Lower pressure casting & investment casting aluminum impeller for blower fan
Aluminum alloy blower fan impeller belongs to fluid machinery components, blower fan impeller used for multistage blower, the material is aluminum alloy. The production process of blower fan impeller is plaster model lower pressure casting, the casting surface smoothness of impeller can up to Ra3.2 μm.
Our main products: blower fan impeller, blower fan, blower impeller, multistage compressor impeller, single stage compressor impeller, open compressor impeller and closed compressor impeller, fluid machinery multistage compressor impeller, compressor impeller, centrifugal compressor impeller ...
Our main casting process includes: metal mould lower pressure casting, plaster model lower pressure casting and wax model lower pressure casting...
All inspection process will be finished in our factory, including non-destructive inspection and destructive inspection:
Non-destructiove inspection: Destructiveinspection:
*Visual inspection *Tensile strength testing
*Surface defect testing *Yield strength testing
*Dye penetrant testing *Hardness testing
* Radiography testing *Chemical composition testing by spectrograph
* Ultrasonic testing
*Size testing by CMM
| Element |
C |
Cr |
Ni |
Mo |
Al |
Ti |
Fe |
Nb |
| Content |
0.08-0.16 |
11.5-13.5 |
BAL |
3.8-4.8 |
5.5-6.4 |
0.5-1.0 |
≤1.0 |
1.8-2.5 |
| Element |
B |
Zr |
Mn |
Si |
P |
S |
Pb |
Bi |
| Content |
0.008-0.02 |
0.06-0.15 |
≤0.5 |
≤0.5 |
≤0.015 |
≤0.01 |
≤0.001 |
≤0.0001 |
Audited Supplier 
Audited Supplier 
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