Fire Clay Brick

Introduction:

Fire Clay refractory brick refers to the clay products made of aluminosilicate material with Al2O3 content of 30%~40%. Fire clay bricks are made from a specific type of clay that has a high resistance to heat and thermal shock. This clay is composed of aluminum silicates and other minerals that provide the required strength and durability. The manufacturing process of fire clay bricks involves shaping the raw material into the desired form, drying it and then firing it at extremely high temperatures, usually over 2200°F. This process results in a dense, hard and durable brick that is ideal for use in high-heat environments.

Characteristics of  Fire Clay Brick

• Fire clay brick is a weak acid refractory product, which can resist the erosion of acid slag and acid gas, and has a slightly poor resistance to alkaline substances. The fire clay brick has good thermal performance and is resistant to sudden cold and heat.
• The fire resistance of fire clay brick is the same as that of silica brick, up to 1690~1730 ℃, but the load softening temperature is more than 200 ℃ lower than that of silica brick. Because fire clay bricks contain not only mullite crystals with high fire resistance, but also nearly half of the low melting point amorphous glass phase.
• In the temperature range of 0~1000 ℃, the volume of fire clay brick expands uniformly with the temperature rising. The linear expansion curve is approximately a straight line, with a linear expansion rate of 0.6%~0.7%, only about half of that of silica brick. When the temperature reaches 1200 ℃ and then continues to rise, its volume will start to shrink from the maximum expansion value. The residual shrinkage of fire clay brick leads to the loose crack of masonry mortar joint, which is a major disadvantage of fire clay brick.

When the temperature exceeds 1200 ℃, the low melting point substances in the fire clay brick gradually melt, and the particles are closely bound by each other due to the surface tension, resulting in volume shrinkage.

Classification of Fire Clay Brick

Fire Clay refractory bricks are mainly divided into clay refractory bricks for blast furnace, clay refractory bricks for hot blast furnace and large clay refractory bricks for glass furnace according to their uses.

 – Fire Clay refractory bricks for blast furnace

• Clay refractory bricks for blast furnace are clay bricks produced with refractory clay as raw material for lining blast furnace. Clay refractory bricks for blast furnace are used for the throat, shaft, hearth, bottom and shaft of small blast furnace lining.
• The clay refractory bricks for blast furnace require high fire resistance at normal temperature and can resist the long-term operation wear of the burden; Under high temperature and long-term operation, the volume shrinkage is small, which is beneficial to maintain the integrity of furnace lining; The apparent porosity is low, reducing the carbon deposition in the pores, and avoiding the damage of the refractory bricks due to expansion and looseness during use; Low melting point substances form less. Clay refractory bricks for blast furnace have better performance than common clay bricks.

 –  Fire Clay refractory bricks for hot blast furnace

• Clay bricks for hot blast furnaces are clay bricks made from refractory clay and used for building blast furnace hot blast furnaces. Clay bricks for hot blast furnaces are used for hot blast furnaces, regenerators and partitions. Clay bricks for hot blast furnaces shall have good thermal shock resistance, high load softening temperature and low creep.

 – Large Fire clay refractory brick for glass kiln

• Large Fire clay refractory bricks for glass kilns are used for building glass kilns, and the unit weight is generally not less than 50kg.

Application of Fire Clay Brick

Fire clay bricks are generally used for lining industrial furnaces such as blast furnace, hot blast furnace, electric furnace roof, blast furnace, reverberatory furnace and rotary kiln

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Complete specifications, customized processing. We are a manufacturer of refractory materials, with sufficient inventory and fast delivery

Source manufacturer, standardized production. Fully automatic and intelligent refractory production line, so as to ensure good product quality and stable quality.

R&D and production. The company is committed to the development, promotion and application of new refractory materials, new technologies and new products.

Timely after-sales service. Experienced engineering team, providing construction and technical support. To provide you with high-temperature kiln solutions.

Q: When will you arrange the production?
A: We usually arrange the production immediately after receiving your deposit payment if we have the item in stock. Otherwise, please confirm with us for lead time.

Q: What is your accepted payment type?
A: We only accept T/T, Paypal and Western Union. The letter of credit is also acceptable. Please communicate with our sales staff in advance to confirm whether your region supports it.

Q: Which logistic forwarder do you usually work with?
A: We work with EMS, TNT, UPS, FEDEX and other logistric forwarders. It is also possible to designate your own freight forwarder.

Q: More information?
A: If you have any questions during use, you can call our after-sales service hotline+8615136155678. Looking forward to cooperating with you

All of our export packages use wooden fumigation pallets specially used for export. The size of wooden pallet is generally 1.1m * 1.1m. Unshaped refractory materials generally use ton bags.

Bulk goods are generally transported by sea and containers. 20GP, 40GP and 40HQ containers are commonly used.

Samples or small packages of goods are generally transported by international express, and the common express delivery is as follows: