- Description
Plaque à rechargement dur: 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, résistance à l'usure, résistance aux chocs, et durée de vie.
Different welding overlay systems are selected based on working conditions such as abrasion, impact, température, et corrosion.
1. Main Types of Hardfacing Layers
| Hardfacing Type | Main Composition | Principales fonctionnalités |
|---|---|---|
| Revêtement en carbure de chrome | Fe + C + Cr (high chromium carbides) | Excellente résistance à l'abrasion, most common type |
| Complex carbide overlay | Cr + Nb + Mo + C | Higher toughness and improved wear resistance balance |
| Revêtement en carbure de tungstène | toilettes + Ni/Fe matrix | Dureté extrêmement élevée, best for severe abrasion |
| Nickel-based overlay | Dans + Cr + B + Et | 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
| Taper | Résistance à l'usure | Résistance aux chocs | Application principale |
|---|---|---|---|
| Carbure de chrome | Très élevé | Moyen | Exploitation minière, ciment, manutention du charbon |
| Complex carbide | Haut | Haut | Conditions d'usure mixtes |
| Carbure de tungstène | Extrêmement élevé | Faible à moyen | Abrasion par glissement sévère |
| Nickel-based | Moyen | Haut | Haute température & corrosion |
| Manganese-based | Moyen | Très élevé | Impact-dominated wear |
3. Why Different Hardfacing Layers Are Needed
- Different wear mechanisms: abrasion, impact, érosion, corrosion
- Different working environments: dry, wet, high temperature, corrosif
- 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
| Couche | Fonction |
|---|---|
| Calque dur | Provides wear resistance |
| Transition layer (if applicable) | Améliore la force de liaison |
| Plaque de base en acier | Provides structural support |
5. Selection Guidelines for Hardfacing Layers
| Condition | Recommended Layer Type |
|---|---|
| Forte abrasion (charbon, ciment, minerai) | Revêtement en carbure de chrome |
| Impact mitigé + abrasion | Complex carbide overlay |
| Usure extrême par glissement | Revêtement en carbure de tungstène |
| High temperature corrosion | Nickel-based overlay |
| Strong impact loading | Manganese-based overlay |
6. Teda Ganghua Hardfaced Plate Supply Capability
As a professional wear-resistant steel supplier, Teda Ganghua provides multiple hardfacing layer options, including chromium carbide, carbure complexe, carbure de tungstène, and nickel-based systems. We help customers select the most suitable solution based on real working conditions.
We also offer customized cutting, fabrication, and engineered wear solutions for mining, ciment, acier, et industries électriques.
Découvrez nos produits en acier résistant à l'usure ici:
Plaque de superposition de carbure de chrome
Conclusion
Hardfaced plates can be produced with different overlay layers such as chromium carbide, carbure complexe, carbure de tungstène, à base de nickel, and manganese-based systems. Each type offers different balances of wear resistance, résistance aux chocs, et performances en température, allowing selection based on specific industrial conditions.
