HVOF is an acronym for H (High), V (Velocity), O (Oxygen), and F (Fuel), and means high velocity flame spray system.
HVOF SYSTEM
MODEL: MJP-5000 HVOF SPRAY SYSTEM
HVOF spray system produces supersonic jet flame of 5,000 feet per second (1,500 m/s), and the sprayed powder produces extremely high bond strength and near-zero porosity-free coating.
The HVOF spray system produces a particularly excellent coating for WC-based and CrC-based cermet spraying.
HVOF Coating
| Example of Tungsten Carbide (WC/Co12) Coating Performance | |
|---|---|
| Bond Strength (Mild steel) | > 70MPa |
| Coating Hardness | 1,100 ~ 1,300HV (300) |
| Coating Oxidation Rate | < 3% |
| Coating Porosity | < 1% |
SYSTEM COMPONENT
MODEL: MJP-5000 HVOF SPRAY SYSTEM
MASS FLOW CONTROLLED VERSION
| System consists of | |
|---|---|
| 1. | Type MJP-5000 HVOF Gun |
| 2. | Type DF-2210-M PLC Controlled Automatic Control Panel |
| 3. | Type PF-SB-3355-A Powder Feeder |
| 4. | Type HPR High Throughput Oxygen Regulator |
| 5. | Type IHC Input & Output Supplies Package |
| 6. | Standard Spares |
OPTIONAL AUXILIARY EQUIPMENT
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MODEL: MJP-6000 ANGULAR HVOF GUN
MODEL: MJP-6000 ANGULAR HVOF GUN
MJP-6000™ gun is the state of the art for HVOF coatings on internal diameters. It is used in conjunction with standard HP-HVOF system such as MJP-5000, JP-5000 or equivalent.
| Specifications | |
|---|---|
| Internal coating Diameter | 160 mm minimum |
| Spraying Angles | 45° & 70° |
| Net Weight (Without Hoses & Mounting Brackets) |
4.70 kg, approx. |
| Spray Rate | 60 gm/min maximum |
| Coating Thickness | 2.0 mm maximum |
| HVOF Carbide Powders | Particle size +5 -30 microns |
| Coating Properties＊ | |
| Hardness | Upto 1200 VHN |
| Porosity | < 0.9 % |
| Bond Strength | > 10,000 psi |
| Deposition Efficiency | Upto 41 % |
| Coating Roughness | 2 ~ 4 Ra |
* For WC-10Co-4Cr (+5 -30) with 70°angular head