Merits and demerits of carbon di-oxide moulding


Question 1:

Write down a critical note on the dissimilar techniques accessible for eliminating dross throughout melting of Aluminium alloys.

Question 2:

Write down the ideal theoretical shape of the riser. Illustrate your answer in detail with the appropriate sketch.

Question 3:

What factors resolve riser adequacy? What factors determine riser economy?

Question 4:

Illustrate various welding procedures which can be employed for repair of castings.

Question 5:

Provide instances of the typical products of following processes: Precision casting, Die casting, Shell moulding.

Question 6:

Write down the merits and demerits of carbon di-oxide moulding.

Question 7:

What causes surface shrinkage at the internal angles in the castings? How it can be eradicated?

Question 8:

What do you understand by the term inter dendritic shrinkage and why does it take place?

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Other Engineering: Merits and demerits of carbon di-oxide moulding
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