Girth gear is key part of rotary kiln and ball mill. High quality for girth gear is required for long time operation requirement.
Advantages
1. Special Heat Treatment Technology
Great Wall Steel Casting adopts special heat treatment technology to optimize structure, improve hardness and enhance impact resistance of girth gear.
2. Long Service Life
Great Wall Steel Casting adopts high strength steel to produce girth gear. Firstly characteristics optimization of rotary kiln is done to guarantee its stability during long time operation, also to prolong its working life.
3. Factory Price Custom&Quick Delivery
Great Wall Steel Casting has strong steel casting production capability, and it can provide girth gear in large quantity with short period.
Treatment Technique
1. Shot peening
2. Bluing
3. Phosphating
4. Nickel-plated
5. Zincing
6. Heat treatment
7. Carburzing
8. Quenching
9. Tempering
10. Oiling
11. Greasing
12. Special color
13. Stain proofing
14. Pre-stretched and anti-fatigue
Testing Process
QA DOC: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report
The data on chemical composition report and mechanical properties report are approved by third party, Luoyang Ship Material Research Institute, CSIC.
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.
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