The invention relates to an aluminum base conductor with high heat resistance and high conductivity in medium and a preparation method, which belongs to the field of material technology. The invention of the aluminum wire high strength heat-resistant high conductivity is composed of metallic and non-metallic elements made of aluminum mass was 1 mg 0.5~0.6%, 0.25~0.3%, 0.1~0.3%, silicon doped cerium hafnium 0.2~0.6%, 0.02~0.3%, B 0.1~0.3%; the invention with erbium, hafnium, boron, magnesium, silicon and other elements in aluminum, to gas and impurity, refinement, prevent segregation and improve the organization, improve the heat resistance of the alloy; can homogenize the structure, promote more Mg2Si strengthening phase formation, improve the Aluminum Alloy strength; improve the microstructure, Aluminum Alloy grain refinement, the second phase of coarse fine and uniform. And avoid the local pitting corrosion pits grow, enhancing the corrosion resistance of alloy; the impurity elements changed from the form of solid solution to precipitate state sink to the bottom of the melt, reduce the lattice distortion of the internal conductor, reduce electron transfer The conductivity of the alloy is increased by the collision with the distorted lattice atom during the transmission.
【技术实现步骤摘要】
一种中强度高耐热高导电率的铝基导线及制备方法
本专利技术涉及一种中强度高耐热高导电率的铝基导线及制备方法,属于材料
技术介绍
近年来,电力需求不断提高,电力能源在传输中有更高的要求,建设以高压线路为基础的电网备受关注。但是,从资源节约角度考虑,传统铝线的强度成了最大的阻碍,因此提高输电导线的强度迫不及待。然而铝合金导体材料的强度和导电率是一对矛盾体,如何较好的兼顾两者的指标成为了当前导电铝合金发展的关键。
技术实现思路
本专利技术的目的是公开一种中强度高耐热高导电率的铝基导线,由以下金属元素和非金属元素制得:铝的质量计为1,镁0.5~0.6%、硅0.25~0.3%、铒0.1~0.3%、铈0.2~0.6%、铪0.02~0.3%、硼0.1~0.3%。本专利技术的另一目的是提供该中强度高耐热高导电率的铝基导线的制备方法,具体步骤如下:(1)将铝锭加热熔化成铝水;(2)在高于铝熔点的温度条件下,步骤(1)所得铝水中添加硅、铝锗中间合金、铝铈中间合金、铝铪中间合金、铝硼中间合金并分散均匀,保温10~15min后加入镁,再保温10~15min,依次加入打渣剂、精炼剂搅拌5~10min后通入氮气,静置扒渣得到铝合金液;(3)将步骤(2)所得铝合金液静置,在温度为700~750℃条件下浇注得到铝基材料;(4)将步骤(3)所得铝基材料依次置于温度为470~550℃的条件下均匀化处理8~12h,温度为500~555℃的条件下固溶处理1~3h得到热处理铝基材料;(5)将步骤(4)所得热处理铝基材料进行多道次顺序轧制变形得到铝基材料圆杆,再经常温多道次拉拔得到铝基导线单丝, ...
【技术保护点】
一种中强度高耐热高导电率的铝基导线,其特征在于,由以下金属元素和非金属元素制得:铝的质量计为1,镁0.5~0.6%、硅0.25~0.3%、铒0.1~0.3%、铈0.2~0.6%、铪0.02~0.3%、硼0.1~0.3%。
【技术特征摘要】
1.一种中强度高耐热高导电率的铝基导线,其特征在于,由以下金属元素和非金属元素制得:铝的质量计为1,镁0.5~0.6%、硅0.25~0.3%、铒0.1~0.3%、铈0.2~0.6%、铪0.02~0.3%、硼0.1~0.3%。2.如权利要求1所述的中强度高耐热高导电率的铝基导线的制备方法,其特征在于,具体步骤如下:(1)将铝锭加热熔化成铝水;(2)在高于铝熔点的温度条件下,步骤(1)所得铝水中添加硅、铝锗中间合金、铝铈中间合金、铝铪中间合金、铝硼中间合金并分散均匀,保温10~15min后加入镁,再保温10~15min,依次加入打渣剂、精炼剂搅拌5~10min后通入氮气,静置扒渣得到铝合金液;(3)将步骤(2)所得铝合金液静置,在温度为700~750℃条件下浇注得到铝...
【专利技术属性】
技术研发人员:陈亮维,李平安,杨钢,吴云峰,全琪,刘状,
申请(专利权)人:昆明理工大学,
类型:发明
国别省市:云南,53
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