| Application: | Machinery, Ball Mill and Rotary Kiln |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Gear Position: | External Gear |
| Manufacturing Method: | Cast Gear |
| Toothed Portion Shape: | Spur Gear |
| Material: | Cast Steel |
| Customization: |
|---|
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| Specification | Machining Scope |
| Size | OD Max 16m |
| One Piece of Gear: OD Max 13m | |
| Assemble Gear: According to drawings | |
| Hobbing Modulus | 10-60 |
| Milling Modulus | Up to 120 |
| Spiral Modulus | 1-15 |
| Accuracy Grade | Milling: 6 grade |
| Hobbing: 8 grade | |
| Material | Alloy steel: 42CrMo4, 34CrNiMo6 etc. |
| Carbon steel: C45E, 1030 | |
| Carburizing steel | |
| Quenched and tempered steel | |
| Heat treatment | Quenching & Tempering, Surface Quenching |
| Teeth Profile | Spur, Helical, Herringbone, Crown, Spiral, Worm and shaft |
| No. | Item | Inspection Area | Acceptance Criteria | Inspection Stage | Certificates |
| 1 | Chemical Composition | Sample | Material Requirement | When Smelting After Heat Treatment |
Chemical Composition Report |
| 2 | Mechanical Properties | Sample(Test Bar on the Gear Body) | Technical Requirement | After Heat Treatment | Mechanical Properties Report |
| 3 | Heat Treatment | Whole Body | Manufacturing Standard | During Heat Treatment | Heat Treatment Report Curves of Heat Treatment |
| 4 | Hardness Test | Tooth Surface, 3 Points Per 90° | Technical Requirement | After Heat Treatment | Hardness Teat Report |
| After Semi Finish Machining | |||||
| 5 | Dimension Inspection | Whole Body | Drawing | After Semi Finish Machining | Dimension Inspection Report |
| Finish Machining | |||||
| 6 | Magnetic Power Test (MT) | Tooth Surface | Agreed Standard | After Finish Gear Hobbing | MT Report |
| 7 | UT | Spokes Parts | Agreed Standard | After Rough Machining | UT Report |
| After Welded | |||||
| After Semi Finish Machining | |||||
| 8 | PT | Defect Area | No Defect Indicated | After Digging After Welded |
PT Record |
| 9 | Mark Inspection | Whole Body | Manufacturing Standard | Final Inspection | Pictures |
| 10 | Appearance Inspection | Whole Body | CIC's Requirement | Before Packing (Final Inspection) |
|
| 11 | Anti-rust Inspection | Whole Body | Agreed Anti-rust Agent | Before Packing | Pictures |
| 12 | Packing Inspection | Whole Body | Agreed Packing Form | During Packing | Pictures |
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