A tundish holds molten metal before it’s poured into a mold, and comes in various sizes. It’s made of durable materials and may have a nozzle to control the flow of metal. The composition of the metal can change while in the tundish, and skulls must be removed to avoid reactions. Safety protocols are important when working with molten metal.
A tundish is a piece of equipment that is used in the smelting of metals. The tundish holds the molten metal just before it is poured into the mold, making it one of the last steps in the casting process. Pots come in a variety of sizes and styles ranging from small versions used for casting in artists’ home studios to massive containers used in the continuous casting process. The tundish technology has been around for a long time, and a number of companies manufacture these devices along with accessories and accessories.
The tundish is made of extremely durable materials that are able to cope with the high heat of molten metals. The equipment is usually lined with a low conductivity material and may be fitted with a nozzle to control the flow of molten metal. In other designs, the jet is controlled by hand or machine. Casting control is important to avoid casting a part with defects such as cracks and bubbles and to meet the demands of different metals.
While in the tundish, the composition of the molten metal can change as it interacts with the air. This change in composition must be tightly controlled to achieve the desired effect in the finished product. At all stages of the smelting process, the metal must be monitored as it moves through the different stages and interacts with its surroundings. Small variations in the process can sometimes lead to very different end products.
Over time, the inside of the tundish can become covered in layers of metal. These layers must be removed to free up space in the tundish and avoid reactions between different types of metals. These remains, known as skulls, can be removed with cutting or scraping devices. Some facilities recycle skulls to make various metal products, proving that one person’s waste materials can be another person’s treasure.
In automated casting plants, people may not interact with tundishes very often unless a problem develops. For those who throw by hand, however, contact with the tundish will be necessary. The equipment must be handled with care, both to protect the integrity of the casting and to protect the health of the people working in the area. Getting splashed with molten metal can be extremely painful and potentially very dangerous, and metalworkers are careful to wear proper protection and follow safety protocols when melting or working hot metal.
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