ชื่อสินค้า : เลเซอร์สำหรับงานเชื่อมสเปรย์ LASER CLADDING
ยี่ห้อ : METALLIZING EQUIPMENT
รุ่น : Comparison Of Coating Processes
The following table gives a broad comparison of coating processes. The data shown is based on typical applications and parameters. There can be exceptions to the below data, based on specific applications and parameters.
|
HVOF Thermal Spray |
PTA |
Laser Cladding |
| Heat source |
Flame (liquid or gas) |
Electric arc |
Laser beam |
| Coating thickness (typical) |
0.05 – 1mm |
0.5 – 5mm |
0.2 – 2mm |
| Typical Deposition rates |
≤ 5 kg/hr |
≤ 10 kg/hour |
≤ 5kg/hr |
| Dilution |
0 |
5-15% |
≤ 5% |
| Type of bonding |
Mechanical |
Metallurgical |
Metallurgical |
| Bond strength |
≤ 80 MPa |
≤ 800 MPa |
≤ 800 MPa |
| Heat input |
Low – medium |
High |
Low - medium |
| Porosity |
≤ 1% |
< 0.1% |
< 0.1% |
| Comparative capital cost |
Medium |
Low |
High |
| Comparative running cost |
High |
Medium - Low |
Low |
Typical Applications (Coating Materials)
- Down hole stabilisers (WC/Ni)
- High temp process rolls, hardness & corrosion resistance, valve lips and seats (Cobalt 6)
- Valve balls/seats, process rolls, waste incineration boiler parts, oil refinery process plant (NiCrMo)
- Coal and ore crushing hammers / wear plates / sand valves (WC/Ni)
- Valve balls/seats, process rolls, boiler components, waste incineration boiler parts, hydraulic rods, down hole stabilisers (FeCrB)
