QPQ salt bath nitriding furnace
QPQ salt bath compound processing
QPQ technology is a new technology of metal surface modification and strengthening. It can improve the wear resistance and corrosion resistance of metal surface without deformation. The process realizes the combination of nitriding and oxidation, nitride and oxide, wear and corrosion resistance, heat treatment and anticorrosion.
QPQ is a new process, which has its unique requirements. The operation must be strictly standardized so that the workpiece can meet the requirements of wear resistance and corrosion resistance, and get a more beautiful appearance.
1. Technology
1.1 the whole process
Washing: it is the pretreatment of QPQ, which is very important.
Preheating: 350-400 ℃, time depends on capacity, generally 20-60min
Nitriding: 510 - 580 ℃, 15 - 180 minutes
Oxidation: 350 - 400 ℃, 10 - 20min
Polishing: commonly used mechanical vibration polishing
This process is:
Load washing - preheating - nitriding - polishing - washing - drying - oiling
(1) technical parameters of 950 °C well type resistance furnace
model | Rated power (KW) | phase | Chamber size(diameter×depth) (mm) |
application |
RJ2-40-9 | 40 | 3 | Φ600×800 |
Use for heat treatment in air of steel parts especially the long pieces,(such as axial).When the process requires, may pass into the protective atmosphere to reduce oxidation of the workpiece.
|
RJ2-50-9 | 50 | 3 | Φ600×1000 | |
RJ2-65-9 | 65 | 3 | Φ600×1600 | |
RJ2-75-9 | 75 | 3 | Φ600×2400 | |
RJ2-90-9 | 90 | 3 | Φ1000×1200 | |
RJ2-120-9 | 120 | 3 | Φ800×3000 | |
RJ2-160-9 | 160 | 3 | Φ1000×2400 | |
RJ2-110-9 | 110 | 3 | Φ700×3500 | |
RJ2-160-9 | 160 | 3 | Φ700×5000 |
(2)technical parameters of 1200 °C well type resistance furnace
model | Rated power(KW)
| rated temperature(°C) | rated voltage(V) | phase | Chamber size((diameter×depth) (mm)
|
RJ2-50-12 | 50 | 1200 | 380 | 3 | Φ600×800 |
RJ2-75-12 | 75 | 1200 | 380 | 3 | Φ600×1600 |
RJ2-90-12 | 90 | 1200 | 380 | 3 | Φ800×1000 |
RJ2-120-12 | 120 | 1200 | 380 | 3 | Φ800×2000 |
RJ2-160-12 | 160 | 1200 | 380 | 3 | Φ1000×2400 |
(3)RQ3 series 1050 °C well type gas carburizing furnace
model | Rated power(KW)
| rated temperature(°C) | rated voltage(V) | phase | furnace pipe size((diameter×depth) (mm)
| Usage depth of chamber(mm)
|
RQ3-25-10 | 25 | 1050 | 80 | 3 | Φ450×930 | 450 |
RQ3-35-10 | 35 | 1050 | 380 | 3 | Φ450×1130 | 600 |
RQ3-60-10 | 60 | 1050 | 380 | 3 | Φ650×1150 | 600 |
RQ3-75-10 | 75 | 1050 | 380 | 3 | Φ650×1415 | 900 |
RQ3-90-10 | 90 | 1050 | 380 | 3 | Φ800×1415 | 900 |
RQ3-105-10 | 105 | 1050 | 380 | 3 | Φ800×1760 | 1200 |
On 2018-08-08 11:45:46
