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Monolithic Refractories for Electric Arc Furnaces

monolithic refractories for Electric Arc Furnaces

In the demanding world of electric arc furnace (EAF) operations, the choice of refractory materials can make all the difference. Our range of Monolithic Refractories offers tailored solutions to meet the high-temperature challenges of EAF environments. Gunning Mix: Our Gunning Mix is a versatile, ready-to-use material designed for effective repairs and maintenance in EAFs. It provides excellent adhesion, erosion resistance, and thermal stability, making it an ideal choice for patching, hot repairs, and maintenance tasks. Dry Ramming Mix: The Dry Ramming Mix is specially formulated for lining EAFs and other high-temperature applications. Its easy installation and exceptional resistance to thermal cycling make it a reliable choice for long-lasting refractory linings. Hot Repair Mix: When rapid repairs are needed during EAF operations, our Hot Repair Mix delivers exceptional performance. It’s designed to withstand the intense heat and mechanical stress, ensuring minimal downtime and reduced production costs.

Key Features:
  • High-temperature resistance: Our monolithic refractories excel in withstanding the extreme temperatures encountered in EAF operations.
  • Superior erosion and corrosion resistance: These materials are engineered to resist the erosive and corrosive effects of molten metal and slag.
  • Easy installation: Whether for patching, lining, or quick repairs, our monolithic refractories offer ease of installation, reducing downtime and maintenance costs.
  • Longevity: Designed for durability, these refractories provide extended service life in the harsh conditions of electric arc furnaces.

Choose our Monolithic Refractories for Gunning, Dry Ramming, and Hot Repairs to enhance the performance and efficiency of your electric arc furnace operations. Our commitment to quality and innovation ensures that you have reliable solutions to keep your EAF running smoothly.

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Gunning Mix

The product has the characteristics of high adhesion rate, high temperature corrosion resistance and so on, especially in the converter, electric furnace late use effect is the best. The product can be sprayed and replenished in the furnace temperature of 300~1700°C, the amount of water added is generally about 15%, and can also be adjusted according to the furnace temperature to achieve satisfactory results. In the process of transportation and storage should pay attention to moisture, so as not to caking affect the use of effect, shelf life of two months.

Construction requirement
  1. 1. Use dry spray and add water to the gun head.
  2. Wind pressure 5-8KG/cm3, water
  3. pressure 4-5KG/cm3.
  4. The distance between the gun head and the surface of the construction body should be 0.8-1m.
  5. The thickness of a spray can not be greater than 30-50mm.
  6. The material is suitable for hot repair of various converter linings.
Physical and Chemical Indicators
ITEMUNITDL-80DL-75BDL-ABDL-B
Chemical composition                    AI2O380757575
refractoriness°C1790179017901790
0.2Mpar efractoriness under load°C1530153016201580
linear change on reheating0.2~-0.40.2~-0.40~-0.30~-0.4
Apparent porosity19192020
Cold Crushing StrengthMpa75656055
Thermal shock stability(1100°C water-cycle)Time3025
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Dry Ramming Mix

Dry ramming material is made of high purity magnesia as the main raw material, while introducing appropriate amount of iron oxide, calcium oxide and other compound additives mixed. The product is used for all kinds of electric steelmaking furnace bottom working layer, convenient and rapid construction, easy repair, at steelmaking temperature, can quickly form a dense sintering layer, anti-erosion, corrosion resistance, no pollution of molten steel, and can make the overall structure of the furnace bottom tends to be stable; To improve the operation rate of electric furnace, extend the service life, reduce the cost of tons of steel, the effect is very significant, by the use of TIsco, Ezhou Steel, Kungang, Guigang proved that it is a good product welcomed by users.

Construction requirement
  1. 1. Use dry spray and add water to the gun head.
  2. Wind pressure 5-8KG/cm3, water
  3. pressure 4-5KG/cm3.
  4. The distance between the gun head and the surface of the construction body should be 0.8-1m.
  5. The thickness of a spray can not be greater than 30-50mm.
  6. The material is suitable for hot repair of various converter linings.
Physical and Chemical Indicators
ITEMUNITDry Ramming Mix
Chemical Components                    MgO8.1
 CaO 5-7
 Fe2O3 6-8
Packing density2.5
compressive strength1300°C×3h15
 1600°C×3h Mpa30
Initial sintering temperature°C1100
Maximum service temperature°C1750
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Hot Repair Mix

The product has the characteristics of strong slag erosion resistance, erosion resistance, good thermal shock stability, especially suitable for hot repair of iron mixing furnace, hot metal ladle, etc.

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