en
de

Wir freuen uns über Ihre Nachricht

So erreichen Sie uns direkt:

T +49 208 49538-0
E

Sie haben Fragen zu unseren Produkten und deren Anwendung? Die Spezialisten unseres Service-Teams beantworten Ihre Fragen:

Schreiben Sie uns
Abeckprodukte

Cover products

Schlacke_1_
Schlacke_1_

Our Metallurgical Products

Weerulin’s metallurgical products are ideal supporting materials in steel production, significantly contributing to the purity and stability of the desired steel grades. Whether in the converter, the electric arc furnace (EAF), the ladle furnace, or during secondary metallurgy in the vacuum unit, all the way to the tundish – our various types of slag include:

  • Reactive slags
  • Top slags
  • Slag formers
  • Purging slags
  • Thermal covering powders
Dreieck_FOR_MET_1400px_en
Dreieck_FOR_MET_1400px_en

Cover Products

In the production of clean steel, reactive slags play a particularly important role. They are intended to absorb non-metallic inclusions from the slag. At the same time, through good insulation properties, the slag can reduce the heat loss from the steel bath.

With the FOR MET product series, Weerulin has successfully optimized the interaction between grain size distribution, material gradient, and temperature to achieve a maximum melting rate and insulation capacity.

Reactive Layer

Calcium aluminate slag of the FOR MET type on the surface of the tundish provides optimal protection against re-oxidation through the fastest melting and sealing of the bath surface. When CaO reacts with Al2O3 at around 1550°C, no further binding heat is needed from the tundish; on the contrary, heat is released, which further accelerates the melting process.

2g2_Isolierung

Insulating Layer

Slag is often covered with carbon-containing rice husk ash. However, a disadvantage is the high SiO2 content (>90%). Due to the higher reduction potential at the slag-steel interface, there is a risk of non-metallic inclusions in the form of micro-aluminas. Therefore, we now rely on a combined single-layer cover:

2g3_Einlagig

Single-Layer Cover

Weerulin has developed the single-layer covering slag FOR MET L, which, in combination with a tundish lid, remains liquid throughout the entire sequence and fully fulfills all the positive properties of reactive covering: protection against re-oxidation, absorption of non-metallic inclusions, and insulation of the melt.

© WEERULIN GmbH 2024