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Welding Process of Petroleum Casing Pipe
Welding process of oil casing pipe
(1) Selection of welding method: 80%Ar+20%CO2 gas shielded welding.
Selection of welding data: ER55-G welding wire is used, with a diameter of 3.2mm.
Welding paramet...
Inspection Standards for Seamless Steel Pipes
Inspection of geometric dimensions and shape of steel pipes:
1. Steel pipe wall thickness inspection: micrometer, ultrasonic thickness gauge, no less than 8 points on both ends and record.
2. Inspec...
The Specific Content of Seamless Steel Tube Acceptance
What are the specific contents of seamless steel pipe acceptance?
Inspection of geometric dimensions and shape of steel pipes:
①Wall thickness inspection of steel pipe: micrometer, ultrasonic thic...
Measures that the Oil Casing Plant can Take on the Production Line
In order to maintain the heating temperature of the petroleum casing pipe during rapid heat treatment, the heating temperature is evenly distributed along the longitudinal direction of the steel to ob...
ERW Steel Pipe as the First Choice for Urban Gas Pipeline Network
Why is ERW steel pipe the first choice for urban gas pipeline network? The main advantages and disadvantages are:
(1) High strength (large carrying capacity);
(2) The wall thickness is uniform and lig...
Urban Gas Pipeline Network Using ERW Pipe and its Anti-corrosion Problems
Comparison of pipe materials used in urban gas pipeline network:
At present, the urban gas pipeline network mainly uses ERW pipes, cast iron pipes and polyethylene (PE) pipes. From the perspective of ...
Acceptance Standard of ERW Steel Pipe
How to accept the ERW pipe?
1. Product quality certification document requirements
1) Welded steel pipes should have factory quality certification documents
Including: product certificate, material ce...
How to Improve the Yield Rate of Oil Casing Plant?
In the process of rapid heat treatment of steel induction heating, horizontally inclined roller rotation mechanism. The inclination of the device of the roller is wide and the inclination of the devic...
How to Avoid the Surface Decarburization Problem of Q345B Seamless Steel Pipe
The atmosphere that causes decarburization on the surface of Q345B seamless steel tubes is mainly oxidizing gases such as oxygen, water vapor and carbon dioxide. When these oxidizing gases come into c...
ERW Steel Pipe Process Performance Inspection Standards
ERW pipe process performance inspection:
1. Bending test: Bending test should be carried out on steel tubes with an outer diameter less than or equal to 50mm. The bending angle is 90°, the bending rad...
