for steel ladle refractory material magnesia carbon bricks

Specifications

Advantages:
Excellent performance of basic slag resistance, high refractoriness, thermal stability, anti-erosion;

  fused chrome magnesite bricks  

Application:

         As an excellent material ,can be used for magnesia bricks, unshaped refractory materials.At same time can be used in metallurgy, building materials, chemical industry, national defense, scientific research, aerospace, medical equipment components and household appliances

 

products technology:

 

1.The products adopt fused magnesia as main raw material, and manufactured through a reasonable size distribution, high pressure forming and high-temperature sintering. The product has strong resistance to slag corrosion and high temperature dimensional stability. Mainly used in glass furnace regenerator, the upper part.

 

2.The regular magnesia bricks are made from dense dead burned magnesia that makes the bricks in good refractoriness, corrosion-resistance, and widely used in checker chamber of glass tank, lime kiln, non-ferrous metallurgical furnaces, open heart furnace, iron mixer and EAF of steel-making, and also ferro-alloy furnace, etc.

 

The bricks with MgO 95% or more in content take the secondary-burning dead burned magnesia or electrofused magnesia as the raw material and bured under the condition of ultra high temperature. They have the features of highly directly bonded and corrosion-resistance and widely used in various kinds of high temperature kilns and furnaces

 

Magnesia Brick Features:

 

1. Excellent performance of basic slag resistance, high refractoriness, thermal stability, anti-erosion and anti-peeling

2. Excellent strength of pressure bending, abrasion proof

3. Excellent performance of high-temperature firing, high rates of associative property, anti-erosion ability

4. Excellent thermal shock resistance and spalling resistance

5. Excellent ability of high refractoriness, anti-erosion of alkaline residue;

6. High temperature load of refractoriness under load. High mechanical strength and high temperature resistance 

7. Excellent corrosion resistance

8. Resistance to spalling

 

physical and chemical index:

 

Item		Behaviors
		Fused Rebonding Magnesia Brick
		DMZ-95	DMZ-96	DMZ-97	DMZ-98
Chemical composition	MgO %	≥95	≥96	≥97	≥97.5
	SiO2 %	≤1.5	≤1.2	≤1.0	≤0.5
	CaO %	≤1.5	≤1.2	≤1.2	≤0.6
Apparent Porosity %		≤18	≤18	≤17	≤15
Cold Crushing Strength Mpa		≥55	≥60	≥60	≥60
0.2Mpa Refractoriness Under Load T0.6		≥1650	≥1680	≥1700	≥1700
Bulk Density g/cm3		≥2.95	≥3.0	≥3.05	≥3.05
Thermal Stability 950°C Wind cycles		≥15	≥20	≥20	≥20