A transfer mold is a type of rubber mold; the term derives from the method of moving the compound, which is forced or transferred by pressure from a cavity in the top of the mold through sprues into the lower section.
A transfer mold is a type of mold used for rubber compounds, named for the way the material is moved into the mold cavity. The uncured compound is placed in a cavity in the top of the mold and then forced, or transferred, by pressure through passages called sprues into the lower section, where the actual mold cavity shapes the part. Heat and pressure then cure the rubber into its final form.
By transferring the compound under pressure into the cavity, this method fills the mold consistently and is well suited to molding rubber parts and over-molded components. It is one of several molding techniques used to shape rubber in cable and component manufacturing.
In commercial and industrial cable manufacturing, molding methods like transfer molding shape rubber components such as molded plugs, strain reliefs, and over-molded terminations. Recognizing the term helps in understanding how rubber parts are formed.
Because transferring the compound under pressure into the cavity fills the mold consistently, the method is well suited to molding rubber parts and over-molded components, one of several molding techniques used to shape rubber in cable and component manufacturing.
At Windy City Wire, an understanding of manufacturing methods, including transfer molding, reflects a focus on the processes behind quality cable and assemblies. Recognizing how a transfer mold shapes rubber helps illustrate the considerations behind molded components in cable.