Through the process of steel extrusion the profiles having fixed cross-sectional area are produced that are then used in estimate of applications. When any metallic profile is exposed to the steel extrusion process the resultant is steel extruded profile. The steel extrusion made are then used in automotive, rail and rail track, heavy machinery, and building industry.
Process of Steel Extrusion
The process consists of four methods of productions, that are:
Hot Rolling
Hot Extruding
Cold Drawing
Laser Welding
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Hot Rolling
In Hot Rolling formula billet or slab of distance up to 70 m are made by two cylindrical rolls that rotate in opposite directions. The extruded profiles created by this formula are used in estimate of applications like rail tracks, automotive etc. With this process more focused and selective strength is given to the exact part of the steel profile.
Hot Extruding
During hot extrusion process, pre heating of round steel billet is done. Then stock is then pushed straight through a forming die with the extrusion force of 2200 t. Complicated profile shapes are made straight through the process of hot extruding process. Single profile with discrete thickness can be produced by the hot extrusion method. The steel extruded profiles made straight through hot extruding process are used in very sensitive areas and the area that needs great germ-free environment.
Cold Drawing
Complex profile cross sections are made straight through the technology of cold drawing. The profile bars made are pre heated and then de-scaled. After de-scaling it is drawn straight through a forming die. This process is repeated 3-4 times. It helps in the correction in exterior capability as well as dimensional accuracy. These profiles also have sharp edges and uninterrupted grain orientation.
Laser Welding
In the process of laser welding, both- appropriate geometries as well as extruded or hot rolled pre-shapes are used. The steel extruded profiles with this process get the clean welding seams and because of this speculate these are used in building industry to make fine architectures. These profiles have precision fit and produced in free form shapes.
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