Yearly Archives: 2022

The causes and prevention methods of the stomata of the spiral steel pipe welds, the shortcomings of the spiral steel pipe weld zone are stomata, hot cracks, and undercuts. Spiral steel pipe weld poro...

How to control the oil special pipe? Let's briefly understand: Valves are used to open and close mechanical devices that may regulate the flow of media in a pipe. There are many types of valves and t...

The outer thickened oil casing adopts the round pipe thread of the taper pipe, and is thickened through the joint to complete the joint and seal. It is one of the basic thread buckle types issued by t...

The oil casing is a steel pipe used to keep the oil and gas well walls to ensure the normal operation of the well during the drilling process and after completion. Any well should use several layers o...

In fact, in many of today's life, seamless steel pipes are indispensable. One of the most remarkable features of seamless steel pipes is that they do not require any cutting and welding during the pro...

Thick-walled seamless steel pipes are common in our lives. Thick-walled seamless steel pipes are a kind of seamless steel pipes. They are also widely used, and they play an important role in machine m...

Hydrostatic pressure test is an indispensable part in the manufacturing process of steel pipe. Its function is to detect the anti-leakage function of steel pipe under the standard test pressure and st...

The commonly used buckle types for oil casing pipes are pided into three types: EU, NU and New Vam.    These three types of buckles can be found in the tool shop. The EU and NU are difficult to distin...

Straight seam welded pipe has simple production process, high production efficiency, low cost and rapid development. The strength of the spiral welded pipe is generally higher than that of the straigh...

Seamless steel pipes usually lose their load carrying capacity at temperatures of 450 to 650 ° C, causing large deformations, resulting in bending of steel columns and steel beams. As a result, they c...