Monthly Archives: January 2022
What are the Requirements for the Inner and Outer Surfaces of the Oil Casing Pipe?
Oil casing pipe is used for oil well drilling, mainly used to support the well wall during the drilling process and after completion, to ensure the progress of the drilling process and the normal oper...
The Great Role of Oil Casing Pipe
In the past, when oil extraction was carried out, simple mechanical tools were used to dig wells, and then oil workers would stand on the side of the well to extract oil and transport the oil by pipel...
Raw Material Influence on ERW Steel Pipe
In the manufacturing process of ERW steel pipes, how to meet the technical requirements while ensuring product quality standards and customer needs?
Analysis of factors affecting product quality du...
What are the Galvanizing Methods for Thick-walled Seamless Steel Pipes?
Thick-walled seamless steel pipe is a kind of seamless steel pipe. It is named mainly because of the thickness of the wall. It is widely used in pipeline installation to transport chemical liquids suc...
Thick-walled Seamless Steel Pipe for Scaffolding Construction
Because thick-walled seamless steel pipes of different specifications can be used in different fields, the most commonly used field is in construction engineering. The scaffolding we often see in cons...
How to Clean Thick-walled Seamless Steel Pipes for Boilers?
Thick-walled seamless steel pipes are widely used in many fields, especially in boilers, which are the most common. However, the use of thick-walled seamless steel pipes in boilers is also the most tr...
Advantages and Disadvantages of Straight Seam Steel Pipe
Straight seam steel pipe is a steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe. The production process of straight seam steel pipe is simple, with high production...
Electric Resistance Welding
Electric resistance welding (ERW) refers to a method in which electric current passes through the weldment and the resistance heat generated at the contact point as a heat source to locally heat the ...
Welding Principle of ERW Steel Pipe
High-frequency welding originated in the 1950s. It is a new type of welding process that uses the skin effect and proximity effect produced by high-frequency current to connect steel plates and other ...
Common Problems in High Frequency Welding and their Solutions
Common problems in high frequency welding and their causes and solutions:
⑴ Weak welding, desoldering, cold folding;
Reasons: 1. Mismatch between output power, pressure and speed. 2. The edge of...
