Steel grating is a metal product with a square grid in the middle, which is formed by cross-arranging flat steel and cross bars at a certain distance. Crossbars are usually made of twisted square, round or flat steel. The outside is hot-dip galvanized to prevent oxidation. Steel grating is suitable for alloys, building materials, power stations and boilers. shipbuilding. Petrochemical, general industrial plants, municipal construction and other industries have the advantages of ventilation, light transmission, anti-skid, strong bearing capacity, beautiful and durable, easy to clean, easy to install, etc., and are widely used in all walks of life at home and abroad. The following summarizes the production technical requirements of steel grating, hoping to help you choose the best steel grating.
Steel grating: production technical requirements
All materials of steel grating must be purchased in strict accordance with the purchase size requirements, and the production size requirements of steel grating shall be guaranteed.
The twisted square steel shall be connected and welded to the stressed flat steel, and the mechanical strength of the stressed flat steel shall not be reduced by grooves or openings.
The minimum support length of the stressed flat steel is equal to the thickness of the steel grating, with a minimum of 30 mm.
The welding height shall not be less than the thickness of the load-bearing flat steel, and the length of the weld shall not be less than four times the thickness of the load-bearing flat steel.
When fixing the steel grating, weld three times on each side, once on the centerline of the plane and once on both ends. The welding position can be the easiest welding position inside or outside the frame. The length of the weld is equal to the width of the mesh.
Under normal or special conditions of use, the maximum clear distance between the load-bearing flat steel and the cross bar shall not exceed 30 mm.
Tolerance: Height==32mm0.2mm, Height==40mm0.2mm, Thickness=3mm0.15mm ~ 0.2mm.
Manufacturers must take all technical measures to ensure that each steel grating and its connections are adjusted on the job site, and temporary cutting and welding are not allowed. Trimming, cutting and edging should be done on-site when necessary, and no trimming is required in inaccessible areas.
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