Placa de desgaste bimetálica

Bimetallic Wear Plate is a composite wear-resistant material made by bonding two different metals together, typically a tough carbon steel base plate and a high-hardness wear-resistant overlay layer. This structure combines the strength and impact resistance of steel with the extreme wear resistance of alloyed surface materials.

Es muy utilizado en minería., producción de cemento, plantas siderúrgicas, generación de energía, and bulk material handling industries where both abrasion resistance and structural toughness are required.

Estructura de materiales

A bimetallic wear plate consists of two key layers:

• Capa base: Carbon steel or low-alloy steel for structural strength and impact resistance
• Wear Layer: High-hardness alloy overlay for abrasion and erosion resistance

Las dos capas están unidas metalúrgicamente., ensuring strong adhesion and long service life under harsh operating conditions.

Composición química de la capa de desgaste

The surface wear layer varies depending on the overlay type, but commonly includes high-chromium carbide alloys.

Elemento	Contenido típico (%)	Función
Cromo (cr)	20–35	Forms hard carbides for wear resistance
Carbón (do)	3–5	Combines with chromium to form carbide phases
Hierro (fe)	Balance	Matrix material
Manganeso (Minnesota)	pequeña cantidad	Mejora la dureza
Silicio (Y)	pequeña cantidad	Stabilizes welding process

These elements form extremely hard carbide compounds such as Cr₇C₃ and Cr₂₃C₆, which are responsible for high abrasion resistance.

Base Metal Composition

Elemento	Contenido (%)
Carbón (do)	≤0,25
Manganeso (Minnesota)	0.5–1,5
Silicio (Y)	≤0,5
Hierro (fe)	Balance

The base steel provides ductility and impact resistance, preventing brittle failure of the hard surface layer.

Características de rendimiento

Alta resistencia al desgaste

The hard overlay layer provides excellent resistance to sliding abrasion, particle erosion, and material impact wear.

Buena resistencia al impacto

The base steel absorbs mechanical shock and vibration, making the material suitable for combined wear and impact environments.

Strong Bonding Strength

The metallurgical bonding between layers ensures no delamination under normal working conditions.

Vida útil extendida

Compared with traditional steel plates, bimetallic wear plates significantly extend operational life in harsh industrial environments.

Common Types of Bimetallic Wear Plates

1. Recubrimiento de carburo de cromo (director de operaciones) Lámina

• Most common type
• Dureza extremadamente alta (55–65 HRC)
• Best for severe abrasion environments

2. Placa superpuesta de carburo de tungsteno

• Higher hardness than CCO
• Excellent for extreme wear conditions
• Higher cost and more specialized applications

3. Ceramic-Embedded Wear Plate

• Ceramic particles embedded in metal matrix
• Outstanding abrasion resistance
• Used in high-speed particle erosion environments

4. Mn-Based Impact Wear Plate

• High manganese steel base
• Strong work-hardening capability
• Suitable for high-impact environments

5. Multi-Layer Composite Wear Plate

• Combination of multiple alloy layers
• Designed for mixed wear conditions
• Customized for specific industrial applications

Performance Comparison of Types

Tipo	Resistencia a la abrasión	Resistencia al impacto	Uso típico
Placa CCO	muy alto	Medio	Minería, cemento
Tungsten Carbide Plate	Extremadamente alto	Medio-bajo	Zonas de abrasión severa
Ceramic Wear Plate	muy alto	Bajo-medio	Particle erosion systems
Mn Steel Plate	Medio	muy alto	High-impact equipment
Multi-Layer Plate	Adjustable	Adjustable	Complex working conditions

Aplicaciones típicas

Bimetallic wear plates are widely used in:

• Equipos para minas y canteras
• Cement plant chutes and liners
• Sistemas de manipulación de carbón
• Sistemas de manejo de cenizas de centrales eléctricas.
• Steel plant conveyors and hoppers
• Cucharones de excavadora y camiones volquete
• Sistemas de trituración y cribado.
• Sistemas de transferencia de material a granel