Precautions for electrode use:

1. After oxidation sintering, the titanium electrode has a black surface, and the uncoated surface appears blue without electrode performance. The black side corresponds to the cathode for use.

2. Once the titanium electrode substrate is pickled, strict care must be taken in all subsequent production, processing, and usage processes. When moving, wear clean gloves to clamp the anode at both ends or edges, and it is best to contact the uncoated part. The coated surface must not be scratched by any foreign objects. Be careful during installation and handling, and the coating surface must not be scratched, otherwise local corrosion may occur quickly.

Note: The titanium substrate itself is not conductive, and its outer layer coated with precious metal oxide coating has electrocatalytic activity, conductivity, and oxidation resistance. However, its thickness is only about 20 microns. If it is scratched or damaged, the electrode will first corrode from the damaged area during the electrolysis process, which will affect the quality and effectiveness of the entire electrode.

3. The electrolyte should maintain stability, especially without containing cyanide and fluoride ions, which can seriously corrode the titanium matrix; Affects the service life of the anode.

4. Before the electrolyte enters the electrolytic cell, a filtering device should be added, and it should not contain metal particles with a diameter greater than 0.1mm to prevent excessive aggregation and cause short circuits between the anode and cathode. Shielding anode performance. If there is scaling on the electrode plate, it needs to be cleaned with dilute hydrochloric acid and should not be brushed.

5. When electrolyzing and recovering metals such as copper, nickel, gold, silver, cobalt, etc., the cathode attachment should not be too thick to prevent short circuit breakdown of the anode and cathode due to small pole spacing or metal spikes. Regular cleaning of the groove is required.

6. The distance between the anode and cathode can be set according to actual production, generally between 5-25mm. Overall, the pole distance will increase the voltage drop, but it should not be too small, otherwise the cathode scale generated on the cathode surface can easily cause a short circuit on the electrode plate; So the design of pole spacing needs to be determined based on the structural state of the product.

7. Avoid reverse polarity use. Once used as a cathode, precious metal oxide coatings undergo a reduction reaction on the surface, which can easily transform into metallic elements and fail to effectively bond with the titanium substrate, resulting in coating detachment.

8. It is not advisable to immerse the machine in solution for a long time in power-off mode during shutdown. It is best to load a small current of about 5a to protect the electrode plate.

9. During shutdown or other maintenance conditions, add dilute acid or clean the electrode surface with clean water, but do not use nylon or mechanical substances to flush.

10. The temperature of the electrolyte should not be too high during operation, with an ideal temperature of 25-40 ℃. If possible, a heat exchange device can be added to maintain the optimal electrode usage environment.

11. The normal working current density is within 2000a/m2, but excessive current causes too intense reaction, coating detachment, and shortens the anode life;

12. When starting up, gradually load the current to the electrolytic cell, do not raise it all at once, and the same applies when shutting down.

13. Keep the anode clean during production and use, and avoid contamination with oil or other attachments to avoid affecting the electrolysis effect and electrode life.

14. Anodes have life, ensuring production stability is more beneficial for extending the service life. If the coating on the anode falls off, it is necessary to repair the coating in a timely manner to avoid excessive tank voltage.