Product Information
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Common problems and solutions during the cold working and forming process of stainless steel
(1) Because there are defects such as dirt, scratches, pits, pits or heavy skin on the surface of the blank to be processed, these defects are amplified along with the processing deformation of the blank during the cold forming process, which directly leads to dirt and corrosi...Read more -
Steel elbow process flow
Seamless steel elbow: Steel elbow is a kind of pipe fitting used at the end of a pipeline. Among all the pipe fittings used in the pipeline system, the proportion is about 80%. Usually, different forming processes are selected for steel elbows of different materials or wall th...Read more -
Why does precision steel pipe production need pickling
The role of pickling and passivation of precision steel pipes in the process of prefabrication, welding, testing, and heat treatment will cause iron oxide, welding slag, grease, and other dirt to accumulate on the surface of the pipes (carbon steel pipes, carbon copper pipes, ...Read more -
Anti-corrosion painting and development analysis of straight seam steel pipe
The performance and function of the original color straight seam steel pipe in the specific use process, the fully demonstrated operational contribution, and the resulting use performance. After painting, the straight seam steel pipe is also very energetic and beautiful when i...Read more -
Causes of missing plating in hot dip galvanizing of seamless steel pipes
Causes and solutions of missing plating caused by hot-dip galvanizing of seamless steel pipes: 1. The surface of the plated parts is not clean ⑴The surface of the plated parts contains paint, grease, and solder; it can be polished or scrubbed with related solvents. ⑵ iron oxid...Read more -
Forming method and connection type of large-diameter steel pipes
At present, the main production process of large-diameter steel pipes in my country is hot-rolled large-diameter steel pipes and thermally expanded-diameter steel pipes. The largest size of thermally expanded seamless steel pipes is 325 mm-1220 mm and the thickness is 120mm. T...Read more -
What is the difference between BA-grade stainless steel pipe fittings and Ep-grade stainless steel pipe fittings
Classification of stainless steel pipe fittings AP, MP, BA, EP AP<MP<BA<EP. AP: Acid Pickling. Use acidic solutions such as nitric acid and fluorous acid to remove the oxide layer of the steel pipe. Cheap and fast, but it is easy to cause grain boundary corrosion, and...Read more -
Identification method of fake and inferior steel pipes
1. Fake and inferior thick-walled steel pipes are prone to folding. Folding is a variety of fold lines formed on the surface of thick-walled steel pipes, and this defect often runs through the longitudinal direction of the entire product. The reason for the folding is that the...Read more -
Fireproof properties of steel structures
Steel is a non-combustible building material that is resistant to earthquakes and bending. In practical applications, steel can not only increase the load capacity of buildings relatively, but also meet the needs of architectural design aesthetics, and avoid the defects of con...Read more