- Описание
Хромий карбид накладка: Differences Between Hardfaced Plates and Other Wear-Resistant Steels
Накладка из карбида хрома (Табличка CCO) is a composite wear-resistant steel plate produced by welding a high-chromium carbide alloy layer onto a mild steel or low-alloy steel base plate. It is one of the most widely used hardfaced wear solutions in mining, цемент, сталь, и энергетическая отрасль.
Compared with conventional wear-resistant steels such as NM400, НМ500, or AR400 steel, chromium carbide overlay plate is fundamentally different in both structure and wear mechanism.
1. Structural Difference
| Тип материала | Структура | Основная особенность |
|---|---|---|
| Накладка из карбида хрома | Базовая сталь + welded carbide overlay layer | Composite structure |
| НМ400 / NM500 wear steel | Alloyed quenched & закаленная сталь | Homogeneous structure |
| АР400 / AR500 Сталь | Heat-treated alloy steel | Uniform hardness throughout thickness |
The most important difference is that CCO plates have a two-layer structure, while traditional wear steels are single-material plates.
2. Wear Mechanism Difference
| Тип материала | Main Wear Resistance Mechanism |
|---|---|
| Накладка из карбида хрома | Hard carbide particles resist abrasion |
| НМ400 / NM500 steel | High hardness matrix resists wear |
| AR сталь | Сбалансированная твердость и прочность |
CCO plates rely on extremely hard chromium carbide particles (HRC 58–65), while wear steels rely on overall bulk hardness.
3. Сравнение твердости и производительности
| Свойство | Табличка CCO | Износостойкая сталь (NM/AR) |
|---|---|---|
| Твердость поверхности | HRC 58–65 | НВ 400–500 |
| Износостойкость | Excellent in sliding abrasion | Good in impact + истирание |
| Ударопрочность | Ниже (brittle surface layer) | Higher toughness |
| Service life | Very long in abrasive conditions | Balanced in mixed conditions |
4. Processing Difference
- Табличка CCO: Requires plasma or laser cutting due to hard surface layer
- Износ стали: Легче резать, сгибать, и сварить
- Табличка CCO: May have controlled surface cracks to release stress
- Износ стали: No surface cracking is normal
5. Application Difference
| Условия применения | Best Material Choice |
|---|---|
| High sliding abrasion | Накладка из карбида хрома |
| Высокое воздействие + истирание | НМ400 / NM500 steel |
| Mixed working conditions | AR steel or hybrid solutions |
6. Key Advantage of Chromium Carbide Overlay Plate
- Чрезвычайно высокая износостойкость в абразивных средах
- Длительный срок службы in chutes, бункеры, и вкладыши
- Replaceable wear surface concept (base plate remains intact)
- Cost efficiency in long-term maintenance
7. Teda Ganghua Wear Plate Supply Capability
Как профессиональный поставщик износостойкой стали, Теда Ганхуа provides chromium carbide overlay plates and other wear-resistant steel solutions tailored to different industrial conditions, включая добычу полезных ископаемых, цемент, сталь, и энергетической отрасли.
Мы поддерживаем индивидуальную резку, изготовление, and full wear protection system design based on real operating environments.
Ознакомьтесь с нашей продукцией из износостойкой стали здесь:
Wear Resistant Steel Plates
Заключение
Chromium carbide overlay plate differs from traditional wear-resistant steels because it uses a composite structure with a hard carbide overlay layer rather than a homogeneous steel body. This makes it far superior in abrasive wear conditions but less suitable for high-impact environments.
