Abstract: This paper has deduced a new method for risering， Δ—Parametric method.It has proved with the test curve of the British Castin g P ractice Commission.Practical results have well perfected furt her the perimetrischen quotlent method for risering.A
Abstract: This paper has deduced a new method for risering， Δ—Parametric method.It has proved with the test curve of the British Castin g P ractice Commission.Practical results have well perfected furt her the perimetrischen quotlent method for risering.A
文摘:提出的冒口设计新方法—Δ参数法，与英国铸造实践委员会给出的实验曲线相互印证其实用性，进一步完善了冒口设计的周界商法；得出了冒口补缩效率与铸件和冒口的周界商比值成正比的结论。