| 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 |
Mill Frequently Used Steel Materials:
1) Wind Power Shaft: 42CrMo4V, 34CrNiMo6; Wind Power Flange: S355NL, C22, 16Mn, 20Mn, 42CrMo, F304.
2) Forged Pipe Fittings: SA106 CL B, SA106 CL C, WB36, 12Cr1MoV, SA335 P11, P12, P22, P91, SA182 Gr. F1, Gr. F5, Gr. F11 CL2, Gr. F12 CL2, Gr. F22 CL3, SA350 Gr. LF1, Gr. LF2,
Gr. LF3.
3) Pressure Vessel Forgings: SA105, SA350 LF2, 16Mn, 20MnMo, 15MnMo, 12Cr2Mo1, 14Cr1Mo, F304, F316, 17-4PH.
4) Shaft Related Forgings: 25CrMo4, 42CrMo4, 40CrNiMo, 34CrNi3Mo, 25Cr2Ni4MoV, 18CrNiMo5, 30CrMo, 4130, 4140.
5) Gear Related Forgings: 35CrMo, 34CrMo4, 4137, 42CrMo, 4140, SCM440, 20CrMnMo, 40CrNiMo, 20CrNi2Mo, 20Cr2Ni4A, 34CrNi3Mo.
6) Copper Forgings: C10100, C10200, C10300, C10700, C12000, C12200.
Forging Production Flow
Enquiry With Drawing In Details
Confirm Steel Material, Chemical Compositions, Mechanical Properties, Tolerances
Confirm Payment Terms, Order Materials or Check Material in Stock
Check Material Chemical Compositions, Material Weight, Dimensions
Cut Materials, Record Weight, Pre-Heating For Forging
Forging Ratios, Heat Treatment After Forging, Dimension Check
Rough Machining, UT Test, Heat Treatment
Fine Machining, UT & PT Test, Dimensions Inspection, Mechanical Properties Test
Customer Inspection at Site, Packing, Delivery Arrangement
Balance Payment Confirmation, Dispatch Forgings or Castings
Bill of Loading Confirmation, MTC Dispatch, Customs Clearances
Order Accomplished
