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The chemical nickel plating of neodymium magnet parts mainly adopts the acidic chemical nickel phosphorus alloy plating process with high phosphorus content. It has the following advantages:
1) The coating has high corrosion resistance and does not require an excessively thick coating to avoid affecting the magnetic properties of the magnet;
2) Most importantly, the high phosphorus chemical nickel layer (with a phosphorus content exceeding 8%) has non magnetic properties, which is beneficial for maintaining the magnetic properties of the magnet;
3) The magnets of neodymium components usually have characteristics such as deep holes, blind holes, and grooves, making it difficult to strike a balance between the coating thickness and anti-corrosion ability when electroplating nickel. Chemical nickel plating can achieve advantages such as thin coating, low magnetic shielding, and high corrosion resistance, making it an ideal choice for surface treatment of neodymium magnets.
The chemical nickel plating of neodymium magnet parts usually adopts the high phosphorus alloy process commonly used in other industries. This process has a higher operating temperature (85-92 ℃) and is more suitable for hanging plating.
