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- Riser_(casting) abstract "A riser, also known as a feeder, is a reservoir built into a metal casting mold to prevent cavities due to shrinkage. Most metals are less dense as a liquid than as a solid so castings shrink upon cooling, which can leave a void at the last point to solidify. Risers prevent this by providing molten metal to the casting as it solidifies, so that the cavity forms in the riser and not the casting. Risers are not effective on materials that have a large freezing range, because directional solidification is not possible. They are also not needed for casting processes that utilized pressure to fill the mold cavity. A feeder operated by a treadle is called an underfeeder.The activity of planning of how a casting will be gated and risered is called foundry methoding or foundry engineering.[citation needed]".
- Riser_(casting) thumbnail BronzeSprueRisersSideView.jpg?width=300.
- Riser_(casting) wikiPageExternalLink ?id=d_A2o4YXfUAC.
- Riser_(casting) wikiPageID "1817533".
- Riser_(casting) wikiPageRevisionID "588271839".
- Riser_(casting) hasPhotoCollection Riser_(casting).
- Riser_(casting) subject Category:Casting_(manufacturing).
- Riser_(casting) comment "A riser, also known as a feeder, is a reservoir built into a metal casting mold to prevent cavities due to shrinkage. Most metals are less dense as a liquid than as a solid so castings shrink upon cooling, which can leave a void at the last point to solidify. Risers prevent this by providing molten metal to the casting as it solidifies, so that the cavity forms in the riser and not the casting.".
- Riser_(casting) label "Materozza".
- Riser_(casting) label "Mazarota".
- Riser_(casting) label "Riser (casting)".
- Riser_(casting) label "Speiser".
- Riser_(casting) label "Изложница".
- Riser_(casting) sameAs Speiser.
- Riser_(casting) sameAs Mazarota.
- Riser_(casting) sameAs Materozza.
- Riser_(casting) sameAs m.05z9_j.
- Riser_(casting) sameAs Q1971904.
- Riser_(casting) sameAs Q1971904.
- Riser_(casting) wasDerivedFrom Riser_(casting)?oldid=588271839.
- Riser_(casting) depiction BronzeSprueRisersSideView.jpg.
- Riser_(casting) isPrimaryTopicOf Riser_(casting).