一个 clad wear plate is a composite abrasion-resistant steel plate manufactured by bonding a high-hardness wear-resistant layer onto a carbon steel or low-alloy steel base plate. 广泛应用于采矿业, 水泥, 钢铁厂, 发电厂, and bulk material handling systems where extreme wear and impact conditions exist.

Unlike solid AR steels (such as AR400 or AR500), clad wear plates achieve wear resistance through a surface overlay layer, while the base plate provides strength and toughness.

What Is a Clad Wear Plate?

A clad wear plate typically consists of two main layers:

• 基层: carbon steel or structural steel (for strength and support)
• Cladding layer: high-hardness alloy (为了耐磨)

The two layers are metallurgically or mechanically bonded to act as a single plate.

Main Manufacturing Processes of Clad Wear Plates

1. Weld Overlay Cladding (堆焊)

This is the most common process.

工艺原理:

A wear-resistant alloy is deposited onto the steel surface using welding.

Typical Methods:

• 药芯焊丝电弧焊 (电弧焊)
• 淹没的弧焊接 (锯)
• 明弧焊

Cladding Materials:

• Chromium carbide alloys
• High chromium iron alloys
• Martensitic wear-resistant alloys

主要特点:

• Strong metallurgical bond
• 非常高的耐磨性
• Suitable for thick wear layers

2. Explosion Bonding (Explosive Cladding)

A high-energy bonding process using controlled explosive force.

工艺原理:

• Two metal layers are accelerated at high speed
• High-pressure impact creates a metallurgical bond

主要特点:

• Extremely strong bonding strength
• No melting of base material
• Suitable for large plates

局限性:

• 成本较高
• Limited thickness control

3. Hot Rolling Cladding

A solid-state bonding process performed under high temperature and pressure.

工艺原理:

• Base plate and cladding layer are heated
• Rolled together under high pressure

主要特点:

• Uniform bonding
• Large-scale industrial production
• 良好的表面质量

4. 激光熔覆 (Advanced Process)

A modern precision coating method.

工艺原理:

• Laser melts a small area of base surface
• Powdered alloy is added and fused
• Forms a metallurgically bonded layer

主要特点:

• 高精度
• Low dilution rate
• 优异的耐磨性和耐腐蚀性
• Suitable for high-value components

5. 热喷涂 (Less Common for Plates)

Process Types:

• 超音速火焰喷涂 (高速氧气燃料)
• 等离子喷涂

主要特点:

• No deep metallurgical bonding
• Thin coating layer
• Lower cost but weaker bond strength

Structure of Clad Wear Plate

This structure allows the plate to handle both abrasion and structural load.

性能特征

Why Clad Wear Plates Have Excellent Wear Resistance

1. Hard Alloy Surface Layer

• High chromium carbides or alloy phases
• Strong resistance to cutting and abrasion

2. Tough Base Steel Support

• Absorbs impact energy
• Prevents cracking and failure

3. Composite Design Advantage

• Combines hardness + toughness in one plate
• Optimized for severe working conditions

常见工业应用

矿业

• 破碎机衬里
• 料斗内衬
• 挖掘机桶
• 矿石溜槽

水泥行业

• 磨机衬板
• Kiln inlet/outlet liners
• 物料传输系统

钢铁行业

• 烧结厂设备
• 焦炭处理系统
• 输送机耐磨板

发电厂

• 输煤系统
• Ash pipelines
• 耐磨管道

散装物料搬运

• 卡车内衬
• 储料斗
• 进料槽

Advantages of Clad Wear Plates

• 极高的耐磨性
• Long service life in severe environments
• Can be applied on low-cost base steel
• Suitable for large and complex structures
• Strong impact + abrasion performance
• Customizable thickness and alloy layer

局限性

• Higher cost than standard AR steel
• Welding requires special procedures
• Surface layer is not easily machined
• Not suitable for precision forming after cladding