Iron & Steel
Secondary Steel Making
RH-Degasser Unit
An RH Vacuum Degasser is an equipment for swift degassing of large amounts of molten steel. It is used for mass production of high purity steel, realizing decarburization and heating by injecting pure oxygen gas into the vacuum vessel.
Solutions for RH-Degasser
We offer a range of high performance Directional Purging Plugs with customized design and secondary metallurgical operations which have been adopted by various steel plants.
These are the solutions for RH-Degasser:
- HIGH ALUMNIA and ALUMNIA SPINEL BASED PLUGS
- Our PURGING PLUGS are based on tabular Alumina, Alumina Magnesia Spinel and Alumina Chrome based materials
Special Features:
- High resistance to slag and abrasion. High thermal shock resistance
-
Low RTE values
Numbers of purging slits vary from 20-30 - Slit thickness of 0.25-0.30 mm
- Minimum risk of metal infiltration
- High blowing capacity of 1000-1200 ltr./min.
Solutions for Snorkel
These are the solutions for Snorkel:
- FUSED DIRECT BONDED MAG-CHROME and LOWER CEMENT CASTABLES for SNORKELS
- FUSED DIRECT BONDED MAG CHROME for LOWER VESSEL
- DIRECT BONDET MAG-CHROME for MIDDLE VESSEL
Special Features:
- Provides high hot strength
- High resistance to Corrosion
- Impedes infiltration of slag & metal
VOD & AOD Unit /
Ladle Furnace
Vacuum Argon Decarburization (VOD) / Argon Oxygen Decarburization (AOD) is primarily a process used for making stainless steel. In VOD, the vessel works with oxygen injection and subsequently with vacuum treatment for decarburization, while in AOD, the initially melted metal is transferred to the AOD vessel where the process of decarburization, reduction and desulphurisation takes place.
A Ladle Furnace or Ladle Refining Furnace is used to refine the quality of liquid metal to make high quality steel by raising temperature and adjusting the chemical composition of molten metals.
Solutions for VOD Unit
These are the solutions for VOD Unit:
- MAGNESIA DOLOMITE BRICKS
- DIRECT BONDED and RE-BONDED FUSED BRICKS
- MAGNESIA CARBON BRICKS
- HIGH STRENGTH MAGNESIA CHROME and DIRECT BONDED MAGNESIA CHROME BRICKS
- REBONDED FUSED GRAIN MAGNESIA-CHROME
- SPECIALLY DESIGNED PURGING PLUG
Special Features:
- Our Magnesia Dolomite Bricks; and direct bonded & re-bonded fused Magnesia Chrome Bricks are specially made to resist the severity of VOD operations such as high operating temperature, low basicity slag and severe turbulence of stee
- Magnesia Dolomite Bricks for AOD converters made from synthetic Magnesia Dolomite Clinker have high density and purity, and hence exhibit uniform physical, chemical and thermal properties
- These bricks also show excellent hydration resistance, high corrosion resistance to secondary refining slags with low basicity and high hot abrasion resistance to metal
Solutions for Ladle Furnace
These are the solutions for Ladle Furnace:
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MAGNESIA CARBON BRICKS
ALUMINA MAGNESIA CARBON BRICKS
LOW CARBON AND ALUMINA SPINEL BRICKS for work linning - CHROME MAGNESITE AND FIRECLAY for safety linings
- BASIC GUNNING and RAMMING MASSES
- CONVENTIONAL AND LOW CEMENT CASTABLES for safety along with peripheral lining
- PRECAST HIGH ALUMINA CASTABLE BLOCKS
- ALUMINA SPINEL BRICKS for Ladle and HIGH ALUMINA PLASTIC for closing the retainer
Special Features:
- Our Magnesia Carbon Bricks with improved carbon bonding and special characteristics like low coked porosity, high coked cold crushing strength, excellent corrosion, erosion, thermal shock & oxidation resistance and high hot strength are suitable for different zones depending on operational severity
- Our Alumina Magnesia Carbon Bricks with controlled residual expansion are recommended for the middle zone and bottom of the Ladle Furnace to prevent joint erosion and metal penetration
The Fusion of East and West.
Best in Refractories.
QUICK LINKS
INDUSTRIES
CONTACT
-
Dalmia GSB Refractories GmbH
Flottmannstraße 57
44807 Bochum
Germany - +49 (0) 2 34 - 9 04 53-0
- info@DalmiaGSB.com