In order to ram the sand soften on the
pattern face and harder at the back of the mould, which of the following types
of moulding machines is used?
Jolt
Sand slinger
Squeezing
Stripper plate
Squeezing
In order to ram the sand soften on the
pattern face and harder at the back of the mould, squeeze ramming is used.
Hence, the correct option is (C).
&Key Points:-
Squeeze machine :
●In squeeze machine, the mould box with pattern and sand in it is placed on a fixed table as shown in figure.
●A flat plate or a rubber diaphragm is
brought in contact with the upper surface of the loose sand and pressure is applied
by a pneumatically operated piston.
●The squeezing action of the plate causes the sand particles to get packed tightly above and around the pattern
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