Placa de desgaste revestida
Clad Wear Plate is a versatile composite material that uses different wear-resistant cladding systems such as chromium carbide, carboneto de tungstênio, martensitic steel, ceramic composites, and nickel-based alloys. Each material offers different balances of wear resistance, Resistência ao impacto, and environmental suitability, allowing engineers to select the most appropriate solution for specific industrial conditions.
- Descrição
Clad Wear Plate is a composite wear-resistant steel product made by bonding a high-performance wear-resistant layer onto a carbon steel or low-alloy steel base plate. It is designed to combine structural strength with excellent surface wear resistance, making it widely used in mining, cimento, geração de energia, usinas siderúrgicas, e sistemas de manuseio de materiais a granel.
The performance of clad wear plates depends mainly on the type of wear-resistant cladding material used on the surface layer.
Structure of Clad Wear Plate
A typical clad wear plate consists of two layers:
- Camada base: Carbon steel or low-alloy steel for strength and toughness
- Camada de Revestimento: Wear-resistant alloy layer for abrasion and erosion resistance
As duas camadas são ligadas metalurgicamente, ensuring strong adhesion and long service life under harsh conditions.
Common Wear Resistant Cladding Materials
Different cladding materials are selected based on working conditions such as abrasion, impacto, temperatura, and particle size.
1. Sobreposição de carboneto de cromo (CCO)
This is the most widely used cladding material for wear plates.
- High chromium and carbon content
- Forms hard carbide phases (Cr₇C₃, Cr₂₃C₆)
- Dureza: normalmente 55–65 HRC
- Excellent resistance to sliding abrasion and particle erosion
Aplicações típicas: mining liners, calhas de cimento, coal handling systems
2. Tungsten Carbide Composite Layer
A high-end wear-resistant cladding material.
- Contains tungsten carbide (Banheiro) partículas
- Dureza extremamente alta
- Superior abrasion resistance compared to chromium carbide
- Higher cost and specialized use
Aplicações típicas: extreme wear zones, high-value equipment protection
3. Martensitic Steel Overlay
A tough and wear-resistant cladding system based on alloy steel.
- Microestrutura martensítica
- Dureza e tenacidade equilibradas
- Boa resistência ao impacto
- Resistência moderada à abrasão
Aplicações típicas: impacto pesado + ambientes de desgaste
4. Ceramic-Embedded Cladding
A composite system with ceramic particles distributed in a metal matrix.
- Ceramic particles such as alumina or silicon carbide
- Extremely high resistance to particle erosion
- Lower impact resistance compared to metallic overlays
Aplicações típicas: high-speed particle flow systems, pneumatic conveying
5. Nickel-Based Alloy Cladding
Used in special environments requiring corrosion and wear resistance.
- Excellent corrosion resistance
- Good performance at high temperatures
- Moderate wear resistance compared to carbide systems
Aplicações típicas: chemical industry, high-temperature equipment
Performance Comparison of Cladding Materials
| Cladding Type | Resistência ao desgaste | Resistência ao impacto | Resistência à temperatura | Uso típico |
|---|---|---|---|---|
| Carboneto de Cromo | Muito alto | Médio | Médio | General industrial wear |
| Carboneto de tungstênio | Extremamente alto | Médio-Baixo | Médio | Zonas de abrasão severa |
| Aço Martensítico | Médio-Alto | Alto | Médio | Impacto + wear conditions |
| Ceramic Composite | Muito alto | Baixo-Médio | Alto | Erosion environments |
| Nickel Alloy | Médio | Médio | Alto | Corrosive + high-temp use |
Key Performance Features of Clad Wear Plate
- Combines structural strength with surface wear resistance
- Customizable wear layer according to application
- Long service life in harsh industrial environments
- Reduz custos de manutenção e tempo de inatividade
- Suitable for complex fabrication and installation
Aplicações Industriais Típicas
Clad wear plates are widely used in:
- Equipamentos de mineração e pedreira
- Sistemas de produção de cimento
- Coal and ash handling systems
- Steel plant conveyors and chutes
- Power plant wear components
- Sistemas de transferência de materiais a granel
- Heavy industrial machinery protection
