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Hot Forging AISI4140 42crmo4 SCM440 1.7225 Steel Retaining Ring
Delivery Standards & sizes:
Main use:
1)Checking the raw material after they reach our factory------- Incoming quality control ( IQC)
2) Checking the details before the production line operated
3) Have full inspection and routing inspection during mass production---In process quality control(IPQC)
4) Checking the goods after they are finished---- Final quality control(FQC)
5) Checking the goods after they are finished-----Outgoing quality control(OQC)
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 |
Forged seamless rings up to 2000mm OD and 500mm face height can be manufactured contoured rolled /profiled to save material and machining costs.
Materials:
High yield steels, carbon steels, stainless steels, duplex steels, alloy steels, nickel alloy steels,
All seamless rolled rings can be supplied with weld overlay inclusive Titanium, accordingt o your specifications
The strict use of high quality raw material is guaranteed and proved by raw material certificate with each delivery.