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What is continuous casting in steel making?

Continuous casting. About 55 percent of the world’s liquid steel production is solidified in continuous casting processes, the most widely used of which feeds liquid steel continuously into a short, water-cooled vertical copper mold and, at the same time, continuously withdraws the frozen shell, including the liquid steel it contains.

What is the use of continuous casting?

The continuous casting process is a very effective method to manufacture semi-finished products such as bars, profiles, slabs, strips and tubes made from steel and non-ferrous metals such as copper, aluminium and their alloys.

What is the principle of continuous casting?

Continuous casting (CC) has been widely accepted as the most important production process in the steel industry. In the casting process, molten steel from the ladle flows through the tundish into a mould. Within the mould, the molten steel freezes against the water-cooled copper mould walls forming a solid shell.

How long is continuous casting?

Casting of one ladle takes 45 to 90 minutes, depending on heat size, steel grade, caster layout, and casting conditions. Turning the caster around—that is, preparing it for the next cast—is usually accomplished in a half hour, but it takes longer when the mold is changed for casting a different section.

What is CCM in steel plant?

Steel Billet Continuous Casting Machine is used for continuously casting the square billet of multiple cross section and length. Operated by automatic control system.

image-What is continuous casting in steel making?
image-What is continuous casting in steel making?
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What is continuous casting refractory?

Continuous Casting Refractory (CCR)

In the Continuous Casting of Steels, Tundish is a Buffer Refractory Lined Vessel, which is located between the ladle and the CC mould. The Tundish serves the purpose of a reservoir and a distribution vessel. Over the years, innovative changes have taken place in CC Tundish.

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What are the products of continuous casting process?

Overview of Continuous Casting

The most common continuous casting shapes produced are tubes and solids. However, other continuous casting shapes such as square, rectangular, hexagonal, and many other irregular shapes can also be produced to match a desired finished part profile.
Nov 30, 2020

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Can steel casted?

Steel casting is a specialized form of casting involving various types of steel. Steel castings are used when cast irons cannot deliver enough strength or shock resistance. ... Steel castings are categorized into two general groups: carbon steels and alloy steels.

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Who invented continuous casting?

Continuous casting was invented during the mid-19th century. In 1857, English inventor Sir Henry Bessemer filed a patent for the world's first casting process involving the use of multiple rollers. Here are the basic steps of continuous casting: Metal is heated until it turns from a solid to a liquid, molten state.Jun 4, 2019

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What is negative strip in continuous casting?

Negative strip is a term used to describe the key motion of the mold oscillator on a continuous caster. Negative strip is either the percentage amount or time during which the mean mold speed (vm) is higher than the casting speed (vc) during the downward movement of the mold.

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What is a steel mill caster?

The caster transforms the liquid steel in the ladle into solid 55mm or 65mm thick slabs, ready for rolling. ... It also traps slag impurities, that could cause quality problems if cast with the steel.

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How many types of continuous casting machines are there?

There are two types of mould design namely (i) tubular mould, and (ii) plate mould. Tubular moulds conventionally consist of a one piece copper lining that usually has relatively thin walls and is restricted to smaller billet and bloom casters.Jun 13, 2015

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What is meniscus level in continuous casting?

Control of height of liquid steel in the mould is crucial for the success of the continuous casting machine. This is done by controlling the steel level (meniscus level). The solidification begins from the meniscus of steel level in the mould. Mould level sensors are used to control the meniscus level in the mould.May 21, 2014

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How does the continuous casting process work?

  • In the casting process, molten steel from the ladle flows through the tundish into a mould. Within the mould, the molten steel freezes against the water-cooled copper mould walls forming a solid shell. Argon gas is injected into the molten steel that enters into the continuous casting mould through the submerged entry nozzle (SEN).

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How important is scheduling in steelmaking-Continuous casting?

  • Scheduling of steelmaking-continuous casting (SCC) processes is of major importance in iron and steel operations since the SCC process is often a bottleneck in iron and steel production [ 1 ].

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What is the process of casting steel?

  • The metal is first liquefied and poured into a tundish, which is a container that leads to the mold that will cast the steel. The tundish is placed about 80-90 feet above the ground level and the whole process of casting sues gravity to operate.

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What are the advantages of continuity in casting?

  • The continuity of the casting helps to lower the cost of the casted steel. Further, it helps in the standardized production of steel cast. Further, the carefully controlled process also reduces errors leading to better quality steel casts. They increase the productivity and produce better yields.

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What is continuous casting process?What is continuous casting process?

Continuous casting. About 55 percent of the world’s liquid steel production is solidified in continuous casting processes, the most widely used of which feeds liquid steel continuously into a short, water-cooled vertical copper mold and, at the same time, continuously withdraws the frozen shell, including the liquid steel it contains.

Related

How important is scheduling in steelmaking-Continuous casting?How important is scheduling in steelmaking-Continuous casting?

Scheduling of steelmaking-continuous casting (SCC) processes is of major importance in iron and steel operations since the SCC process is often a bottleneck in iron and steel production [ 1 ].

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What is a billet continuous casting machine?What is a billet continuous casting machine?

The billet continuous casting machine can be designed as curved and vertical-bend according to the users requirements. It can cast carbon steel, alloy steel and special steel, such as stainless steel.

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What kind of steel can be cast with a continuous caster?What kind of steel can be cast with a continuous caster?

It can cast carbon steel, alloy steel and special steel, such as stainless steel. The steel continuous caster mainly consists of middle tank, crystallizer, vibrating mechanism, spindle rod, secondary cooling channel,a pull straightening machine and cutting machine.COOLDO Can custom-made CCM for different requirment in the metallurgy.

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