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High-efficiency and environment-friendly silicon-manganese alloy electroplating process

A technology of silicon-manganese alloy and electroplating process, which is applied in the field of electroplating, can solve problems such as low production efficiency, high cost, and environmental pollution, and achieve the effects of improving efficiency, good effect, and less environmental pollution

Inactive Publication Date: 2019-05-21
戴峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a pretreatment process not only has low production efficiency and high cost, but also causes environmental pollution.

Method used

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Embodiment

[0020] A high-efficiency and environmentally friendly silicon-manganese alloy electroplating process, comprising the following steps:

[0021] (1) Degreasing and derusting: Put the workpiece to be electroplated into the drum, which is equipped with 1 / 2 volume of degreasing and derusting water bath. The degreasing and derusting water bath contains: wood powder 4g / L , sodium sulfite 22g / L, sodium hypochlorite 12g / L, potassium hydroxide 2g / L, ammonium chloride 4g / L, citric acid 3.1g / L, soak at room temperature for 28min, and then wash at 65r / min for 45min to remove The purpose of oil rust removal;

[0022] (2) Ultrasonic cleaning: After degreasing and derusting, the workpiece is ultrasonically treated in an ethylene aqueous solution with an ultrasonic volume fraction of 25% at 40°C for 1min, and the ultrasonic frequency is 45Hz; after cleaning, re-inject clean water under the same ultrasonic conditions Rinse twice and finally blow dry;

[0023] (3) Dehydrogenation: Put the elec...

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Abstract

The invention discloses a high-efficiency and environment-friendly silicon-manganese alloy electroplating process. The high-efficiency and environment-friendly silicon-manganese alloy electroplating process comprises the following steps of oil removing and rust removing, ultrasonic cleaning, electroplating, hydrogen removing, hydrophobic treating, ethanol washing, water washing and blow drying. Bymeans of the high-efficiency and environment-friendly silicon-manganese alloy electroplating process, two working procedures of the oil removing and the rust removing are combined into one, the working procedures are saved, the cost is reduced, the efficiency is improved, and the weak alkaline conditions have less pollution to the environment; the ultrasonic cleaning working procedure is added, the overall pretreatment efficiency is high, and environmental protection without pollution is achieved; and in the electroplating process, an acid system is adopted to have less pollution to the environment, ascorbic acid, hydroquinone and other additives were added, the electroplating is performed at suitable current density and electroplating temperature, the silicon-manganese co-deposition effect is good, a finally-obtained silicon-manganese alloy electroplating layer is uniform in color and meticulous in crystallization, the film layer thickness can reach 10 micrometers, the wear resistance is good, the electroplating layer does not peel when being subjected to unidirectional friction for 100 times in W40 abrasive paper, meanwhile, the alloy electroplating layer has good electrical conductivity, and outward migration and diffusion of chromium in stainless steel can be effectively prevented.

Description

technical field [0001] The invention relates to a high-efficiency and environment-friendly silicon-manganese alloy electroplating process, which belongs to the technical field of electroplating. Background technique [0002] Electroplating is the process of obtaining a metal deposit on a solid surface by electrochemical methods. As an important means of traditional surface engineering, electroplating technology has long been used to provide a corrosion-resistant protective layer and a decorative decorative layer for the surface of the workpiece; or to change the surface properties of the base material to obtain metal or Alloy overlay. Due to the development of aerospace and nuclear material engineering industries and electronic information industries, electroplating methods have been used to prepare different types of new composite materials, including particle-dispersed metal composite materials, short fibers, long fiber winding, whisker-reinforced materials, Layered comp...

Claims

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Application Information

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IPC IPC(8): C25D5/34C25D3/56C23G1/14
Inventor 戴峰
Owner 戴峰