Complete Analysis of Mirror Polishing Machine Grades and Processes

I. Mirror Polishing Grade System (12-Level Classification)

Common Industrial Grade Standards:

• Basic Grade (8K): Ra 0.1-0.2μm (Household appliances/kitchenware)

• Precision Grade (12K): Ra 0.05-0.1μm (Medical devices)

• Ultra-Precision Grade (16K): Ra ≤0.05μm (Optical components/semiconductors)

Complete Grade Comparison Table:

II. Detailed Processes for Different Grades

8K Grade Process:
Process Flow:

Coarse grinding (240#) → Medium grinding (400#) → Fine polishing (800#) → Mirror polishing (1500#)  

Parameter Settings:

• Speed: 1200-1500 rpm

• Pressure: 0.3-0.5 MPa

• Consumables: Wool wheel + diamond paste

12K Grade Process:
Key Control Points:

• Constant-temperature polishing (25±2°C)

• Vibration control <0.001 mm

• Electrolyte with pH 7.2-7.6

16K Grade Process:
Special Requirements:

• Cleanroom environment (Class 100)

• Magnetorheological polishing technology

• Online atomic force microscopy (AFM) inspection

III. Core Process Equipment Comparison

IV. Key Maintenance Guidelines

Temperature Management:

• Cool down after 2 hours of continuous operation (≤40°C)

• Monitor with infrared thermal imaging

Polishing Wheel Maintenance:

• Clean daily with a copper wire brush

• Perform dynamic balancing weekly

Pressure Control System:

• Calibrate pressure sensors monthly

• Recommend using proportional valves (control accuracy ±0.01 MPa)

V. Advances in Process Technology

Hybrid Polishing Techniques:

• Electrochemical + Mechanical Polishing (ECMP)

• Laser-Assisted Polishing (LAP)

Intelligent Control Systems:

# Example of adaptive polishing algorithm  
def adaptive_polishing(surface_scan):  
    while surface_scan.Ra > target:  
        adjust_pressure(calc_optimal(surface_scan))  
        adjust_speed(surface_scan.hardness)  
        surface_scan = update_scan()  

Eco-Friendly Processes:

• Dry polishing (reduces waste liquid)

• Nano-structured abrasives (3x lifespan improvement)

Special Notes for Achieving 16K Grade:

• Environmental control (23±1°C, 45±5% RH)

• Quantum-level flattening tools

• Sub-micron online measurement systems

Recommendation:
Select the appropriate grade based on product requirements to avoid unnecessary cost increases from over-polishing. For high-precision needs, choose equipment suppliers with ISO 9001/13485 certification.