Cont Casting

7/27/2019 Cont Casting

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Name :- Rakesh Kumar Poddar

Roll No:- 3203809036


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It is the process of solidifying themolten hot metal into desired shape

continuously in a mould

Casting is carried till all the molten metal

is casted or transformed into desired

shape.


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Ladle

Tundish

Mould

Different Section& Zones

Gega Cutter

Semi Product


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Three types of Caster are used in theSMS-II (JSPL).

1.Slab Caster

2.Combi Caster

3.Billet Caster


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Slab caster is used to cast the molten steel into semi-product i.e Slab which is further taken in plate forproduction of sheet, coil etc.


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No. of strands : 01

Supplier : SMS DEMAG

Radius : 12000 mm

Machine speed Speed range : 0 to 2 m/min

Mould length : 700 mm

Dummy bar system : Chain type dummy bar (Bottom feeding)

Type of mould : Curved mould with Cu plates.

Cut length : 3.5 to 9 meters.

Features of Slab Caster


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The products of slab caster is input for the Plate mills.Specification of Slab:-

Width range:- 1300 2600

Thickness :- 215, 250, 280Length:- According to requirement.

a. Slab b. Sheet

Products of Slab Caster


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Combi Caster means Combination caster.

Here different types of shapes can becasted like Beam blank, Bloom, Round.


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No. of strands : 04 Supplier : VAI Radius : 12000 mm

Machine speedSpeed range : 0 to 2.5 m/min Mould length : 800 mm Dummy bar system : Chain type dummy bar

(Bottom feeding)

Type of mould : Curved mould with Cu platesfor beam blank and Blooms,Cu tube for rounds.

Cut length : 4.5 to 12 mtrs

Features of Combi Caster


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Products of Combi CasterBeam Blank:- size specification

i) 480 X 420 X 120ii) 380 X 220 X 90

Bloom :- size specificationi) 250 X 250 mm

ii) 285 X 390 mm

Round:- size specification305 mm, 280 mm, 255mm dia


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This type of Caster is used to Cast smallersize bloom and rounds.

Product of this caster is used for theproduction of wire rod, angle, tube and otherstructural beams.


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Features of Billet Caster No. of strands : 06 Supplier : CONCAST Radius : 9000 mm Machine speed

Speed range : 0 to 5 m/min Mould length

Rounds : 800 mmSquares : 1000 mm

Dummy bar system : Rigid type dummy

bar (Bottom feeding) Type of mould : Curved tublar Cumould

Cut length : 9 to 12 mtrs


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Products of Billet Caster

Rounds :- size specification142 mm, 150 mm,162 mm,200 mm, 220 mm dia

Billets :- size specification130 x 130 mm, 150 x 150 mm

165 x 165 mm , 200 x 200 mm


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Important parts of Caster

It is the major unit of the caster and it consist of a

number of important parts that collectively help in the

transfer of molten steel into the mould unit.

Slab Caster has Single Strand

Combi Caster has Four Strand

Billet Caster has Six Strand

It has refractory lining to withstand the

high temperature and ferro-static pressure.


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6 strand Tundish for

Billet Caster

4 strand Tundish for

Combi Caster

Before pouring the hot metal in the tundish, it is Pre-

heated with the help of Burner.


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Moulds are used to provide particular shape and size.

Mould are made up of Copper.

Mould are slightly curved shape.

Copper is used for mould as:

It has high thermal conductivity.

It is non-ferrous (anti adhesive)Easy machinability


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Mould

for slab

With the help of SEN the molten metal is

transferred in the mould.

Mould is surrounded by water jacket.

Solidification of molten metal starts in the

mould.

For Beam Blank

ForBloom


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It is used to transfer the molten metal from tundish

to Mould.

The rate of discharge from tundish is maintained bystopper rod.

SEN is made up of refractory material and it is

covered by glass wool.

It is preheated to resist the thermal shock.


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SEN

Tundish

Mould


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Hydraulic mould oscillator is used :

To avoid sticking of hot metal with mould

To prevent segregation

It is used over the upper surface of mould :

As it acts as lubrication between mould wall

and molten metal.

To prevent heat loss.


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Gega cutter is the machine installed ,mainly to

cut the product that is produced, from the caster.

Oxyacetylene flame is used for cutting purpose

The length and breadth, of the size to be cut is

prefixed.


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Documents

Cont Casting