VUHZ A.s.

Dobra,
Czech Republic
http://www.vuhz.cz

Booth: 1874

VUHZ Eddy Current Mold Level Measuring System

Profile

National Research Institute of Iron and Steel named in short VUHZ was founded on April 1, 1948 by Czechoslovak Metallurgy association.
Its headquarters was in Prague. Since 1972 VUHZ a.s. has been located in Dobra near Frydek-Mistek in the industrial region of CZECHOSLOVAKIA. It was built for manufacturing of prototype equipment for iron and steel works as well as for manufacturing of a small series of an automation and measuring devices for those facilities.
With experience from more than 350 slab caster strands installations it is serving nowadays updated technology worldwide. Supporting technological and quality grow of the steel plants.
Mold level sensors, stopper actuators and other products are available to improve your quality and decrease defects and maintenance costs.

Brands: We are world leader manufacturer of the Eddy Current based Electromagnetic Mold Level Measuring Systems. We are also producer of another special equipment for CCM base on our own research and development.

Videos

Products

Eddy Current Mold Level Measurement System

Electromagnetic Mold Level Measurement System based on eddy currents principle... More Info Less Info

PRINCIPLE OF THE MEASUREMENT

Electromagnetic field generated by exciting coil induces the eddy currents in molten steel and in all surrounding conductive components. Distribution of eddy currents electromagnetic field depends on molten steel level in the mold. This field induces a voltage in sensing coils. The induced voltage is amplified and processed in microprocessor controlled evaluation unit.
Sensor viewing field is sufficiently wide therefore the sensor measures a global molten steel level in the mold.

SENSOR DESIGN

The sensor is designed according to the final customer requirements and possibilities.
The sensor body of heavy duty construction is made of solid block from stainless heat-resisted steel. Protection of the sensor body against damage during short-time overflow is ensured by efficient water cooling.
Each sensor is equipped with heavy-duty flexible cable with industrial connector. Depending on local conditions it is possible to split the cable by intermediate connector placed on the mold or next to the mold. The handling of the sensor could be easier with the short sensor cable.

COMPETITIVE ADVANTAGES

Possible Autostart
Possible Evaluation form 2 measuring places
Compatible with MEMS, EMBR a FC MOLD
No dangerous radiation
No manipulator is necessary
Mold level detector measures true molten steel level in the mold
Mold level detector measures "global" mold level
The detector does not need any manipulation or calibration before casting
Suppression of the influences of the electromagnetic brake (EMBR) or mold stirrer (MEMS)

Stopper Rod Actuators

Stopper Rod Actuators used on CCMs as part of Mold Level Control. Compatible with VUHZ Mold Level Measurement system.... More Info Less Info

-Robust actuator for heavy industries
-Only electrical connections
-Not self-locking
-Low weight
-Low force needed for movement in hand mode
-Flange and handle on customer’s request
-Fast and easy connection to stopper
-Industrial connector for connection to servodrive
-Possible to assembly by absolute or relative feedback
-Unique identification for operation & maintenance purpose is possible
-Thermo resistor is implemented