| After-sales Service: | Online Supporting Service |
|---|---|
| Warranty: | 12 Months |
| Material: | Astma-27 Grade 70-40 Class 1 |
| Heat Treatment: | Q.T |
| NDT: | ASTM E-709 and ASTM E-125 |
| Yield Strength: | >275 MPa |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier Ball mill end cover:
1. Material: ASTMA-27 grade 70-40 Class 11. Material: ASTMA-27 grade 70-40 Class 1
2. Mechanical Property
| Yield Strength | ≥275 MPA |
| Tensile Strength | ≥485MPA |
| Elongation | ≥22MPA |
NO |
Item | structural features | processing measure | Test content |
| 1 | cylinder | (1) massive structure (2) L flange (3) finite element analysis (4) Surrounding the manhole mechanical processing |
(1)union melt welding (2) Whole annealing after welding (3) polishing treatment (4) Processing and ensure that both ends of the positioning alignment |
(1) Material certificate, review material machinery performance and chemical composition (2) Cutting edge around the ultrasonic flaw detection (3) Weld ultrasonic testing |
2 |
End cap and Hollow shaft |
(1) High quality cast steel (2) R rounded corners (3) High strength bolts connected to the cylinder |
(1) Molten steel refining outside the furnace (argon blowing and R - H vacuum processing) (2) Modelling using special sand, strict control of pouring temperature and casting speed (3) Shaft processing, assurance and coaxial degree and the roughness of the face |
(1) Mechanical properties and chemical composition of casting billet (internal control standard) (2) Ultrasonic testing after rough machining (3) Ultrasonic testing and magnetic particle inspection after finishing |
Suppliers with verified business licenses
Audited Supplier 
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