Properties of moulding sand PPT.pdf
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Jan 27, 2023
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About This Presentation
Properties of moulding/molding sand PPT explains different types of properties required for making good sand casting.
Properties such as permeability, mold hardness, hot strength, dry strength of mold, strength of mold, green strength properties of molding sand and list goes on.
Slide Content
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Properties of
moulding
sand.
PPT
Properties of
moulding
sand.
PPT
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1.Permeability of moulding sand.
2.Cohesiveness or strength.
3.Adhesiveness.
4.Green strength.
5.Dry strength.
6.Hot strength.
1.Permeability of moulding sand.
2.Cohesiveness or strength.
3.Adhesiveness.
4.Green strength.
5.Dry strength.
6.Hot strength.
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7.Refractoriness.
8.Plasticity.
9.Flowability.
10.Compatibility.
11.Friability.
12.Collapsibility.
13.Mould hardness.
14.Co-efficient of expansion.
7.Refractoriness.
8.Plasticity.
9.Flowability.
10.Compatibility.
11.Friability.
12.Collapsibility.
13.Mould hardness.
14.Co-efficient of expansion.
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Permeability can
be defined as the
property of
moulding sand to
allow and escape
hot gasses from
the mould.
Permeability can
be defined as the
property of
moulding sand to
allow and escape
hot gasses from
the mould.
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Cohesiveness can
be defined as the
ability of sand to
hold itself together
during
making mould.
Cohesiveness can
be defined as the
ability of sand to
hold itself together
during
making mould.
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Hot strength can be
defined as the
ability of mould to
bear the heat of
molten metal when
the metal starts
heating the mould.
Hot strength can be
defined as the
ability of mould to
bear the heat of
molten metal when
the metal starts
heating the mould.
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Green strength can be
defined as the ability
of sand to retain its
shape and strength
when moisture is
present in the mould
during mould making
process.
Green strength can be
defined as the ability
of sand to retain its
shape and strength
when moisture is
present in the mould
during mould making
process.
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Dry strength can be
defined as the
property of sand to
withstand strength
after moisture has
been evaporated from
the mould.
Dry strength can be
defined as the
property of sand to
withstand strength
after moisture has
been evaporated from
the mould.
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Refractoriness is
ability of moulding
sand withstand the
high temperature
without fusing to the
molten metal is
called refractoriness.
Refractoriness is
ability of moulding
sand withstand the
high temperature
without fusing to the
molten metal is
called refractoriness.
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Compatibility can be
defined change in the
height of the loose
mass of sand during
the controlled
compacting.
Compatibility can be
defined change in the
height of the loose
mass of sand during
the controlled
compacting.
Go to
mechgrace.com
To read full article on
Properties of
moulding sand.
mechgrace.com
To read full article on
Properties of
moulding sand.
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