Calderys

STEEL CLEANLINESS IN TUNDISHES - CALDERYS SOLUTION

 

 

Over 95% of the world's carbon steels and specialty steels are produced through continuous casting. A tundish, an intermediate vessel, is used to transfer finished steel melt from a ladle to the mould in a continuous casting machine.

Inclusions cause problems during the casting, rolling, and heat treating processes and sometimes result in failure of the steel during its application. Existing installation of various flow control devices, such as weirs, dams, baffles with holes, pour pads, and turbulence suppressers, within the tundish, are increasing the steel residence time. However, sometimes this is not enough for optimizing the inclusion removal in major cases.

CALDERYS SOLUTION: THE PATENTED CALDE™ PLUG TUNDISH WB

Calderys has developed an innovative and highly efficient solution to optimize steel cleanliness in the tundish and also improve the hydrogen removal. This solution is a porous well block installed with Argon gas delivery.

ALDE™ PLUG TUNDISH WB
CALDE™ PLUG TUNDISH WB
Network of fine bubbles
Network of fine bubbles

With its inner and outer sides made of dense refractory castable withstanding the effects of corrosion and hot abrasion, an inner porous liner that can deliver a network of fine bubbles, our CALDE™ PLUG TUNDISH provides added value resulting from the following features:

  • esidence duration increase to favor the oxidized slag emulsification to be floated out
  • eliminate the trapping of inclusions by maximizing the frequency and surface area of the bubbles
  • eliminate high turbulence near the slag/metal interface, which is the major cause of slag entrainment.
  • an anti-vortex system to avoid suspended fine alumina particle agglomeration, which is highly efficient in processes involving a stopper rod. It also works well with a sliding gate flow control system
  • improve significantly the removal of hydrogen and partially nitrogen in the tundish.

The CALDE™ PLUG TUNDISH WB has been proven and tested for over one year in major steel plants. Contact us to find out more!

If you want to know more, please contact our Expert!

About Calderys

Our mission is to help you meet your ever increasing production and productivity targets, whilst protecting the safety of your people and the integrity of your equipment. Our focus is to deliver safe, reliable and high performing refractory solutions customized to your needs. Our international production and sales facilities allow us to develop and deliver customized solutions based on monolithic and ready shape monolithic refractory materials worldwide in a fast, efficient, and safe manner.

FOCUS

Steel Ladles Monolithic Solutions

Case studies 01

An integral part of the metallurgical process, our monolithic concept for ladles help to control pollution of the steel, chemical & mechanical stability, whilst ensuring the safety of the operators.

Read more

Shotcreting CALDE™ SPRAYCAST

Case studies 01

This extremely efficient shotcreting technology can achieve properties similar to casting, but with efficiency and installation speeds that exceed normal gunning methods.

Read more

JOBS / Careers

Related companies: www.imerystc.com, www.imerys-toiture.com, www.imerys-structure.com, www.ikf-solutions.com