The main points of the design of conventional plating hangers
What are the main points of the conventional plating hanger design: ①The material used to make the hanger should be stable and insoluble in the solution. ②There should be good contact measures between the hanger and the plated parts and the pole, especially the hanger with light-weight parts. ③The main pole and support pole combination…
How can the hanger material be insoluble and stable in the solution?
It is more difficult to choose the one that is absolutely stable and insoluble in the plating solution, because in addition to this requirement, the strength and conductivity of the rack material must also be considered. Therefore, it is difficult to fully meet the requirements, but corresponding measures can be taken, such as wrapping the…
The principle of hanging the workpiece on the hanger
The suspension method of the workpiece on the hanger depends on the size, shape and process requirements of the workpiece. The general principle is: most of the surface of the workpiece, especially the working surface of the decorative part, should face the anode, or the part where the current cannot be naturally distributed must not…
How to determine the anode area when the cylindrical workpiece is coated with the cavity?
When plating cylindrical workpieces, a combined cathode and anode hanger must be used. This can fix the position between the cathode and anode, avoid short-circuit and burn the workpiece, and maximize Increase the effective area of the anode to the limit. Increasing the anode area can prevent trivalent chromium from accumulating too quickly for chromium…
How to consider the loss of plating solution in the design and use of plating racks?
In the electroplating process, the plating solution is not only an important production resource, but also an important source of pollution that causes environmental pollution. For this reason, the entire design and use of the electroplating hanger should pay great attention to the loss of plating solution, and the following aspects need to be paid…
How to remove the thick coating on the plating rack?
There will be a variety of unfavorable consequences when the coating on the hanger is too thick. The main ones are as follows. (1) Imprints will appear on the hooks of the plated parts Because the hook becomes thicker at the contact area of the plated part and the hook, the covered surface of the…
The reason why the plating layer around the plating part is extremely thin
The plating around the plating parts is not easy to deposit. The reason may be that the hanger has over-corroded during deplating. The hanger has severe hydrogen evolution during electroplating, and the hydrogen overpotential is too low. Thereby affecting the normal deposition of the coating. For this reason, this point should be fully considered when…
Ytterbium-added nickel-phosphorus alloy electroplating bath
◇Characteristics: Ytterbium ion and ammonium bifluoride are added to the electroplated nickel phosphorus alloy. Ions make the solution efficient and stable, and ammonium bifluoride plays a better buffering effect, keeping the pH value of the solution constant, so the obtained coating is uniform and dense, with the advantages of high hardness and good corrosion resistance.…
Formulation process of iron-nickel alloy electroplating solution
Characteristics: (1) High iron content, the iron content of the coating is between 40% and 60%, and the composition can be made according to actual requirements Adjustment. The iron content is high, and the nickel saving effect is remarkable. (2) The microstructure of the coating is amorphous with nanocrystalline structure. Good corrosion resistance, the single…
Main pole and support pole combined electroplating hanger
Because the combination of the main pole and the supporting pole combination hanger is beneficial to improve work efficiency, it is suitable for copper plating, Nickel plating, zinc plating, tin plating and other general plating types are not suitable for chrome plating, Black nickel plating, etc. need to be clamped, otherwise the support rods need…