Preparation method of corrosion-resistant conductive grounding carbon steel in-situ coating
A carbon steel, in-situ technology, applied in the direction of contact manufacturing, connecting contact materials, etc., can solve the problems of uneven coating, poor adhesion of external coating, and continuous consumption of resources by cathodic protection technology. Reduce corrosion rate, avoid long-term consumption and maintenance effect
Pending Publication Date: 2021-08-20
ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +2
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Abstract
The invention relates to a preparation method of a corrosion-resistant grounding carbon steel in-situ coating. The preparation method comprises the following steps of (1) pretreating the surface of carbon steel, (2) placing the treated carbon steel serving as an anode and a graphite plate serving as a cathode in an in-situ electrolyte, and carrying out electrolytic treatment for a certain time, and (3) putting the carbon steel treated in the step (2) into in-situ post-treatment liquid, and stopping post-treatment for a certain time. The method disclosed by the invention overcomes the defects that an external coating is poor in adhesive force and easy to fall off. Meanwhile, the problems of long-term consumption and maintenance of an electrochemical protection technology are avoided. On the basis of ensuring the conductive drainage of the carbon steel material, the corrosion form is controlled to be uniform corrosion, the corrosion rate of the carbon steel material in soil is greatly reduced, and finally, the grounding carbon steel meets the service cycle of design requirements.
Application Domain
Contact member manufacturingConnection contact member material
Technology Topic
Carbon steelElectrically conductive +8
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