Continuous Casting and Safety Practices

Continuous casting is primarily used to produce:

• Complex shaped castings

• Small precision parts

• Long metal sections

• Ceramic products

Which of the following is a major advantage of continuous casting over traditional casting methods?

• More porosity

• Lower production rate

• Less wastage

• Higher machining time

In continuous casting, the molten metal is poured:

• Into a sand mold

• Into a permanent mold

• Into a rotating drum

• Continuously into a water-cooled mold

One of the critical components in continuous casting equipment is:

• Furnace lining

• Ladle crane

• Oscillating mold

• Blow torch

Continuous casting is mostly used in industries producing:

• Jewelry

• Steel and aluminum products

• Engine blocks

• Hand tools

A cold shut defect in casting is caused by:

• Excessive mold temperature

• Poor fusion of two metal fronts

• High pouring rate

• Use of core prints

Which of the following is a remedy for shrinkage cavities?

• Increase gating size

• Use chills or risers

• Reduce mold hardness

• Increase pouring temperature

Blowholes in castings are formed due to:

• Low melting temperature

• Excess gas entrapment

• Slow cooling rate

• Inadequate finishing

Inclusion defects in castings are mainly due to:

• Slow pouring

• Presence of foreign material

• Poor core design

• High humidity in molding sand

Hot tears in castings usually occur because of:

• Overheating of mold

• Sudden cooling

• Restrained contraction during solidification

• Low metal fluidity