How to Improve Industrial Processes by Electroplating 

 Electroplating is a highly preferred metal finishing process used by various industries for various applications. It involves the deposition of suitable metals with the help of an electric current. This process creates a thin, protective layer over the substrate and changes the physical properties of the material. Some of the common uses of electroplating include increasing the substrate’s thickness, resistance to corrosion and wear, and even aesthetic appeal.  

Though the electroplating technology appears quite complex, the process is actually a century old one. However, it has evolved over the years to keep up with the advances in manufacturing practices.  

The Process 

Electroplating dissolves a metal using electric current and deposits it onto a surface. The four primary components of this process include anode, cathode, solution, and power source. The positively charged electrode or anode is the metal responsible for creating the plating. Cathode, on the other hand, is the material that needs to be plated. In the circuit, it functions as a negatively charged electrode. The reaction takes place in an electrolytic solution comprising one or more metal salts. A power source is used to apply current to the anode.   

Once the two electrodes placed in the solution are connected, a direct current (DC) is supplied to the anode. As a result, the metal gets oxidised, which allows the positive ions of the metallic atoms to dissolve in the electrolytic solution. Then, the current forces the metal ions to move towards the cathode and deposit there in the form of a thin layer. 

Electroplating can be done using individual metals as well as metals in various combinations commonly known as alloys. Some of the commonly used metals for electroplating include copper, zinc, nickel, tin, silver, gold, and palladium.  

Industrial Application 

Whether you need increased durability, higher corrosion protection, or better electrical conductivity, electroplating can be an excellent solution. That’s why a variety of industries use electroplating to improve their processes and protect their assets.  

Automotive: Zinc-nickel plating is used extensively to prevent corrosion. 

Electronic: Gold plating is applied to semiconductors and connectors to enhance their conductivity. Electronic components also use palladium alloys as protective coatings.    

Medical: Metal electroplating is often used in the medical equipment industry to enhance the biocompatibility of different components such as implants. Titanium, silver, and gold not only improve biocompatibility, but also offer additional benefits such as resistance to hardness, corrosion, and wear.  

Aerospace: Titanium plating is used frequently in manufacturing aircraft because of its high strength-to-weight ratio. This industry also uses nickel plating for protection against corrosion and wear. Moreover, copper plating is also used for better heat resistance.  

Oil & Gas: Owing to the nature of petrochemicals, corrosion protection is a huge concern for this sector. Nickel plating is a good option for protecting pipelines as well as other components used in the oil and gas industry.  

Importance of Inspection 

Just like any other metal plating process, periodic inspections are paramount for electroplating. Once the plating process is complete, thorough visual and microscopic inspections must be conducted to detect defects such as cracks, pinholes, or rough spots. By identifying these defects early, it is possible to prevent expansive reworks.    

At Coating Management Solutions, we have a team of certified NACE CIP Coating inspectors, offering world-class inspection services for electroplating, hot dip galvanisation, fireproofing, insulation, concrete, and more.