Plating layer or passivation layer preparing device capable of flexibly controlling environment parameters and using method

A technology for controlling the environment and preparing the device, which is used in coatings, surface reaction electrolytic coatings, electrolytic coatings, etc., can solve problems such as poor controllability and troublesome maintenance, and achieve the effects of low cost, stable operation, and ensuring the uniformity of electric field lines.

Pending Publication Date: 2018-08-10
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a flexible control of environmental parameters to obtain a uniform coating or passivation layer preparation device and use method, which can generate a uniform and stable coating or passivation layer structure in a stable electrolyte or passivation solution environment, and solve the existing problems. Problems such as poor control and troublesome maintenance in the technology

Method used

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  • Plating layer or passivation layer preparing device capable of flexibly controlling environment parameters and using method
  • Plating layer or passivation layer preparing device capable of flexibly controlling environment parameters and using method
  • Plating layer or passivation layer preparing device capable of flexibly controlling environment parameters and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] The measurement of the potential E and dissolved oxygen standard curve of cathode B vs anode A in the electro-galvanizing bath at room temperature 25°C is as follows:

[0076] The experimental material of cathode B to be treated is domestic commercially available Q235 carbon steel, and the material of anode A is commercially available 99.99wt% high-purity titanium sheet. Commercially available basic cyanide-free electrolytic zinc at room temperature has a composition of 10g / L ZnCl 2 , 120g / L NaCl, 850 type alkaline electro-galvanizing brightener A, moving agent B and purifying agent C are 6mL / L, 1mL / L and 2mL / L respectively, the rest is water, and the pH value is controlled at 3.0. According to Nernst's law E=E 0 +2.3RT / F·ln(p / p θ ), and E has a logarithmic relationship with DO. Obtaining the standard curve of E∝DO of B vs A in advance can facilitate the indirect control of the dissolved oxygen DO of the solution through E later. The measurement of this experiment E...

Embodiment 2

[0082] Domestic Q235 steel is electroplated with zinc + trivalent chromium passivation in the electrolyte of electroplating or passivation treatment pool C at room temperature as follows:

[0083] The experimental material of the cathode to be treated is domestic commercially available Q235 carbon steel, and the anode material is commercially available 99.99wt% high-purity titanium sheet. Experimental electro-galvanizing process: the electrolyte is as in Example 1, the temperature T is 25°C, and the dissolved oxygen DO is 0.1mol / L (ppm). The FC-85 trivalent chromium blue-white passivation solution sold by Suzhou Jizhimei Surface Treatment Materials Co., Ltd. is selected for the experiment. The temperature is 25°C, and the pH value is controlled at 2.0. The experimental steps are as follows:

[0084] (1) Electroplating experiment preparation: Add 300mL galvanized electrolyte solution to a 500mL electroplating or passivation treatment pool, place a magnetic stirrer in the soluti...

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Abstract

The invention belongs to the field of material experiment study, and particularly relates to the field of electroplating and passivation, in particular to a plating layer or passivation layer preparing device capable of flexibly controlling environment parameters and a using method. The plating layer or passivation layer preparing device comprises an electroplating or passivation treatment system,wires and a power supply provider, wherein the electroplating or passivation treatment system comprises an anode, a cathode, a heating magnetic stirrer and an electroplating or passivation treatmentpond, the anode and the cathode are externally connected with the power supply provider through the cathode wire or the anode wire, and fixed current densities or electric potentials are provided. Anelectroplating or modification technology is utilized, the precise experiment conditions like electroplating or passivation environment temperature, uniformity, atmosphere, components and current density are flexible controlled, and a single-metal-membrane layer or an alloy membrane is deposited on the surface of a metal conductor. The plating layer or passivation layer preparing device is easy tooperate and convenient to maintain, has high plating layer uniformity and high adhesion, and can be applied to the aspects of machinery, electronics, precise instruments and the like.

Description

technical field [0001] The invention belongs to the field of material experiment research, more precisely, relates to the field of electroplating and passivation, in particular to a plating layer or passivation layer preparation device and use method for flexibly controlling environmental parameters. Background technique [0002] At present, electroplating and passivation have been widely used in various fields. In addition to surface treatment methods, they are also used in the production of circuit boards and thin films. The thickness uniformity of the surface layer has always been an important indicator for evaluating the performance of electroplating. Factors affecting thickness uniformity involve electrolyte composition, sample surface area, electrolyte temperature, electrolyte mixing, distance between electrodes, electrode materials, etc. For example, Wan Jing and Zhang Yanrong of Huazhong University of Science and Technology provided a low-temperature preparation meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D21/12C25D11/00
CPCC25D21/12C25D11/005
Inventor 刘侠和田昂李凤华李英楠李洪旭刘宇
Owner NORTHEASTERN UNIV
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