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Red-Hardness: Through precise quenching and tempering processes, the chains maintain their hardness and structural integrity even at elevated temperatures. This "red-hardness" prevents the chain links from elongating or deforming under load, a common failure mode in inferior steels.
Heat-Resistant Alloying: The addition of Chromium (Cr), Nickel (Ni), and Molybdenum (Mo) enhances the material's resistance to tempering, ensuring the chain does not anneal itself during continuous exposure to hot sinter.
Surface Hardness: The chains undergo surface hardening treatments (often reaching 55–62 HRC) to resist the "ploughing effect" caused by heavy sinter lumps. This hardness is crucial for minimizing wear on the link crowns and weld points.
Impact Absorption: The "round-link" design, combined with a high-tensile core (often exceeding 1000 MPa or roughly 350–1200 kN breaking load), allows the chain to absorb the kinetic energy of falling ore without brittle fracture. The ductility of the alloy ensures the chain bends rather than snaps under shock loading.
Thermal Expansion Management: These chains are engineered with specific pitch tolerances to accommodate thermal expansion. This prevents the chain from "locking up" or binding within the sprockets and troughs as it expands under heat.
Wear Resistance: By minimizing elongation due to wear, the chain maintains synchronization with the drive sprockets, significantly reducing the risk of derailment or "jumping teeth," which are primary causes of unscheduled downtime.
Extended Service Life: Reducing replacement frequency from months to years.
Reduced Maintenance: Lowering the need for frequent tension adjustments and link replacements.
Safety: Mitigating the risk of catastrophic chain failure that could lead to production stoppages or safety hazards
