Epoxy anticorrosive steel pipe1. Composition: steel pipe + coatingA. Steel pipes: seamless steel pipes, straight seam steel pipes, spiral steel pipes, and other steel pipesB. Epoxy resin paint: a two-component, high-solid paint with epoxy resin as the main agent. It is divided into primer and topcoa

The difference between hot-rolled seamless steel pipe and cold-rolled seamless steel pipeIn terms of processing technology: Hot rolling is hot processing, and cold drawing is cold processing. Hot rolling is rolling above the recrystallization temperature, and cold rolling is rolling below the recrys

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