- Keterangan
Piring Berwajah Keras: Types of Hardfacing Layers Used in Wear-Resistant Steel Plates
Hardfaced plate is a composite wear-resistant steel product manufactured by depositing a hard alloy layer onto a carbon steel or low-alloy steel base plate. The performance of the plate is mainly determined by the type of hardfacing layer, which controls hardness, ketahanan aus, resistensi dampak, dan kehidupan pelayanan.
Different welding overlay systems are selected based on working conditions such as abrasion, dampak, suhu, dan korosi.
1. Main Types of Hardfacing Layers
| Hardfacing Type | Main Composition | Fitur Utama |
|---|---|---|
| Lapisan kromium karbida | Fe + C + Kr (high chromium carbides) | Ketahanan abrasi yang sangat baik, most common type |
| Complex carbide overlay | Kr + Catatan + Mo + C | Higher toughness and improved wear resistance balance |
| Lapisan luar tungsten karbida | toilet + Ni/Fe matrix | Kekerasan yang sangat tinggi, best for severe abrasion |
| Nickel-based overlay | Di dalam + Kr + B + Dan | Excellent corrosion and high-temperature resistance |
| Manganese-based overlay | High Mn + C alloy | Work hardening under impact conditions |
2. Performance Comparison of Different Overlay Layers
| Jenis | Ketahanan Aus | Resistensi Dampak | Aplikasi Utama |
|---|---|---|---|
| Kromium karbida | Sangat tinggi | Sedang | Pertambangan, semen, penanganan batubara |
| Complex carbide | Tinggi | Tinggi | Kondisi keausan campuran |
| Tungsten karbida | Sangat tinggi | Rendah hingga sedang | Abrasi geser yang parah |
| Nickel-based | Sedang | Tinggi | Suhu tinggi & korosi |
| Manganese-based | Sedang | Sangat tinggi | Impact-dominated wear |
3. Why Different Hardfacing Layers Are Needed
- Different wear mechanisms: abrasi, dampak, erosi, korosi
- Different working environments: dry, wet, high temperature, korosif
- Different service life requirements: short-term vs long-term protection
There is no single hardfacing layer that fits all conditions; selection must match the actual application.
4. Layer Structure of Hardfaced Plate
| Lapisan | Fungsi |
|---|---|
| Lapisan permukaan keras | Provides wear resistance |
| Transition layer (if applicable) | Meningkatkan kekuatan ikatan |
| Pelat baja dasar | Provides structural support |
5. Selection Guidelines for Hardfacing Layers
| Kondisi | Recommended Layer Type |
|---|---|
| Abrasi tinggi (batu bara, semen, bijih) | Lapisan kromium karbida |
| Dampak beragam + abrasi | Complex carbide overlay |
| Keausan geser yang ekstrem | Lapisan luar tungsten karbida |
| High temperature corrosion | Nickel-based overlay |
| Strong impact loading | Manganese-based overlay |
6. Teda Ganghua Hardfaced Plate Supply Capability
Sebagai pemasok baja tahan aus profesional, Teda Ganghua provides multiple hardfacing layer options, including chromium carbide, karbida kompleks, tungsten karbida, and nickel-based systems. We help customers select the most suitable solution based on real working conditions.
We also offer customized cutting, pembuatan, and engineered wear solutions for mining, semen, baja, dan industri tenaga listrik.
Jelajahi produk baja tahan aus kami di sini:
Pelat overlay kromium karbida
Kesimpulan
Hardfaced plates can be produced with different overlay layers such as chromium carbide, karbida kompleks, tungsten karbida, nickel-based, and manganese-based systems. Each type offers different balances of wear resistance, resistensi dampak, dan kinerja suhu, allowing selection based on specific industrial conditions.
