Positive temperature gradient which gradually increases towards the feed head, avoid shrinkage defects.

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Casting Practice Test: Pouring - Gating Design, Melting Furnaces, Melting and Casting Quality — practice the complete quiz, review flashcards, or try a random question.

Pouring - Gating Design, Melting Furnaces, Melting and Casting Quality topics include: Aspiration and friction effects, velocity distribution, melting furnaces, metals gases, casting cleaning and sand castings product design. A gating system is a series of passages that allow molten metal to flow into a mold cavity. A good gating system should ensure that the molten metal is distributed properly without excessive temperature loss, turbulence, gas entrapment, and slags.  The main components of a gating system are: Pouring basin, Sprue, Well, Runner, Ingate.  A poorly designed gating system... Show more

Positive temperature gradient which gradually increases towards the feed head, avoid shrinkage defects.