Method for treating inner and outer walls of oil pipe before coating of anti-corrosion coatings

The invention belongs to an oil pipe wall surface treatment process, and in particular relates to a method for treating inner and outer walls of an oil pipe before coating of anti-corrosion coatings.The method comprises the steps of A. treating the outer wall surface of the oil pipe (cleaning and shot-blasting the outer wall surface of the oil pipe); B. treating the end faces of pipe orifices atboth ends of the oil pipe (cleaning the end faces of the pipe orifices at both ends of the oil pipe); C. treating the inner wall surface of the oil pipe (cleaning and shot-blasting the inner wall surface of the oil pipe). The method provided by the invention is suitable for the wall surface of any steel pipe, and can effectively enable the technical performance of the anti-corrosion coatings to benormally exerted. 本发明属于油管壁面处理工艺，特别是油管内外壁防腐涂层涂敷前的处理方法，A、油管外壁面的处理（对油管外壁面进行清洁与抛丸）；B、油管两端管口端面的处理（对油管两端管口端面进行清洁）；C、油管内壁面的处理（对油管内壁面进行清洁与喷砂）。本发明可适用于任何钢制管壁面，能有效确保防腐涂层技术性能的正常发挥。