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Causes and prevention measures of cracks and collapses in refractory bricks during drying
After the refractory bricks are formed, they need to be dried in a tunnel drying kiln. During the drying process, due to improper operation or other reasons, it is easy to cause quality reasons such as brick cracks. The following are the drying quality reasons and preventive measures that are pr...Read more -
Anti-alkali corrosion test of corundum and mullite refractories in waste incinerator
Abstract: In order to explore the mechanism of corrosion of refractory materials for waste incinerators by alkali metal compounds, three castables of mullite, corundum and chromium corundum were subjected to corrosion tests at 800, 1000, 1200 and 1350 ℃ for 30 hours by the alkali vapor method. C...Read more -
The feasibility of replacing magnesia aluminum carbon bricks with corundum spinel castables in electric furnace steelmaking（二）
2.2 Composition and structure of corundum-spinel castable after use The thickness of the original working layer is 230～250mm, and the apparent morphology of the impact area at the bottom of the 8# ladle after 91 times of use. The residual thickness of the corundum-spinel castable is about 120mm...Read more -
The feasibility of replacing magnesia-aluminum-carbon bricks with corundum spinel castables in electric furnace steelmaking（一）
Electric furnace ladle has harsh operating conditions: high tapping temperature (1640～1690℃), as many as 1,000 steel grades, wide range of slag alkalinity (n(CaO)/n(SiO₂)=0.5～5), refining Long time (120～150min), high heating power, etc. The bottom working layer of the package has long bee...Read more -
Refractory castable construction method
1. Before the construction of refractory castables, the following inspections should be strictly carried out: (1) Check the appearance and cleanliness of the equipment to be poured; (2) Check the condition of construction machinery and tools, and spare parts such as vibrating tools must be intac...Read more -
Advantages of sintered brick tunnel kiln lightweight mullite brick ceiling
Product characteristics: low thermal conductivity, low heat capacity; high purity, low impurity content; high temperature resistance, direct flame contact; high strength, and excellent thermal shock resistance; can be cut at will. The mullite ceiling of the brick tunnel kiln includes multiple m...Read more -
Lebanon customer order 118 rolls 1260℃ Insulation Ceramic fiber blanket
118 rolls 1260℃ Insulation Ceramic fiber blanket are packed for delivering to our customer in Lebanon Factors affecting the service life of ceramic fiber blanket 1. Damage of mechanical stress Thermal expansion squeezes refractory bricks When the temperature of the kiln rises to a certain level,...Read more -
The introduction of magnesia brick
The main crystal phase of magnesia brick is periclase, which has the typical characteristics of general alkaline refractory products, but its thermal shock resistance is poor. It can be fired and no...Read more -
Saudi customer order 200 tons of low porosity clay bricks
200 tons of low porosity clay bricks are packed for delivering to our customer in Saudi. Clay bricks with porosity less than 18% are low porosity clay bricks. There are 16%, 12%, 15%, and 10% types. The lower the pores, the more expensive the price. What are its characteristics? High strength, h...Read more -
【Special Cement】Refractory Cement
Any raw material with high-quality bauxite and high-quality lime as raw materials, mixed in a certain proportion to form an appropriate amount of raw material, after sintering, the clinker with aluminate as the main component is ground into fine powder, and made into a fire-resistant clinker Hyd...Read more -
Some knowledge about corundum refractory castable
Among silicon-aluminum refractory castables, refractory castables with Al₂O₃ content greater than 90% belong to corundum refractory castables. Design principles of corundum castable Its raw material combinations come in many forms, such as (1) Use white corundum as aggregate and powder (2) Use p...Read more -
Croatia customer order 14 tons ceramic fiber bulk
14 tons ceramic fiber bulk are packed for delivering to our customer in Croatia Ceramic fiber and glass fiber have a variety of product forms. The price of glass fiber superfine silk cotton is lower; the price of glass fiber mat is higher than that of ceramic fiber blanket and cotton. Why is th...Read more
