Cathode Drum with 3.6 meters The biggest side in the word for
Copper Foil Equipment
Technical Point:
The cathode drum plays a pivotal role in the production of
electrolytic copper foil, with the crystal structure on the drum's
surface directly influencing the crystalline state of the copper
foil. During this process, if the titanium layer on the cathode
drum exhibits high surface roughness and grain size, it results in
a finer grain size of the copper foil, enhancing its ultra-thin
toughness and other desirable properties.
Production and Processing Method:
The manufacturing process of the titanium layer on the cathode drum
primarily involves welding, spinning, and other techniques. The
innovative "ring rolling" technology, which combines forging and
rolling, effectively meets the microstructural morphology and
mechanical property requirements. This technology significantly
improves the production quality of the titanium layer, thereby
enhancing the overall quality of the deposited copper foil. It
ensures the fineness and uniformity of the microstructure on the
titanium surface, leading to consistent grain size. Analysis and
comparison of relevant research indicate that this technology is
crucial for the direct production of titanium rolls. It provides
valuable insights for the future application of larger-scale
"large-diameter, thin-walled, high-cylinder" spinning titanium
rolls, supporting the rapid development of industrial production of
cathode drums.
Our Cathode Drum total have 3 layers, first layer Stainless steel,
second layer copper, the third layer GR1 pure titanium. The third
layer titanium ring is seamless, The last layer is a seamless
titanium ring. The cathode drum with a seamless ring produces
higher quality copper foil.
Below specification of the cathode drum:
| Equipment | Specification |
| Drum Diameter | 1500mm, 2016mm, 2700mm, 3000mm, 3600mm |
| Drum Width | 1000mm to 2000mm |
| Copper Foil thickness | 3.5 to 105μm |
| Static balance | <3N.M |
| Metarial of titanium ring | TA1 / GR1 |
| Ring Thickness | >10mm (0,+0.5) |
| Grain size grade | ASTM≥10-12 Level |
| Arc coaxiality | ±0.05mm |
| Straightness | ±0.05mm |
| Cathode drum surface | No needle holes, no pressure marks, no scratches |
| Cathode drum surface roughness | Ra 0.3 μm |
| Edges and planes of cathode drum are kept at right angles and acute
angles |
| Side plate uses HPVC/CPVC and has no side plate deformation |
Seamless titanim ring, last layer of the cathode drum
Finished goods
Full system of the copper foil equipment.
