1. Why Sticky Ore Adheres to Steel but Glides on UHMWPE
Cohesive ore forms capillary moisture bonds with oxidized steel surfaces, leading to progressive material build-up, rat-holing, and bridging. UHMWPE has near-zero water absorption (< 0.01%) and an ultra-low surface energy. Moisture cannot wet the plastic surface, preventing cohesive bonding and ensuring continuous mass flow even at shallow chute angles (15° - 20° reduction in required angle of slide).
2. Wear Life Comparison: 8.62M UHMWPE vs Steel & Ceramic
Under abrasive slurry and fine particle impingement, the high molecular chain entanglement of JSLT 8.62M polymer dissipates kinetic energy elastoplastically. In sand slurry abrasion testing (ISO 15527), JSLT UHMWPE achieves a wear index of only 15% compared to Carbon Steel (100%), outlasting metallic liners by up to 5 to 7 times.
| Liner Material | Density (g/cm³) | Relative Slurry Wear Index | Acid / Chemical Resistance | Impact Absorption |
|---|---|---|---|---|
| JSLT 8.62M UHMWPE | 0.93 | 15 (Best Abrasion Life) | Excellent (pH 1 - 14) | High (No Cracking) |
| AR400 Steel Plate | 7.85 | 100 (Baseline) | Poor (Rapid Corrosion) | Moderate |
| Alumina Ceramic Tiles | 3.60 | 25 | Excellent | Brittle (Shatters under Impact) |
| Cast Polyurethane (90A) | 1.15 | 30 | Good | Excellent Rebound |
❓ Frequently Asked Questions
❓ How are UHMWPE liners secured to steel hoppers?
We supply pre-machined countersunk holes with metal weld studs, conical rubber seal plugs, or elevator bolt fastening systems.
❓ What is the maximum operating temperature for mining liners?
Continuous operating temperature is up to 80°C (176°F). For high-temperature sintering zones, we recommend our specialized heat-stabilized UHMWPE grades.
Need a quote on these materials?
Email Claire — full pricing, samples, CIF delivery to your nearest port within 12 hours.
📩 claire@uhwmpe-produce.com 💬 WhatsApp Direct