Posts by wilson

1. High frequency welding process of straight seam steel pipe: according to the way in which the high frequency current generates heat in the workpiece can be pided into high frequency welding by cont...

The overall heat treatment process and overall heat treatment of the seamless square tube are characterized in that there is no temperature difference in the pipe wall during the treatment process, no...

The boiler tube is a type of seamless tube. The manufacturing method is the same as that of the seamless pipe, but there are strict requirements for the steel used in the manufacture of the steel pipe...

There are two main methods for forming welded square tubes: solid bending and hollow bending. 1. solid bending It means that the bending is compacted, and the inner and outer rollers and the inner ...

Apart from the factors such as coating variety, coating quality and construction condition, the surface treatment of elbow has an effect on the service life of the coating, which accounts for about 50...

1. The welded pipe is made of steel plate welded by high-frequency electric resistance welded pipe (ERW welded pipe), straight seam electric welded pipe (LSAW), spiral welded pipe.In electrical engine...

The oil casing pipe is a large-diameter pipe that acts as a fixed oil and gas well wall or wellbore. The casing pipe is inserted into the wellbore and cemented to help the wellbore separate the format...

The oil industry is an industry that uses a large number of oil pipes. Oil pipes play an important role in the oil industry: 1. The oil pipe has a large amount of consumption and spends a lot of mo...

The specification puts forward clear requirements for the remanence of the spiral steel pipe, so it is necessary to grasp the method of degaussing the spiral steel pipe. The communication degaussing m...

Spiral steel pipe is also called a spiral steel pipe, which is generally referred to as a spiral steel pipe with a diameter of more than 1 meter. Steel pipes are subject to water pressure, tortuosity ...