The use of steel flanges in industrial structural parts is mainly to improve the connection effect and keep the pipeline sealed without leakage. However, many steel flanges will experience corrosion and aging after a period of use, thus losing the sealing effect, so It is very necessary to periodica

Spiral steel pipes are mainly used as fluid pipes and piling pipes. After the steel pipes are made, if they are used for running water, they will generally be treated with anti-corrosion on the inner or outer surface. The general anti-corrosion includes 3pe anti-corrosion, epoxy coal tar anti-corros

Different types of oil casing used in oil production: Surface oil casing protects the well from contamination by shallow water and shallow gas layers support wellhead equipment and maintain the weight of other layers of casing. Technical oil casing separates pressure at different levels so that dril

The spiral seam submerged arc welded steel pipe rotates and starts to enter the soft formation. Under the action of the tri-cone, the drill bit first produces elastic shear deformation of the formation, and then it is removed under the pressure of the tri-cone. In the simulated environment, the soft

1. Different power sources: the same energy is required, but the power sources of crude oil pipelines and natural gas pipelines are different. The power source of the crude oil pipeline is a centrifugal pump, and the power source of the natural gas pipeline is the compressor.2. Different temperature

To prolong the service life of the spiral steel pipe, the first thing you should think about is to do its anti-corrosion work well. Because the pipes are mostly stored outdoors, they are most likely to rust after being exposed to wind and rain, so they are corroded, and the pipes can be processed an

Precautions for storing straight seam steel pipes:Most of the merchants did not use the straight seam steel pipe soon after purchasing it. So is there anything we need to pay attention to in the storage of straight seam steel pipes? The staff of straight seam steel pipe manufacturers reminded that t

The steel pipe pipeline is the main transportation channel for production. The supply of materials and the flow of the process are realized by pipelines of different specifications, pressure levels, and shapes. There are countless elbows, flanges, and welds in the running pipeline. If one of the int

In terms of the welding process, the welding method of spiral welded pipe and straight seam steel pipe is the same, but the straight seam welded pipe will inevitably have many T-shaped welds, so the probability of welding defects is also greatly increased, and the welding residue at the T-shaped wel

Important components of alloy steel and thick parts must be preheated before welding.The purpose of spiral steel pipe preheating before welding is as follows:(1) Preheating can slow down the cooling rate after welding so that hydrogen diffuses in the weld metal and escapes to avoid cracking caused b