When using alkaline zinc plating additives, what is the relationship between current density and temperature?

2026-01-29 08:59:08

During the application of alkaline zinc plating additives, in order to ensure the quality of the coating, it is essential to strictly follow the process conditions. Any slight oversight may lead to quality problems. For instance, the control of solution temperature and current density is of great significance. Additionally, one must understand that a change in one process condition requires corresponding adjustments to the other. Specific examples are as follows.

According to the temperature of the plating solution, the electroplating factory needs to adjust the appropriate current density. When the temperature is slightly low, we should appropriately increase the current density; when the temperature is a little high, we need to slightly reduce the current density.

When using alkaline zinc plating additives, if the current density is too low, the current density in the lower area of the workpiece will be far below the process requirements. At this time, the coating on this part of the workpiece will appear dark and grayish-black, and in some cases, no coating will be deposited at all.

When the temperature of the plating solution is too low, although it has little effect on the dispersion ability, it will reduce the upper limit of the allowable current density, resulting in a slower plating speed. In this case, if the temperature is not increased, the only option is to extend the plating time. When the temperature of the plating solution is too high, the dispersion ability will significantly decrease.

Many electroplating factories fail to pay sufficient attention to the two key process conditions - solution temperature and current density. As a result, they have to undergo multiple rework processes, which not only affects product quality but also delays the production cycle. Therefore, when customers use the alkaline zinc plating additive from Bigely, they can receive technical guidance from Bigely engineers. This can prevent the occurrence of this problem.

Why can you trust Bigely?

Guangdong Bigely Technology Co., Ltd. ,founded in 2003, is a high-tech enterprise integrating R & D,production, sales and service, specializing in the production of electroplating additives. As a famous electroplating additives source manufacturer in China, our products are widely used to meet the plating needs of different industries and exported to many countries from all over the world. They can meet the environmental protection standard after use, mainly used in automobile parts, sanitary ware, electronic products, hardware, furniture, building accessories and other fields.

If you need our high-quality electroplating additives, please contact us. We can provide you samples for test, and also provide a series of services.