Lz-55 Fireclay Brick High Temperature Furnace Back-up Lining High Alumina Brick¹

Product Description LZ-55 Fireclay Brick High Temperature Furnace Back-up Lining High Alumina BrickProduct DescriptionAluminosilicate refractory products with an aluminium oxide (Al2O3) content above 48%.A neutral refractory material with an alumina content above 48%. It is made of bauxite or other raw materials with high alumina content by forming and calcining. High thermal stability, refractoriness above 1770oC. Good slag resistance, used for masonry steelmaking furnace, glass furnace, cement rotary furnace lining.High load soft, low creep high alumina bricks [1] is to special grade bauxite, fused corundum, fused mullite as the main raw material made of high-grade refractory materials. The product has a high temperature creep is small, strong erosion resistance, thermal shock stability and other advantages, suitable for large and medium-sized hot air furnace, it is China's new hot air furnace required for high-quality, high-grade imports of refractories localisation to open up a successful road, has been included in the national 'Spark Plan' project.Product Feature1. RefractorinessThe refractoriness of high alumina bricks is higher than that of clay bricks and semi-silica bricks, reaching 1750~1790oC, which belongs to high-grade refractory materials.2. Load softening temperatureBecause of high alumina products in the Al2O3 high, less impurity quality, the formation of fusible glass body less, so the load softening temperature is higher than the clay brick, but because of the mullite crystals did not form a network organization, so the load softening temperature is still not as high as the silica brick.3, slag resistanceHigh alumina bricks in the Al2O3 more, close to the neutral refractory materials, can resist acidic slag and alkaline slag erosion, due to which contains SiO2, so the ability to resist alkaline slag than the ability to resist acidic slag is weaker.Typical ApplicationIt is mainly used for the lining of blast furnace, hot blast furnace, electric furnace roof, blast furnace, reflector furnace and rotary kiln. In addition, high alumina bricks are also widely used as heat storage lattice bricks for flat furnaces, plugs for pouring systems, spout bricks and so on..Product ParametersProperty LZ-80LZ-75LZ-70LZ-65LZ-55LZ-48Al2O3 content %≥807570655548Refractoriness under 0.2MPa (oC)≥153015201510150014501420Permanent Linear Change on Heating % 1500*2h(-0.4~+0.2)1450*2h(-0.4~+0.1)Apparent Porosity (%) 26-2028-20Compressive strength at ambient Temperature(Mpa)≥605045403530Density (kg/m3)2.2~3.0Company ProfileKAOWOO thermal insulation co.,ltd is a high-temperature insulation products manufacturing and thermal engineering services company. The company is located in Nanjing, close to Yangtze River, near the sea, with convenient transportation and superior geographical environment.Founded in 2021, the company is committed to energy saving and services in the field of high temperature. Our main business includes the production and supply of various types of refractory materials, customized professional lining design services, and engineering supervision and construction services. The main products include ceramic fiber products, insulating bricks & castables and refractory bricks & castables, unshaped refractory materials, high-efficiency thermal insulating aerogel mats and nano-sheets, and so on. Our technical and engineering experts are dedicated to the application and development of energy-saving industrial thermal insulation, and our products are widely used in metallurgy, petrochemical, machinery, ceramics, glass, electronics and other industries for heating equipment, industrial furnaces and kilns, heat insulation and thermal preservation projects and fire protection projects, which can save up to 15%-25% of energy consumption.Multi-category products, so that we have a larger share of the chinese market and the overseas market, the current products are exported to South Korea, Japan, Vietnam, India, the Middle East, Europe and the United States and other countries and regions, and continue to harvest favorable reviews.Based on the unremitting technical innovation and leading quality management, thanks to the cost advantage of domestic manufacturing, KAOWOO constantly help green environmental protection and energy saving, to provide customers with a complete set of refractory lining solutions.Hot SalesPackaging & ShippingFAQQ1::What kind of product can you offer ?A1:Our company can offer industrial refractory insulation materials. For example: Ceramic Fiber Products, Soluble Fiber Products,Fiberglass  Products,Calcium Silicate Products, Mineral Wool, Rock Wool,Insulating Firebricks Etc.Q2 : Do you provide free samples?A2 : Of course, free samples are available.Q3 : What is your lead time? A3 : It usually needs about 15- 20 days after receiving the PO.Q4: Why choose us?A4: Our technical and engineering experts are dedicated to the application and development of energy-saving industrial thermal insulation, and our products are widely used in metallurgy, petrochemical, machinery, ceramics, glass, electronics and other industries for heating equipment, industrial furnaces and kilns, heat insulation and thermal preservation projects and fire protection projects, which can save up to 15%-25% of energy consumption.

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