Steel pipe inner wall anti-corrosion is an anti-corrosion device for the inner wall of the steel pipe welding zone, which is characterized by a sacrificial anode made of lead, magnesium, zinc, or their alloys connected to a terminal made of conductive metal material, the terminal The outer edge is placed between the joints of two steel pipes, and after welding, it becomes a firm connection with the steel pipe. This device implements sacrificial anode protection for the intermittent part of the inner wall lining of the weld joint area, thus realizing the overall protection of the steel pipe with the inner lining pipe. The inner wall is anti-corrosion. Its structure is simple, easy to install, low cost, 95-100% protection, and 5-20 years of service life.
An anti-corrosion device for the inner wall of a steel pipe using a sacrificial anode to protect the inner wall of the lining steel pipe weld zone. The inner wall of the steel pipe is characterized in that the sacrificial anode (1) is connected to the conductive metal On the terminal head (2) made of material, the outer edge of the terminal head (2) is placed between the two steel pipe joints, and becomes a firm connection with the steel pipe after welding.
