Amazing Process Of Making High Quality Bronze Bowls. Korean metal foundry

Summary

This video showcases the century-long tradition of Geochang Yugi, highlighting the intricate process of bronze casting. Viewers witness the transformation of molten iron, alloyed with 78% copper and 22% tin, into beautifully crafted organic bowls. The use of burlap patterns, charcoal powder for purity, and precise temperature control are emphasized. Key techniques like quenching, polishing, and multiple layers of lacquer are demonstrated, culminating in a stunning golden finish. The video combines craftsmanship with artistry, inviting viewers to appreciate the skill and dedication behind each piece.

Takeaways

• 🔥 Geochang Yugi has a rich history of 100 years in the business.
• ⚗️ The process begins by placing a crucible to boil molten iron.
• 🔗 An alloy of bronze is created using 78% copper and 22% tin.
• 🌿 A mold made from burlap is used, differing from standard organic bowls.
• 🧱 Charcoal powder is applied to prevent contamination and aid in mold separation.
• 🏗️ The mold is filled thoroughly with fine-grained molding sand.
• 🌡️ Molten iron is poured at around 1200 degrees Celsius, requiring significant heat.
• ⚠️ It's crucial to pour all molten iron at once, as it cools rapidly.
• 🛠️ Heat treatment is necessary, as the product can be easily broken without it.
• ✨ The finishing process includes cutting rough surfaces and polishing for a smooth appearance.

Q & A

What is the history of Geochang Yugi?

Geochang Yugi has been in business for 100 years.

What materials are used to create the alloyed bronze?

The alloyed bronze consists of 78% copper and 22% tin.

What is the significance of using charcoal powder in the molding process?

Charcoal powder is applied to prevent the mixing of foreign substances and to facilitate the separation of the mold.

What temperature is required to melt the iron?

The molten iron needs to be heated to about 1200 degrees Celsius.

Why is it recommended to pour the molten iron all at once?

It is recommended to pour the molten iron all at once because it cools quickly.

What is the purpose of quenching in the metalworking process?

Quenching is essential because the metal is easily broken without heat treatment.

How many times is the painting and drying process repeated?

The painting and drying process is repeated about 5 times.

What is the function of the burlap pattern in the organic bowl mold?

The burlap pattern is a unique feature that differentiates it from general organic bowls.

How is the surface of the metal smoothed after casting?

The surface is polished with a loofah to make it smoother.

What is the role of arm strength in the metalworking process?

Arm strength control is very important during the process to ensure proper handling of materials.