Abstract
The effects of copper sulfate concentration in the plating solution on the composition,the structure and the anticorrosion properties of Ni-Cu-P deposited coating were studied by EPMA、XRD and polarization curves.The anticorrosion properties of Ni-Cu-P deposited coating was optimal as the copper sulfate concentration in the plating solution was 0.5 g·L-1.The electrochemical anticorrosion properties of Ni-Cu-P,Ni-P deposited coatings and copper plates were investigated in the gas condensate.The self-corrosion potential of Ni-Cu-P deposited coatings was low,the self-corrosion current density was small,and the electrochemical impedance was the highest.Therefore,the electroless Ni-Cu-P coatings can be used as anticorrosion cover and anodic sacrificial protective coatings of copper condensing exchanger.It could protect copper tubes from being corroded and perforated,so it could increase the effective life of copper condensing exchanger.
Keywords
condensing exchanger, electroless plating, Ni-Cu-P, anticorrosion properties, EIS
Publication Date
2008-08-28
Online Available Date
2008-08-28
Revised Date
2008-08-28
Received Date
2008-08-28
Recommended Citation
Li-jun YANG, Gui-chang LIU, Sui-lin WANG, Zhi-cong SHI.
Applications of Electroless Deposition Ni-Cu-P Coating on the Gas Condensing Exchanger[J]. Journal of Electrochemistry,
2008
,
14(3): 325-329.
DOI: 10.61558/2993-074X.1915
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol14/iss3/19
References
[1]Lu Z,Wang S L,Zhao X M,et al.Effect of condensinggas boiler on energy saving and environmental protection[A].Energy Conversion and Application(ICECA2001)[C].Wuhan:Huazhong University ofScience and Technology Press,2001:192-195.
[2]Chen X H(陈兴华),Zhuang B D(庄斌舵),Liu G Y(刘光远).Performance and applications of condensingheating boilers[J].Heating Ventilating&Air Condi-tioning,2001,31(2):38-40.
[3]Li L P(李丽萍),Wang S L(王随林),Liu G C(刘贵昌),et al.Effect of process technology for anticorrosioncoating on condensing heat exchanger[J].Gas&Heat,25(8):16-19.
[4]Pan X X(潘新新),Wei D S(魏敦崧).Anti-corrosionof condensing gas water heater[J].Gas&Heat,2005,25(8):12-15.
[5]Dimitar K,Nikolai K.Performance characteristics of anew type of lamellar heat exchanger for the utilization offlue gas heat[J].Applied Thermal Engineering,2002,22:1919-1930
[6]Wang S L(王随林),Liu G C(刘贵昌),Wen Z(温治),et al.Heat transfer performance of condensing flueheat exchangers with anticorrosion films[J].HeatingVentilating&Air Conditioning,2005,35(2):71-74.
[7]Liu Y,Zhao Q.Study of electroless Ni-Cu-P coatingand their anti-corrosion properties[J].Applied SurfaceScience,2004,228:57-62.
[8]Liu G C(刘贵昌),Liu J(刘杰),Yu TM(于同敏),etal.Study of mechanism of electroless Ni-P plating[J].Journal of Dalian University of Technology,1998,38(5):603-606.
[9]LZ(吕照).Study heat transfer and anti-corrosion ofcondensing gas water heater[D].Beijing:Beijing Insti-tute of Civil Engineering and Architecture,2001.
[10]Li J Q(李洁琼),Jiang B Y(姜秉元).Micro-struc-ture and corrosion resistance of electro-deposition Ni-W-P amorphous alloy[J].Journal of Luoyang Instituteof Technology,2003,24(4):8-11.
