Audited Supplier
MQG
Machinery, Industry
According to Customers' Requirements
Internal Gear
Cast Gear
Spur Gear
Cast Steel, Forged Steel
Circular Gear
Henan
Product Description
Cement industrial Rotary kiln tyre girth gear casting iron gear ring large big ball mill spur gear wheel
Process:
Forging/Casting
Normalizing&Tempering-Proof Machinnig
Quenching&Tempering
Finish Machining(Teeth Grinding)
We can offer you in various process conditions Solutions for Many End Markets and Applications
--Mining
--Metallurgy
--Power Generation
--Cement Plant
--Port Machinery
--Oil and natural
--Paper making
--OEM gear case
--General Industrial
Inspection and Test Outline of Girth Gear:
Testing Process:
· QA DOC: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report
· UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc.
· Heat Treatment Report: provide original copy of heat treatment curve/time table.
Our minimum order quantity typically ranges from 5 to 100 pieces, depending on the product and material.
2. Can you provide custom designs?
Yes, we specialize in providing custom designs based on your specific requirements.
3. What is your production capacity?
Our production capacity varies depending on the product and material, but we have the capability to produce millions of pieces per year.
4. What is your lead time for orders?
Our lead time for orders is typically 4-6 weeks for production and delivery.
5. Do you offer quality control and testing?
Yes, we have strict quality control measures in place and offer testing services, including non-destructive testing, to ensure the quality of our products.
Process: Forging/Casting
Normalizing&Tempering-Proof Machinnig
Quenching&Tempering
Finish Machining(Teeth Grinding)
We can offer you in various process conditions Solutions for Many End Markets and Applications
--Mining
--Metallurgy
--Power Generation
--Cement Plant
--Port Machinery
--Oil and natural
--Paper making
--OEM gear case
--General Industrial
| 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 |
Testing Process:· QA DOC: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report
· UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc.
· Heat Treatment Report: provide original copy of heat treatment curve/time table.
1. What is your minimum order quantity?
Our minimum order quantity typically ranges from 5 to 100 pieces, depending on the product and material.
2. Can you provide custom designs?
Yes, we specialize in providing custom designs based on your specific requirements.
3. What is your production capacity?
Our production capacity varies depending on the product and material, but we have the capability to produce millions of pieces per year.
4. What is your lead time for orders?
Our lead time for orders is typically 4-6 weeks for production and delivery.
5. Do you offer quality control and testing?
Yes, we have strict quality control measures in place and offer testing services, including non-destructive testing, to ensure the quality of our products.
