Steel Fabrication Factory

 Steel Fabrication Factory

Seamless steel pipes are relatively common in daily use. Generally, seamless steel pipes have some corresponding uses in the case of engineering decoration. There are also many kinds of seamless steel pipes, one of which is called hot-rolled seamless steel pipes. Generally, hot-rolled seamless steel pipes are more common in application.

What is the production process of hot-rolled seamless steel pipe? Specifically, a round tube billet is heated, then pierced, three-roll cross-rolled, continuous rolling or extruded, followed by stripping, sizing, and cooling , Then form the billet tube, and then straighten it. After the straightening is completed, it will be tested by hydraulic pressure. After the test, it will be marked and finally put into storage.

Transportation of steel coils from steel mills

Inspection and stacking of steel coils in the factory

Steel coil stretched into the processing line

Preliminary shaping by roller stamping

Secondary shaping by roller stamping

Laser high temperature welding

Two-axis four-way grinding

Check and Correct

High pressure cleaning

Measure and Cut

Final inspection and stacking

Sales and Shipping

Hoisting

Applicate and build up

Seamless steel pipe is a long strip of steel with a hollow section and no seams around it. The steel pipe has a hollow cross-section and is widely used as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, the steel pipe is lighter in weight when the bending and torsional strength is the same. It is an economical cross-section steel and is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, and bicycles. Frames and steel scaffolding used in building construction, etc. The use of steel pipes to manufacture ring parts can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing man-hours, such as rolling bearing rings, jack sets, etc., which have been widely used in steel pipes. Steel pipe is also an indispensable material for various conventional weapons, and barrels, barrels, etc. must be made of steel pipes. Steel pipes can be divided into round pipes and special-shaped pipes according to the shape of the cross-sectional area. Due to the condition that the circumference is equal, the area of the circle is the largest, and more fluid can be transported with a circular tube. In addition, when the ring section is subjected to internal or external radial pressure, the force is relatively uniform, so most steel pipes are round pipes. However, round pipes also have certain limitations. For example, under the condition of plane bending, round pipes are not as strong as square and rectangular pipes in bending strength. Some agricultural machinery skeletons, steel and wood furniture, etc. often use square and rectangular pipes. According to different purposes, special-shaped steel pipes with other cross-sectional shapes are also required.