Extrusion Process Optimization of Novel Automobile Radiator with Magnesium Alloy Containing Titanium
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摘要: 采用不同的挤压温度、挤压速度和挤压比, 进行了新型含钛镁合金汽车散热器的挤压成型, 测试与分析其力学性能。结果表明:随挤压温度从320℃提高至420℃、挤压速度从1.5 m/min增大至3.5 m/min、挤压比从12增大至24, 散热器的抗拉强度先增大后减小, 断后伸长率变化幅度较小。新型含钛镁合金汽车散热器的挤压温度、挤压速度和挤压比分别优选为:380℃、2.5 m/min、20。Abstract: Novel automobile radiator containing titanium-magnesium alloy was produced with different extrusion temperatures,extrusion speeds and extrusion ratios,and the mechanical properties were tested and analyzed.The results show that with extrusion temperature from 320 ℃ to 420 ℃,extrusion speed from 1.5 m/min to 3.5 m/min and extrusion ratio from 12 to 24,the tensile strength of the radiator first increases and then decreases,and the elongation after fracture changes slightly. The optimized extrusion temperature,extrusion speed and extrusion ratio are 380 ℃,2.5 m/min and 20,respectively.
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Key words:
- Ti-containing magnesium alloy /
- automobile radiator /
- extrusion process /
- mechanical properties /
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