- Descrizione
Piastra a faccia dura: Types of Hardfacing Layers Used in Wear-Resistant Steel Plates
Hardfaced plate is a composite wear-resistant steel product manufactured by depositing a hard alloy layer onto a carbon steel or low-alloy steel base plate. The performance of the plate is mainly determined by the type of hardfacing layer, which controls hardness, resistenza all'usura, resistenza agli urti, and service life.
Different welding overlay systems are selected based on working conditions such as abrasion, impatto, temperatura, e corrosione.
1. Main Types of Hardfacing Layers
| Hardfacing Type | Main Composition | Caratteristiche principali |
|---|---|---|
| Rivestimento in carburo di cromo | Fe + C + Cr (high chromium carbides) | Excellent abrasion resistance, most common type |
| Complex carbide overlay | Cr + N.B + Mo + C | Higher toughness and improved wear resistance balance |
| Rivestimento in carburo di tungsteno | wc + Ni/Fe matrix | Durezza estremamente elevata, best for severe abrasion |
| Nickel-based overlay | In + Cr + B + E | Excellent corrosion and high-temperature resistance |
| Manganese-based overlay | High Mn + C alloy | Work hardening under impact conditions |
2. Performance Comparison of Different Overlay Layers
| Tipo | Resistenza all'usura | Resistenza all'ambiente | Main Application |
|---|---|---|---|
| Carburo di cromo | Molto alto | Medio | Estrazione, cemento, movimentazione del carbone |
| Complex carbide | Alto | Alto | Condizioni di usura miste |
| Carburo di tungsteno | Extremely high | Low to medium | Severe sliding abrasion |
| Nickel-based | Medio | Alto | Alta temperatura & corrosion |
| Manganese-based | Medio | Molto alto | Impact-dominated wear |
3. Why Different Hardfacing Layers Are Needed
- Different wear mechanisms: abrasione, impatto, erosione, corrosion
- Different working environments: dry, wet, high temperature, corrosivo
- Different service life requirements: short-term vs long-term protection
There is no single hardfacing layer that fits all conditions; selection must match the actual application.
4. Layer Structure of Hardfaced Plate
| Strato | Funzione |
|---|---|
| Strato di rivestimento duro | Provides wear resistance |
| Transition layer (if applicable) | Improves bonding strength |
| Piastra base in acciaio | Provides structural support |
5. Selection Guidelines for Hardfacing Layers
| Condizione | Recommended Layer Type |
|---|---|
| Elevata abrasione (carbone, cemento, minerale) | Rivestimento in carburo di cromo |
| Mixed impact + abrasione | Complex carbide overlay |
| Extreme sliding wear | Rivestimento in carburo di tungsteno |
| High temperature corrosion | Nickel-based overlay |
| Strong impact loading | Manganese-based overlay |
6. Teda Ganghua Hardfaced Plate Supply Capability
Come fornitore professionale di acciaio resistente all'usura, Teda Ganghua provides multiple hardfacing layer options, including chromium carbide, carburo complesso, carburo di tungsteno, and nickel-based systems. We help customers select the most suitable solution based on real working conditions.
We also offer customized cutting, fabbricazione, and engineered wear solutions for mining, cemento, acciaio, e industrie energetiche.
Esplora qui i nostri prodotti in acciaio resistente all'usura:
Piastra di overlay in carburo di cromo
Conclusione
Hardfaced plates can be produced with different overlay layers such as chromium carbide, carburo complesso, carburo di tungsteno, nickel-based, and manganese-based systems. Each type offers different balances of wear resistance, resistenza agli urti, e prestazioni di temperatura, allowing selection based on specific industrial conditions.
