摘要
采用连续铸挤工艺生产Al-Sr中间合金线材,对Al-Sr中间合金质量的影响因素:合金化工艺、铸挤轮速度、合金液浇注温度、冷却水流量等进行研究。试验表明,采用合理的合金化工艺和N2精炼除气技术,在铸挤轮速度为15r/min,冷却水流量5L/min,合金液浇注温度为780~800℃的情况下,Al-Sr中间合金线材表面质量好,气孔少,Al4Sr晶粒细小均匀,呈弥散分布。
Continuous casting and extrusion(CASTEX)technology is adopted to produce Al-Sr master alloy rod.The factors affecting the quality of Al-Sr master alloy-alloying technology-CASTEX wheel velocity-pouring temperature of alloy-and flux of cooling water are studied.Experiments indicate that adopting reasonable alloying technology and degassing technology of N 2 -under the condition of velocity of15r / min-flux of cooling water of5 L/ min-pouring temperature of780-800℃-Al-Sr master alloy rod has good surface quality-less porosities and Al 4 Sr grains are fine and homogeneous and dispersed uniformly.
出处
《轻合金加工技术》
CAS
2003年第3期19-22,共4页
Light Alloy Fabrication Technology
关键词
连续铸挤
合金化
AL-SR中间合金
continuous cast extrusion
alloying technology
Al-Sr master alloy