Новости Керуи

Reading Navigation 1. Understanding Fire Brick Size Classifications Fire bricks, also known as refractory bricks, are categorized by size based on three primary factors: 2. Standard Fire Brick Sizes & Applications Below are the most widely used fire brick sizes across industries: Type Dimensions (L x W x H) Common Applications Standard Straight 9″ x 4.5″ x 2.5″ Kilns, Furnaces, Fireplaces Split Brick 9″ x 4.5″ x 1.25″ Thin-wall insulation layers Arch Brick (Series) 9″ x 4.5″ x 2.5″-3.5″ Rotary kiln roofs, domes Wedge Brick 9″ x 4.5″ x 1.5″-3″ Circular furnace construction Insulating Brick 12″ x 6″ x 3″ High-efficiency boilers Pro Tip: Kerui Refractory offers precision-toleranced (±0.5mm) standard bricks, ensuring seamless installation for complex masonry projects. 3. Custom Fire Brick Sizing Solutions For specialized industrial requirements, custom fire brick sizes deliver: Kerui Refractory’s Made-to-Order Service includes: 4. FAQs About Fire Brick Sizes Q: How do I choose the correct fire brick size for a residential wood stove?A: Standard 9″x4.5″x2.5″ bricks work for most stoves. Measure your existing firebox and allow 1/8″ gaps for thermal expansion. Kerui provides free sizing. Q: Can fire brick dimensions affect heat retention?A: Yes. Thicker bricks (3″+) improve insulation but reduce chamber space. Our…

Reading Navigation 1. Understanding Refractory Brick Size Classification Refractory bricks for steel ladles are categorized based on geometry, application, and material composition. Proper sizing ensures thermal stability, mechanical strength, and resistance to slag corrosion. Below are the primary classification methods: A. Geometric Classification B. Application-Based Classification Application Key Size Considerations Ladle Lining Thickness (65-150 mm) for thermal insulation Slag Zone Denser, thicker bricks (100-120 mm) Pouring Nozzles Smaller, precision-cut dimensions C. Material-Driven Sizing 2. Common Refractory Brick Sizes for Steel Ladles Below is a breakdown of industry-standard refractory brick sizes: Brick Type Dimensions (L x W x H, mm) Applications Standard Straight 230 x 114 x 65 General lining, sidewalls Arch Brick (Tapered) 230 x 114 x 65/55 Ladle roof, curved sections Slag Line Brick 250 x 124 x 75 High-corrosion zones Nozzle Block Custom (e.g., 180 x 90 x 50) Pouring systems Key Trends: 3. FAQs About Refractory Brick Sizes Q1: How do I choose the right refractory brick size for my steel ladle?A: Consider operating temperature, ladle geometry, and slag aggressiveness. For example, thicker bricks (100-150 mm) are ideal for high-wear zones like slag lines. Kerui Refractory offers free technical consultations to match brick sizes to your specific…

‌Reading Navigation‌ Introduction to Steel Ladle Refractory Lining Steel ladle refractory lining form the protective barrier between molten steel (1,600–1,700°C) and the ladle structure. These linings must withstand extreme thermal shocks, chemical corrosion, and mechanical abrasion while maintaining structural integrity. With global steel production exceeding 1.95 billion metric tons annually, the demand for high-performance steel ladle refractory lining solutions has never been greater. Types of Steel Ladle Refractory Lining 1. Magnesia Carbon (MgO-C) Lining 2. Alumina Magnesia Carbon (AMC) Lining 3. Zirconia-Based Lining Material Type Thickness Range (mm) Installation Method Avg. Lifespan (Heats) Magnesia Carbon Bricks 150–300 Dry Gunning 80–120 Alumina Magnesia Carbon Castables 200–400 Vibration Casting 100–150 ZrO₂ Preforms 75–150 Mechanical Fastening 150–200 Key Product Parameters & Performance Metrics Critical Quality Indicators: Kerui Refractory’s proprietary ‌KR-9X™ formulation‌ achieves: Critical Applications in Modern Steelmaking 1. Secondary Metallurgy Stations 2. Special Steel Production 3. Continuous Casting Systems 5 Essential FAQs About Steel Ladle Refractory Linings ‌Q1: How often should steel ladle refractory lining be replaced?‌A: Replacement cycles vary from 50–200 heats depending on: ‌Q2: What causes premature failure in ladle linings?‌A: Primary failure mechanisms include: ‌Q3: How to select the optimal lining thickness?‌A: Use this formula:T(min) = (Q × t)/(k ×…

‌Reading Navigation‌ What Are Blast Furnace Refractories? Blast furnace refractories are specialized heat-resistant materials engineered to withstand extreme temperatures (up to 2,000°C), chemical corrosion, and mechanical wear in iron and steel production. These materials form the protective lining of blast furnaces, ensuring operational efficiency, safety, and longevity. Types of Blast Furnace Refractories 1. Silica-Based Refractories 2. Alumina-Silica Refractories 3. Silicon Carbide Refractories 4. Magnesia-Based Refractories 5. Carbon-Composite Refractories Key Product Parameters & Performance Metrics Parameter Silica Alumina-Silica Silicon Carbide Magnesia Carbon-Composite Thermal Conductivity 1.2 1.8 15 5.5 40 Compressive Strength 35 MPa 50 MPa 90 MPa 75 MPa 25 MPa Porosity (%) 18 12 8 10 5 Slag Resistance Medium High Very High Excellent Moderate Critical Applications in Modern Steelmaking FAQs About Blast Furnace Refractories ‌Q1: What factors reduce blast furnace refractory lifespan?‌A: Alkali/vapor corrosion, thermal cycling, and slag/iron erosion are primary culprits. Kerui Refractory’s pre-fired blocks and nano-coatings mitigate these issues through enhanced density (≤12% porosity) and micro-crack resistance. ‌Q2: How to choose between silica vs. alumina refractories?‌A: Silica suits acidic slag environments (FeO-rich), while alumina excels in basic slag (CaO/MgO) conditions. Kerui’s engineers provide free slag analysis to match materials to your furnace chemistry. ‌Q3: Can blast furnace…

Table of Contents What Are Fire Bricks? Fire bricks, or refractory bricks, are specialized materials designed to withstand extreme temperatures (up to 3,000°F/1,650°C) while maintaining structural integrity. They are essential for industrial furnaces, fireplaces, kilns, and pizza ovens. Types of Fire Bricks 1. High-Alumina Fire Bricks 2. Silica Fire Bricks 3. Insulating Fire Bricks 4. Magnesia Fire Bricks Key Product Parameters Parameter High-Alumina Silica Insulating Magnesia Density (g/cm³) 2.5–3.0 1.8–2.1 0.6–1.0 2.8–3.2 Thermal Conductivity (W/m·K) 1.2–1.8 1.5–2.0 0.3–0.7 3.0–4.5 Compressive Strength (MPa) 35–50 20–30 5–15 40–60 ‌Average Price of Fire Bricks‌ $2.5–$6.0/pc $1.8–$4.0/pc $3.5–$8.0/pc $7.0–$15.0/pc Price of Fire Bricks: Market Analysis The ‌price of fire bricks‌ varies based on: Regional Price Comparison (Per Piece) Region High-Alumina Insulating North America $3.0–$6.5 $4.0–$8.5 Europe $3.2–$7.0 $4.5–$9.0 Asia $2.0–$5.0 $3.0–$6.5 ‌Pro Tip‌: Kerui Refractory offers ‌volume discounts‌ and FOB pricing for orders exceeding 500 units, with ISO 9001-certified quality control. How to Choose the Right Fire Bricks FAQs About Price of Fire Bricks Q1: What factors most affect the price of fire bricks? ‌A‌: Raw material quality (e.g., alumina purity), production method (hand-molded vs. machine-pressed), and shipping distance. Kerui Refractory’s automated production cuts labor costs by 22%, passing savings to buyers. Q2: Are…

Table of Contents What is Fire Clay Refractory? Fire clay refractory refers to heat-resistant materials composed primarily of alumina (Al₂O₃) and silica (SiO₂), engineered to withstand extreme temperatures (up to 1,750°C/3,182°F) while resisting thermal shock, chemical corrosion, and mechanical wear. These materials form the backbone of industries like steelmaking, glass production, and power generation. With over two decades of expertise, ‌Kerui Refractory‌ has pioneered advanced formulations that outperform standard fire clay products in longevity and energy efficiency. Types of Fire Clay Refractory Materials 1. ‌Standard Fire Clay Bricks‌ 2. ‌High Alumina Bricks‌ 3. ‌Insulating Fire Clay Bricks‌ 4. ‌Phosphate-Bonded Fire Clay Bricks‌ Key Specifications and Performance Parameters Comparative Analysis of Fire Clay Refractory Types Property Standard Bricks High Alumina Insulating Phosphate-Bonded Max Service Temp (°C) 1,450 1,750 1,200 1,600 Bulk Density (g/cm³) 2.2–2.5 2.6–3.0 0.7–1.2 2.4–2.7 Thermal Conductivity 1.5 2.0 0.5 1.8 Reheat Shrinkage (%) ±0.4 ±0.2 ±1.5 ±0.3 Acid Resistance (Rating) Good Excellent Fair Excellent Critical Quality Metrics: Top Industrial Applications 1. ‌Iron & Steel Industry‌ 2. ‌Glass Manufacturing‌ 3. ‌Power Generation‌ 4. ‌Petrochemicals‌ FAQs: Expert Answers to Critical Questions ‌Q: How does fire clay refractory compare to castable refractories?‌A: Fire clay bricks offer better dimensional stability for large…

🔍 ‌Reading Navigation‌1. The Alchemy of Extreme Performance2. HAC Family Tree: 6 Specialized Variants Explained3. Battlefield Applications: Where HAC Becomes Indispensable4. Procurement Masterclass: Beyond Price Per Bag5. Technical Synergy: Making HAC Work for You6. The Future Frontier: Emerging InnovationsFrom molten metal foundries to deep-sea oil rigs – High Aluminum Cement’s domain of excellence 1. The Alchemy of Extreme Performance 1.1 Molecular Architecture That Defies Convention High Aluminum Cement (HAC), chemically known as ‌Calcium Aluminate Cement (CAC)‌, derives its power from a radical departure from Portland cement’s calcium silicate chemistry: ‌Core Composition Breakdown‌ Component HAC Range Portland Cement Performance Impact Al₂O₃ 40-80% 5-10% High early strength CaO 20-40% 60-67% Rapid hydration SiO₂ <6% 17-25% Reduced alkali-silica reaction Fe₂O₃ 0.5-2.5% 1-5% Color control ‌Hydration Reaction Secrets‌HAC’s rapid strength development stems from its unique hydration process: CA (CaO·Al₂O₃) + 10H → CAH₁₀ (at <20°C)C₃A (3CaO·Al₂O₃) + 21H → C₃AH₆ + AH₃ (at >30°C) Pro Tip: Controlled curing below 25°C preserves the metastable CAH₁₀ phase for optimal durability 1.2 The Great Tradeoff: Understanding Conversion Reactions All High Alumina Cement (HAC) formulations undergo inevitable crystalline phase changes over time: ‌Mitigation Strategies‌ 2. High Aluminum Cement Family Tree: 6 Specialized Variants Explained 2.1 Standard Grades Class…

Article Navigation 1. The Science Behind Alumina Silica Bricks Alumina silica bricks are the cornerstone of modern refractory technology, blending aluminum oxide (Al₂O₃) and silicon dioxide (SiO₂) to create materials that thrive in temperatures up to 1,750°C (3,182°F). Kerui’s engineered bricks deliver: 2. Types & Performance Showdown 2.1 The Alumina Silica Elite Type Al₂O₃ Content Superpower Max Temp Standard Fireclay 25-35% Cost-effective thermal barrier 1,300°C High-Alumina 45-60% Extreme heat warrior 1,600°C Super Duty 60-72% Heavy industry champion 1,750°C Insulating 30-40% Energy-saving specialist 1,200°C Kerui’s KR-AS65 Super Duty Brick boasts 65% Al₂O₃ content with thermal shock resistance >25 cycles – outperforming competitors by 30%. 3. Industry-Specific Winning Formulas 3.1 Steel Industry Game Changers 3.2 Glass Manufacturing Masters 3.3 Petrochemical Protectors 4. Smart Buyer’s Blueprint 4.1 Cost vs. Performance Matrix Grade Price Range (FOB) Lifespan* Best For Standard Fireclay $200-400/ton 6-12 months Backup linings, repairs High-Alumina $400-700/ton 12-24 months Critical hot zones Kerui KR-AS65 $700-1,200/ton 24-36 months Extreme conditions *Compared to conventional refractory solutions 4.2 Procurement Pro Tips 5. Why Kerui Leads the Revolution 5.1 Technological Edge 5.2 Global Success Stories 5.3 Customer-Centric Guarantees Ready to Upgrade Your Thermal Defense System? Performance data based on ASTM testing standards. Actual results may vary…

Article Navigation 1. What Makes Castable Cement a Supermaterial? Refractory castable cement is a high-temperature concrete engineered to withstand extreme heat (up to 1,800°C/3,272°F) while maintaining structural integrity. Composed of aggregates (corundum, bauxite), binders (calcium aluminate), and additives, it combines rapid installation with unmatched versatility. Kerui’s castables deliver: 2. Types & Their Secret Weapons 2.1 The Castable Avengers Type Key Features Max Temp Star Application Low-Cement Castables Al₂O₃ 70–85%, porosity <15% 1,650°C Steel ladle linings, blast furnaces Self-Flowing Castables Zero vibration, fills 1mm gaps 1,600°C Complex preheater cyclones SiC-Enhanced Castables SiC 20–30%, abrasion resistance 3x steel 1,500°C Cement kiln transition zones Insulating Castables Thermal conductivity 0.3–0.8 W/m·K 1,200°C Energy-efficient boiler backs Kerui’s KR-SF90 Self-Flow Castable reduces installation time by 70% vs. traditional methods. 3. Industry-Specific Power Moves 3.1 Steel & Metallurgy 3.2 Cement & Lime 3.3 Petrochemical 4. Smart Buying Hacks for Maximum ROI 4.1 Price vs. Performance Breakdown Grade Price Range (FOB) Lifespan* Ideal For Standard (Al₂O₃ 60%) $150–400/ton 6–12 months Small furnaces, repairs Premium (Al₂O₃ 80%) $400–700/ton 12–24 months Steel ladles, kiln hot zones Kerui KR-LC85 $700–1,300/ton 18–30 months Heavy-industry critical zones *Compared to traditional firebricks 4.2 5-Step Procurement Strategy 5. Why Kerui Dominates the Arena 5.1 Innovation…

Article Navigation 1. What Are Refractory Castable Material? Refractory castable material are heat-resistant concrete superheroes—versatile, unshaped materials that harden into monolithic linings when mixed with water. Composed of aggregates (bauxite, corundum), binders (calcium aluminate), and additives, they thrive in temperatures up to 1,800°C (3,272°F). Kerui’s castables are engineered for: 2. Types & Superpowers 2.1 The Castable Avengers Type Key Ingredients Max Temp Signature Power Low-Cement Castables Al₂O₃ 60–80%, CaO 2–8% 1,650°C High strength, low porosity Insulating Castables Vermiculite, perlite 1,200°C Energy-saving thermal barrier SiC-Enhanced Castables SiC 15–30%, Al₂O₃ 50–70% 1,500°C Slash abrasion by 50% Self-Flow Castables Micro-powder aggregates 1,600°C Fill intricate molds effortlessly Kerui’s KR-LC85 Low-Cement Castable boasts Al₂O₃ ≥85% and CCS >100 MPa—perfect for extreme heat zones. 3. Industrial Game-Changers 3.1 Steel & Foundries 3.2 Cement & Lime Kilns 3.3 Petrochemical Titans 4. Pro Buyer’s Playbook 4.1 Price vs. Performance Castable Type Price Range (FOB) Lifespan (Months) ROI Boost* Standard (Al₂O₃ 60%) $300–600/ton 6–12 1.5x Premium (Al₂O₃ 80%) $600–900/ton 12–24 3x Kerui KR-SC35 (SiC 35%) $1,000–1,500/ton 24–36 5x *Compared to traditional firebrick linings 4.2 5-Step Buying Strategy 4.3 Installation Hacks 5. Why Kerui Refractory castable material Dominate 5.1 Innovation Edge 5.2 Global War Stories 5.3 Zero-Risk Guarantee Conclusion: Cast…

Introduction Castable orice are versatile unshaped materials used in furnaces, boilers, and kilns. Unlike pre-fired bricks, they offer installation flexibility and seamless lining. This guide explains price determinants, how to evaluate suppliers, and smart procurement strategies. Castable Price Breakdown 1. Material Composition Castable price vary significantly based on alumina (Al₂O₃) content and additives: Al₂O₃ Content Binder Type Typical Price Range (USD/ton) 40-50% Calcium Aluminate $300 – $600 60-70% Low-Cement $500 – $800 80-90% Ultra-Low Cement $1,100 – $1,600 ≥95% Pure Alumina $1,800+ Key Cost Drivers: 2. Performance Grade Property Standard Grade Premium Grade Max. Service Temp 1,400°C 1,800°C CCS (MPa) 35 80 Thermal Shock Resistance 10 cycles 50+ cycles Price Premium – +40-70% 3. Market Factors Supplier Selection Criteria Technical Capability Checklist ✅ Certifications: ISO 9001, ASTM C862 (mixing test)✅ Testing Reports: Provide 3rd-party verified data for: Reliability Indicators Green Flag Red Flag On-site technical support No batch testing records 24-month warranty <70% on-time delivery Procurement Guide Step-by-Step Process Packaging Shelf Life Shipping Cost Bulk (1-ton bags) 6 months $80/ton 25kg bags 12 months $120/ton FAQ Q: How to verify castable quality?A: Conduct three tests:1) Workability: Flow value ≥110%2) Drying behavior: Cracks ≤0.5mm after 110°C Q: Typical lead time? Why…

Article Navigation 1. Overview & Composition Magnesia spinel bricks are high-performance refractory materials composed of magnesia (MgO) and spinel (MgAl₂O₄), renowned for their exceptional thermal shock resistance and corrosion stability in aggressive alkaline environments. Kerui Refractory’s magnesia spinel bricks are engineered to deliver: 2. Key Performance Advantages 2.1 Technical Specifications Parameter Kerui MS-85 Industry Standard Test Method MgO Content 75–85% 70–80% XRF Analysis Al₂O₃ Content 8–15% 5–12% XRF Analysis Apparent Porosity 12–16% 15–20% ASTM C20 Cold Crushing Strength 80–150 MPa 50–100 MPa ASTM C133 Thermal Shock Resistance >30 cycles (1,100°C ΔT) 15–25 cycles ASTM C1171 Refractoriness Under Load 1,700°C 1,600–1,650°C ASTM C113 2.2 Comparative Benefits 3. Industrial Applications 3.1 Steel Industry 3.2 Cement Production 3.3 Non-Ferrous Metallurgy 4. Procurement Strategies 4.1 Cost & MOQ Overview Brick Grade Price Range (FOB) Min Order Quantity Bulk Discounts (>15 tons) Standard (MgO 75–80%) $1,200–2,000/ton 5 tons 5–10% Premium (MgO 80–85%) $2,500–3,800/ton 3 tons 8–12% Custom Formulations $3,000–5,000/ton 1 ton 10–15% 4.2 Supplier Selection Checklist 4.3 Installation & Maintenance 5. Why Choose Kerui? 5.1 Advanced Manufacturing 5.2 Global Service Excellence 5.3 Success Story A European cement plant using Kerui’s Magnesia spinel bricks in a 5,000 TPD kiln transition zone reported: Conclusion Magnesia spinel bricks…