- Описание
Плакированная стальная пластина: Manufacturing and Processing Technology of Weld Overlay Wear Plate
Clad steel plate (also called weld overlay plate or hardfaced wear plate) is a composite material produced by depositing a wear-resistant alloy layer onto a steel base plate. Its performance depends not only on material composition but also on a precise and controlled manufacturing process.
Compared with ordinary steel plate production, clad steel plate requires multiple metallurgical and welding steps to achieve a stable wear-resistant surface.
1. Подготовка сырья
| Материал | Функция |
|---|---|
| Базовая стальная пластина | Provides strength and structural support |
| Welding alloy wire/powder | Forms wear-resistant overlay layer |
| Flux or shielding gas | Protects weld quality during deposition |
2. Surface Cleaning and Pre-Treatment
Перед сваркой, the base plate must be thoroughly cleaned:
- Удалить масло, ржавчина, and surface impurities
- Ensure clean bonding surface
- Improve metallurgical fusion quality
Proper pre-treatment is essential to avoid delamination and defects.
3. Preheating Process
The base plate is often preheated before overlay welding:
- Reduces thermal stress
- Prevents cracking in hardfacing layer
- Улучшает прочность соединения
Preheating temperature depends on steel grade and overlay system.
4. Процесс наплавки
This is the core manufacturing step of clad steel plate.
| Process Type | Характеристики |
|---|---|
| Сварка открытой дугой | Common, экономически эффективный, high deposition rate |
| Сварка под флюсом (ПИЛА) | Stable quality, suitable for large plates |
| ПТА (Plasma transferred arc) | Высокая точность, excellent carbide control |
| Лазерная наплавка | High-end process, низкое разбавление, высокая производительность |
The wear-resistant layer is built by multiple welding passes to reach the required thickness.
5. Multi-Layer Deposition Control
- Each layer must be precisely controlled in thickness
- Cooling is required between passes
- Carbide distribution must remain uniform
This step determines final hardness and wear resistance.
6. Cooling and Stress Relief
После сварки, controlled cooling is required:
- Prevents thermal deformation
- Reduces internal residual stress
- Improves structural stability
7. Straightening and Finishing
Because welding introduces deformation, finishing processes are required:
- Mechanical straightening
- Surface grinding (если требуется)
- Dimensional correction
8. Резка и изготовление
Clad steel plates are often processed into final shapes:
- Плазменная резка
- Waterjet cutting (preferred for precision)
- Лазерная резка (thin plates)
Special care is needed due to the high hardness of the overlay layer.
9. Проверка качества
| Test Item | Цель |
|---|---|
| Hardness test | Verify wear resistance level |
| Bonding strength test | Ensure metallurgical fusion quality |
| Измерение толщины | Check overlay uniformity |
| Surface inspection | Detect cracks or defects |
10. Teda Ganghua Clad Steel Plate Manufacturing Capability
Как профессиональный поставщик износостойкой стали, Теда Ганхуа produces high-quality clad steel plates using controlled welding processes, stable alloy systems, and strict quality inspection standards.
We provide customized wear solutions including cutting, изготовление, and engineered wear protection for mining, цемент, сталь, и энергетическая отрасль.
Ознакомьтесь с нашей продукцией из износостойкой стали здесь:
Хромий карбид накладка
Заключение
The manufacturing of clad steel plate involves multiple precise steps including surface preparation, предварительный нагрев, multi-layer welding, cooling control, finishing, and inspection. This complex process ensures high hardness, сильная связь, and long service life in industrial wear applications.
