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本文是讨论P—Q~2图及其在压铸企业应用价值的三篇文章中的第一篇文章。本篇将从基本概念出发解释涉及金属流动的流体力学原理。它研究在P—Q~2图的“需要压力线”并讨论鹅颈、直浇道、内浇口的影响和在其中的金属流动情况。以这些新的研究成果为企业在市场竞争中提供有效的手段和机会。 在“压铸工程师”杂志上,相继出版发行的两篇文章将是:“有效压力线”和“交会点”。这些文章将使压铸工作者能较好地理解P—Q~2图,从而在它提供的改进中得到效益。
This article is the first article in the three articles that discusses the P-Q ~ 2 diagram and its application in the die casting business. This article will explain the fundamental concepts of fluid mechanics involving metal flow. It examines the “Need for Pressure Lines” in P-Q ~ 2 and discusses the effects of goosenecks, sprue, gates and metal flow in them. With these new research results for enterprises in the market competition to provide effective means and opportunities. In “Die Casting Engineer” magazine, published two articles will be published: “effective pressure line” and “rendezvous point.” These articles will give die-casting workers a better understanding of P-Q ~ 2 diagrams, thus benefiting from the improvements it offers.