Chemical nickel-tin-tungsten-phosphorus-plating amorphous multifunctional alloy plating solution and plating thereof

Abstract

The invention belongs to the field of chemical plating and particularly relates to a chemical nickel-tin-tungsten-phosphorus-plating amorphous multifunctional alloy plating solution and plating thereof. The chemical nickel-tin-tungsten-phosphorus-plating amorphous multifunctional alloy plating solution comprises following components: NiSO4.6H2O.NaH2PO2.H2O.SnCl4.3H2O, tungsten salt, NSWP synergist, complex carboxylic acid complexant, amidogen catalyzed complexant, a surface active agent and water; and the NSWP synergist is composed of ammonium sulfate, ammonium chloride, ammonium acetate, tetrabutylammonium hydrogen sulfate, sodium fluoride, sulfated castor oil and the like. The plating solution is very high in stability and very large in deposition velocity; and pinhole defects caused bythe plating solution are prevented, the plating solution can be attached to a base material better, and the plating is not prone to falling off. The invention further provides the plating of the plating solution. The plating is high in abrasion resistance, tenacity and ductility, and the resistance to corrosion of hydrogen sulfide, chloride and carbon dioxide is improved.

Description

technical field [0001] The invention belongs to the field of electroless plating, and in particular relates to an electroless nickel-tin-tungsten-phosphorus amorphous multifunctional alloy plating solution and a coating thereof. Background technique [0002] Electroless plating of multi-element nickel-tin-tungsten-phosphorus alloy coating is also deposited in nickel salt solution without current and easy to operate; it can be deposited on the surface of metal or non-metal materials of different shapes; the coating is amorphous Structure, dense and non-porosity, corrosion resistance, high wear resistance, non-magnetic; and has a good decorative effect. It is widely used in electronics industry, automobile industry, military industry, aerospace, petrochemical, shipbuilding, high-speed rail and other industries. Therefore, this technology has always been a hot topic of research by experts and scholars in the anti-corrosion industry. How to obtain ideal metamaterials on the bas...

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Problems solved by technology

[0008] The disadvantage of the above-mentioned patented technology is that in the case of poor control, the coating is prone to roughness and quality degradation, and the ductility of the coating is greatly improved, but the hardness and wear resistance are reduced, which has certain limitations in the use in abrasive corrosion environments properties, such as: used in oil well pipes in the petroleum industry, due to different oil production blocks, its sand content is different, in high sand content abrasive corrosion environment, it is necessary to use the erosion resistant Ni-Sn-W-P non-woven fabric of the present invention Crystalline alloy coating, otherwise the anti-corrosion and wear-resistant effect of the coating will fail

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