This paper briefly introduces the production process of large diameter spiral steel pipe, which must pass rigorous physical and chemical inspection before joining. Wire or double wire submerged arc welding is used for end to end connection of strip steel, and self-submerged arc welding is used t...

With the continuous progress of scientific and technological innovation, there are more and more steel pipe materials on the market, but no matter how to change, polyurethane insulation pipe to resist people now, it is no longer a novel word Its existence can effectively support our temperatu...

How to identify the quality defects of stainless steel butt welding elbow, there are many types of forms can be produced and processed, the selection of pressing method is difficult to produce such a large mold And it takes a particularly high manufacturing time, so how should we identify the...

In humid and corrosion-resistant areas, IPN8710 anticorrosive steel pipes must be used. For example, in the corresponding secluded areas such as sewage pipes, when there is damage such as ruptured steel pipes, maintenance is also more difficult. Therefore, the use of this steel pipe can increase...

The application of internal coated plastic insulation steel pipe is very common, its production process is very careful, for the application in the construction industry is still relatively common, what is the production process, we can all understand nternal plastic coated insulation steel p...

There are many things to pay attention to when using and maintaining stainless steel stamping elbows, requiring users to carry out in accordance with the corresponding way, use and maintenance in accordance with an accurate and fair way, and listing the following precautions for everyone Stai...

For a long time, there are many manufacturers and users in view of the unreasonable storage, anti-corrosion insulation finished steel pipe or bare pipe and lead to the destruction of the steel pipe anti-corrosion layer, so that the user is very confused, the seller should at least half a month b...

Steel sleeve steel insulation steel pipe can prevent shrinkage hole rupture, double-layer welding to complete the wrong connection head, each welding should be completed as soon as possible, when the weld is finally broken, should take effective prevention of rupture, to ensure that there is no ...

It is a general term for a variety of stainless steel pipe connection workpieces, which is beneficial to the device, strong performance, durable and other series, and is widely used in various pipe construction and devices. Therefore, how should the stainless steel butt welding elbow be insta...

Carbon steel tee wear-resistant material is the key to new materials, plays a role in promoting and supporting the growth of high-tech, in the world's new material research field, wear-resistant materials account for about 79%. With the advent of the Internet era Unique wear-resistant materia...

There are many matters that need attention in the use and maintenance of stainless steel elbows, and the operator needs to use them in accordance with the corresponding way, and use and maintenance in accordance with the exact and reasonable way. Next, warm reminders of common problems are as fo...

Obviously, TPEP anti-corrosion steel pipe not only has the strength of steel pipe, but also has the advantages of corrosion resistance, alkali resistance and low resistance of plastic pipe. It is a new type of composite fluid transport pipeline. Improved galvanized pipe defects, such as susce...