Electroless Plating Of Ni-p Base In Corrosion Research

The facilities corrosion problems in the petrochemical enterprises not only make the cost of replacing and maintaining facilities increased, but also threaten safe operation of thingamy severely.In the recent years, with more and more heavy crude oil from Liaohe, the facilities corrosion has become more and more severely, therefore it is very important realistic significance to strengthen and research the facilities corrosive mechanism and protective measures.A kind of newly technique called the chemical sediment was developed in the 1960s and 1970s, and with the development of the science and techniques, the technique is becoming more and more mature, applied widely in the petrochemical enterprises increasingly, which has great benefits for prolonging the safe operation cycles of facilities and strengthening the output quality and decreasing maintenance cost.The thesis is researched as follows based on the practical situations of the petrochemical enterprises:(l)The systemic research is based on the reactive mechanism of the chemical sediment and the chemical multiple sediment and the changing mechanism of the crystal sediment layers.(2)Some experimental measures are convinced, including optimizing ways of techniques design of chemical sediments, the ways of heat treatment of sediment layers and measurement of micro hardness, and the experimental ways of the sediment layers corrosion. (3)Some outcomes and effects are acquired by the techniques research of multiple chemical sediment and multiple sediment, including the effects of metal ion ratio, sediment liquid temperature and sediment liquid PH and so on for sediment velocity, the effect of heat treatment techniques for changing crystal sediment layers and micro hardness, and the experimental outcome of sediment layers resisting all kinds of corrosion.The better conclusions are acquired in the above-mentioned aspects, and good effects are acquired in the practical application, which have the meaning of use for reference in the aspects of resisting high temperature corrosion for the petrochemical enterprises. However, with the perpetual development of scientific technology and enterprises, the demand for resisting facilities corrosion is improved day by day, and deeper research is still needed.