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Sand Casting Parts Series 4
Cast from ASTM A532 Grade IIIB (abrasion-resistant ductile iron) and AISI 4340 steel, these parts feature a unique microstructure that balances impact absorption (≥35J) and wear resistance (HRC 50-55), ideal for mining, construction, and recycling industries.
Dual-Performance Material Design
Abrasion-Impact Balance:
Ductile iron (Grade IIIB): Carbide-reinforced matrix with 15% elongation, resisting impact from falling rocks (energy absorption ≥50J, ASTM A532).
4340 steel (quenched & tempered): Hardness HRC 52-55, wear loss ≤25mg/1000 cycles (ASTM G65 Method B), suitable for high-sliding-speed applications.
Casting & Heat Treatment
Low-Defect Casting: Low-pressure sand casting reduces porosity, with subsequent heat treatment (austempering for ductile iron, quenching for steel) optimizing hardness-toughness balance.
Surface Hardening: Optional induction hardening (depth 2-5mm) increases surface hardness to HRC 58-62, while maintaining ductile core for impact resistance.
Structural Robustness
Thick-Section Capability: Successfully casts parts with wall thickness 50-200mm, achieving uniform hardness throughout (hardness variation ≤5HRC, ASTM A955).
Fatigue Resistance: Endurance limit ≥300MPa (10⁷ cycles, R=-1), critical for components subjected to repeated impacts (e.g., crusher hammers).
Environmental Adaptability
Low-Temp Performance: Retains 80% impact toughness at -40°C (Charpy V-notch ≥28J), suitable for Arctic mining and construction equipment.
Corrosion Resistance: Optional chromium plating (15μm) for wet abrasion environments (e.g., dredging pumps, saltwater-resistant).
Mining Crushers:
Hammers, jaw plates, and cone mantles in primary crushers, reducing replacement frequency by 40% compared to standard manganese steel.
Construction Machinery:
Excavator bucket teeth and loader forks, withstanding impact from reinforced concrete and rocky terrain (SAE J1199 compliant).
Waste Recycling:
Shredder blades and screen panels for municipal solid waste processing, resisting wear from mixed materials (glass, metal, plastic).
Microstructure Optimization
Patented austempering process (US Patent 11,901,234) increases impact resistance by 25% without compromising wear performance, validated by field testing.
Non-Destructive Testing
100% ultrasonic testing (UT) for internal defects and magnetic particle inspection (MPI) for surface cracks, compliant with ISO 17636-2:2013.
Custom Impact Solutions
Engineering team performs drop-weight testing (ASTM E23) and offers material selection guidance, ensuring optimal part life for specific impact energies.
Rugged Packaging
Parts coated with anti-wear grease (NLGI Grade 2) and packed in impact-resistant crates (ISTA 3A certified), minimizing damage during transport to remote sites.
Cast from ASTM A532 Grade IIIB (abrasion-resistant ductile iron) and AISI 4340 steel, these parts feature a unique microstructure that balances impact absorption (≥35J) and wear resistance (HRC 50-55), ideal for mining, construction, and recycling industries.
Dual-Performance Material Design
Abrasion-Impact Balance:
Ductile iron (Grade IIIB): Carbide-reinforced matrix with 15% elongation, resisting impact from falling rocks (energy absorption ≥50J, ASTM A532).
4340 steel (quenched & tempered): Hardness HRC 52-55, wear loss ≤25mg/1000 cycles (ASTM G65 Method B), suitable for high-sliding-speed applications.
Casting & Heat Treatment
Low-Defect Casting: Low-pressure sand casting reduces porosity, with subsequent heat treatment (austempering for ductile iron, quenching for steel) optimizing hardness-toughness balance.
Surface Hardening: Optional induction hardening (depth 2-5mm) increases surface hardness to HRC 58-62, while maintaining ductile core for impact resistance.
Structural Robustness
Thick-Section Capability: Successfully casts parts with wall thickness 50-200mm, achieving uniform hardness throughout (hardness variation ≤5HRC, ASTM A955).
Fatigue Resistance: Endurance limit ≥300MPa (10⁷ cycles, R=-1), critical for components subjected to repeated impacts (e.g., crusher hammers).
Environmental Adaptability
Low-Temp Performance: Retains 80% impact toughness at -40°C (Charpy V-notch ≥28J), suitable for Arctic mining and construction equipment.
Corrosion Resistance: Optional chromium plating (15μm) for wet abrasion environments (e.g., dredging pumps, saltwater-resistant).
Mining Crushers:
Hammers, jaw plates, and cone mantles in primary crushers, reducing replacement frequency by 40% compared to standard manganese steel.
Construction Machinery:
Excavator bucket teeth and loader forks, withstanding impact from reinforced concrete and rocky terrain (SAE J1199 compliant).
Waste Recycling:
Shredder blades and screen panels for municipal solid waste processing, resisting wear from mixed materials (glass, metal, plastic).
Microstructure Optimization
Patented austempering process (US Patent 11,901,234) increases impact resistance by 25% without compromising wear performance, validated by field testing.
Non-Destructive Testing
100% ultrasonic testing (UT) for internal defects and magnetic particle inspection (MPI) for surface cracks, compliant with ISO 17636-2:2013.
Custom Impact Solutions
Engineering team performs drop-weight testing (ASTM E23) and offers material selection guidance, ensuring optimal part life for specific impact energies.
Rugged Packaging
Parts coated with anti-wear grease (NLGI Grade 2) and packed in impact-resistant crates (ISTA 3A certified), minimizing damage during transport to remote sites.
