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Electroplating method and electroplating solution for anti-corrosion and wear-resistant workpiece

A technology for electroplating solutions and metal workpieces, applied in chemical instruments and methods, electrolytic coatings, ceramic products, etc., can solve the problems of low fusion, low hardness, poor corrosion resistance, etc., and achieve the effect of improving wear resistance and good effect

Active Publication Date: 2019-11-12
肇庆市业华电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the poor conductivity of metal oxides and low fusion with the metal layer, the above-mentioned composite coatings have the problems of low bonding strength, low hardness, and poor corrosion resistance.

Method used

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  • Electroplating method and electroplating solution for anti-corrosion and wear-resistant workpiece
  • Electroplating method and electroplating solution for anti-corrosion and wear-resistant workpiece
  • Electroplating method and electroplating solution for anti-corrosion and wear-resistant workpiece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] S1: Pretreatment: the surface of the metal workpiece is pretreated by grinding, chemical degreasing, electrochemical activation and deionized water washing in sequence;

[0039] S2: Preparation of electroplating solution: Prepare electroplating solution according to the following concentrations: chromium sulfate 75g / L, nickel sulfate 50g / L, cobalt sulfate 25g / L, hollow porous alumina microspheres 15g / L, boric acid 55g / L, ammonium chloride 60g / L, citric acid 120g / L, sodium octadecyl sulfonate 3g / L;

[0040] The preparation method of the hollow porous alumina microspheres comprises the following steps:

[0041] Step 1, add 15 parts of monomer mixture, 0.4 part of polyvinylpyrrolidone, 0.3 part of initiator azobisisobutyronitrile to 120 parts of absolute ethanol according to parts by weight, mix uniformly with the aid of ultrasonic, and then add nitrogen The polymerization reaction is carried out in the atmosphere, the polymerization temperature is 80 ° C, and the reactio...

Embodiment 2

[0046] S1: Pretreatment: the surface of the metal workpiece is pretreated by grinding, chemical degreasing, electrochemical activation and deionized water washing in sequence;

[0047] S2: Preparation of electroplating solution: Prepare electroplating solution according to the following concentrations: chromium sulfate 50g / L, nickel sulfate 40g / L, cobalt sulfate 20g / L, hollow porous alumina microspheres 12g / L, boric acid 35g / L, ammonium chloride 55g / L, citric acid 100g / L, sodium octadecyl sulfonate 1g / L;

[0048] The preparation method of the hollow porous alumina microspheres comprises the following steps:

[0049] Step 1, according to weight parts, add 10 parts of monomer mixture, 0.2 part of polyvinylpyrrolidone, 0.1 part of initiator azobisisobutyronitrile to 100 parts of anhydrous ethanol, mix well with the aid of ultrasonic, and then under nitrogen The polymerization reaction is carried out in the atmosphere, the polymerization reaction temperature is 75 ° C, and the re...

Embodiment 3

[0054] S1: Pretreatment: the surface of the metal workpiece is pretreated by grinding, chemical degreasing, electrochemical activation and deionized water washing in sequence;

[0055] S2: Preparation of electroplating solution: Prepare electroplating solution according to the following concentrations: chromium sulfate 60g / L, nickel sulfate 45g / L, cobalt sulfate 22g / L, hollow porous alumina microspheres 14g / L, boric acid 40g / L, ammonium chloride 58g / L, citric acid 110g / L, sodium octadecyl sulfonate 2g / L;

[0056] The preparation method of the hollow porous alumina microspheres comprises the following steps:

[0057] Step 1, according to weight parts, add 12 parts of monomer mixture, 0.3 part of polyvinylpyrrolidone, 0.3 part of initiator azobisisobutyronitrile to 110 parts of absolute ethanol, mix uniformly with the aid of ultrasound, and then add nitrogen The polymerization reaction is carried out in the atmosphere, the polymerization temperature is 77 ° C, and the reaction ...

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Abstract

The invention relates to an electroplating method and an electroplating solution, in more particular to an electroplating method for an abrasion-resistant and corrosion-resistant stainless steel surface based on nano-particle reinforcement, meanwhile also relates to the electroplating solution, and belongs to the technical field of metal electroplating. According to the electroplating method for aCr-Ni-Co plating layer, nano-porous hollow alumina microspheres are adopted as corrosion-resistant and abrasion-resistant reinforcement materials, when applied in the composite nano-electroplating process, the porous hollow microspheres can be effectively embedded into the plating layer, and thus the abrasion resistance and strength of the plating layer are improved obviously.

Description

technical field [0001] The invention relates to an electroplating method and an electroplating solution, more particularly to an electroplating method based on a nanoparticle-enhanced wear-resistant and corrosion-resistant stainless steel surface, and also an electroplating solution, which belongs to the technical field of metal electroplating. Background technique [0002] The phenomenon that the metal surface is destroyed by the action of the surrounding medium is called metal corrosion. For example, reddish-brown rust appears on the surface of steel in humid air, patina appears on the surface of copper, and oxidation occurs when steel is heated. Corrosion can deteriorate the performance of the parts, reduce the accuracy, the surface is uneven, the life is shortened, and even scrapped. According to statistics, in industrialized countries, the annual cost of repairing or replacing products due to corrosion accounts for about 5% of national income. Therefore, the anti-corr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/56C25D15/00C04B35/111C04B35/622C04B35/634C04B38/06C04B41/84
CPCC01F7/30C01F7/308C01P2002/72C01P2004/03C01P2004/34C25D3/56C25D15/00
Inventor 邓定平
Owner 肇庆市业华电子材料有限公司
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