Henan Ankai New Materials Co.,Ltd-LSAK Feldspar’s Post

Uses of White Fused Alumina in Refractory White Fused Alumina is a high-performance refractory with excellent properties such as high temperature resistance, chemical corrosion resistance and wear resistance. It is widely used in high-temperature equipment and processes in metallurgy, chemical industry, building materials, electric power and other industries, and has important uses. 1. White Fused Alumina is widely used in the metallurgical industry. The metallurgical industry needs refractory materials to manufacture various high-temperature furnaces, such as blast furnaces, converters, electric furnaces, etc. White Fused Alumina has excellent high-temperature resistance, can withstand the harsh working conditions in high-temperature furnaces, and protect the furnace body from thermal and chemical corrosion. At the same time, White Fused Alumina also has good wear resistance, which can effectively extend the service life of the furnace body and improve production efficiency and product quality. 2. White Fused Alumina has important uses in the chemical industry. The chemical industry needs to carry out production processes under high temperature, high pressure and corrosive media, so refractory materials are needed as lining materials for reactors, pipelines and storage tanks. White Fused Alumina has excellent chemical corrosion resistance, can resist the erosion of corrosive media such as acid, alkali, and salt, and ensure the safe and reliable operation of production equipment. 3. White Fused Alumina is also widely used in the building materials industry. The building materials industry needs to use refractory materials to manufacture refractory bricks, thermal insulation materials and other products to meet the needs of high-temperature furnaces. White Fused Alumina not only has good high temperature resistance, but also has excellent thermal insulation performance, which can effectively reduce energy consumption and improve the quality of building materials products. 4. White Fused Alumina also has important applications in the power industry. The power industry needs to use refractory materials to manufacture high-temperature equipment such as coal-fired boilers and power station boilers. White Fused Alumina has good wear resistance and high temperature resistance, can withstand the high temperature and high pressure generated during the combustion process, and ensure the safe and stable operation of the boiler. White Fused Alumina has a wide range of applications, including metallurgy, chemical industry, building materials, power and other industries. Its application in these industries can protect equipment from high temperature, chemical corrosion and wear, and improve production efficiency and product quality. #whitefusedalumina #refractorygradewhitefusedalumina #refractorymaterial #wearresistance #hightemperatureresistance #chemicalcorrosionresistance #whitefusedaluminumoxide

American standard N08904 stainless steel pipe - https://lnkd.in/gM7mVAPU Balingsteel News: Before in-depth discussion of the American standard N08904 stainless steel pipe and its seamless pip Before in-depth discussion of the American standard N08904 stainless steel pipe and its seamless pipe, we first need to have a comprehensive understanding of its material characteristics, application fields, production processes and market status. Us standard N08904, also known as Super austenitic stainless steel, is a high-performance alloy material that occupies an important position in several industrial sectors for its excellent corrosion resistance and high temperature strength. American standard N08904 stainless steel pipe American standard N08904 stainless steel seamless pipe Chemical composition: Carbon ≤0.20, manganese: ≤2.0, Phosphorus: ≤0.040, sulfur: 0.030, Silicon: ≤1.0, Chromium: 19.0~23.0, nickel: 23.0~28.0, molybdenum: 4.0~5.0, Copper: 1.0~2.0, Mechanical properties: ≥490Mpa, yield strength: ≥215 ###Material characteristics The reason why N08904 stainless steel can stand out among many stainless steel materials is mainly due to its unique chemical composition and microstructure. The alloy contains a high proportion of nickel, chromium, molybdenum and a small amount of copper and nitrogen and other elements, the synergistic effect of these elements gives N08904 excellent corrosion resistance, especially in highly corrosive media containing chloride ions, sulfuric acid, phosphoric acid and so on. In addition, it also has good resistance to stress corrosion cracking and pitting, and can maintain stable performance even in high temperature environments. ### Application field Due to the excellent properties of N08904 stainless steel, it is widely used in a number of industries with extremely demanding material requirements. In the field of chemical industry, N08904 stainless steel pipe has become an ideal choice for handling corrosive media such as strong acid and alkali, such as sulfuric acid plants, phosphate fertilizer plants, seawater desalination plants, etc. In the oil and gas industry, the material is used in oil and gas extraction, transportation and processing equipment to effectively resist the erosion of corrosive gases such as hydrogen sulfide and carbon dioxide. In addition, in the power, pharmaceutical, paper, environmental protection and other industries, N08904 stainless steel seamless pipe also plays an irreplaceable role in ensuring long-term stable operation of equipment and reducing maintenance costs. ### Production process American standard N08904 stainless steel pipe and seamless pipe production process is complex and fine, involving raw material preparation, melting, casting, hot rolling, cold rolling, heat treatment, pickling, polishing and other links. Among them, the melting process needs to strictly control the ratio of alloying elements an

Magnesia thermal insulation castable is a heat-insulating refractory castable prepared with magnesia granules as aggregate and magnesia fine powder as powder. It has the characteristics of high refractoriness, low thermal conductivity, and resistance to alkaline metal and slag erosion. It can be widely used in high-temperature thermal equipment such as metallurgical industry, petrochemical industry, and ceramic furnace lining. Silicon carbide composite refractory castables are made of corundum (electric fusion, sintering), plate alumina, alumina clinker and SiC as the main raw materials, and are formulated with binders such as activated alumina and silicon powder. It has the characteristics of high mechanical strength, high thermal conductivity, good thermal shock resistance and wear resistance, alkali corrosion resistance, good slag resistance and oxidation resistance, and strong resistance to partially molten metal. Corundum castable is a refractory castable prepared with corundum as aggregate and powder plus some binders. It has higher mechanical strength and abrasion resistance than high-aluminum refractory castables and mullite refractory castables, but its thermal shock resistance is slightly worse.

High Thermal shock Chrome Corundum Brick We would like to introduce Rongsheng Refractory's independently developed star product - High Thermal Shock Chrome Corundum Brick. This product not only exhibits excellent corrosion resistance but also outstanding performance in thermal shock stability. It's an ideal choice for #nonferrous metal smelting, industrial hazardous #wastetreatment kilns, #coalchemical kilns and other types of kilns with harsh working conditions. First, let's take a look at the #functions of this kind of brick. It is a high-grade refractory product carefully formulated using high-quality corundum and fused Cr2O3 as the main raw materials. The color of the brick varies with the Cr2O3 content. When the Cr2O3 content is less than 8%, the brick appears light red; between 8-15%, the color changes to pink; at 15-30%, it appears light green; while at 30-80%, it ranges from dark green to blackish green; and when the content exceeds 80%, it appears black. So,regardless of the chromium content, Rongsheng can customize based on your requirements. Next, let's discuss the unique #advantages of it. ✔ High temperature resistance and corrosion resistance: The raw material we use, Cr2O3, is no ordinary material! It's one of the best substances in conventional refractory materials for corrosion resistance, with a melting point of up to 2435°C! Therefore, it made from Cr2O3 also possesses excellent high-temperature corrosion resistance. ✔ Thermal shock stability: Our Brick can withstand over 30 cycles of water quenching thermal shock testing at 1100°C, demonstrating outstanding thermal shock stability. ✔ Ideal choice: It is an ideal choice for kilns with harsh working conditions and frequent start and stop, such as non-ferrous metal smelting, industrial hazardous waste treatment kilns and coal chemical kilns. #Value Using conventional chrome corundum bricks in kilns with harsh smelting conditions and frequent startups and shutdowns may lead to cracking, spalling, and other issues due to severe temperature fluctuations. But choosing our High Thermal Shock Chrome Corundum Brick can help you solve these troubles: #Durability: Thanks to its excellent high-temperature resistance, corrosion resistance, and thermal shock stability, this kind of brick of ours can help customers reduce procurement and maintenance costs. #Hasslefree: Stable performance ensures smoother kiln operation, reducing downtime and maintenance costs, significantly enhancing production efficiency. #Safety: It can adapt to various harsh working environments, reducing the occurrence of unexpected failures and providing you with greater assurance. Alright, that's all for today's introduction. If you're looking for refractory materials that can perform stably under extreme conditions, Rongsheng Refractory's High Thermal Shock Chrome Corundum Brick is definitely an excellent choice. If you have any questions or want to know more details, remember to leave a comment!

1. **Metakaolin**: - **Composition**: Metakaolin is a dehydroxylated form of the clay mineral kaolinite. - **Hydraulic Properties**: Metakaolin is highly pozzolanic and reacts with calcium hydroxide (a byproduct of cement hydration) to form additional calcium silicate hydrate (C-S-H), which enhances the strength and density of concrete. - **Benefits**: Improved compressive strength, reduced porosity, increased durability, and reduced efflorescence. 2. **GGBS (Ground Granulated Blast-furnace Slag)**: - **Composition**: GGBS is a byproduct of iron production in blast furnaces, composed mainly of silicates and aluminosilicates of calcium. - **Hydraulic Properties**: GGBS has latent hydraulic properties, which means it requires an activator (like calcium hydroxide from cement) to react and form C-S-H. It enhances the long-term strength and durability of concrete. - **Benefits**: Improved long-term strength, reduced permeability, enhanced resistance to sulfate and chloride attack, and reduced heat of hydration. 3. **PFA (Pulverized Fuel Ash or Fly Ash)**: - **Composition**: Fly ash is a byproduct of coal combustion in power plants, primarily composed of silica, alumina, and iron oxides. - **Hydraulic Properties**: Fly ash is pozzolanic and reacts with calcium hydroxide to form additional C-S-H, enhancing the concrete's strength and durability over time. - **Benefits**: Improved workability, reduced water demand, increased long-term strength, enhanced resistance to alkali-silica reaction (ASR), and reduced heat of hydration. 4. **Microsilica (Silica Fume)**: - **Composition**: Silica fume is a byproduct of silicon and ferrosilicon alloy production, composed of very fine particles of amorphous silicon dioxide. - **Hydraulic Properties**: Microsilica is highly pozzolanic and reacts with calcium hydroxide to form additional C-S-H, significantly increasing the density and strength of the concrete matrix. - **Benefits**: Dramatically increased compressive and tensile strength, reduced permeability, improved resistance to chemical attack, and reduced bleeding and segregation. **Comparison to Cement**: - **Cement Composition**: Portland cement is composed mainly of calcium silicates, aluminates, and ferrites that react with water to form C-S-H and calcium hydroxide. - **Hydraulic Properties**: Portland cement hydrates and hardens by forming C-S-H, which is responsible for the strength and durability of concrete. However, the presence of calcium hydroxide can be a weakness as it is less durable and more susceptible to chemical attack. - **Performance**: Pure Portland cement can have higher initial strength but may not match the long-term durability and specific property enhancements provided by SCMs. **Summary**: - **Strength**: SCMs can enhance long-term strength compared to cement alone, with microsilica and metakaolin providing significant early and long-term strength improvements.

In ladle refining after steel melting, proper slag formation is crucial to maintain steel quality and ensure optimal refining. The slag acts as a medium for removing impurities, controlling the temperature, and ensuring the desired chemical composition in the steel. Here’s the best way to ensure proper slag formation in a Ladle Refining Ladle (LRL): 1. Choose Appropriate Slag Forming Agents: The composition of the slag should be adjusted to suit the specific steel grade being produced. Typical slag forming agents include: Lime (CaO): It helps in removing sulfur and phosphorus and controls the slag viscosity. Dolomite (CaMg(CO₃)₂): Reduces the risk of refractory wear and helps stabilize the slag. Silica (SiO₂): Helps to remove impurities such as alumina (Al₂O₃). Fluorspar (CaF₂): Reduces the melting point of the slag and improves fluidity, which helps in impurity removal. 2. Optimal Slag Composition: The ideal slag composition will depend on the specific refining process and the type of steel being produced. However, the following components are typically desired: CaO/SiO₂ Ratio: This should generally be around 2–4. A higher ratio promotes deoxidation and sulfur removal. Basicity: Basic slags (with high CaO content) are usually preferred as they promote the removal of acidic impurities like phosphorus. Viscosity: The slag should have an optimal viscosity to allow for efficient mixing and impurity removal while avoiding excessive foaming or solidification. 3. Control Temperature and Slag Volume: Maintain the slag temperature within a suitable range, typically around 1600°C to 1700°C, which ensures the slag remains molten and can interact effectively with the molten steel. The slag volume should be sufficient to cover the steel to prevent oxidation but not excessively large to cause unnecessary heat losses. 4. Ladle Refining Practices: Deoxidation: After the steel is melted, oxygen is typically blown into the ladle to remove dissolved gases like oxygen and carbon. This promotes the formation of slag by converting impurities into oxides. Stirring or Mechanical Mixing: Mechanical stirring or gas injection (e.g., argon or nitrogen) into the ladle can help in proper slag formation and promote uniform mixing. Foaming Slag: The use of carbon sources (such as anthracite or graphite) can help form a foamy slag that provides insulation and prevents re-oxidation of the steel during the refining process. 5. Monitoring Slag Condition: Regularly monitor the slag properties during the refining process (temperature, chemistry, and viscosity) to ensure it remains within the desired range. Adjust the slag composition as needed based on the observed steel chemistry and refining goals. By following these guidelines, we can ensure the formation of a proper slag layer that will effectively perform the tasks of refining, impurity removal, and temperature maintenance during the ladle refining process. #steel

American standard TP304 stainless steel pipe - https://lnkd.in/gfUSW39S Balingsteel News: Before exploring the TP304 stainless steel pipe and the TP304 seamless stainless steel pipe in depth Before exploring the TP304 stainless steel pipe and the TP304 seamless stainless steel pipe in depth, we first need to understand the unique position of these two pipes in materials science, industrial applications, and market needs. TP304, as a classic in the stainless steel series, its full name 06Cr19Ni10 or SUS304, is a kind of austenitic stainless steel widely used in many fields. It not only has excellent corrosion resistance, but also has good processability, weldability and formability, therefore, in the chemical, petroleum, food, medical, construction and other industries, TP304 stainless steel material plays a pivotal role. Common implementation standards: ASTM A312,ASTMA213,ASMESA312,ASME SA213 Chemical composition of TP304 stainless steel pipe (%) : carbon C: ≤0.08, Silicon Si ≤1.00, Manganese Mn ≤2.00, Phosphorus p: ≤0.045, sulfur S: ≤0.030, nickel Ni 8.00-11.00, Chromium Cr: 18.00-20.00 TP304 stainless steel pipe mechanical properties: tensile strength ≥520Mpa, yield strength ≥210Mpa, elongation (heat treatment state) ≥35%, elongation (non-heat treatment state) ≥25% American standard TP304 stainless steel pipe production process: cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, hot-rolled seamless steel pipe The basic characteristics of TP304 stainless steel pipe The American standard TP304 stainless steel pipe follows the standards formulated by the American Society for Materials and Testing (ASTM), and its chemical composition is strictly controlled within a certain range to ensure the optimal mechanical properties and corrosion resistance of the pipe. Specifically, TP304 stainless steel contains about 18% chromium (Cr) and 8% nickel (Ni), and these two elements work together to form a dense chromium oxide film that effectively resizes the erosion of most oxidizing acids, alkali solutions and a variety of organic and inorganic compounds. In addition, the material also has high tensile strength, yield strength and elongation, which provides a reliable guarantee for the use of various complex working conditions. The advantages and application of TP304 stainless steel seamless pipe TP304 stainless steel seamless pipe is based on TP304 stainless steel pipe, processed by hot rolling, cold rolling or cold drawing processes, without welding, thus ensuring the integrity and seamlessness of the pipe. This seamless structure not only enhances the bearing capacity of the pipe, but also reduces the risk of stress concentration and corrosion that may be caused by welding, further improving the service life and safety performance of the pipe. In the chemical industry, TP304 stainless steel seamless pipe is widely used in the transport of

Phosphorus is a common impurity in steelmaking, and its control is crucial in the production of TMT bars, as it directly affects the mechanical properties of the steel. Excessive phosphorus in steel can make the bars brittle and susceptible to cracking, especially at low temperatures, which can compromise their strength and ductility. Here’s a more detailed breakdown of how phosphorus is controlled during the manufacturing of TMT bars: 1. Raw Material Selection The process starts with the selection of high-quality raw materials that are low in phosphorus content. The major sources of phosphorus in steel production come from: Iron Ore - Naturally occurring iron ores often contain phosphorus as an impurity. Choosing iron ore with a low phosphorus content (less than 0.1%) is essential. Scrap Metal - If scrap steel is used as part of the charge in the electric arc furnace, it should be low in phosphorus. Scrap sorting and segregation based on chemical composition are essential to avoid introducing excessive phosphorus into the melt. 2. Blast Furnace Operation Phosphorus enters the steel primarily from the iron ore or the scrap used in the furnace. Once the raw materials are loaded into the blast furnace, phosphorus begins to dissolve in the molten iron. To control phosphorus at this stage: Phosphorus is removed in the blast furnace by creating a basic slag that absorbs phosphorus. The slag’s basicity is maintained by adding **fluxes** like limestone (CaCO₃) or lime (CaO), which reacts with silica and other impurities to form a basic, liquid slag. Phosphorus in the molten iron reacts with the basic oxides in the slag and is transferred into the slag. Slag Removal - After phosphorus has been absorbed by the slag, it is essential to remove the slag quickly and efficiently to prevent the reversion of phosphorus into the molten steel. 3. Secondary Steel Refining After the initial steelmaking process, secondary refining may be necessary to further control phosphorus content, especially for high-quality steel required in TMT bars. 4. Thermo-Mechanical Treatment (TMT) Process Controlled Rolling: The rolling process during TMT manufacturing is performed under controlled temperature conditions. This ensures that the steel has the desired balance between strength and ductility, even if phosphorus levels are within the standard limits. Rapid Quenching: After rolling, the steel bars are rapidly cooled using water quenching. This rapid cooling hardens the outer surface while leaving the core soft. Controlling this process ensures the bars have good strength while maintaining ductility 5. Phosphorus Monitoring and Testing - Regular testing of steel during and after production is important to ensure that the phosphorus content remains within the acceptable limits. Advanced spectroscopy and chemical analysis techniques are used to monitor the composition of both raw materials and final products to detect and control phosphorus.

It is the equipment is being erected and planning the same for commissioning.

Chemical-physical transformations...!! Because rotary kiln temperatures range from 300ºC to 1450ºC, there are only two ways to know what is going on inside the kiln working; ⏩ laboratory tests,  ⏯️ clinker sampling in the kiln in operation (hot kiln) or material and coating sampling every time there is a shutdown (cold kiln). ✅ In this sense, the QC & QA department plays a fundamental role in cement production. In the past, cement quality control was based on checking and mechanical strength tests. Then, scientific research and the use of technology allowed for standardization and the creation of production regulations. Take a look at the infographic...!! In the schematic diagram, you will see all the stages of the clinkerization process inside the rotary kiln. During the transformation of the crude mixture into clinker, we see two main phases: the solid phase and the liquid phase. It's the two calcium silicate minerals, C3S and C2S, responsible for strength development, long-term structural and durability, and properties of Portland cement. However, the reaction between CaO (lime from limestone) and SiO2 (silica from sand) is difficult to achieve, even at high firing temperatures. The chemical combination is enhanced when small quantities of alumina and iron oxide are present (typically 5% Al2O3 and 3% Fe2O3), as this helps form a molten flux through which the lime and silica can partially dissolve and then react to yield C3S and C2S. The balance of the chemical composition is essential for the production and energy performance of the kiln and cement quality. ICC specialists can help the cement plant. The Pyro process Technical-Operational Assessment Program by ICC, optimizes the kiln operation and clinker quality, achieving operational stability. The partners supply OEM parts, products, services, technologies, and solutions to improve cement quality, optimize thermal and electrical energy consumption, and control air pollution. For more information on ICC and the cement history, click on the links and contact us. https://lnkd.in/dfz49RFP - 𝗜𝗖𝗖 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝘁𝘀 https://lnkd.in/eHzm8g_W - 𝗖𝗲𝗺𝗲𝗻𝘁 𝗕𝗼𝗼𝗸 Use the coupon: 𝗜𝗖𝗖𝗔𝗡𝗜𝗩𝗘𝗥𝗦𝗔𝗥𝗬 -𝗨𝗦𝗗𝟭𝟬 #INfluenCement ICC Independent Cement Consultants ICC Independent Cement Consultants (Brazil/LATAM) #cement #technology #innovation #networking #synergy #knowledge #experience #production #share #comment #like #follow #cemento #cimento #ciment #zement #worldwide #grinding #process #optimization #strategy #operation #maintenance #performance #building #partnership #spareparts #management #clinker #kiln #safety #combustion #cooler #sustainability #engineering #supply #productivity #mechanical #training #chemical #research #marketing #services #environmental #development #brand #sponsorship #team #energy #linkedin #project #thermalenergy #posts #socialmedia #products #manufacturing #quality #startup #video #professional #consultants #work #growth