Which of the following relations is given by chvorinov for the solidification time of a casting?(a) ts = k(V/SA)^2(b) ts = k(V/SA)(c) ts = k(V*SA)^2(d) ts = k(V/SA)^3I got this question in my homework.Origin of the question is Riser Design in section Pattern and Mould, Principles of Gating & Risering of Casting-Forming-Welding I

Which of the following relations is given by chvorinov for the solidif

1.	Which of the following relations is given by chvorinov for the solidification time of a casting?(a) ts = k(V/SA)^2(b) ts = k(V/SA)(c) ts = k(V*SA)^2(d) ts = k(V/SA)^3I got this question in my homework.Origin of the question is Riser Design in section Pattern and Mould, Principles of Gating & Risering of Casting-Forming-Welding I
Answer» The correct option is (a) ts = k(V/SA)^2 For explanation I would say: Chvorinov scientist has shown that the solidification time of a CASTING is directly proportional to the square of the ratio of VOLUME-to-SURFACE area of the casting and the constant of proportionality is KNOWN as mould constant. His RELATION is given by:ts = k(V/SA)^2, where ts = solidification time, V = volume, SA = surface area, k = mould constant.

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