Question

How can we calculate the solidification time?

(a) Shrinkage volume consideration method

(b) Modulus method

(c) Novel research method

(d) Chvorinov’s rule

I have been asked this question in final exam.

My query is from Riser Design topic in portion Pattern and Mould, Principles of Gating & Risering of Casting-Forming-Welding I

Answer 1

Right option is (d) Chvorinov’s rule

The explanation is: Shrinkage volume consideration method, Modulus method, and Novel research method are used for riser design. For calculation of solidification time, Chvorinov’s Rule is used. The Same rule can be modified for riser design called as Caine’s method.