Glossary and Terms of the Foundry Industry

SFSA: Glossary of Terms - L

Use the toolbar icon, " Find " to search for a specific term.

Ladle: Metal receptacle frequently lined with refractories used for transporting and pouring molten metal. Types include hand bull, crane, bottom-pour, holding, teapot, shank, lip-pour.
Ladle, Bottom-Pour: Ladle from which metal flows through a nozzle in the bottom.
Ladle, Bull: A large ladle for caring molten metal. Frequently used to designate a transfer ladle.
Ladle, Lip-Pour: Ladle in which the metal is poured over a lip.
Ladle, Teapot: A ladle in which, by means of an external spout, metal is removed from the bottom rather than the top of the ladle.
Lance, Oxygen: A device, consisting of steel pipe, tubing, oxygen source, and controls which uses the heat of burning steel pipe for melting. Frequently used to open frozen tape or slag holes.
Lateral Expansion: A measured property used in Charpy Impact Testing. Refers to the increase width of the specimen after fracture.
LEFM (Linear Elastic Fracture Mechanics): A method of fracture analysis that can determine the stress required to induce fracture instability in a structure with a crack like flaw of know size and shape.
Lining: Inside refractory layer of firebrick, clay, sand, or other material in a furnace or ladle.
Lining, Monolithic: A lining made without the customary layers and joints of a brick wall. Usually made by tamping or casting refractory material into place, drying, and then burning in place on the job.
Liquid Penetrant Testing: A nondestructive testing method suitable for evaluating the surface integrity of non-magnetic and ferro-magnetic parts.
Logo: The sign, mark, or distinguishing letter designating the manufacturer.
Loose Molding: The molding process utilizing unmounted patterns. Gates and runners are usually cut by hand.
Loose Piece: 1) Core box: part of the core box which remains embedded in the core and is removed after lifting off the core box. 2) Pattern: laterally projecting part of a pattern so attached that it remains in the mold until the body of the pattern is drawn. Back-draft is avoided by this means. 3) Permanent mold: part which remains on the casting and is removed after the casting is ejected from the mold.
Lost Foam Process: Casting process in which a foam pattern is removed fro the cavity by the molten metal being poured.
Low Stress Scratching Abrasion: Abrasion involving near zero impingement angle for the striking particle, also parallel flow erosion.

]
[ Home | Contents | Help ]