Monthly Archives: January 2022
Process Flow and Precautions of High Frequency Welded Pipe(ERW) Production
High-frequency welding is a type of welding method that uses resistance heat generated by high-frequency currents flowing through the continuous contact surface of the workpiece to achieve mutual conn...
Research on C02 and H2S Corrosion of Oil and Gas Pipelines
With the increasing exploitation of oil and natural gas, the corrosion and protection of oil and gas pipelines have also received more and more attention. CO2 exists in oil and gas formations as a com...
Welding Seam Treatment and Process Characteristics of Spiral Pipe
Weld processing:
1. If the gap is too large, the proximity effect will be reduced, the eddy current heat will be insufficient, and the weld will have poor intercrystalline joints, resulting in non-fus...
Method of Preventing Intergranular Corrosion of Seamless Steel Pipe
Method of preventing intergranular corrosion of seamless steel pipe:
1) Reduce the amount of carbon in the steel so that the amount of combined carbon in the steel is lower than the saturated solubili...
Application Range of Seamless Steel Pipe
Seamless steel pipe products should be applied in strict accordance with the material or performance during application, otherwise it may cause very serious consequences. At present, the application o...
Features and Causes of 8 Defects of Seamless Steel Pipe
If there are some defects in the seamless steel pipe, it will undoubtedly have a fatal impact on the quality of our products. So how to avoid these defects? Then you need to understand the reasons for...
What are the Processes of Seamless Pipe before Galvanizing?
The pre-treatment process of seamless pipe galvanizing includes five processes: alkali washing, pickling, rinsing, soaking aid, and drying. The following galvanized seamless pipe manufacturers will gi...
Electric Resistance Welded (ERW) Pipe Manufacturing Process
Electric resistance welding (ERW Welded Pipe) is used to transport oil, natural gas and other vapor and liquid objects, which can meet various requirements of high and low pressure, and currently occu...
Do Seamless Steel Pipes Need to be Painted?
Do seamless steel pipes need to be painted? Under normal circumstances, the seamless steel pipe has an oxide film on the surface after pickling, and the surface is smooth after pickling. Even if the s...
The Role of Solution Treatment of LSAW Steel Pipe
Straight seam steel pipes are steel pipes whose welds are parallel to the longitudinal direction of the steel pipe. Usually pided into metric electric welded steel pipe, electric welded thin-walled pi...
