ladle


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ladle

a large bucket-shaped container for transferring molten metal

Ladle

 

(in Russian, kovsh), in metallurgy, a steel or iron vessel designed for the brief holding, transporting, and pouring of molten metal, matte, or slag.

In ferrous metallurgy, ladles are used for transporting and pouring iron and steel. The welded or riveted casing of such ladles is lined on the inside with refractory brick. The ladles are moved using overhead cranes or on railway cars. A steel casting ladle has the shape of a truncated cone that widens toward the top. The steel is poured out through one or two nozzles located in the bottom of the ladle. The nozzle aperture is closed or opened by a plug that is operated hydraulically or by hand. The capacity of a ladle may reach 480 tons. Molten cast iron transfer ladles are usually barrel-shaped, and the iron is poured off through the casting lip when the ladle is tilted. The capacity of a ladle is 100–140 tons. A ladle for pouring iron into a converter is shaped like a steel casting ladle but has a solid bottom and is equipped with a casting lip. The capacity of the ladle is up to 360 tons.

In nonferrous metallurgy, ladles cast from steel or iron are slagged with converter slag for protection against the corrosive action of the hot metal or matte, but they are sometimes lined with refractory brick. The ladle is transported by an overhead crane. The ladles may hold up to 15 tons of matte. For removing molten waste slag from the shop, large ladles (up to 50 tons) are sometimes used; they are sinter ladles carried on railway platform cars. In the aluminum industry, vacuum ladles are used for removing the metal from electrolysis baths.

Manual, small trolley, and crane casting ladles are used in foundry work. The capacity of the manual ladles is 15–100 kg. The small trolley ladles with a capacity of up to 120 kg are usually suspended on a monorail and can be moved by one man. The crane stopper ladles holding up to 100 tons of liquid metal are used for steel casting. In pouring the metal from the ladle through the bottom openings (nozzles), slag does not enter the casting mold. Crane tilting ladles with a capacity of up to 100 tons are used for casting iron. Refractory partitions are used to retain the slag in such ladles.

ladle

[′lād·əl]
(design engineering)
A deep-bowled spoon with a long handle for dipping up, transporting, and pouring liquids.
(metallurgy)
A receptacle for transporting and pouring molten metal.
References in periodicals archive ?
The men jumped quickly to their work, following the ladle as it traversed the row of moulds, checking a run-out from a faulty joint, throwing shovelfuls of dry sand over the open necks as the moulds filled.
It could implement not only prevention of alarm situation, but plan the usage of current ladle, according to collected data about its specifications.
Likewise, add the stock very slowly-only ladle by ladle, and wait until the stock is absorbed before adding the next ladle.
The heat transfer in a steelmaking ladle was studied.
India, March 23 -- Land Instruments International has launched a new system that monitors temperature change over the entire surface of molten metal ladles.
A special feature of arc heating is local subelectrode superheating of the melt, resulting in the burn-out of alloying elements and also the high level of thermal load on the arc and on the upper belt of the ladle, causing premature wear of the lining.
But as the crane disengaged the hooks from the ladle, Mr Penhalagan was struck.
For a reasonable price you get five utensils (a turner, solid spoon, slotted spoon, ladle and masher), a trendy steel caddy to store them, a wooden knife block with steel trim and five knives.
In 2000, the company was not hit hard by the "I love you" virus, but reading about how the occurrence had affected other organizations made Ladle realize that if it had happened once, it could happen again.
Furthermore, there was not free movement of the ladle crane and caster maintenance crane, further slowing down the process.
They were in really good condition and when we investigated further we found out that the Ladle public house actually used to be the girl guides' meeting point.