Galvanized square pipe is a hollow square cross-section steel with a square cross-section shape and size made from hot-rolled or cold-rolled galvanized strip steel or galvanized coil plate, which is formed by cold bending and then high-frequency welding. The quality of steel pipes and galvanized square pipes has always been an issue that everyone is more concerned about. During the inspection process, the most important thing is the galvanizing quality of galvanized square pipes. What are the factors that affect the galvanizing quality of hot-dip galvanized square pipes? The editor will share them with you below.
1. Operation speed: When the hot-dip galvanized square tube is immersed in zinc, it should be as fast as possible while ensuring the safety of the workpiece and personnel. This can ensure that the film thickness of each part of the entire galvanized square tube is the same. The lifting speed should be based on Hot-dip galvanized square pipes use different speeds depending on their structure, material, and length. Generally, the lifting speed is 1.5 meters/minute to ensure better zinc liquid reflow and surface brightness.
2. Use of tooling: Hot-dip galvanizing tooling is very important for the galvanizing process.
Galvanized square tubes have good strength, toughness, plasticity, welding and other process properties and good ductility. The alloy layer is firmly attached to the steel base. Therefore, hot-dip galvanized square tubes can be cold punched, rolled, drawn, Bending and other forming without damaging the coating; suitable for general processing such as drilling, cutting, welding, cold bending and other processes. The surface of the hot-dip galvanized square tube is bright and beautiful, and can be directly used in projects according to needs.
The above is what the editor of GNEE STEEL has introduced to you about the factors that affect the quality of galvanized square pipes. I hope it will be helpful to everyone!