30mm Die Forged Steel Shafts Roller AISI4140 1.7225
Die Forging Scm440 42crmo4 Steel Roll Shaft, Sae4340 Aisi4140 Forging Steel Rolls
Detail description
1: Name: General forging steel roller shaft, forged steel roll forging steel turbie roll shaft
2: Certificates: ISO9001-2008, SGS, PED
3: Products ability: 3000 ton/month
4: Surface: Polishing or per customer's requirement
5: Proces: Hot forging
Quality Control
1: On line inspection, we perform 100% on line inspection during production not to release any problem during production.
2: 100% inspection on each finished products.
3: Customer's own inspection.
4: Third party inspection.
5: UT( Ultrasonic Testing), MT, X-ray test, Spectrometer, Tensile strength, Impact test machine, Hardness tester
| Item |
Process
|
Facility | Inspection items | Standard |
01 |
Steel material inspection |
Chemical composition (EF+LF+VD) |
Material standard | |
| surface | Ingot inspection specification |
|||
| Ingot type and weight | Material standard | |||
| 02 | Material store |
Division put | warehouse management | |
| 1 | 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 |
Dimensions, apperance, 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 ↓ |
mechanical property test |
tensile testing machine/ impact testing machine |
ambient temperature,humidity, Test temp.Sample dimension, test method |
Standard technical specification |
| 12 ↓ |
finish machining |
machining tool |
Dimension,appearance | finish machining drawing |
| 13 ↓ |
UT | UT equipment | Single defect, concentrated Defects bottom wave attenuation |
UT standard or customer's technical requirements |
| 14 ↓ |
MT | MT equipment | Magnetic particle indication |
Test standard or Technical requirements |
| 15 ↓ |
Mark | Steel seal | marking content | Product standard Technical requirements Forging process |
| 16 ↓ |
Final inspection |
Appearance, dimension, mark acceptance inspection |
Product inspection specification Product standard P.O. |
|
| 17 | Protection/ package |
Blasting Blasting equipment |
appearance coating thickness |
Product standard Technical requirements |
Forging Process:
Testing and Inspection:
Packing and Delivery
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