What does sprue mean?
A sprue is a crucial component in mold design for manufacturing processes like injection molding and casting. It serves as the primary channel through which molten material flows into the mold, ensuring that the material reaches all parts of the mold cavity. The term 'sprue' can also refer to the waste material that is removed from this channel after the casting has solidified. Proper design of the sprue is essential for achieving high-quality castings and molded parts, as it affects the flow rate, cooling rate, and overall integrity of the final product. Understanding the role of the sprue is important in various engineering and manufacturing disciplines.
nounA sprue is a vertical channel in a mold through which molten material flows to fill the mold. In injection molding and casting, it refers to the main channel that connects the pouring basin to the rest of the mold.
- A vertical channel in a mold for molten material
- The waste material that is removed from the sprue after solidification
"The engineer carefully designed the sprue to ensure smooth flow of molten plastic into the mold."
"The engineer carefully designed the sprue to ensure smooth flow of molten plastic into the mold."
"After the casting solidified, the sprue was cut off and recycled."
The plural form 'sprues' is used when referring to multiple channels or multiple sprues in a mold.
"The mold design included multiple sprues to facilitate simultaneous casting of several parts."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of sprue
The term 'sprue' originates from the Middle English word 'sprue', which is derived from the Old English word 'sprūt', meaning 'a sprout' or 'a shoot'. This etymology likely relates to the channel's function as a passage for material to flow through, similar to how a sprout grows from a plant.
Usage notes
In manufacturing and engineering contexts, 'sprue' often refers specifically to the channel in molds for plastics or metals. The term can also refer to the leftover material that is trimmed from the casting after it solidifies.