CONTENT AND FIELD OF APPLICATION
This technical specification defines the quality of impact surface treatment.
It defines:-size ranges,
- physical-chemical characteristics.
- control criteria
- control methods
- control tolerances
This term applies to the beads manufactured by fusion of mineral oxides.
Beads are designated by the letter "B" followed by a number which depends on the size range
The present document refers exclusively to the size ranges listed below, It may be possible to supply other size ranges, the specfications of which will be subjected to an agreement between the customer and the supplier.
ACCORDING TO NFL06-824
|B20||600 to 850 µm||Ceramic beads 700|
|B30||425 to 600 µm||Ceramic beads 500|
|B40||250 to 425 µm||Ceramic beads 300|
|B60||125 to 250 µm||Ceramic beads 200|
|B120||63 to 125 µm||Ceramic beads 100|
|B125||< to 125 µm||-|
|B205||< to 63 µm||-|
TYPICAL CHEMICAL ANALYSIS:
A chemical analysis by X-ray fluorescence on samply taken from the melt
|ZrO2||60 to 70%|
|SiO2||28 to 33%|