Question

The Function of gate is to

• A. Feed the casting at a rate consistent with the rate of solidification
• B. Act as reservoir of molten metal
• C. Feed molten metal from pouring basin to gate
• D. It will not feed the molten metal

Hint:

Gating System: Pouring Basin $\rightarrow$ Sprue $\rightarrow$ Runner $\rightarrow$ Gate $\rightarrow$ Cavity. The Gate is the "doorway."

Answer 1

The Correct Option is A

Step 1: Concept The gating system is the series of channels through which molten metal travels from the exterior to the mould cavity.

Step 2: Meaning The "gate" is the final entry point into the actual mould cavity.

Step 3: Analysis The gate must control the velocity and volume of the metal entering the cavity to ensure smooth filling without turbulence.

Step 4: Conclusion Its function is to feed the casting at a controlled rate appropriate for the solidification process. Final Answer: (A)