摘要
采用不同的工艺参数进行了Mg-Mn-Ti-Ce新型镁合金路灯控制器外壳的挤压,并进行了拉伸性能测试与分析。结果表明：随挤压温度从300℃增至400℃、挤压速度从2.5 m/min增至4 m/min或挤压比从9增至18,外壳拉伸强度先提高后下降。挤压温度、挤压速度和挤压比分别优选为375℃、3.5 m/min、15。与300℃挤压相比,375℃挤压时外壳的抗拉强度增大111 MPa;与2.5 m/min挤压相比,3.5 m/min挤压时外壳的抗拉强度增大39 MPa;与挤压比9时挤压相比,挤压比15时挤压的外壳抗拉强度增大84 MPa。
The shells of Mg-Mn-Ti-Ce new type magnesium alloy street lamp controller were extruded by adopting different technological parameters, and the tensile properties were tested and analyzed. The results show that with extrusion temperature increasing from 300℃ to 400℃, extrusion speed increasing from 2.5 m/min to 4 m/min, or extrusion ratio increasing from 9 to 18, the tensile strengths increase firstly and then decrease. The optimized extrusion temperature, extrusion speed and extrusion ratio is 375℃, 3.5 m/min and 15, respectively. Compared with extrusion at 300℃, the tensile strength of the shell extruded at 375℃ increases by 111 MPa; compared with the extrusion speed of 2.5 m/min, the tensile strength of the shell extruded at 3.5 m/min increases by 39 MPa; compared with extrusion ratio of 9, the tensile strength of the shell extruded at extrusion ratio of 15 increases by 84 MPa.
作者
黄进
邓皓
HUANG Jin1, DENG Hao2(1. Chongqing Industry Polytechnic College, Chongqing 401120, China; 2. School of Optoelectronic Engineering, Chongqing University, Chongqing 400044, Chin)
出处
《热加工工艺》
CSCD
北大核心
2018年第3期133-135,139,共4页
Hot Working Technology
基金
重庆市教委科学技术研究项目(KJ1603007)
