Geoff, I have to side with the others; I think you'd be looking like a baked potato after even 10 min at 445 degrees F.
Probably the best way to determine the temperature developed at the stylus contact point in the vinyl would be to point a laser-based temperature sensor at the contact spot, during play. One interesting thing that fell out of this particular discourse is that most likely the outer grooves heat up more than the inner grooves during play, because the angular velocity of the stylus tip, and therefore the kinetic energy that has to be dissipated, is greatest at the outside edge of the LP surface. But on the other hand, the groove undulations may be less tortuous at the outer grooves, thereby reducing friction compared to inner.
Anyway, I agree with Ilikmangos, as one might imagine.
Probably the best way to determine the temperature developed at the stylus contact point in the vinyl would be to point a laser-based temperature sensor at the contact spot, during play. One interesting thing that fell out of this particular discourse is that most likely the outer grooves heat up more than the inner grooves during play, because the angular velocity of the stylus tip, and therefore the kinetic energy that has to be dissipated, is greatest at the outside edge of the LP surface. But on the other hand, the groove undulations may be less tortuous at the outer grooves, thereby reducing friction compared to inner.
Anyway, I agree with Ilikmangos, as one might imagine.