Hot Patching EAF Gunning Mix

Hot Patching EAF Gunning Mix

Hot patching EAF gunning mix manufactured by CH Refractories is easy to construct and with long service life.
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Description
Technical Parameters
Product description

 

The Hot Patching EAF Gunning Mix is a refractory spray material specially used for electric arc furnaces, suitable for maintenance and repair under high-temperature conditions. Its main function is to repair the refractory lining in key areas of the furnace to extend the service life of the furnace lining and improve production efficiency.

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Features

 

Excellent high temperature resistance
The Hot Patching EAF Gunning Mix are made of high-purity magnesium oxide and carbon-based materials, which can withstand extreme temperatures up to 1700°C. This material has a low thermal expansion coefficient, which can reduce structural deformation and cracking under high temperature conditions, ensuring stability and durability in high thermal shock environments.

 

Excellent resistance to slag erosion
Slag erosion is one of the main causes of arc furnace lining wear. Our products significantly enhance slag resistance by adding optimized proportions of antioxidants and high-density refractory aggregates. Compared with ordinary spraying materials, its corrosion resistance is improved by about 30%.

 

Wide applicability
Our products can be widely used in key areas such as slag mouths, furnace walls and furnace doors of electric arc furnaces. Its specific formulations for different areas ensure that the material can perform at its best under a variety of working conditions.

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Physical and chemical index of hot patching EAF gunning mix

 

Brand

CH-DPB87

CH-DPB75

CH-DPB65

MgO/ %

≥87

≥75

≥65

CaO/ %

-----

≥10

≥30

Bulk density/g/cm3

≥2.60

≥2.40

≥2.30

Cold crushing strength/ MPa

≥15 (110℃ , 24h)

≥15 (110℃ , 24h)

≥15 (110℃ , 24h)

≥25 (1500℃ , 3h)

≥20 (1500℃ , 3h)

≥20 (1500℃ , 3h)

Permanent linear change, %

0~-1.5(1500℃, 3h)

0~-2.5(1500℃, 3h)

0~-3.0(1500℃, 3h)

 

Packages and delivery:

 

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Physical and chemical index of hot patching EAF gunning mix

 

Brand

CH-DPB87

CH-DPB75

CH-DPB65

MgO/ %

≥87

≥75

≥65

CaO/ %

-----

≥10

≥30

Bulk density/g/cm3

≥2.60

≥2.40

≥2.30

Cold crushing strength/ MPa

≥15 (110℃ , 24h)

≥15 (110℃ , 24h)

≥15 (110℃ , 24h)

≥25 (1500℃ , 3h)

≥20 (1500℃ , 3h)

≥20 (1500℃ , 3h)

Permanent linear change, %

0~-1.5(1500℃, 3h)

0~-2.5(1500℃, 3h)

0~-3.0(1500℃, 3h)

 

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