Sliding Gate Plate

The ladle slide gate plate is mainly used for ladle flow control in steel-making plants. It is an important functional component for safe operation of ladles. The sliding gate nozzle of the ladle is used to control the steel flow and the height of the liquid level of tundish. The sliding gate nozzle consists of inner nozzle, upper sliding gate plate, collect nozzle and lower sliding gate plate.

TECHNICAL SPECIFICATIONS

Products	Unburned	Unburned	Fired at medium temperature (impregnation)		Fired at high temperature(impregnation)
Materials	Al₂O₃-C	MgO-Al₂O₃-C	Al₂O₃-ZrO₂-C		Al₂O₃-ZrO₂-C
Al₂O₃ %	≥ 90	≤12	≥80	≥75	≥77	≥75	≥75	≥75
ZrO₂ %	--	---	≥4	≥8	≥4	≥6	≥6	≥8
C %	≥ 3	≥3	≥5	≥5	≥6	≥6	≥6	≥6
MgO %	--	≥80	---		---
CCS MPa	≥120	≥80	≥100	≥100	≥120	≥120	≥120	≥120
BD g/cm³	≥ 3.05	≥2.90	≥3.12	≥3.12	≥3.10	≥3.10	≥3.12	≥3.15
AP %	≤ 11	≤10	≤10	≤10	≤10	≤10	≤10	≤10

Slide gate plates are available in a number of different chemistries and bond systems to best match the grades of steel and chemistries of the slag. Specific physical, chemical and mineralogical compositions of high purity ensure high corrosion and erosion resistance, optimum thermal shock resistance to yield optimum performance.

Function of Sliding Gate Plate

The sliding gate plate is a key component in steel ladle and continuous casting systems, designed to provide precise control of molten steel flow and ensure safe and stable operation.

Flow Control

The sliding gate plate regulates the opening size of the nozzle through a sliding mechanism, enabling accurate control of molten steel flow. This is essential for maintaining a stable and continuous casting process.

Operational Flexibility

It allows operators to adjust the flow rate of molten steel according to different production requirements and process conditions, ensuring adaptability and improved casting efficiency.

Emergency Shut-Off

In emergency situations, the sliding gate plate can fully close the flow channel, stopping molten steel flow immediately. This helps prevent accidents, reduce losses, and enhance operational safety.

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