采用可控内形技术实现了筒形件毛坯热收口不修内弧或少修内弧的目的。
The hot contracting process without inner arc modified or little inner arc modified has been realized after the inner shape controlled technique has been used.
结果表明，超高冷却速率使过冷度变大，形核率升高，新相形核主要以晶内形核为主。
It was demonstrated that condensate depression and nucleation rate increase with increasing cooling velocity and intracrystalline nucleation is main nucleation form of the new phase.
铝电解槽炉膛内形严重影响着电流效率，而铝电解槽的炉膛内形与电解质的过热度有很大的关系。
The cell ledge seriously impacts on current efficiency in aluminium production and the superheat of electrolyte greatly links with the ledge.
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