TAPERED THREADED PULLER HEAD

摘要

A puller head mold for receiving molten metal or alloy during the casting of an ingot, the puller head mold having a tapered screw thread structure. The tapered threaded puller head is used to pull and withdraw a cast ingot from a casting furnace, and can be particularly useful for the handling of ingots having a relatively narrow diameter. The tapered threaded puller head profile provides for full release of the tapered threaded puller head from a cast ingot in a fraction of a turn. The size and profile of the cast ingot formed with the tapered threaded puller head is resilient to thermal gradients while cooling.

主权项

1. A puller head casting mold, comprising:
a mold body having an annular shape with an upper surface, a bottom surface, a radial surface, and an interior screw thread surface; wherein the interior screw thread surface defines an interior cavity, and the interior screw thread surface is tapered to narrow a diameter of the interior cavity along an axis normal to the mold body from the upper surface to the bottom surface.