After the seamless steel pipe manufacturing is completed, after the acid washing, according to customer requirements, galvanized treatment, there are generally three types of galvanized zinc, which are hanging plating and galvanized belt. The seamless steel pipe process is the most zinc. It can reach more than 500g2 per square meter, and seamless steel pipes are about 300g per square meter, while the welded pipe with a galvanized belt is the least amount of galvanized, only 60-150g per square meter. After the seamless steel pipes are galvanized, the silk buckle processing business can be started. Silk buckle processing is made of professional lathe processing, requiring the tapered snail distance buckle, etc. The two ends are carried out to clean the wire buckle data, and then install the pipe hoop with one end, and the plastic caps are installed on one end. Galvanized car silk steel pipelines are divided into US -label wire steel tubing British bidding wire steel pipes.
The manufacturing of the pipe hoop is the most fine and the focus of the entire product, because its entire project is a large part of the pressure tolerance. The material of the pipe hoop is higher than or the minimum is equal to the material of the seamless steel pipe itself. After the round steel is cut, it is processed by the lathe fixed size, then the wire buckle is performed, and the thread and size are inspected.
Generally, the appearance of inferior thermal galvanized spiral steel pipes is easy to show folding. The presence of folding phenomenon is mainly due to the folding lines that prevent forming, and it presents vertical spread on the hot -dip galvanized spiral steel pipe. The reason for this phenomenon is that the manufacturer's blind pursuit of efficiency is large, and the comparison of pressure conditioning is large. During the rolling process, the phenomenon of folding phenomenon is caused. The phenomenon greatly reduces the strength of the steel.
