Electrolyte action

Electrolyte is the medium used in chemical batteries, electrolytic capacitors, etc. (with certain corrosiveness), providing ions for their normal operation. And ensure that the chemical reactions that occur during work are reversible.

There are many benefits to using electrolytes as cathodes. Firstly, the large contact area between the liquid and the medium is helpful in increasing the capacitance. Secondly, electrolytic capacitors made with electrolytes can withstand high temperatures up to 260 degrees Celsius, which can be achieved through wave soldering (an important process in SMT surface mount installation), and also have strong voltage resistance.

In addition, electrolytic capacitors using electrolytes as cathodes can self heal as long as the breakdown current is not sustained after the dielectric is broken down. But electrolytes also have their shortcomings. Firstly, it is prone to volatilization and leakage in high temperature environments, which has a significant impact on its lifespan and stability. Under high temperature and pressure, the electrolyte may also vaporize instantly, increasing in volume and causing explosions (commonly known as slurry explosions); The second is the ion conduction method used in the electrolyte, which has a very low conductivity of only 0.01S (conductivity, reciprocal of ohms)/CM, resulting in a particularly high ESR value (equivalent series resistance) of the capacitor

usage method

The original solution is used, with a lead plate as the cathode (negative electrode) and the workpiece as the anode (positive electrode), at 60-65 degrees Celsius, with a current density of 10-25 amperes per square decimeter, a voltage of 8-10 volts, and a duration of 5-8 minutes.

matters needing attention

1. The polishing solution will produce foam when it is used for electrolytic polishing at the initial stage, so the distance between the liquid level of the polishing solution and the top of the polishing tank should not be less than 15cm.

2. Before entering the polishing tank, the residual moisture on the surface of stainless steel workpieces should be removed as much as possible. Excessive moisture carried by the workpiece may cause serious pitting on the polishing surface, local erosion, and result in the workpiece being scrapped.

During the electrolytic polishing process, the stainless steel workpiece serving as the anode continuously transforms its iron and chromium elements into metal ions that dissolve into the polishing solution instead of depositing on the cathode surface. As the polishing process progresses, the concentration of metal ions continues to increase. When it reaches a certain value, these metal ions continuously precipitate from the polishing solution in the form of phosphates and sulfates, settling at the bottom of the polishing tank. For this reason, the polishing solution must be filtered regularly to remove these solid precipitates.

4. During the operation of the polishing tank, water is lost due to evaporation and electrolysis, except for the continuous consumption of phosphoric acid and sulfuric acid. In addition, high viscosity polishing solution is constantly carried and lost by the workpiece, and the polishing solution level keeps decreasing. It is necessary to regularly add fresh polishing solution and water to the polishing tank

5. Neutralized emissions meet current environmental requirements.

6. This product is corrosive. Do not enter the eyes or mouth, and do not touch the skin. If accidentally touched, rinse immediately with clean water. In severe cases, seek medical attention for burns caused by strong acid;

7. Store in a sealed and cool place for long-term effectiveness