Flat Steel Bar, refers to the width of 12-300mm, thickness 4-60mm, rectangular cross-section and slightly blunt side of the steel. Flat Steel Bar can be finished steel, can also be welded pipe blanks and thin rolled sheet thin plate. The main purpose: Flat Steel Bar as a useful material can be used for hoop iron, tools and mechanical parts, construction for the frame structure, escalators.
Precision Flat Steel Bar production process Flat Steel Bar finishing machine works is the cold Flat Steel Bar bad with two groups of staggered arrangement of the leveling wheel on the direction of the thickness of the pre-school and the final leveling; with a pair of relatively arranged finishing The width of the wheel is compressed to achieve the desired parameters, the amount of compression is adjustable; with five staggered alignment of the alignment wheel on the width of the straightening of the system mainly by the control box, fine The whole pressure roller, pre-leveling unit, finishing unit, straightening unit.
The production process can be summarized as follows: pre-school level → finishing → straight → back to school Flat Steel Bar / a / b wide 12-300mm, thickness 4-60mm, rectangular section and slightly pure side of the steel. Flat Steel Bar can be finished steel, can also be welded pipe blanks and thin rolled sheet thin plate. The main purpose: Flat Steel Bar as a useful material can be used for hoop iron, tools and mechanical parts, construction for the frame structure, escalators. Flat Steel Bar according to its shape is divided into two kinds: flat spring Flat Steel Bar and single-sided double-slot spring Flat Steel Bar. Hot-rolled spring Flat Steel Bar is mainly used in the manufacture of cars, tractors, rail transport and other machinery on the plate spring.
For hot-rolled Flat Steel Bar, the lower the surface roughness, the more smooth the surface, the more difficult the foreign body, the lower the probability of local corrosion. Therefore, Flat Steel Bar should be used as much as possible finishing surface. Flat Steel Bar surface cleanliness is very important, after the passivation of the cleaning should be carried out carefully, because the residual acid to promote the cathode reaction, so that the film rupture, so that hot-rolled Flat Steel Bar activation, corrosion resistance decreased dramatically. Use environmental media. The passivation film of Flat Steel Bar is thermodynamically inhibited by the metastable structure. Its protective effect is related to environmental medium. The use of regular cleaning, removal of harmful substances long-term private attached to the surface.