Also, how can I import my ANSYS Transient thermal results to ANSYS Static Structural so that I can determine the effects of the injection molding process on the structural performance of the mold tool?
This depends on the shape of the model. Wrong restraint can produce additional stress and wrong deformation. Try to make it similar to the physical model as much as you can.
If your model rested on a plane surface you can use compression only support.