Nickel-phosphorus alloy electroplating solution and use method thereof

A nickel-phosphorus alloy and electroplating solution technology, which is applied in the field of nickel-phosphorus alloy electroplating solution, can solve the problems of large surface roughness of hydraulic piston rods, poor corrosion resistance of chrome-plated piston rods, etc., and achieve good bonding force, excellent corrosion resistance, The effect of increasing the degree of polarization of the cathode
CN102409375AInactive Publication Date: 2012-04-11GUANGZHOU HAIZHU DISTRICT JINSUIDA SURFACE TECH DEV CENT
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGZHOU HAIZHU DISTRICT JINSUIDA SURFACE TECH DEV CENT
Publication Date
2012-04-11
Estimated Expiration
Not applicable · inactive patent
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Abstract

The present invention discloses a nickel-phosphorus alloy electroplating solution. The solution comprises the following components: 200-250 g / L of nickel sulfate, 35-45 g / L of nickel chloride, 38-42 g / L of boric acid, 50-70 g / L of Sodium hypophosphite, 34-47 g / L of ammonium bifluoride, 1-2 g / L of a soluble salt of rare earth and 0.08-0.12 g / L of a surfactant. According to the present invention, a certain amount of rare earth elements are added to the electroplating solution of the present invention so as to significantly improve properties of the electroplating solution, the cathode polarizability during the electrodeposition process can be improved, the resulting electroplating layer has characteristics of compactness, uniformity, good bonding force, high hardness and excellent corrosion resistance, wherein the improved properties of the electroplating solution comprise improvement of current efficiency and improvement of dispersing ability.
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Description

technical field

[0001] The invention relates to a nickel-phosphorus alloy electroplating solution and a using method thereof. Background technique

[0002] China's hydraulic piston rods mostly use chrome plating for anti-corrosion treatment, and the electroplating companies in the industry basically follow the national standard GBll379-89 "Chrome Electroplating for Metal Covering Engineering" and GB / T12611-90 "Technical Requirements for Quality Control of Metal Parts Before Plating" Execution, however, under extreme conditions, the chrome-plated piston rod produced by the prior art has poor corrosion resistance, and at the same time, the produced hydraulic piston rod has a relatively large surface roughness. Contents of the invention

[0003] The purpose of the present invention is to provide a nickel-phosphorus alloy electroplating solution and its application method.

[0004] The technical scheme that the present invention takes is:

[0005] A nickel-phosphorus alloy e...

Claims

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