在铝合金圆锭生产中，为了便于引锭，一般在圆锭底座（我公司称为引锭头）中间车一个燕尾槽。在立式铸造时，由于引锭头泡在水中，上升时，引锭头上的燕尾槽便会积水，必须用压缩空气吹干，十分麻烦。为此，笔者设计了自泄水式引锭头，可方便地解决此问题。该引锭头在上升时， In aluminum ingot production, in order to facilitate the ingot, usually in the ingot base (I called the starter head) in the middle of a dovetail slot. In the vertical casting, the starter head soaked in water, ascended, the head of the dovetail groove will be stagnant water, you must use compressed air to dry, very troublesome. To this end, I designed a self-venting header, can easily solve this problem. When the starter head is rising,