六、压模的设计(五) (3)内浇口的位置 由于铸件形状、体积、壁厚都是无规律的,所以内浇口的位置只能作原则的规定。选择内浇口的位置时,应注意以下几点: A、应尽量使流入型腔金属熔液减少迂回和曲折,避免产生过多的涡流——涡流现象一般是不可避免的。 B、应尽量使流入型腔的金属熔液减少分流。因为分流后再合流必然造成合流处的冷接痕(冷隔),必要的分流应在合流处设 Sixth, the design of the die (five) (3) the position of the gate Because of casting shape, size, wall thickness is irregular, so the gate position can only be the principle of the provisions. Select the gate position, should note the following: A, should try to make the inflow of molten metal into the cavity roundabout and twists and turns, to avoid excessive vortex - vortex phenomenon is generally inevitable. B, should try to make the molten metal into the cavity to reduce the shunt. Because the diversion after the merger will inevitably lead to the junction of the cold joints (cold), the necessary diversion should be set at the junction