UHV Shield-AL1060

1. Product Overview

Industry
Ultra-High Voltage (UHV) Power Transmission

Product Name
UHV Shield (Ultra-High Voltage Shield)

Manufacturing Process
CNC Metal Spinning + Precision Mechanical Polishing

2. Material Specification

Base Material
AL1060 Aluminum Alloy (Standard: GB/T 3880.1-2012)

Mechanical & Electrical Properties

• Yield Strength: ≥35 MPa
  
• Tensile Strength: ≥95 MPa
  
• Elongation: ≥23%
  
• Density: 2.71 g/cm³
  
• Electrical Conductivity: ≥61% IACS
  

Wall Thickness
1.5 mm
Thickness Tolerance: ≤±0.10 mm

3. Dimensions & Geometrical Tolerances

Overall Size
Ø197 mm × H255 mm

Dimensional Tolerances

• General Tolerance: GB/T 1804-2000, Grade m
  
• Roundness: ≤0.20 mm
  
• Perpendicularity: ≤0.15 mm/m
  

4. Surface Treatment & Finish

Surface Process
Mechanical Polishing (Mirror Finish)

Polishing Performance

• Surface Roughness: Ra ≤0.4 μm
  
• Gloss Level: ≥90 GU
  
• Surface Condition: Scratch-free, no oxidation spots
  

5. Manufacturing Process Description

Core Forming Process
CNC Metal Spinning using CNC250 Spinning Lathe

Key Spinning Parameters

• Spindle Speed: 800–1200 rpm
  
• Roller Feed Rate: 3–6 mm/s
  
• Single Pass Deformation: 0.3–0.5 mm
  

Polishing Process
Three-stage progressive polishing:

• Rough Polishing: 2000 rpm
  
• Intermediate Polishing: 2500 rpm
  
• Fine Polishing: 3000 rpm
  
• Total Polishing Time: 8–12 minutes per unit
  

Auxiliary Process Flow
Degreasing → Sheet Leveling (Flatness ≤0.2 mm/m) →
CNC Metal Spinning → Mechanical Deburring →
Rough / Intermediate / Fine Polishing →
Ultrasonic Cleaning → Drying → Final Dimensional Inspection

6. Quality Control & Standards Compliance

Quality Management System
ISO 9001:2015 Certified

Applicable Standards

• GB/T 3880.1-2012 (Aluminum Alloy Sheet)
  
• Relevant UHV Power Transmission Technical Specifications
  

Incoming Material Inspection

• Spectral Analysis (Al ≥99.60%, element deviation ≤±0.05%)
  
• Mechanical Property Testing
  
• Ultrasonic Testing (No internal defects)
  

In-Process Inspection

• Spinning Forming Conformity ≥98%
  
• CMM Dimensional Inspection
  
• Full-Circumference Wall Thickness Measurement (±0.01 mm)
  
• Surface Roughness & Gloss Testing
  
• Edge Inspection (Chamfer Radius R ≥1.2 mm)
  

Final Inspection
Sampling per GB/T 2828.1-2012 (AQL 2.5), including:

• Dimensions
  
• Surface Quality
  
• Electrical Conductivity
  Each qualified product is supplied with a traceability code and inspection report.
  

7. Production Capacity & Delivery

Production Capacity

• Daily Output: 80 pcs
  
• Monthly Capacity: 2,400 pcs
  
• Multi-machine parallel production supported
  

Lead Time

• Standard Orders: 4–6 working days
  
• Batch Orders (≥100 pcs): 6–10 working days
  
• Urgent Orders: 2–4 working days (subject to scheduling)
  

Packaging & Logistics
Dust-proof film + Pearl cotton + Carton + Wooden pallet
50 pcs per pallet
Door-to-door domestic logistics (2–5 working days)
On-site delivery to power equipment manufacturers supported

8. Customization Capability

• Diameter Range: Ø100–500 mm
  
• Height Range: 100–400 mm
  
• Optional Materials: AL5052 / AL6061
  Customization requires equipment interface dimensions and operating conditions.
  

9. Applications

Primary Applications

• UHV transmission lines and substations
  
• Shielding for insulators, bushings, and busbar systems
  
• Electric field control, pollution flashover prevention, insulation protection
  

Rated Voltage Level
≥1000 kV

Dielectric Strength
≥35 kV/mm

Operating Environment

• Temperature: –40°C to +120°C
  
• Outdoor, high humidity, dusty, strong electric field environments
  

10. Extended Applications

• High-voltage substations (110 kV / 220 kV)
  
• Power transformer outlet shielding
  
• Rail transit power supply systems
  
• Photovoltaic and wind power station HV combiner shielding
  

AL1060 aluminum ensures excellent conductivity, thermal dissipation, and forming stability for medium-to-high voltage applications.

11. After-Sales Service

Warranty
24 months from acceptance
Free repair or replacement for dimensional deviation, material non-conformity, surface defects, or shielding performance failure.

Technical Support

• Pre-sales selection assistance
  
• Installation manuals and dimensional drawings
  
• Material & conductivity test reports
  
• Remote installation and commissioning support
  

Service Response
24-hour response
Solution provided within 1–3 working days
Closed-loop quality tracking

Post-Warranty Support
Paid repair and re-polishing services
Long-term maintenance agreements available for power equipment manufacturers

Contact us and Request A Quote