Materials:
Blank:
Rolled Pb-Sn1.5%-Ca0.08% alloy
Hanger bar:
ETP Copper with Pb-Sb6% coating
Structure:
Pb alloy rolled plate
With uniform crystal structure, it is better for anti-corrosion and mechanical performance stability.
Hanger bar
It is certain mm thick, Pb cladding around Sn electro-plating on copper bar, and has better corrosion resistance to acid mist during electro-winning process.
Lead alloy anodes
are permanently installed in the electrolytic cell to form electrode pairs with
cathodes. The cells are electrocally connected in series and a voltage is
aplied across the anode-cathode pair to produce Copper on cathode by
electro-winning. During this process, oxygen is evolved at the anode surface.
Loaded cathodes
are periodically removed from the electro-winning electrolytic cells by a
lifting bale and overhead crane for stripping cathode. Blank cathodes are then
returned to electro-winning electrolytic cells with the lifting bale and the
process is repeated.
The anode raw material specifications are as
below:
Table 1-1 Pb grade (GB/T 469-2005)
Pb
≥99.994%
Bi
≤0.001%
Ag
≤0.0002%
Zn
≤0.0003%
As
≤0.0004%
Sn
≤0.0004%
Sb
≤0.0004%
Ti
≤0.001%
Fe
≤0.0005%
Cu
≤0.0004%
Table 1-2 Cu conductive bar grade (ETP)
Grade
ETP
Vickers-hardness
107
tensile
strength
35.8kg/mm2
Stretch
16.2%
Item |
Parameter |
Blank material |
Pb-Sn-Ca |
Blank size |
990*960*8 mm |
Hanger bar size |
1325*50*30 mm |
Anode service life |
3 years min |
Blank length error |
≤±2 mm |
Blank width error |
≤±2 mm |
Blank thickness error |
≤±0.5 mm |
Blank diagonal length error |
≤±3 mm |
Surface |
Smooth, no bubble & included slag & overlying grains |
An electrical conduction performance check.
As above measures, the anode has below advantages:
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