体育器材用镁基型材挤压工艺研究与优化

发布时间：2019-01-03 16:42

【摘要】：为了改善体育器材用镁基合金型材的塑韧性和强度,基于织构和力学性能的分析结果,采用不同的挤压温度、挤压速度和挤压比对Mg-Al-Sn-In新型镁合金型材挤压工艺进行了优化。结果表明,在试验条件下,随挤压温度从300℃提高到400℃,型材的抗拉强度和屈服强度均先提高后下降,断后伸长率先提高后基本不变;随挤压速度从1m/min增大到3 m/min或挤压比从10增大到20,型材的抗拉强度、屈服强度和断后伸长率均先提高后下降。与300℃挤压相比,375℃挤压型材的抗拉强度、屈服强度和断后伸长率分别增加27%、62%、201%;(0002)基面的织构最大值减小27%。型材的挤压工艺优选为:挤压温度375℃,挤压速度2.5 m/min,挤压比13。
[Abstract]:In order to improve the ductility and strength of magnesium based alloy profiles for sports equipment, different extrusion temperatures were adopted based on the analysis results of texture and mechanical properties. The extrusion speed and extrusion ratio of Mg-Al-Sn-In magnesium alloy profile were optimized. The results show that with the increase of extrusion temperature from 300 鈩，

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