Electroplating method for corrosion-resistant and abrasion-resistant workpiece, and electroplating solution
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, and low bonding strength of composite coatings, so as to improve wear resistance and achieve good results Effect
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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 concentration, 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 octadecylsulfonate 3g / L;
[0040] The preparation method of described hollow porous alumina microspheres comprises the following steps:
[0041] Step 1, according to parts by weight, add 15 parts of monomer mixture, 0.4 parts of polyvinylpyrrolidone, and 0.3 parts of initiator azobisisobutyronitrile into 120 parts of absolute ethanol, mix uniformly with the assistance of ultrasound, and then The polymerization reaction is carried out in the atmosphere, the polymerization reaction temperature is 80°C, a...
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 octadecylsulfonate 1g / L;
[0048] The preparation method of described hollow porous alumina microspheres comprises the following steps:
[0049] Step 1, according to parts by weight, add 10 parts of monomer mixture, 0.2 parts of polyvinylpyrrolidone, and 0.1 part of initiator azobisisobutyronitrile into 100 parts of absolute ethanol, mix uniformly with the assistance of ultrasound, and then The polymerization reaction is carried out in the atmosphere, the polymerization reaction temperature is 75°C, a...
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 octadecylsulfonate 2g / L;
[0056] The preparation method of described hollow porous alumina microspheres comprises the following steps:
[0057] Step 1, according to parts by weight, add 12 parts of monomer mixture, 0.3 parts of polyvinylpyrrolidone, and 0.3 parts of initiator azobisisobutyronitrile into 110 parts of absolute ethanol, mix uniformly with the assistance of ultrasound, and then The polymerization reaction is carried out in the atmosphere, the polymerization reaction temperature is 77 ° C...
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Abstract
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