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Tag: thickness of the casting

How to Calculate and Solve for Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass | Design of Gating System

The image above represents pouring time for medium-sized and large casting up to 1000kg in mass.

To compute for pouring time for medium-sized and large casting up to 1000kg in mass, three essential parameters are needed and these parameters are Co-efficient used to Account for Wall Thickness (S), Mass of Casting with Gates and Risers (G) and Thickness of the Casting (δ).

The formula for calculating pouring time for medium-sized and large casting up to 1000kg in mass:

t = S(Gδ)1 / 3

Where:

t = Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass
S = Co-efficient used to Account for Wall Thickness
G = Mass of Casting with Gates and Risers
δ = Thickness of the Casting

Let’s solve an example;
Find the pouring time for medium-sized and large casting up to 1000kg in mass when the co-efficient used to account for wall thickness is 9, mass of casting with gates and risers is 12 and thickness of the casting is 21.

This implies that;

S = Co-efficient used to Account for Wall Thickness = 9
G = Mass of Casting with Gates and Risers = 12
δ = Thickness of the Casting = 21

t = S(Gδ)1 / 3
t = 9 x (12 x 21)1 / 3
t = 9 x (252)0.33
t = 9 x 6.31
t = 56.84

Therefore, the pouring time for medium-sized and large casting up to 1000kg in mass is 56.84 s.

Calculating the Co-efficient used to Account for Wall Thickness when the Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass, the Mass of Casting with Gates and Risers and the Thickness of the Casting is Given.

S = 3√(t3 / Gδ)

Where;

S = Co-efficient used to Account for Wall Thickness
t = Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass
G = Mass of Casting with Gates and Risers
δ = Thickness of the Casting

Let’s solve an example;
Find the co-efficient used to account for wall thickness when the pouring time for medium-sized and large casting up to 1000kg in mass is 30, mass of casting with gates and risers is 18 and the thickness of the casting is 20.

This implies that;

t = Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass = 30
G = Mass of Casting with Gates and Risers = 18
δ = Thickness of the Casting = 20

S = 3√(t3 / Gδ)
S = 3√(303 / 18 x 20)
S = 3√(27000 / 360)
S = 3√(75)
S = 4.21

Therefore, the co-efficient used to account for wall thickness is 4.21.

Continue reading How to Calculate and Solve for Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass | Design of Gating System

Posted on April 21, 2020Author Loveth IdokoCategories EngineeringTags co-efficient used to account for wall thickness, design of gating system, engineering, foundry technology, mass of casting with gates and risers, materials and metallurgical, pouring time for medium-sized and large casting up to 1000kg in mass, thickness of the castingLeave a comment on How to Calculate and Solve for Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass | Design of Gating System
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