Refractory Sleeve for Bottom Pouring Set Manufacturers

A sleeve is a refractory sleeve that is used to support the bottom of a bottom pouring set. It is typically made of a high-temperature material, such as fireclay or alumina, and is designed to withstand the high temperatures and corrosive environment of a foundry.

The bottom pouring set sleeve is placed in the bottom of the bottom pouring set before the molten metal is poured. It helps to distribute the molten metal evenly and prevents it from flowing out of the bottom of the set. The sleeve also helps to protect the bottom of the set from damage.

Refractory Sleeve for Bottom Pouring Set Suppliers

Material Preparation: Choose a suitable refractory material that can withstand the high temperatures and corrosive nature of molten metals. Common materials include alumina, zirconia, and other refractory ceramics. The material is then prepared by mixing it with binders, additives, and water to create a workable mixture.

Molding: The prepared refractory material is formed into the shape of the sleeve using molding techniques. There are different molding methods, including slip casting, pressing, and extrusion, depending on the desired shape and design of the sleeve.

Drying: The molded sleeves are dried in a controlled environment to remove excess moisture and binders. Proper drying is important to prevent cracks and defects during firing.

Firing (Sintering): The dried sleeves are fired in a high-temperature kiln. During this process, the refractory material undergoes sintering, where particles fuse together and form a solid structure. The firing process ensures that the sleeve becomes dense and able to withstand the extreme conditions of casting.