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.**

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

G = ^{t3} / _{S3δ}

Where;

G = Mass of Casting with Gates and Risers

t = Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass

S = Co-efficient used to Account for Wall Thickness

δ = Thickness of the Casting

Let’s solve an example;

Find the mass of casting with gates and risers when the pouring time for medium-sized and large casting up to 1000kg in mass is 16, the co-efficient used to account for wall thickness is 12 and the thickness of the casting is 8.

This implies that;

t = Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass = 16

S = Co-efficient used to Account for Wall Thickness = 12

δ = Thickness of the Casting = 8

G = ^{t3} / _{S3δ}

G = ^{163} / _{123 x 8}

G = ^{4096} / _{1728 x 8}

G = ^{4096} / _{13824}

G = 0.296

Therefore, the **mass of casting with gates and risers **is **0.296.**

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

δ = ^{t3} / _{S3 x G}

Where;

δ = Thickness of the Casting

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

Let’s solve an example;

Find the thickness of the casting when the pouring time for medium-sized and large casting up to 1000kg in mass is 10, the co-efficient used to account for wall thickness is 5 and the mass of casting with gates and risers is 14.

This implies that;

t = Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass = 10

S = Co-efficient used to Account for Wall Thickness = 5

G = Mass of Casting with Gates and Risers = 14

δ = ^{t3} / _{S3 x G}

δ = ^{103} / _{53 x 14}

δ = ^{1000} / _{125 x 14}

δ = ^{1000} / _{1750}

δ = 0.57

Therefore, the **thickness of the casting **is **0.57.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the pouring time for medium-sized and large casting up to 1000kg in mass.

To get the answer and workings of the pouring time for medium-sized and large casting up to 1000kg in mass using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 1,500 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Materials & Metallurgical**** **under **Engineering****.**

Now, Click on **Foundry Technology**** u**nder **Material & Metallurgical**

Now, Click on **Design of Gating System **under **Foundry Technology**

Now, Click on **Pouring Time for Medium-Sized and Large Casting up to 1000kg in Mass**** **under **Design of Gating System**

The screenshot below displays the page or activity to enter your values, to get the answer for the pouring time for medium-sized and large casting up to 1000kg in mass according to the respective parameters which are the **Co-efficient used to Account for Wall Thickness (S), Mass of Casting with Gates and Risers (G)** and **Thickness of the Casting (δ).**

Now, enter the values appropriately and accordingly for the parameters as required by the **Co-efficient used to Account for Wall Thickness (S)** is **9**,** Mass of Casting with Gates and Risers (G) **is **12** and **Thickness of the Casting (δ)** is **21**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the pouring time for medium-sized and large casting up to 1000kg in mass and presents the formula, workings and steps too.