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The XCMG original XE2000 thickened flat washer (part number: 318811361) is forged from aerospace-grade 40CrNiMoA alloy steel and treated with ultra-high frequency quenching, achieving a surface hardness of HRC50-55. It is specifically designed for ultra-high pressure connection points in mining equipment. Certified by both ISO 898-1 and DIN 125, its compressive strength exceeds 1600MPa, effectively preventing bolt preload decay and connection surface deformation, serving as the last line of defense for equipment structural safety under extreme working conditions.
🔥 Aerospace-Grade Metal Technology
• 40CrNiMoA ultra-high strength alloy (yield strength ≥1450MPa)
• Deep ion nitriding treatment (diffusion depth 0.3mm)
• Mirror-grade polishing (Ra≤0.4μm)
⚡ Structural Reinforcement Engineering
• 5mm thicker specification (3 times the thickness of standard parts)
• Double-sided nano-coating (friction coefficient stabilized at 0.12-0.15)
• Stress diffusion groove design (reduces contact surface compressive stress by 30%)
🛡️ Intelligent Protection System
• Laser etching torque-corresponding color ring (red/yellow/green three-color warning)
• Magnetic memory effect detection layer (traceable stress history)
• Integrated wear limit groove
🔬 Ultimate Precision Control
• CNC grinding (parallelism ≤ 0.005mm)
• 100% eddy current testing
• Metallographic report provided for each batch
🌍 Environmental Adaptability
• -60℃ low-temperature impact energy ≥ 100J
• Acid and alkali corrosion resistance (stable within pH 2-14 range)
• Electromagnetic interference resistance (EMC Class 4)
📊 Digital Traceability
• 3D microcode identification (microscope required)
• Blockchain quality assurance traceability system
• Supports AR installation guidance
Indicators: This product/Similar international brands
Compressive Strength (MPa): 1600/1100
Fatigue Life (cycles): 2 million/800,000
Anti-loosening effect: No loosening after 500,000 vibrations/Loosening after 150,000 cycles
Temperature Adaptability: -60~300℃/-40~200℃
❌ Bolt Breakage → Stress diffusion design reduces peak pressure by 30%
❌ Seal failure → Nanocoating maintains a constant coefficient of friction
❌ Electrochemical corrosion → Cathodic protection microcurrent layer
❌ Installation misalignment → AR-assisted positioning system

318810931 flange blocking plate
1 318811361 1 FLANGE BLOCKING PLATE
2 805139984 4 SCREW M12×60 GB/T70.1-2008
3 804411417 1 FLANGE SEALING
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