The material of the steel grating can be made of flat steel with a width of 20-70mm and a thickness of 2-10mm and twisted square steel (cross bar) made of 6-8mm after stretching and twisting. The flat bar is placed vertically and horizontally on top of the flat bar, and the twisted square bar is placed vertically and horizontally on top of the flat bar. The two are firmly pressed and welded together using a high-power welding transformer and a high-voltage piezoresistive welding machine. The flat steel mainly plays the role of bearing, and the twisted square steel mainly plays the role of fixing the flat steel and preventing slipping. Example of use of painted steel grating:
1. The heavy-duty painted steel grating formed by welding flat steel with a width of 65mm-200mm and a thickness of 5mm-20mm is a post-heavy-duty steel grating. It is suitable for large freight yards, docks, coal mine roads and bridges, etc., and can carry large trucks through.
2. Painted steel grating (flat steel spacing 40mm). Flat steel grating with 40mm pitch is the most economical and lightest variety. It is ideal when the span is small.
3. Painted steel grating (flat steel spacing 60mm). Steel grating with flat bar spacing 60mm and cross bars 50mm is suitable for mining industry. It solves the problem of mineral splash on the surface of the plate and is usually specified for processing plants in the mining industry.
4. Painted steel grating (flat steel spacing 30mm). The distance between steel grating and flat steel is 30 mm, which is the most widely used variety in the industrial field. Among the steel gratings commonly used in the series, it has the strongest surface impact resistance.
5. The painted steel grating welded with I-shaped flat steel (I-shaped flat steel), has the characteristics of light weight and large load. It is suitable for various occasions, especially aisles, visiting platforms, etc.
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