Alkaline chloride galvanizing agent and preparation method thereof
A treatment agent and chloride technology, applied in the field of alkaline chloride zinc plating treatment agent and its preparation, can solve the problems of the gap between the adhesion and brittleness of the coating, the plating solution containing highly toxic cyanide, and the impurity resistance is not strong enough. Achieve the effect of fast deposition rate, high binding rate and strong impurity resistance
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Embodiment 1
[0029] This embodiment uses sodium hydroxide: 520kg, potassium chloride: 270kg, zinc oxide: 32.5kg; DPE-3 auxiliary agent: 19kg; ZB-80 brightener: 19kg, water 4000kg. Add 1000kg of tap water into the electrolytic tank, pour sodium hydroxide into the tank, and stir until completely dissolved; make a paste of zinc oxide with a small amount of water, and gradually add it to the sodium hydroxide solution under constant stirring to make the zinc oxide Dissolve completely; then add potassium chloride to sodium hydroxide and zinc oxide solution, stir until completely dissolved, dilute to 4000kg with tap water, then add DPE-3 auxiliary agent; ZB-80 brightener, cool to below 45°C, at 0.1A / dm 2 Electrolyze for 2-3 hours at the current density of the plated parts, the area of the cathode plated parts: the area ratio of the anode zinc plate and the iron plate is 1:1.5, and the treatment agent is prepared for electroplating galvanizing, and the electroplated products are bright and metic...
Embodiment 2
[0031] This embodiment uses sodium hydroxide: 580kg, sodium chloride: 290kg, zinc oxide: 35kg; DPE-3 auxiliary agent: 20kg; ZB-80 brightener: 20kg, water: 3800kg. First add 1000kg of tap water into the electrolytic tank, pour sodium hydroxide into the tank, and stir until completely dissolved; make zinc oxide into a paste with a small amount of water, and gradually add it to the sodium hydroxide solution under constant stirring to make the oxidation Zinc is completely dissolved; then add potassium chloride to sodium hydroxide and zinc oxide solution, stir until completely dissolved, dilute to 3800kg with tap water, then add DPE-3 auxiliary agent; ZB-80 brightener, cool to below 45°C , at 0.15A / dm 2 Electrolyze for 2-3 hours at the current density of the plated parts, the area of the cathode plated parts: the area ratio of the anode zinc plate and the iron plate is 1:1.8, the treatment agent is prepared for electroplating galvanizing, and the electroplated products are bright...
Embodiment 3
[0033] This embodiment uses sodium hydroxide: 660kg, sodium iodide: 320kg, zinc oxide: 40kg; DPE-3 auxiliary agent: 20kg; ZB-80 brightener: 20kg, water: 5000kg. Add 1800kg of tap water into the electrolytic tank, pour sodium hydroxide into the tank, and stir until completely dissolved; make zinc oxide into a paste with a small amount of water, and gradually add it to the sodium hydroxide solution under constant stirring to make the zinc oxide Dissolve completely; then add potassium chloride to sodium hydroxide and zinc oxide solution, stir until completely dissolved, dilute to 5000kg with tap water, then add DPE-3 auxiliary agent; ZB-80 brightener, cool to below 45°C, at 0.2A / dm 2 Electrolyze for 2-3 hours at the current density of the plated parts, the area of the cathode plated part: the area ratio of the anode zinc plate and the iron plate is 1:2, and the treatment agent is prepared for electroplating. No peeling phenomenon at 250°C, no discoloration, strong anti-impurit...
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