Question 89 · LDEK · Dental laboratory technology
Indicate the proper sequence of metal casting fabrication:
1) investment of the wax model;
2) mounting the sprue;
3) fabrication of the mould;
4) cooling the flask;
5) removal of the wax model from the cast;
6) metal casting.
The correct answer is:
2) mounting the sprue;
3) fabrication of the mould;
4) cooling the flask;
5) removal of the wax model from the cast;
6) metal casting.
The correct answer is:
- A. 5,2,1,3,4,6.
- B. 5,2,1,3,6,4.
- C. 5,1,2,3,6,4.
- D. 2,5,1,3,4,6.
- E. 2,5,1,3,6,4.
Hint
The sprue is attached while the pattern is still on the die, and the ring is cooled only after the metal has been cast.
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