CCO 耐磨板

CCO Wear Plate is a composite wear-resistant material combining a tough steel base with a high-chromium carbide overlay layer. Its unique composition provides exceptional hardness, 优异的耐磨性, and strong impact support, making it an ideal solution for high-wear industrial environments where durability and service life are critical.

分类：碳化物覆盖板

描述

CCO 耐磨板 (碳化铬堆焊耐磨板) is a type of bimetallic wear-resistant steel plate produced by depositing a high-hardness chromium carbide alloy layer onto a mild steel or low-carbon steel base plate through a welding or overlay process. 广泛应用于矿山等重磨损环境, 水泥生产, 发电厂, 和物料搬运系统.

Main Structure of CCO Wear Plate

CCO wear plate consists of two key layers:

底板 (Backing Steel): Provides structural strength and toughness
堆焊层 (覆盖): Provides wear resistance through high chromium carbide content

Chemical Composition of Overlay Layer

The wear-resistant surface layer is typically an iron-based alloy enriched with chromium and carbon.

元素	典型内容 (%)	功能
铬 (铬)	20–35	Forms hard chromium carbides for wear resistance
碳 (C)	3–5	Combines with chromium to form hard phases
铁 (铁)	平衡	Matrix structure
锰 (锰)	少量	提高韧性
硅 (和)	少量	Improves weldability

The combination of chromium and carbon forms extremely hard carbides (such as Cr7C3 and Cr23C6), which are the key to abrasion resistance.

贱金属成分

元素	内容 (%)
碳 (C)	≤0.25
锰 (锰)	0.5–1.5
硅 (和)	≤0.5
铁 (铁)	平衡

The base plate ensures good toughness and impact resistance while supporting the hard overlay layer.

Mechanical and Wear Properties

High Hardness Surface Layer

The overlay hardness typically ranges from:

55–65HRC (洛氏硬度)
Equivalent to extremely high wear resistance compared with standard steel

优异的耐磨性

CCO wear plates are designed to resist:

滑动磨损
冲击磨损
颗粒侵蚀
Material flow wear

Strong Impact Support

The base steel provides toughness, allowing the material to absorb mechanical shock without cracking.

Good Bonding Strength

Metallurgical bonding between overlay and base plate ensures:

No delamination under normal working conditions
Stable performance under heavy load
恶劣环境下使用寿命长

耐磨机制

The performance of CCO wear plate is mainly achieved through:

Formation of hard chromium carbide particles
Uniform distribution of wear-resistant phases
Hard surface resisting cutting and grinding action
Tough base layer absorbing impact energy

性能比较

财产	CCO 耐磨板	低碳钢	Hardox-Type Steel
硬度	非常高	低的	高的
耐磨性	出色的	贫穷的	好的
抗冲击性	中-高	高的	高的
使用寿命	很长	短的	长的