Ferroboron chemical plating liquid as well as ferroboron coating material and preparation method thereof

Abstract

The invention relates to ferroboron alloy electroless plating solution, ferroboron alloy plating material of the ferroboron alloy electroless plating solution and a method for preparation thereof. The electroless plating solution contains ferrous sulfate 15-30g, potassium sodium tartrate 70-90g, sodium hydroxide 25-40g, potassium borohydride 1-5g and rare earth compound 0.1-1.2g in distilled water each liter. The ferroboron alloy plating material is the ferroboron alloy plating material which contains rare earth elements, a plating layer contains the rare earth elements 0.8-1.6wt% and boron 0.9-1.4wt%, and the allowance is ferric, the method comprises following steps: hanging a copper substrate into the electroless plating solution whose temperature is 40-60DEG C after pickling, washing with water, drying, sensitizing with ultrasound and activating with the ultrasound, and using aluminum wires or aluminium sheets with high purity to couple with workpieces. The method of the invention utilizes pretreatment (sensitizing and activating with the ultrasound) and the modification effect of the rare earth elements to solve the stability problem of the electroless plating solution and to form a qualified electroless plating Fe-B-RE alloy plating layer, and the performance of the reproducibility of the alloy plating layer is good.

Description

1. Technical field [0001] The invention relates to a plating solution for plating on the surface of copper and other substrates and a plating material prepared by the plating solution, in particular to an electroless plating solution and its plating material, to be precise an iron-boron alloy chemical plating solution And its iron-boron coating material. 2. Background technology [0002] Fe-B alloy has good magnetic properties and wear resistance, etc., and has been widely used in national defense, military industry, aerospace, electronic information, medical equipment and other industries. Fe-B alloy coatings can be prepared by methods such as vapor deposition, electroplating, chemical plating, and mechanical alloying. Among them, chemical plating has the characteristics of simple operation, low cost, continuous production, uniform coating, and high consistency. A more efficient process method. [0003] Compared with electroless nickel plating, electroless copper plating,...

AI Technical Summary

Problems solved by technology

[0005] The electroless iron plating solution containing multiple elements has poor stability and changes in magnetic properties

Or only use aluminum and copper sample to contact to form a galvanic couple, change the electrode potential of the sample, reduce the polarization resistance, and induce the chemical deposition of the Fe-B alloy, but the plating solution directly contacted with the copper-aluminum couple reacts violently and the stability decreases , the coating is difficult to form

The above studies all have problems such as poor stability of the plating solution, difficulty in process maintenance, and inability to obtain electroless Fe-B alloy coatings under normal conditions. It is difficult to form uniform and consistent electroless Fe-B alloy plating under large-scale industrial conditions. coating, and the reproducibility is poor, which restricts the practical application of electroless Fe-B alloy plating

Images