High-abrasion-resistant anti-static electricity rolling needle and preparation method thereof
A needle rolling and coating technology, applied in jewelry, etc., can solve the problems of high defect rate of batteries, low Teflon hardness, and inability to eliminate static electricity, so as to reduce the possibility of adsorption on batteries and improve wear resistance The effect of improving performance and service life, improving yield and performance stability
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[0057]
[0058] The present invention also provides a method for preparing the above-mentioned coating, the method comprising: preparing the coating by using the above-mentioned nickel-cobalt-polytetrafluoroethylene mixed plating solution.
[0059] In a preferred solution of the present invention, the method includes: preparing the plating layer by electroplating the above nickel-cobalt-polytetrafluoroethylene mixed plating solution.
[0060] In a preferred version of the present invention, the method comprises the steps of:
[0061] 1) preparing nickel-cobalt-polytetrafluoroethylene mixed plating solution;
[0062] 2) The element to be plated is used as a cathode plate, and pure nickel (purity ≥ 99.9%) is used as an anode plate for electroplating.
[0063] In a preferred solution of the present invention, the temperature of the electroplating is 40-70°C; the time of the electroplating is 10min-2h, and further, by adjusting the time of the electroplating, different thicknes...
Embodiment 1
[0082] Prepare 5L nickel-cobalt-polytetrafluoroethylene mixed plating solution, wherein the solvent in the mixed plating solution is water, and the following substances are also included in the mixed plating solution: nickel sulfate 300g / L, cobalt sulfate 40g / L, particle size 0.05 μm polytetrafluoroethylene 5g / L, buffering agent 25g / L, brightener 10mL / L, surfactant 0.5g / L, wherein the buffering agent is boric acid, brightening agent is 5g o-benzoylsulfonimide, 0.8 The mixed solution of g dihydroxydimethylacetylene, 100mL sodium vinyl sulfonate, the surfactant is sodium dodecyl sulfonate; the pH of the mixed plating solution is 3.5;
[0083] Coating preparation: Take high-carbon and high-chromium alloy steel coil needle as the cathode plate, the size is 245mm long * 8.5mm wide * 8mm thick, pure nickel (purity ≥ 99.9%) is the anode plate, the size is 255mm * 10mm wide * 8mm thick , the temperature of the electroplating process is 55°C, and the current density is 6A / dm 2 , The e...
Embodiment 2
[0085] Prepare 5L nickel-cobalt-polytetrafluoroethylene mixed plating solution, wherein the solvent in the mixed plating solution is water, and also includes the following substances in the mixed plating solution: nickel sulfate 200g / L, nickel chloride 40g / L, cobalt sulfate 50g / L, polytetrafluoroethylene with a particle size of 0.08μm 8g / L, buffering agent 15g / L, brightener 15mL / L, surfactant 1.0g / L, wherein the buffering agent is phosphoric acid, and the brightening agent is 10g o-phthalic acid A mixed solution of acylsulfonimide, 3g dihydroxydimethylacetylene, and 150mL sodium vinylsulfonate, and the surfactant is sodium dodecylsulfonate; the pH of the mixed plating solution is 4.0;
[0086] Coating preparation: Take high-carbon and high-chromium alloy steel coil needles as the cathode plate, the size is 245mm long * 8.5mm wide * 8mm thick, pure nickel (purity ≥ 99.9%) plate is used as the anode plate, the size is 255mm * 10mm wide * 8mm thick, the temperature of the electro...
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