1. Rolling method: Stainless steel pipe bending generally does not require a mandrel, and is suitable for the inner round edge of thick-walled stainless steel pipes.2. Roller method: place a mandrel in the stainless steel tube, and push the outside with a roller at the same time.3. Stamping method:
There are two main differences between oil casing and oil drill pipe: 1. Different uses; 2. Different materials.Oil casing is a steel pipe used to support the walls of oil and gas wells to ensure the normal operation of the entire oil well after the drilling process and completion. Each well uses se
After a series of treatments such as forming, welding, and cooling, the spiral steel pipe still needs to be sawed. In this link, the length of the technical spare ruler directly affects the quality and sales of the finished welded pipe, so the length of the spare ruler should be controlled between (
Steel elbow: the most commonly used is the seamless steel elbow, which is divided into a long-radius elbow and a short-radius elbow. Among them, the long-radius elbow is the most commonly used, and its application is also very extensive.Steel elbows are distinguished according to specifications: sma
1. It completely solves the problem of mutual friction between the closed surfaces of traditional connecting steel pipes and affects the sealing; the flow resistance is small, and the resistance coefficient of the stainless steel tee is equal to that of the steel pipe section of the same length;2. T
The resistance of the fluid is responsible for the energy loss (ie drag loss). One is the resistance loss along the way caused by the viscosity and inertia of the fluid; the other is the local resistance caused by the blockage and disturbance of the solid wall to the fluid due to the sudden expansio
1) Thin-walled stainless steel pipes and fittings should not be in direct contact with cement, cement mortar, or concrete. When the pipeline is laid in the dark, anti-corrosion tape should be wrapped on the outer wall of the pipe or a plastic-coated thin-walled stainless steel pipe should be used.2)
The transportation of oil and gas through pipelines requires a certain pressure. The longer the pipeline, the higher the pressure required for oil and gas transportation. The pressure of long-distance pipelines is generally between a few MPa and more than ten MPa. Therefore, the pipeline must have S
The spiral steel pipe is drilled in rotation and begins to enter the soft formation. Under the action of the tritone, the drill bit first produces elastic shear deformation of the formation and then is removed under the pressure of the tritone. In the simulated environment, the soft soil is homogene
Horizontal fixed welding of thick-walled stainless steel pipes:Stainless steel pipe is a hollow long strip of steel, which is widely used as a pipeline for transporting fluids, such as oil, natural gas, water, gas, steam, etc. Stainless steel pipes are lighter in weight when they have the same bendi
