In the tin plating process, the peeling off of the tin plating layer is a problem. It not only affects the appearance quality of the product, but may also have a serious impact on the performance and service life of the product. As a research and development and sales engineer of tin plating additives, I am well aware that the causes of tin plating layer peeling are complex and diverse. Below, I will provide a detailed analysis of the reasons for tin plating layer peeling and mention why Bigely tin plating additive Sn-807 should be used.
Firstly, improper pretreatment before electroplating is one of the important reasons for the peeling off of the tin plating layer. Incomplete oil removal can easily lead to a malfunction where the adhesion of the coating deteriorates. Therefore, before electroplating, the workpiece must be strictly cleaned and pre-treated to enhance the adhesion of the coating.
Secondly, inaccurate composition ratio of the plating solution is also a common cause of tin plating layer peeling off. If parameters such as the PH value of the plating solution and the concentration of major metal ions (especially tin ions and free acids) are not properly controlled, it will lead to uneven growth of the coating, thereby affecting the adhesion and stability of the coating. In addition, an increase in the content of impurity ions (such as iron, lead, copper, etc.) in the plating solution can also cause stress within the coating, leading to local fracture and peeling.
Furthermore, the selection of process parameters also has a significant impact on the quality of the tin plating layer. If the cathode current density is too high or too low, it will lead to poor coating quality and easy peeling. When the current density is too high, the coating will become rough and its adhesion to the substrate will weaken. When the current density is too low, the coating may be too thin to withstand external physical impacts.
The use of tin plating additive Sn-807 can improve the quality of the tin plating layer. This additive can optimize the composition of the plating solution, enhance the adhesion of the coating, and reduce the occurrence of problems such as bubbling and peeling.
About us
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.
