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Seven Flow

It’s a Kind of Magic for Your Ladle Bottom

At this point, Seven could tell you about the product special chemical composition or granulometry. This would explain the self-flowing behavior, but not the real effects yet.

While customers are initially impressed by the “magic” self-flowing behaviour of a material that seems dry, in the long run they are convinced by the technical and commercial advantages.

Facts & Figures

The steel ladle bottom is one of the most crucial parts of the entire steel operation. Some of the most modern steel plants in the world have adopted Seven Flow for the steel ladle bottom.

In a market traditionally dominated by bricks, this cutting-edge technology has shown its advantages in the recent years, getting more and more attention in the market. Especially the highly competitive and quality-oriented European steelmakers are constantly looking for an advantage in the setup of their steel ladle bottoms.

A variety of ladles up to 400 tons capacity have been successfully supplied to date.

 

Modern steel mills are nowadays under huge pressure to achieve highest quality products while minimizing time and respecting demanding budgets. Optimization is the leading factor, both in time and space – especially for steel ladle bottoms.


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Seven Flow Advantages

  • Smooth, joint-free lining: Joint-free refractories substantially improve safety during steel ladle operation as they decrease the risk of leakage and infiltration into the lining.
  • “Endless lining”: In contrast to traditional bricks which need to be completely replaced at the ladle campaign end, an “endless” refractory layer could be simply relined when needed. These maintenance repairs only replenish what is necessary and could therefore result in substantial cost savings.
  • Potential increase of ladle capacity: When the walls of a ladle are installed with “Magic Flow” instead of bricks, it results on a thinner refractory layer, thus potentially increasing the ladle inner volume. Volume is also an issue when you have to build thin refractory layers gaining more productive space to be filled with steel instead. Cast after cast, day after day, the gained volume means increased steel tonnage, lower costs, better position in the market, and competitive advantage.
  • Improved steel production and product quality
  • Steel temperature is better maintained and avoids carbon pick-up due to the absence of carbon on our castable materials reducing the thermal conductivity, and contains less non-metallic inclusions thanks to the smoother surface and absence of joints on a monolithic side wall and bottom.
  • Chemical and physical strength: High resistance to steel and slag contact, compatibility with all types of covering powders, abrasion resistance, high mechanical strength, coupled together with an enhanced ease of installation, make Seven self-flowing products the preferred material for the modern steel plants.

Flow solutions

Seven provides suitable self-flowing refractories thanks to its continuous research and innovation on formulation as well as raw material selection.

The proper selection of granulometric spectrum and distribution, correct identification of the suitable raw materials, in combination with synergic additives, gives Seven’s self-flowing refractories the same performance as standard or vibrating castable materials, where these ones cannot (or are not suitable to) be applied.

Seven guarantees proper flowing properties, while respecting all required requirements in terms of thermal, mechanical, physical needs.

  •  Usage in extreme situations: Wherever you cannot easily apply vibrating materials, or anchoring is a barrier, or you simply have to fill every space available. What if you simply could use a castable material? Benefit from the material properties and go for the Flow alternative.
  • Wide range of applications: from safety lining of steel mill vessels (ladles, tundish, etc.) to the working lining, including covers, sealing elements, etc. all of them could be achieved with the help of Seven Flow.