Plat Pakai CCO
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, rintangan lelasan yang sangat baik, and strong impact support, making it an ideal solution for high-wear industrial environments where durability and service life are critical.
- Penerangan
Plat Pakai CCO (Plat pakai lapisan karbida kromium) 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. It is widely used in heavy wear environments such as mining, pengeluaran simen, loji kuasa, dan sistem pengendalian bahan.
Main Structure of CCO Wear Plate
CCO wear plate consists of two key layers:
- Plat Asas (Keluli Penyandar): Provides structural strength and toughness
- Lapisan Hardfacing (Tindanan): Provides wear resistance through high chromium carbide content
Komposisi Kimia Lapisan Tindanan
The wear-resistant surface layer is typically an iron-based alloy enriched with chromium and carbon.
| unsur | Kandungan Biasa (%) | Fungsi |
|---|---|---|
| Chromium (Cr) | 20-35 | Forms hard chromium carbides for wear resistance |
| Karbon (C) | 3–5 | Combines with chromium to form hard phases |
| besi (Fe) | Baki | Matrix structure |
| Mangan (Mn) | Jumlah yang kecil | Meningkatkan keliatan |
| silikon (Dan) | Jumlah yang kecil | Improves weldability |
The combination of chromium and carbon forms extremely hard carbides (such as Cr7C3 and Cr23C6), which are the key to abrasion resistance.
Komposisi Logam Asas
| unsur | kandungan (%) |
| Karbon (C) | ≤0.25 |
| Mangan (Mn) | 0.5–1.5 |
| silikon (Dan) | ≤0.5 |
| besi (Fe) | Baki |
The base plate ensures good toughness and impact resistance while supporting the hard overlay layer.
Sifat Mekanikal dan Pakai
Lapisan Permukaan Kekerasan Tinggi
The overlay hardness typically ranges from:
- 55-65 HRC (Kekerasan Rockwell)
- Equivalent to extremely high wear resistance compared with standard steel
Rintangan Lelasan Cemerlang
CCO wear plates are designed to resist:
- Lelasan gelongsor
- Kesan lelasan
- Hakisan zarah
- 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:
- Tiada delaminasi dalam keadaan kerja biasa
- Stable performance under heavy load
- Hayat perkhidmatan yang panjang dalam persekitaran yang keras
Mekanisme Rintangan Haus
The performance of CCO wear plate is mainly achieved through:
- Pembentukan zarah kromium karbida keras
- Pengedaran seragam fasa tahan haus
- Hard surface resisting cutting and grinding action
- Tough base layer absorbing impact energy
Perbandingan Prestasi
| Harta benda | Plat Pakai CCO | Keluli Lembut | Hardox-Type Steel |
| Kekerasan | Sangat Tinggi | rendah | tinggi |
| Rintangan lelasan | Cemerlang | miskin | bagus |
| Rintangan Kesan | Sederhana–Tinggi | tinggi | tinggi |
| Hayat perkhidmatan | Sangat Panjang | pendek | Panjang |
Aplikasi Biasa
CCO wear plates are widely used in industries with severe wear conditions:
- Pelapik peralatan perlombongan
- Pelongsor dan corong loji simen
- Sistem pengendalian arang batu
- Sistem abu loji kuasa
- Steel plant conveyors
- Baldi penggali dan trak pembuangan
- Crusher liners and screens
- Sistem pemindahan bahan pukal
