Common methods for 3PE anticorrosive steel pipe anti-corrosion:1. Pipeline anticorrosion generally uses two main methods commonly used: outer coating and cathodic protection.2. Although most of the surface of the pipeline is covered by the coating, an incredible corrosion rate will occur if there is

1. The surface of the plated parts is not clean⑴The surface of the plated parts contains paint, grease, and welding iron; it can be polished or prepared with related solvents for scrubbing.⑵Iron oxide; lack of pickling; continue pickling.2. Pickling and operation:⑴ Under and over pickling. Under-pic

1. Steel pipe piles need to be properly stackedThe stacking site is required to be flat to ensure that large vehicles can enter directly. For the low-lying area of the site, it is necessary to pave road slag or road wood under the supporting point for artificial reinforcement, and it is necessary to

1. Visual inspection.The visual inspection of welded joints is a simple procedure with a wide variety of inspection methods. It is an important part of finished product inspection, mainly to find welding surface defects and dimensional deviations. Generally, the test is carried out by visual observa