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클래드 강판: 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. Raw Material Preparation
| 재료 | 기능 |
|---|---|
| 베이스 강판 | 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
용접 전, the base plate must be thoroughly cleaned:
- 기름 제거, 녹, 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:
- 열 스트레스 감소
- Prevents cracking in hardfacing layer
- 접착력 향상
Preheating temperature depends on steel grade and overlay system.
4. 오버레이 용접 공정
This is the core manufacturing step of clad steel plate.
| Process Type | 형질 |
|---|---|
| 오픈 아크 용접 | 흔한, 비용 효율적, high deposition rate |
| 서브머지드 아크 용접 (봤다) | Stable quality, suitable for large plates |
| PTA (Plasma transferred arc) | 높은 정밀도, excellent carbide control |
| 레이저 클래딩 | High-end process, low dilution, high performance |
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
용접 후, 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 (필요한 경우)
- Dimensional correction
8. Cutting and Fabrication
Clad steel plates are often processed into final shapes:
- 플라즈마 절단
- Waterjet cutting (preferred for precision)
- 레이저 절단 (thin plates)
Special care is needed due to the high hardness of the overlay layer.
9. Quality Inspection
| Test Item | 목적 |
|---|---|
| Hardness test | Verify wear resistance level |
| Bonding strength test | Ensure metallurgical fusion quality |
| Thickness measurement | Check overlay uniformity |
| Surface inspection | Detect cracks or defects |
10. Teda Ganghua Clad Steel Plate Manufacturing Capability
전문적인 내마모성 강철 공급업체로서, 테다강화 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, 제작, and engineered wear protection for mining, 시멘트, 강철, 및 전력 산업.
여기에서 내마모성 강철 제품을 살펴보세요.:
크롬 카바이드 오버레이 플레이트
결론
The manufacturing of clad steel plate involves multiple precise steps including surface preparation, 예열, multi-layer welding, cooling control, finishing, and inspection. This complex process ensures high hardness, 강한 결합, and long service life in industrial wear applications.
