Electroless nickel plating, as an electroplating process with excellent coating performance, plays a significant role in the fields of metal processing, aerospace industry, and electronic equipment protection. However, in the actual operation of using chemical nickel plating solution, there is always a phenomenon of high coating qualification rate. What is the reason for this? The root cause lies in the failure to properly control the process parameters.
The process parameters control in electroless nickel plating mainly includes factors such as plating solution lifespan, temperature, pH, filtration and stirring. When controlling the process parameters, it is necessary to flexibly adjust the parameters according to the purpose of the coating. Remember not to apply a one-size-fits-all approach. Next, let's specifically discuss the differences among them.
The lifespan of the plating solution needs to be determined by the technicians of the electroplating factory through chemical analysis. While replenishing the effective components, it is also necessary to detect and control the concentration of HPO3-. In the aviation industry, the mass concentration of HPO3- is usually required to be no more than 80g/L.
The working temperature range of the chemical nickel plating solution is 85 to 91 degrees Celsius. The electroplating factory needs to formulate corresponding temperature control plans based on the application scenarios of the coating.
① When it comes to repairing the dimensions of the parts, the engineers from Beggley suggest using a higher temperature so as to produce a thicker coating in the shortest possible time.
② If it is necessary to serve as a corrosion protection layer for medium and high temperatures, it is recommended to use a lower temperature to ensure that the coating is dense and free of pores.
The pH value of the plating solution significantly affects the deposition rate. The initial pH should be controlled within the range of 4.9 to 5.1. In subsequent production, it can be adjusted according to the actual situation.
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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 chemicals. As a fast growing electroplating chemicals supplier in China, Bigely has over 20 years' experience in electroplating additives production and own production base of 5000 square meters. We can produce 15,000 tons of electroplating additives every year, which can fully meet the needs of customers.
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