Parts of complex shape such as parts with deep bores, internal threads and blind holes are also not a problem with the use of electroless nickel plating.
No Current Means Even Coverage
Because the chemical reaction in the bath is of a constant thickness, high-current edges that can build up thick layers while recesses remain thin do not occur with the Electroless Nickel Plating process.
Blind Holes and Internal Threads Get Coated
Because of the way that electrolytic plating works (it uses current to plate parts) there are areas on complex shapes where it is difficult to get the current to penetrate. The electroless process on the other hand is a chemical reaction that can penetrate to all surfaces of a part, including internal threads and deep bores.
Racking and Pre-treatment Still Matter, For more on Electroless Nickel Plating, visit swmf.co.uk/surface-coatings/electroless-nickel-plating/.
Part geometry will determine how parts are racked and masked and how parts are pre-treated. Knowing wall thicknesses, and tight-tolerance bores, and areas where drainage is slow, allows us to set up your part for processing.
Choose Phosphorus Content Carefully
When choosing a Phosphorus content for wear-resistance applications (low-phosphorus) against corrosion resistance (high-phosphorus) applications, it is worth noting that high-phosphorus coatings are less magnetic than low-phosphorus. It is best to discuss your specific requirements with your supplier as the trade off may not always be worthwhile.
Find a Specialist for Complex Work
It is important to get the specification right before plunging your parts into the bath to save time and avoid expensive re-work.
Leave a Reply