Jul 24 2020
Rongsheng Refractory Cement for Sale in Philippines

Refractory Cement for Sale is also called bauxite cement, high alumina cement, aluminate cement. According to the national standard GB201-2000, refractory cement is also collectively referred to as CA50 aluminate cement. In order to distinguish the strength of cement, such symbols are often used to indicate: CA50-A600, CA50-700, CA50-A900, etc. Refractory cement is a fast-setting, fast-hardening, high-strength high-temperature binder. The initial setting time is generally about 2 hours. The final setting time is generally about 4 hours. The strength can reach 70% within three days, and the strength can reach 100% of the overall strength within 28 days. Refractory cement, high alumina fine powder, high alumina aggregate, and other additives are formulated into refractory castables according to a certain particle gradation. Rongsheng Refractory Cement for Sale, Its refractory temperature can reach 1500 degrees Celsius, and it is widely used in high-temperature furnace engineering.

High Alumina Refractory Cement
High Alumina Refractory Cement

Get Free Quote

    Free Quote

    Your Name (required)


    Your Email (required)

    Your Phone

    Required Products (required)

    Enquiry Information

    Classification of Refractory Cement for Sale

    Refractory cement is one of the main materials for making high-temperature furnace linings. It is Refractory Cement for Sale with refractoriness not lower than 1580°C. According to different compositions, it can be divided into aluminate refractory cement, low calcium aluminate refractory cement, calcium magnesium aluminate cement, and dolomite refractory cement.

    Aluminate cement can be divided into four categories according to Al2O3 content:

    • CA-50, 50%≤Al2O3＜60%
    • CA-60, 60%≤Al2O3＜68%
    • CA-70, 60%≤Al2O3＜77%
    • CA-80, 77%≤Al2O3

    The Main Components of Refractory Cement

    Refractory cement refers to cement with calcium aluminate as the main component. Refractory Cement for Sale is the basic bonding agent of unshaped refractory-casting refractory. Its chemical composition is mainly Al2O3 and CaO, and some also contain quite a lot of Fe2O3 and SiO2. The mineral composition consists of the following three kinds of minerals, CaO·Al2O3 (CA),  CaO·2Al2O3 (CA2),  12CaO·7Al2O3 (C12A7) three compounds. And it is composed of 2CaO·Al2O3·SiO2 (C2AS) containing inclusions and 4CaO·Al2O3·Fe2O3 (C4AF).

    Refractory Cement
    Refractory Cement

    Get Free Quote

      Free Quote

      Your Name (required)


      Your Email (required)

      Your Phone

      Required Products (required)

      Enquiry Information

      Properties of Refractory Cement

      The properties of Refractory Cement for Sale mainly depend on its mineral composition. The main mineral of refractory cement is monocalcium aluminate (CA), which has a high hydraulic activity and coagulates. Although it is not very fast, it hardens quickly, and the hardening time does not exceed one day. It is the main source of the strength of high alumina cement, especially the early strength. Calcium aluminate (CA2) has slower hydration and hardening, with lower early strength and higher late strength. the C12A7 has the characteristics of fast hydration and fast setting, but the strength is not high. In ordinary high alumina cement containing inclusions ( C2AS and  C4AF), C4AS plays a role in hardening the cement as soon as possible. In high-grade high-alumina cement, C12A7 plays a hardening role. As for C2AS, basically it does not produce hydration, so it cannot show its strength.

      Refractory cement contains 5 kinds of calcium aluminate minerals, and these calcium aluminates will show intense heat generation as the hydration reaction proceeds. Ordinary high-alumina cement contains 53-55% Al2O3. After 5-8 hours, the temperature reaches a peak value of 80-90℃. The high-alumina cement containing 70% Al2O3 will reach the peak temperature after 10-12h and the high-alumina cement containing 80% Al2O3 after 8-10h, which are 80 ℃ and 70 ℃ respectively.

      The heating temperature and the time to reach the maximum temperature of a single cast of different types of high alumina cement are determined by the heating characteristics and content of the calcium aluminate contained.

      Rongsheng Refractory Cement Manufacturer
      Rongsheng Refractory Cement Manufacturer

      Get Free Quote

        Free Quote

        Your Name (required)


        Your Email (required)

        Your Phone

        Required Products (required)

        Enquiry Information

        How to Use Refractory Cement

        The use of refractory cement is very simple, it can harden after adding water and mixing. Generally, there is no need to add other binders, but some refractory aggregates and powders can be added. If only refractory cement is used, a lot of cracks will occur after high temperature. It can be used to cement various refractory aggregates, such as corundum, calcined high alumina bauxite, etc. It is made into the refractory mortar or refractory castable, which is used as lining of cement rotary kiln and other industrial kilns.

        Precautions for Refractory Cement

        Many people tend to confuse refractory cement with refractory soil. If refractory cement and refractory soil are used together, the use-value of refractory cement will be greatly reduced. It is equivalent to mixing refractory cement and loess together. The solidification strength and marking of refractory cement will be much lower. It is recommended that workers who have been engaged in furnace construction for a long time, in refractory construction, use refractory cement and refractory soil rigorously.

        High Alumina Castable Refractory Cement
        Rongsheng High Alumina Refractory Cement for Sale

        Get Free Quote

          Free Quote

          Your Name (required)


          Your Email (required)

          Your Phone

          Required Products (required)

          Enquiry Information

          Refractory Cement for Sale Price

          Because refractory cement has the following characteristics, the consideration of the Refractory Cement for Sale price also needs to be analyzed according to specific working conditions.

          1. Refractory cement is a bonding agent used in thermal kilns or wall linings.
          2. This type of cement is different from other types of cement, it still maintains a firm bond under high-temperature conditions.
          3. Refractory cement will have a certain strength at room temperature, which is used to ensure the hardened shape of the preform.
          4. In addition, refractory cement solidified at room temperature has some physical and chemical advantages. For example, through the cement solidification process, the internal moisture of the cement product can be quickly precipitated, or the internal structure can be tightly reinforced.

          The price of commonly used refractory cement is generally 1800 yuan per ton. Some users need a small amount of refractory cement to make small furnaces, and the price at this time is calculated according to the price of each bag.

          What is the price of refractory cement for boilers? There are also many types of refractory cement for boilers, mainly because of the different aluminum content. The general CA-50 is about 1500, the cheaper one can reach about 1200, and the most expensive CA-80 and 70 can reach 5 to 6 thousand tons. The refractory cement prices listed in this article come from the Internet and are for reference only. The specific price is subject to the price provided by the supplier at the time of purchase. Get more details on refractory cement Philippines for sale. Please leave us your requirements.

            Get Free Quote

            Your Name (required)

            Your Email (required)

            Your Phone

            Required Products (required)

            Enquiry Information

            aluminabricks 0 Comments
            Jul 17 2020
            Learn More About Refractory Plastics

            Refractory plastics are made of refractory aggregates and powders, raw clay and chemical compound binders, and additives. After preparation and mixing, it is extruded into a brick shape. After the package is stored for a certain period of time, it still has good plasticity and can be constructed by tamping. But the plastic-refractory has better thermal shock resistance and easy construction. Applicable to various heating furnaces, soaking furnaces, annealing furnaces, hot air furnaces, etc. It can also be used in furnace cover of a small electric arc furnace, burner of the high-temperature furnace, and other parts.

            Corundum Plastic Refractory
            Corundum Plastic Refractory

            Get Free Quote

              Free Quote

              Your Name (required)


              Your Email (required)

              Your Phone

              Required Products (required)

              Enquiry Information

              Classification of Refractory Plastics

              Refractory plastics can be divided into clay, high-alumina, mullite, corundum, chromium, silicon carbide, and zirconium-containing refractory plastics according to the variety of refractory aggregates. According to the type of binder, it can be divided into refractory plastics combined with aluminum sulfate, phosphoric acid, phosphate, water glass, and resin.

              silicon carbide plastic refractory
              silicon carbide plastic refractory

              Get Free Quote

                Free Quote

                Your Name (required)


                Your Email (required)

                Your Phone

                Required Products (required)

                Enquiry Information

                Properties of Refractory Plastic

                Workability of refractory plastic.

                Generally, plastic refractory should have high plasticity. And after a long period of storage, it still has a certain plasticity. If the plasticity of the plastic refractory is not significantly reduced during its storage period, hydraulic binders cannot be used. If an air-hardening binder is used, sealing measures must also be taken during storage. However, since some of the binding agents may gradually coagulate, the plasticity is gradually lost. When the plastic refractory has high water content, it is also easy to become hard due to the loss of water retention, which makes the water dispersed and lost. In order to keep the plasticity of refractory plastics unchanged during storage for a long time, retarding measures must be taken.

                The hardening and strength of refractory plastics.

                Ordinary refractory plastics are hard. Since there is no chemical binder in it, the strength before unsintering is very low. However, at a certain temperature, the strength increases with increasing temperature. After sintering at high temperatures, the cold strength greatly increased. The hot state strength decreases with increasing temperature at a high temperature.

                Refractory plastics added with sodium silicate have a relatively fast strength change after construction. To properly control the drying speed, it is not easy to produce shrinkage cracks. The mold can be removed quickly after construction. Refractory plastics containing this kind of binder are suitable for large kilns with long construction periods.

                Refractory plastic shrinks during heating.

                But plastic refractory contains more clay and moisture, and it often shrinks greatly during drying and high-temperature heating. Generally speaking, because plastic refractory contains a considerable amount of clay, its deformation under high-temperature load will be higher than other unshaped materials. So for plastic refractory, its volume stability is often used as an important technical indicator. (National regulations: the shrinkage of high-grade clay refractory plastic after heating to 1400°C should be no more than 4%. The shrinkage of special-grade clay refractory plastics after heating to 1600°C should be less than 2.5%)

                The thermal shock resistance of refractory plastics.

                Compared with sintered refractory products of the same material and uncustomized refractory materials of other materials, refractory plastics have better thermal shock resistance. Due to the high thermal shock resistance of refractory plastic, it is better to be used where the temperature fluctuation is large.

                RS Clay Plastic Refractory for Sale
                RS Clay Plastic Refractory for Sale

                Get Free Quote

                  Free Quote

                  Your Name (required)


                  Your Email (required)

                  Your Phone

                  Required Products (required)

                  Enquiry Information

                  Uses of Refractory Plastics

                  Refractory plastics are mostly used in boiler walls and roofs of boilers. It is also used in a heating furnace, soaking furnace, and annealing furnace. But the plastic refractory has a low bulk density and good thermal shock resistance. When used in the heating process and high temperature, it will not cause serious deformation due to crystal phase change. The mineral composition near the heating surface is mullite and cristobalite crystallites, and the glass phase is less. Therefore, refractory plastic is particularly suitable for furnace walls with large temperature fluctuations and high-temperature furnace roofs that receive flame impact or radiation. Learn more from Rongsheng Refractory Materials Manufacturer.

                    Get Free Quote

                    Your Name (required)

                    Your Email (required)

                    Your Phone

                    Required Products (required)

                    Enquiry Information

                    aluminabricks 0 Comments
                    Jul 9 2020
                    Damage and Repair of Carbon Brick Lining in the Furnace Hearth

                    The temperature of the carbon brick in the furnace hearth is too high, the working conditions of the lining deteriorate, and the damage is accelerated, which affects the long life of the blast furnace and the safe operation of the equipment. For the damage and repair of carbon brick lining in the furnace hearth, all manufacturers are looking for effective measures to curb the rising temperature of carbon bricks. Govern at the early stage of hidden dangers to ensure safe and efficient operation of equipment and strengthen smelting.

                    Blast Furnace Carbon Bricks
                    Blast Furnace Carbon Brick Lining

                    Get Free Quote

                      Free Quote

                      Your Name (required)


                      Your Email (required)

                      Your Phone

                      Required Products (required)

                      Enquiry Information

                      Analysis of the Damage to the Lining of Blast Furnace Carbon Brick

                      After the blast furnace was put into production for a period of time, due to the consumption of ceramic coasters, the carbon brick lining in the hearth directly suffered the erosion of the molten iron, which may be partially damaged. The bottom of the hearth is recessed and cracked in the shape of a garlic head so that the temperature gradient in the carbon brick increases and the high-temperature area moves outside the furnace.

                      In addition, the carbon ramming mass material filled between the ring-shaped carbon brick and the stave may shrink after a long time of carbonization. Especially when the blast furnace is built, the charcoal ramming material is not compacted, and it is more likely to be loose. A gas gap is formed in the carbon ramming layer, which seriously affects the cooling effect of the cooling wall on the carbon brick. The thermal resistance of the gas is 200 times that of the dense carbon ramming.

                      Excluding the damage to the cooling stave, the reason why the monitoring temperature of the thermocouple built in the carbon brick is higher than the normal temperature is mainly caused by the following two situations. In general, by observing the temperature difference between the cooling wall inlet and outlet water, the reason for the local temperature rise of the carbon brick lining can be roughly judged. If the temperature difference between the incoming and outgoing water is higher than the normal part, it should be caused by the carbon brick being eroded and thinned to increase the intensity of the heat flow. When the temperature difference between the incoming and outgoing water is lower than the normal part, it should be caused by the shrinkage of the carbon ramming material and the increase in thermal resistance caused by the gas gap. When both factors are combined, changes in the temperature difference between the incoming and outgoing water may cancel each other out and the changes are uncertain.

                      RS High-Quality Ramming Mass
                      RS High-Quality Ramming Mass

                      Get Free Quote

                        Free Quote

                        Your Name (required)


                        Your Email (required)

                        Your Phone

                        Required Products (required)

                        Enquiry Information

                        Repair of the Damaged Carbon Brick Lining of Blast Furnace

                        For the former case, it should be recommended to adopt vanadium-titanium ore protection measures in blast furnace production operations. Increasing the viscosity of the solution in the hearth will help to form a protective layer with a certain thickness on the surface of the carbon brick, to avoid the high-temperature area caused by the further erosion of the carbon brick lining moving in the direction of the furnace. For the latter case, the cooling wall hot surface grouting measures can be taken to eliminate the gas gap in the carbon ramming layer and improve the cooling effect of the cooling wall on the carbon brick. When necessary, the two measures are adopted at the same time to achieve the purpose of reducing the temperature of the furnace carbon brick.

                        The grouting measure for the hot surface of the cooling stave is to find out the filling position of the iron filings between the two cooling studs at the part where the temperature of the carbon brick in the hearth is too high. After drilling holes in the furnace shell with a magnetic drill, drill through the iron filings layer with an impact drill to reach the carbon ramming layer. Then use a negative pressure ejector to suck out the debris clogged in the hole to make the grouting pipeline unblocked. A high thermal conductivity furnace and a special carbonaceous bottom of the furnace are used to press the slurry into the cold and hot surface of the cooling wall and grouting at the same time. To fill the air gap of the carbon ramming mass layer on the hot surface of the cooling stave to improve the cooling strength of the stave on the carbon brick.

                        RS Refractory Bricks Factory
                        RS Refractory Bricks Factory

                        Rongsheng Refractory Bricks Manufacturer

                        Rongsheng has extensive experience in the production and sales of monolithic refractory materials and refractory bricks. Rongsheng’s fully-automatic unshaped refractories production line, with an annual output of 80,000 tons. And our refractory materials products have been sold to more than 60 countries around the world. Such as Malaysia, South Africa, India, Indonesia, Pakistan, Netherlands, Kuwait, Kenya, Russia, United States, Philippines, Vietnam, etc. To purchase high-quality carbon bricks and high-quality ramming mass materials, please leave your specific needs on the message form of this website. We will reply to you as soon as possible.

                          Get Free Quote

                          Your Name (required)

                          Your Email (required)

                          Your Phone

                          Required Products (required)

                          Enquiry Information

                          aluminabricks 0 Comments
                          Jul 1 2020
                          What Details Should be Paid Attention to When Using Refractory Mortar?

                          Refractory mortar is a bonding connection material for building refractory bricks. Proper selection of refractory mortar is very important for the integrity and tightness of the refractory brick combined with the high temperature in the later period and the lining of the kiln. In the construction process of refractory materials, what details should be paid attention to when using refractory mortar can not be ignored. Rongsheng’s high-quality refractory bricks and supporting refractory mortar of the same material are used.

                          RS High Quality Refractory Mortar
                          RS High-Quality Refractory Mortar

                          Get Free Quote

                            Free Quote

                            Your Name (required)


                            Your Email (required)

                            Your Phone

                            Required Products (required)

                            Enquiry Information

                            Details to be Noted When Using Refractory Mortar

                            When using refractory mortar, it needs to be paid attention: The performance of the refractory mortars used for building refractory bricks should be compatible with the physical and chemical properties of the refractory bricks used. The types and indicators of refractory mortars are determined by the material and temperature of the refractory bricks used in industrial kilns.

                            When the refractory mortars are used in combination with refractory bricks, the fineness of the refractory mortar must be kept above 160 mesh, otherwise, it will dry too quickly and the adhesion will not be strong. Before using refractory mortar, it is necessary to determine the viscosity of the refractory mortars and the amount of liquid added. (Water binding, phosphoric acid-binding, resin binding). The bonding time of refractory mortar must meet the construction requirements of refractory bricks. The bonding time of refractory mortar depends on the material, size and difficulty of construction of refractory bricks. Generally speaking, the bonding time is 1-1.5min. It will not dry too fast or too slow. Too slow to condense. Too fast refractory bricks and refractory bricks are not bonded together.

                            When the refractory mortars are prepared, choosing the water as the liquid, clean industrial water is used, and the PH value is between 6-7. Do not use industrial water containing harmful substances and oil stains. It is particularly worth reminding that when preparing refractory mortar in coastal areas, the water used must be strictly tested, and the concentration of chloride ions cannot be greater than 300mg/L. Springwater can not be used when constructing near a mountain. The PH value of spring water is 11, so it cannot be used.

                            Phosphoric acid is added to the refractory mortar during its preparation, and it must be carried out in strict accordance with the instructions of the refractory mortars manufacturer. The amount of phosphoric acid added should not be too much or too little, too thin, or too thick are not conducive to the bonding strength of refractory mortar.

                            There are many varieties of refractory mortars, and various varieties and brands can not be mixed. The best prepared refractory mortar on the day is best used on the same day, not used the next day. The rational use of refractory mortar is based on the material of the refractory brick and the temperature of the construction is closely combined.

                            RS Refractory Mortar Manufacturer
                            RS Refractory Mortar Manufacturer

                            Get Free Quote

                              Free Quote

                              Your Name (required)


                              Your Email (required)

                              Your Phone

                              Required Products (required)

                              Enquiry Information

                              Rongsheng Refractory Manufacturer

                              Rongsheng is an experienced refractory manufacturer. Rongsheng’s refractory products have been sold to more than 60 countries and regions around the world. Such as Malaysia, South Africa, India, Indonesia, Vietnam, Pakistan, Netherlands, Kuwait, Kenya, Russia, United States, etc. Rongsheng also has production lines for refractory bricks and refractory castables. Advanced production equipment and experienced technical team escort our refractory products. For more information about Rongsheng refractory bricks and refractory castables, please contact us. We will provide you with high-quality refractory service.

                                Get Free Quote

                                Your Name (required)

                                Your Email (required)

                                Your Phone

                                Required Products (required)

                                Enquiry Information

                                aluminabricks 0 Comments