Continuous metal electroplating method and device for carbon fiber tows
A technology of carbon fiber tow and electroplating metal, which is applied in the field of electroplating metal, which can solve the problems of difficulty in obtaining metal film, low production efficiency, slow electroplating speed, etc., and achieve the effects of avoiding bridging between filaments, high production efficiency, and avoiding excessive heating
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Embodiment 1
[0048] Adopt the first kind of carbon fiber tow electroplating device, it comprises transmission guide roller group, electroplating tank 3, electroplating tank guide roller 4, anode metal plate 5, conductive guide roller 6, it is characterized in that electroplating tank 3 is 3, in There is a transmission guide roller group above the input end of one electroplating tank 3, and there are transmission guide rollers 2 distributed in a staggered manner in the transmission guide roller group, and an anode metal plate 5 is distributed at the bottom of each electroplating tank 3, and each anode metal plate 5 There are electroplating tank guide rollers 4 above both ends, conductive guide rollers 6 above the electroplating tanks 3, and a conductive guide roller 6 above the output end of the last electroplating tank 3. After the conductive guide rollers 6 There is a transmission guide roller set.
[0049] The conductive guide roller 6 is a graphite guide roller. The anode metal plate 5...
Embodiment 2
[0053] Adopting the first carbon fiber tow electroplating device, there are five electroplating tanks 3, and the conductive guide roller 6 is a stainless steel guide roller. The anode metal plate 5 is a Ni plate.
[0054] Polyacrylonitrile (PAN)-based high-strength 6K carbon fiber 1 with a diameter of 7 μm was heat-treated in a desizing furnace at 550 ° C for 12 minutes, and the atmosphere was nitrogen; Clean the aqueous solution cleaning tank, and then enter the water washing tank to wash off the residual sodium lauryl sulfate on the surface of the carbon fiber with flowing deionized water, so that the content of sodium lauryl sulfate in the running water is about 0.23g / L; then enter the 5 Continuous nickel plating is carried out in a separate electroplating tank. The formula of the electroplating solution is: NiSO 4 ·6H 2 O 120g / L, NiCl 2 ·6H 2 O 30g / L, NaCl 10g / L, MgCl 2 10g / L,H 3 BO 3 40g / L, the pH value is controlled at 4.8-5.5, and the temperature is 20°C.
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Embodiment 3
[0057] Using the first carbon fiber tow electroplating device, there are four electroplating tanks 3, and the conductive guide roller 6 is a copper guide roller. The anode metal plate 5 is a Ni plate.
[0058] The polyacrylonitrile-based 12K carbon fiber 1 with a diameter of about 7 μm was heat-treated in a desizing furnace at 650 ° C for 5 minutes, and the atmosphere was argon; next, the carbon fiber tow 1 was washed in an aqueous solution containing 1.0 g / L sodium lauryl sulfate tank for cleaning, and then enter the washing tank to wash off the residual sodium lauryl sulfate on the surface of the carbon fiber with flowing deionized water, and detect that the content of sodium lauryl sulfate in the washing water is 0.15g / L; then enter 4 independent Continuous nickel plating is carried out in the electroplating bath. The formula of the electroplating solution is: NiSO 4 ·6H 2 O 300g / L, NiCl 2 ·6H 2 O 10g / L, NaCl 30g / L, MgCl 2 5g / L,H 3 BO 3 15g / L, the pH value is contro...
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