Electric-corrosion-resisting compound electroplating liquid for scaffold
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A composite electroplating and scaffolding technology, applied in the direction of electrolytic coatings, coatings, etc., can solve the problems of reduced hardness, increased wear, and composite coatings that cannot meet the needs, so as to improve wear resistance, wear reduction and lubricity , The effect of simple preparation method
Inactive Publication Date: 2016-10-12
王世群
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[0003] In the article "Research on NI-PTFE Composite Electroplating Process", the author proposed that the Ni / PTFE composite coating was successfully prepared by adding polytetrafluoroethylene emulsion and FC134 cationic surfactant to the electroplating solution. In terms of mechanical properties, the friction coefficient of the composite coating is 0.218, which is only about 34% of the pure nickel coating. However, due to the softness of PTFE, after entering the coating, the hardness of the composite coating is reduced compared with that of the pure nickel coating, and at the same time, the amount of wear is somewhat reduced. Increase
Therefore, in some fields, this composite coating cannot meet the demand
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[0013] A composite electroplating solution for electric corrosion-resistant scaffolding, prepared from the following raw materials in parts by weight (kg): aniline 6.8, ammonium persulfate 0.1, boric acid 50, EDTA 1.5, nickel sulfate 220, nickel chloride 40, poly Ethylene glycol 80000.2, polytetrafluoroethylene emulsion 50, cationic surfactant FC1343, lanthanum nitrate 2.5, cerium nitrate 2.3, barium sulfate 4, bentonite 2.8, appropriate amount of ethanol, appropriate amount of deionized water.
[0014] The composite electroplating solution for a scaffold resistant to electric corrosion is prepared by the following specific steps:
[0015] (1) Mix barium sulfate and bentonite to obtain a powdery mixture, then add water to the mixture and stir to disperse to obtain a muddy mixture, then dry at 90°C for 6 hours, cool and pulverize to a particle size of 0.2mm, mix lanthanum nitrate and nitric acid Add cerium to 5 times the total weight of deionized water, stir evenly, spray on th...
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Abstract
The invention discloses an electric-corrosion-resisting compound electroplating liquid for a scaffold. The compound electroplating liquid is prepared from, by weight, 6.8-9 parts of aniline, 0.1-0.2 part of ammonium persulfate, 50-60 parts of boric acid, 1.5-2 parts of EDTA, 220-250 parts of nickel sulfate, 40-50 parts of nickel chloride, 0.2-0.3 part of polyethylene glycol 8000, 50-60 parts of teflon emulsion, 3-4 parts of a cationic surfactant FC134, 2.5-3 parts of lanthanum nitrate, 2.3-2.6 parts of cerium nitrate, 4-5 parts of barium sulfate, 2.8-3.5 parts of bentonite, a proper amount of ethyl alcohol and a proper amount of deionized water. According to the prepared electroplating liquid, the preparation method is simple, the electroplating process is easy to implement, the electroplating uniformity is good, an electroplating layer is smooth and uniform, stability and density are high, corrosion resistance, rust resistance and other properties are improved, and the electroplating liquid is worthy of popularization.
Description
technical field [0001] The invention relates to the technical field of electroplating solutions, in particular to a composite electroplating solution for electric corrosion-resistant scaffolding. Background technique [0002] Electroplating, also known as metal electrodeposition technology, is a process in which the workpiece is immersed in a solution containing the metal salt to be deposited, and a negative charge is applied to the workpiece to deposit a layer of metal or alloy layer that is closely bonded to the workpiece on the surface of the workpiece. The basic principle of electroplating is to reduce the metal ions in the solution on the interface between the solution and the plated parts through the action of various electric fields, generate metal atoms and deposit them on the metal surface to form a coating. Composite coating is a surface modification technology that adds insoluble solid particles to the plating solution to cause co-deposition of matrix metal and so...
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