Bronze casting

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Product Overview
Bronze Casting Service by Hansheng offers comprehensive solutions for producing high-quality bronze components. The service encompasses investment casting, sand casting, and lost foam casting, providing end-to-end support from technical consultation and mold making to precision machining and full-size quality inspection. These services cater to clients in heavy industry, shipbuilding, automotive, aerospace, and other demanding sectors.

Comprehensive Bronze Casting Process Options

• Lost-Wax Casting (Investment Casting): Ideal for producing bronze parts with complex internal and external structures, fine details, and exceptional surface finish.
  • Advantages: Extremely high precision, high design freedom, excellent surface finish.
  • Applications: Complex impellers, artistic sculptures, precision instrument housings, valves, and pump bodies.
  • Hansheng Solution: Mature lost-wax casting technology and quality control system, with in-house ultra-precision machining for final finishing.
• Sand Casting: Suitable for large parts with relatively simple structures or cost-sensitive requirements.
  • Advantages: High cost-effectiveness, wide size range, high material adaptability.
  • Applications: Large gear blanks, ship propellers, machine frames, pump housings, large bushings.
• Lost Foam Casting: Combines advantages of sand and lost-wax casting, adept at manufacturing parts with complex internal channels and structures.
  • Advantages: One-piece molding, good precision, simplified process.
  • Applications: Complex engine blocks, manifolds, valve bodies, and pump bodies.

Process Comparison & Selection Guide
Characteristics
Investment Casting | Sand Casting | Lost Foam Casting
Dimensional Accuracy | Highest | Good | Excellent
Surface Finish | Best | Fair | Good
Structural Complexity | Very High | Medium | Very High
Unit Cost | Relatively High | Lowest | Medium
Mold Cost | High | Low | Medium
Applicable Size | Small to Medium | Medium to Very Large | Medium to Large

Our "Casting+" Integrated Capabilities

• Ultra-Precision Machining: Standard tolerance for casting blanks is ±1mm; after machining, final part accuracy can reach ±0.002mm.
• ISO Grade 5 Gear Manufacturing: High-precision gear profiles can be machined directly onto bronze castings.
• One-stop Quality Control: All stages from casting to final inspection are monitored under a quality system, ensuring reliability and consistency.

Technical Specifications

• Casting Process: Lost-Wax Casting, Sand Casting, Lost Foam Casting, Gravity Casting
• Max Casting Size: 3800mm x 1500mm x 1200mm
• Casting Tolerance: Free Tolerance ±1mm / Specified Tolerance ±0.03mm
• Material Support: Tin Bronze, Aluminum Bronze, Phosphor Bronze, Silicon Bronze, and other brands
• Final Machining Accuracy: Up to ±0.002mm (Ultra-Precision Machining)
• Surface Roughness: Mirror finish with Ra less than 0.1μm achievable
• Drawing Formats Supported: STEP, IGS, XT, DWG, DXF, PDF

Process Flow

• Technical Consultation & Design: In-depth communication, drawing analysis, and process recommendation
• Mold Design & Manufacturing: Advanced CNC automated mold-making for high-precision molds
• Melting & Pouring: Strict adherence to material grade standards and precise temperature control
• Post-Processing & Cleaning: Sand removal, riser and gate cutting, sandblasting or shot blasting
• Precision Machining: Final dimensional and positional machining using advanced equipment
• Quality Inspection: 100% full-dimensional inspection with CMM and gear measuring instruments
• Packaging & Delivery: Secure, shockproof, and rustproof packaging for safe delivery

Application Areas

• Heavy Machinery and Equipment: Wear-resistant worm gears, bushings, bearings, slide blocks
• Marine and Marine Engineering: Seawater-resistant propellers, valves, pump bodies, pipe fittings
• Automotive and Transportation: High-strength synchronizer rings, bushings, connectors
• Aerospace: Lightweight, high-strength bushings and supports for landing gear systems and actuators
• Valves and Fluid Control: Complex valve bodies, seats, sealing rings

FAQ (Extract)

• Minimum Order Quantity (MOQ): Flexible, from single-piece prototypes to mass production
• Bronze Alloy Selection: Recommendations based on application, workload, environment, and budget
• Production Lead Time: Typically 3-6 weeks from mold making to sample delivery, depending on complexity and order size

Key Features / Technical Specifications

• Comprehensive bronze casting services: investment casting, sand casting, lost foam casting
• End-to-end process: consultation, mold making, machining, inspection
• Ultra-precision machining: up to ±0.002mm
• Material support: Tin Bronze, Aluminum Bronze, Phosphor Bronze, Silicon Bronze
• Max casting size: 3800mm x 1500mm x 1200mm
• Surface roughness: Ra < 0.1μm
• Applications: heavy industry, shipbuilding, automotive, aerospace, valves, fluid control