China Spot Market – Rare Earth Magnet Materials Daily Quotation, Just for Reference!
▌Market Snapshot
Pr-Nd Alloy
- Current Range: 543,000 – 545,000
- Price Trend: Steady with narrow fluctuations
Dy-Fe Alloy
- Current Range: 1,620,000 – 1,630,000
- Price Trend: Firm demand supports upward momentum
The principle of magnetic shielding
Magnetic shielding uses high-permeability materials (like mu-metal or pure iron) to isolate sensitive equipment from external fields. These materials “absorb” magnetic flux lines and redirect them through the shield, creating low-field zones inside. Shielding effectiveness depends on three factors:
- Material permeability (higher=better)
- Shield thickness (thicker=better)
- Structural continuity (seams reduce performance)
Common applications include MRI room shielding, protection of precision electronics, and security measures for credit card stripes. Modern shields often use multilayer designs combining different materials for optimal performance across varying field strengths.
Post time: Mar-27-2025
