What is a ladle metallurgical station?
A ladle metallurgical station consists primarily of an electric ladle arc furnace and an alloy additive system. The ladle furnace is generally a furnace roof top with electrodes that look very similar to an EAF. Argon bubbling is used to stir the metal in the ladle. Contact Casey Equipment for a quote on used ladle metallurgy equipment for sale.
Why do you need a ladle stirring station?
In most continuous casting operations, it is necessary to maintain minimal fluctuation in steel temperature, and this requires the use of a ladle stirring station to establish a uniform temperature and chemical composition throughout the ladle.
What is the history of the ladle treatment?
The treatment of steel in the ladle started around 45 years ago when the first ladle-to-ladle and ladle-to-ingot mold vacuum degassing processes for hydrogen removal appeared on the scene. In the late 1950s more efficient vacuum degassers such as the Dortmund Hoerder (DH) and Ruhrstahl-Heraeus (RH) processes became popular.
What is a ladle furnace?
A ladle furnace is used to relieve the primary process of steel making of many of the secondary refining operations. The main functions of a ladle furnace are as follows. Reheating of liquid steel by electric power which is conducted by graphite electrodes.
What is ladle treatment?
Treatment ladle: a ladle used for a process to take place within the ladle to change some aspect of the molten metal. A typical example being to convert cast iron to ductile iron by the addition of various elements into the ladle.
What does a ladle furnace do?
Ladle Refining Furnaces (LRF) are used to raise the temperature and adjust the chemical composition of molten metal. Without LRFs, higher tap temperatures are normally required from steel making furnaces due to heat losses during refining with conventional ladles.
What is ladle in casting process?
Casting ladles, also known as hand pouring ladles, and larger bucket-style ladles are used to manually transfer or extract small to large amounts of molten metal, either in a laboratory or aluminium foundry environment.
What are ladles made from?
stainless steel alloysIn modern times ladles are usually made of the same stainless steel alloys as other kitchen utensils; however, they can be made of aluminium, silver, plastics, melamine resin, wood, bamboo or other materials.
What do you mean by ladle?
Definition of ladle (Entry 1 of 2) 1 : a deep-bowled long-handled spoon used especially for dipping up and conveying liquids. 2 : something resembling a ladle in form or function. ladle. verb.
What is the meaning of ladle analysis?
The results of the chemical analysis of a test sample taken during the pouring of a melt. Also called heat analysis.
What are ladles and crucible?
Print. Transfer crucibles are refractory-lined vessels used to transport molten aluminium. The refractory lining material depends upon the application.
How many types of ladle are there?
The types are: 1. Hand Ladle 2. Shank or Bull Ladle 3. Tea Pot Ladle 4.
What is the category of ladle?
Ladles can be classified for specific purposes such as a Gravy Ladle or a Skimming Ladle and each is designed differently in order to accomplish the intended task. Ladles used for serving are made with a deeper bowl in the spoon and may be somewhat short handled.
Why is it called ladle?
Some soup ladle bowls have volume measurement markings to determine the amount of liquid in the bowl. The term 'ladle' is derived from the word 'hladan', meaning 'to load' in Old English.
What are the different types of ladles and their uses?
Types of ladlesGravy Ladles. Gravy ladles are small ladles for use at the table meant for serving gravy. ... Soup Ladles. Soup ladles are ladles with a large, deep bowl on them designed to scoop soup out of a pot or a dish and serve it into a bowl.Wok Ladles.
When was the ladles invented?
Soup ladles were most likely invented in the 1800s, and an early style utensil with a similar purpose, known as a 'cup holder', was patented in 1876, that was invented by Joseph Scherer from Buffalo, New York in the United States, and was a wire frame with a wooden handle that was designed to hold a teacup or similar ...
Controlling temperature
Deoxidation reactions carried out in the ladle are exothermic and thus raise the temperature of the liquid steel, but the steel also loses heat by radiation from the top surface, by heating of the ladle lining, and by heat flux through the lining and shell.
Slag removal
Keeping furnace slags on the molten steel too long can result in a reversion of elements such as phosphorus back into the steel. To avoid this, slag can be removed at slag-skimming stations, where the ladle is tilted forward and a rake scrapes the slag into a slag pot parked beneath the ladle.
Stirring and injecting
In most continuous casting operations, it is necessary to maintain minimal fluctuation in steel temperature, and this requires the use of a ladle stirring station to establish a uniform temperature and chemical composition throughout the ladle.
Desulfurizing
Many powder-injection stations are used for desulfurization. One effective desulfurizer is a calcium-silicon alloy containing 30 percent calcium.
What is a ladle metallurgy station?
A ladle metallurgy station (LMS) or ladle metallurgy furnace (LMF), as it is also called, is used to refine molten steel into specialty grades while remaining in the ladle.
What is a ladle furnace?
The ladle furnace is generally a furnace roof top with electrodes that look very similar to an EAF. Argon bubbling is used to stir the metal in the ladle. Contact Casey Equipment for a quote on used ladle metallurgy equipment for sale.
