Formulation process of iron-nickel alloy electroplating solution

Characteristics: (1) High iron content, the iron content of the coating is between 40% and 60%, and the composition can be made according to actual requirements Adjustment. The iron content is high, and the nickel saving effect is remarkable.

(2) The microstructure of the coating is amorphous with nanocrystalline structure. Good corrosion resistance, the single coating can withstand 8h neutral salt spray.

(3) As a base layer, after being compounded with other plating layers, it has a good protective performance on the base material.

(4) As a bottom layer, it has good bonding force with other metals.

(5) The flexibility is good, and the 20 μm coating film will not break after repeated discounting.

(6) The hardness of the coating is relatively high, with Vickers hardness of 450~550HV.

The structure of the iron-nickel alloy obtained by the electroplating iron-nickel alloy surface treatment process of this product is an amorphous inclusion nanocrystalline coating. The surface of the coating is flat and uniform, with fine crystals and fine granularity.

The iron-nickel alloy coating of this product contains 40% to 60% of iron. It can be used in conjunction with other coatings and has excellent corrosion resistance and mechanical properties. It can be used as a primer instead of plating. The nickel process is well applied.

Compared with the nickel plating process, the coating obtained by this product has a more superior cost performance, has the same performance and greatly reduces the production cost.

Usage and usage The iron-nickel alloy coating of this product can be used as a primer layer, combined with the chromium layer, copper layer, and tungsten alloy coating. Such as iron-nickel/copper/iron-nickel/chromium composite plating, semi-bright iron-nickel/bright iron-nickel/chromium three-layer plating, iron-nickel/tungsten alloy plating, etc.

Plating method: In the electroplating process, the workpiece is used as the cathode, using a high-frequency switching power supply, electroplating at a current density of 5-10A/dm2 to obtain an iron-nickel coating, using Ti-oxide inert anode.

The iron-nickel alloy obtained has an iron content of 40% to 60%, and the balance is nickel.

The said main salt is supplemented by an automatic supplement device, which can be automatically supplemented on time to reduce human error.

Ti-oxide inert anode is an oxide inert anode composed of a Ti-matrix and an electrochemically active layer of iridium and tantalum oxides covering it.

The preparation of the Ti-iridium and tantalum oxide inert anode is: preparing an alcohol solution of chloroiridic acid and tantalum chloride, coating it on the surface of pure metal titanium, and baking it at a high temperature (80～500℃) Afterwards, an oxide inert anode composed of a Ti substrate and an electrochemically active layer of iridium and tantalum oxides covering it is obtained.

The characteristics of this process are: the plating solution does not contain chlorine ions, and no toxic chlorine gas is generated during the electroplating process; the anode adopts Ti-oxide inert anode, and the replenishment adopts automatic replenishing device, and the solution composition is stable. The coating has good compactness, strong corrosion resistance, and high iron content in the coating, which can effectively save nickel resources.

Recipe (g)

Production method: Dissolve each component in water and mix well.