Tundish Stopper

Short Description:

Tundish stopper is a refractory rod that is installed in the steel bucket to control the opening and closing of the nozzle and the flow of molten steel by lifting displacement, also known as pottery stopper. It is composed of rod core, sleeve brick and plug brick. The rod core is usually made of plain carbon steel round steel with a diameter of 30-60mm. The upper end is connected with the cross arm of the lifting mechanism by bolts, the lower end is connected with the plug brick by threads or pins, and the middle sleeve brick.Tundish stopper must be carefully built and used after baking and drying for more than 48 hours to avoid breakout accidents caused by refractory explosions.

The integral stopper rod is installed in the tundish when in use. The flow rate of molten steel entering the mold can be adjusted by controlling the position of the stopper rod head to the tundish nozzle, and argon can also be blown to the tundish through the argon blowing hole to prevent the nozzle from being blocked.


Product Detail

Product Tags

Description

Tundish stopper is a refractory rod that is installed in the steel bucket to control the opening and closing of the nozzle and the flow of molten steel by lifting displacement, also known as pottery stopper. It is composed of rod core, sleeve brick and plug brick. The rod core is usually made of plain carbon steel round steel with a diameter of 30-60mm. The upper end is connected with the cross arm of the lifting mechanism by bolts, the lower end is connected with the plug brick by threads or pins, and the middle sleeve brick.Tundish stopper must be carefully built and used after baking and drying for more than 48 hours to avoid breakout accidents caused by refractory explosions.

The integral stopper rod is installed in the tundish when in use. The flow rate of molten steel entering the mold can be adjusted by controlling the position of the stopper rod head to the tundish nozzle, and argon can also be blown to the tundish through the argon blowing hole to prevent the nozzle from being blocked.

Features

Good erosion resistance / Corrosion resistance / Stable flow control during casting / Close tightly after casting

Application

Ladle, refined ladle, electric furnace refined ladle, tundish

Physical And Chemical Indicators

Brand / Properties

Tundish Stopper

Body

Slag Line

Head

Chemical Composition (%) 

Al2O3

53.28

--

86.61

71.43

15.1

Fe2O3

0.91

--

0.43

0.91

--

SiO2

14.48

--

0.77

10.65

8.95

TiO2

1.41

--

0.33

--

--

ZrO2

--

75.1

--

--

0.29

CaO

--

1.71

--

--

1.56

MgO

--

--

--

5.71

56.8

LOI (%)

30.59

15.01

11.11

10.95

17.3

Bulk Density (g/cm3)

2.42

3.78

2.85

2.78

2.59

Apparent Porosity (%)

14.3

15.61

17.7

17.7

16.7

Fracture Strength (MPa)

8.4

6.97

6.73

6.73

7.8

Main Application

Ladle & Tundish


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