Encast

Encast is a term used in the context of casting, particularly in metal casting and some forms of plastic molding. It refers to the process of pouring molten material into a mold cavity that has been designed to create a specific shape. The term "encast" emphasizes the act of the molten material filling, or becoming "cast within," the mold. It is closely related to the more general term "casting."

The encast process begins with the creation of a mold, which can be made from various materials such as sand, metal, ceramic, or even silicone. This mold contains a cavity shaped like the desired final object. The material to be cast, such as molten metal like aluminum, iron, or steel, or a thermosetting plastic resin, is heated to a liquid state. Once the material reaches the appropriate temperature and consistency, it is carefully poured or injected into the mold cavity.

As the molten material fills the mold, it takes on the precise form of the cavity. The mold is then allowed to cool, causing the cast material to solidify. Once solidified, the mold is opened, and the newly formed object, the casting, is removed. The term encast highlights the transformation of the liquid material into a solid form by being contained within the mold. This process is fundamental to manufacturing a wide array of products, from engine blocks and intricate sculptures to jewelry and industrial components. The quality of the final encast product depends on factors such as the mold material, the casting temperature, the cooling rate, and the method of pouring or injection.