【摘要】 依据压铸模具浇口计算的基本原理，给出了内浇口截面积和内浇口内金属液流动速度的计算公式．利用传热学理论，在假定的平板铸件上，推导了型腔填充时间计算式，这些算式是压铸过程的流动模拟与温渡场模拟的重要理论依据，并初步分析了确定内浇口截面积的主要影响因素．更多还原

【Abstract】 In this paper,the principles of gate calculation in the die-casting mould are discussed,and the calculation formulas of gate area adn fiow velocity of metal in the gate are given.The calculation formula of filling thime of the cavity based on thermal analysis is also given.And main factors affecting the determination of gate in the die mould are primarily analysed.更多还原