What is a sliding bucket attachment?

The sliding nozzle of the ladle is an important structure for controlling the flow of molten steel in the ladle. In the process of transporting molten steel from ladle to tundish and from tundish to the mold, it is necessary to ensure compactness and concentration of the steel flow and minimize contact of molten steel with the atmosphere to reduce oxidation.

Introduction of sliding nozzle system

Sliding nozzle system, that is, the steel supply system (collectively called a flow control system), which combines the upper nozzle, sliding plate and lower nozzle (submersible long nozzle), Ensures a leak-free steel flow and minimizes the risk of secondary oxidation of molten steel. With the development of continuous casting technology and secondary refining technology, the sliding nozzle system has become increasingly important in the modern iron and steel smelting process and has become an indispensable part of smelting..

What requirements must sliding bucket attachments meet??

First of all, required to have sufficient strength at high temperatures, to withstand the static pressure of molten steel, and secondly, the sliding surface of the upper and lower sliders must be very smooth with high flatness, to ensure tight contact and no leakage of molten steel during the pouring process. It is also resistant to erosion and corrosion and has good heat resistance, which allows you to withstand sudden temperature changes, Molten steel erosion and slag erosion.

Bucket slide material

Aluminum carbon and aluminum zirconium carbon are mainly used, which mainly can meet the needs of ordinary continuous casting of steel. However, when the carbon sliding plate heats up, carbon oxidation occurs, and carbon loss leads to the reaction of the sliding plate with the slag, swelling, grinding, erosion, steel leakage, etc., What, ultimately, manifests itself in the destruction of holes in steel and surface corrosion. Thus, Sliding attachments and sliding bricks are consumables and need to be replaced frequently to ensure production safety.

Importance of Sliding Bucket Attachment

• Improving melting efficiency: Precise sliding nozzle flow control helps improve molten steel dosing and control accuracy, ensure efficient operation of the smelting process, and also improve melting efficiency and productivity.
• Steel quality guarantee: Stable regulation of sliding nozzle flow rate can ensure uniform quality and composition of molten steel, reduce uneven mixing and inclusions, and also improve the stability and consistency of steel quality.
• Increased operational safety: Precise control of the sliding nozzle reduces operator risk and reduces the likelihood of operational errors and accidents