Casting a hollow bronze statue

In the picture

1. 1The outer ceramic shell: a hard layer that holds the shape.
2. 2The inner core: the solid part that creates the hollow inside the statue.
3. 3The empty space: the place left by melted wax, which will receive the metal.
4. 4The pour basin: the opening through which molten bronze enters.
5. 5The stream of molten bronze: the glowing metal flowing into the mold.

Examples

• A bronze trophy
• A dental crown made from a wax pattern

Quiz: Casting a hollow bronze statue (Age 15)

1. 1

   What is the wax model used for in this casting process?

   • It provides a temporary shape that is later melted out.
   • It creates the solid inner core inside the statue.
   • It becomes the hard outer ceramic shell after heating.
2. 2

   How is the hollow space for the molten bronze created?

   • The wax stays inside and leaves a hollow when it cools.
   • The molten bronze burns away the middle as it enters.
   • The inner core and outer shell leave a gap between them.
3. 3

   What happens to the wax before the molten bronze is poured?

   • It is coated with bronze to make the outer shell.
   • It is heated so it melts away and leaves an empty space.
   • It is taken out and placed in the pour basin.

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.