Page 4 of Steel Pipe News
1. Folding defect Irregular distribution: If mold slag remains locally on the surface of the continuous casting slab, deep folding defects will appear on the outer surface of the rolled tube, and they...
Pipe processing step requires strict, in which the hot rolling process is very important process, in which to introduce the following precautions during the heating pipe. 1, the pipe must be able to feed...
1. General carbon steel tube Generally, steel with a carbon content of≤0.25% is called low-carbon steel. The annealed structure of low-carbon steel is ferrite and a small amount of pearlite. It has...
Heat strengthened, high impact toughness, may not be sensitive to lack. Excellent thermoplastic, high speed extrusion into a complex structure, thin-walled, hollow profiles of various, or forgings forged...
What is the material of hot-rolled seamless steel pipe? Seamless steel pipe is generally used: it is made of high-quality carbon-structured steel such as 10, 20, 30, 35, 45, 16Mn, 5MnV and other low-alloy...
1. Leveling milling: After the steel sheet leveling machine anvil original curved, then through the edge milling machine for milling steel two-sided margin, so as to meet the needs of the plate width,...
The wall thickness can reach 0.25mm, and the outer diameter of the thin-walled tube can reach 5mm. The wall thickness is less than 0.25mm, and the dimensional accuracy of cold rolling is higher than that...
Processing methods of pipe fttings there are many. Many also belong to the scope of machining and the like, the most widely used method of stamping, forging method, roller processing method, rolling method,...
To meet the various requirements of the premise of increasing the use of progress, extend the life of galvanized steel, zinc coating materials are evolving. Major new coatings are: (1) A zinc-iron...
Spiral steel pipe cold drawn, hot rolled tube defects, such as cracks or spiral steel high-precision cold drawn pipe after the tank, in the course of the fracture, almost no plastic deformation occurs,...
Hot-rolled seamless steel pipe from the tube to the product generally requires two heating, which perforated tube before and after heating and rolling blank pipe diameter at a given pre-heating; production...
1. The analysis of plasticity of square pipe Plasticity refers to the plastic deformation(permanent deformation) of metal material under the action of the load, which can not be damaged. 2. The analysis...