Wind Turbine Shaft | 42CrMo4, 34CrNiMo6 |
Marine Shaft | C-Mn steel |
Hydro Turbine Shaft | 20SiMn |
Roller Shaft | 70Cr3Mo; 9Cr2Mo; MC1; MC2; MC3 |
Gear Shaft | 17CrNiMo6; 18CrNiMo7-6; 20CrNi2Mo; 42CrMo; 47CrNiMo6, 20CrMnMo |
Gear | 17CrNiMo6; 18CrNiMo7-6; 20CrNi2Mo; 42CrMo; 47CrNiMo6, 20CrMnMo, 30 CrNiMo6 |
Pressure Vessel Forgings | SA105, SA350 LF2, 16Mn, 20MnMo, 15MnMo, 12Cr2Mo1, 14Cr1Mo, 42CrMo, F304, F316, 17-4PH, 4330, 4336, 4340 |
Ring Rolling | 16Mn, 50Mn, 42CrMo, 15MnV, 35CrMo, A105, 20#, 304, 304L, 316, 316L |
Item | Process | Facility | Inspection items | Standard |
01 Â |
Steel material in inspection | Â | Chemical composition (EF+LF+VD) | Material standard |
 | surface | Ingot inspection specification | ||
 | Ingot type and weight | Material standard | ||
02 Â |
Material store | Â | Division put | warehouse management |
1 Â |
Heat | Heat furnace | Temperature/Time |
Heating process specification Forging production procedure |
2 ↓ |
Forging | Press | Reduction ratio, forging temperature, deformation, Surface and dimensions |
Forging process card Forging procedure |
3 ↓ |
Heat treatment | heat treatment furnace | heat treatment charts |
1st heat-treatment card Forging procedure |
4 ↓ |
Rough inspection | Â | Dimensions, appearance, Mark |
Inspection specification Forging procedure |
5 ↓ |
Rough UT | UT equipment | Single defect, concentrated defects bottom wave attenuation | UT standard or customer's technical requirements |
6 ↓ |
Saw cutting | Saw machine | Dimension | IQC and forging |
7 ↓ |
Rough turning | turning-lathe | Dimension, appearance | Rough machining drawing |
8 ↓ |
UT | UT equipment | Single defect, concentrated defects bottom wave attenuation | UT standard or customer's technical requirements |
9 ↓ |
Q+T heat treatment | heat treatment furnace | heat treatment charts | Heating process specification |
10 ↓ |
Sampling or machining | machining tool | rough machining drawing, sampling drawing | sample machining drawing |
11 ↓ |
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