博文

目前显示的是 三月, 2020的博文

Mullite Light Brick - RS Refractory Manufacturer

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The mullite light brick has an AL2O3 content of 50% to 85%. It is a new type of high-quality thermal insulation and refractory material with mullite as the main crystal phase and the combined phase. Mullite Light Brick - RS Refractory Manufacturer Because mullite has excellent high temperature mechanical properties and chemical stability. Therefore, mullite lightweight bricks have excellent properties such as high-temperature structural strength, low high-temperature creep rate, small thermal expansion coefficient, strong chemical resistance and good thermal shock resistance. It can be used as the lining of the kiln working surface that directly contacts the flame, which can significantly improve the energy saving effect of the kiln. Characteristics of mullite light brick: 1. Low thermal conductivity and good thermal insulation effect; 2. Low hot melt. Due to the low thermal conductivity, the mullite series of light heat-insulating bricks accumulate little heat ene...

Classification of Mullite Bricks - RS Refractory Manufacturer

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Mullite Bricks are high-aluminum refractory materials with mullite (3Al2O3 · 2SiO2) as the main crystal phase. Generally the alumina content is between 65% and 75%. In addition to mullite, those with lower alumina also contain a small amount of glass phase and cristobalite; those with higher alumina also contain a small amount of corundum. Contact RS .  Mullite brick  has a high fire resistance, which can reach above 1790 ° C. Load softening start temperature is 1600 ~ 1700 ℃ . The compressive strength at room temperature is 70 ~ 260MPa. Good thermal shock resistance. Mullite Brick for Sale in RS Refractory Manufacturer Classification of Mullite Bricks There are two types of mullite bricks, one is sintered mullite bricks and another is fused mullite bricks. The sintered mullite brick is made of high alumina bauxite clinker, and a small amount of clay or raw alumina is added as a binder, and then formed and fired. The fused mullite brick is made of high alu...

High-strength High-aluminum Castable by RS High-aluminum Refractory

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High-strength High-aluminum Castable  is a relatively common type of wear-resistant castable. It is based on high-quality corundum alumina and other aggregates and powders, and it is configured by adding a binder (heat-resistant stainless steel fiber) and an admixture. This wear-resistant castable has many excellent characteristics, such as good abrasion resistance, high thermal shock resistance, and stability at high temperature. For high-strength and high-aluminum castables, it is necessary to check whether the mold equipment is firm and reliable during the pouring construction. If slurry leakage or voids are found, the castables within the appropriate range should be removed in time and refilled.   Wear Resistant Castable High strength and high aluminum castable High-strength and high-aluminum castable has excellent corrosion resistance. Therefore, it can not only meet the requirements of corrosion prevention in the corrosive environment, but also meet the lo...

Construction and Maintenance of Wear-Resistant Refractory Plastics

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Construction of Wear-Resistant Refractory Plastics  at the water-cooled air chamber. Due to its special design and construction, the following points should be paid attention to in the construction of refractory plastics for water-cooled air chambers:   RS High Quality Plastic Refractory (1) The surface of the water-cooled pipe and pin is painted with asphalt paint, and the duct is covered with 2mm thick ceramic fiber paper. (2) Refractory plastics must be driven at one time, the thickness exceeding the standard shall be excavated, and the thickness less than 45 ° shall be excavated to make up. However, the plastic must be compacted, and there must be no voids or cavities. (3) Leave an expansion joint at an interval of 600mm × 600mm to avoid irregular cracks. Divide and frame construction during construction. The expansion joint is left in the middle of the tube and cut out with a knife. The thickness is half of the refractory plastic. It is also necessary to use...

Formulation of High-strength Refractory Castables

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The Formulation of High-strength Refractory Castables  is a topic that people in the industry care about but avoid. By consulting various materials, I have found some formulas of high-strength refractory materials and refractory castables that can be disclosed to the public, which are shared for your reference only. High-strength Refractory Castables Introduction to Refractory Materials Refractory material is an indispensable basic material for manufacturing industrial furnace linings and high-temperature vessels and components. It is widely used in high-temperature fields such as metallurgy, glass and cement. According to the construction process, refractories can be divided into qualitative refractories and unshaped refractories. Among them, unshaped refractories have been widely used because of their advantages such as low production cost, low energy consumption, simple process, etc. In many countries, the output of unshaped refractories has accounted for more than...