Pouring metal at high rate into a mold has a certain disadvantages. Are there any disadvantages to pouring it very slowly and how can this be solved?

Rate of Pouring:

The slower the rate of pouring molten metal into the mold, the

lower the fluidity because of the higher rate of cooling when poured slowly. This can lead to incomplete castings.

You could increase the fluidity to solve this issue. Fluidity is the capability for the molten metal to fill the mold cavities. To increase fluidity, one can:

- Create a better mold design, one that allows molten metal to flow more freely.

- Use a different mold material, one with LOW thermal conductivity.

- Superheat the molten metal.

Source(s):

- Manufacturing Engineering & Technology, Sixth Edition.

- I'm also earning a degree in Mechanical Engineering and these things are in my notes.