.516D的开发生产实践

Development and Production Practice of CL.516D Steel for Injection Molding Machine

根据技术协议要求,结合产品服役条件,设计了钢的化学成分内控要求,制定了相应的冶炼、轧制及退火工艺,山东寿光巨能特钢有限公司成功开发生产了注塑机用钢CL.516D。产品质量统计表明,屈服强度846~985 MPa,抗拉强度989~1127 MPa,断后伸长率16.5%~20%,20℃冲击功66~95 J;低倍组织良好,一般疏松0~1.0级,中心疏松1.0~1.5级,锭型偏析0~1.0级;钢材的纯净度较好,晶粒度7~8.5级。产品的各项性能指标满足技术协议要求。

According to technology agreement requirements, combining the service conditions of the product, internal control requirements for chemical composition of steel were designed and the corresponding smelting, rolling and annealing processes were worked out. Shandong Shougnang Juneng Special Steel Co., Ltd. successfully developed and produced the steel CL.516D for injection molding machine. The quality statistics showed that the yield strength is 846-985 MPa, the tensile strength is 989-1 127 MPa, percentage elongation after fracture is 16.5%-20% ,the impact energy at 20 -C is 66-95 J. The macrostructure is good, general porosis is grade 0-1.0, center porosis is grade 1.0-1.5, the pattern segregation is grade 0-1.0. The purity of steel is better and the grain fineness grade 7-8.5. Each performance index of the product meets the technical agreement requirements.