Tundish slide gate systems
for billet and bloom casters

Controlling the flow of steel from the tundish to the mould is very important for Bloom and Billet Casters with flow control valve.
It strongly contributes to the ability to produce the optimum steel quality with the maximum caster safety.

ADVANTAGES

Precise flow control
Longer casting sequence at continuous caster
Easy handling due to the compact design
Automatic casting startup
Automatic bath level control in the mould
Visualization of the casting process

CONCEPT
Our “TM” tundish gate is provided with 3 plates in order to avoid the movement of the subentry shroud in the mould during the flow control by throttling.

MOLD LEVEL CONTROL CABINET

Three plate gate system (bore size 35mm or 40mm)
Designed for fully automatic casting operation
Direct connection between submerged nozzle and lower plate
Inert gas application on tundish nozzle and joints
Air tight system concept supported by argon bath principle

SCOPE OF SUPPLY

Mould Level Control Cabinet
Visualization and Process control
Mould Level Measuring System
Operator Panel and Control Boxes
Tundish Slide Gate mechanism
Hydraulic power unit
Hydraulic components on tundish car
Accessories for preparation area

ASSEMBLY AND DESIGN

Easy assembly and maintenance, designed to minimize the number of components, either on-line or off-line
Fastening with bolts
Easy detachable hydraulic cylinders
Hydraulic cylinders are installed on the tundish car and are easily disconnected form the gate
All hydraulic circuits are closed-loop
Separate preheating of submerged nozzle
High safety standard for operators and CCM

ADVANTAGES
The CRB series of quick nozzle changers offer a state-of-theart technology engineered to suit all casting requirements in terms of:

Extend casting sequence
Extend tundish lining life
Maintain tundish level for maximum quality
Re-start at desired speed
Change nozzles on individual strands
Emergency blanking and later re-start
All refractories are installed inside the mechanism

LOW WEIGHT / HIGH STRENGTH
The net weight of the gate assembled with the refractories is only 19.5 kg. The frame design and the material guarantee high stiffness and strength properties.

CRB 08.2
Two main structural parts that clamp the spring pads and the refractories. Double opening hinge. Blind nozzle must be inserted in the stand-by position after nozzle changing procedure.

CRB 09 SERIES
One main structure, interchangeable with the one of Q3 slide gates. Spring pads are bolted to the main structure Blind nozzle is always available in the emergency position for extra safety

SAFE OPERATION
In order to strongly increase the operational safety the system has:

Two, independent, spring pads for each rocker
Mechanical devices that prevent wrong operation of the cylinder.
High coaxial precision while changing the refractory nozzle.
Upper nozzle with round section and flying nozzle with square section inscribed inside the upper nozzle to maximize surface contact.
The preparation/testing table, during the refractories preparation, allows to check the springs though a load digital cell without further auxiliary operations.

This provides:

Strong increased operational safety.
Fast and frequent springs control.
Reduced non-operational times (it is no necessary disassemble the springs for the main structure).

ADVANTAGES
The Q3 sliding gate series is a compact 3-plates linear mechanism for dynamic flow control, expecially designed to meet all the requirements in closed casting conditions on tundish casting machines.
The system features consists of:

Lower refractory cost compared to existing system on market*
Fully automatic dynamic flow regulation operation
Direct connection between submerged nozzle and lower plate
Inert gas application on tundish nozzle and joints
Air tight system concept supported by argon bath principle
Optimized number of components

CONCEPT
Our Q3 tundish gate is provided with 3 plates in order to avoid the movement of the subentry shroud in the mould during the flow control by throttling.

FEATURES
All hydraulic circuits are closed-loop for trouble-free casting.
Fastened with bolts on tundish bottom.

SCOPE OF SUPPLY