At least three special-shaped steel grating bases must be placed at the two ends and the middle part. Don’t just put it on the two ends and leave it in the middle. If there are too many steel gratings pressed on it, it will cause deformation and make it a different level.
When welding special-shaped steel gratings, the flat steel is straightened first and then the process welding is carried out. If the flat steel shows an arc-shaped bending state, the reason is that the flat steel is not straightened during welding, but such flat steel is directly welded on the mold, and the surface looks straight, in fact At this time, the steel grating already has relatively strong internal stress.
The special-shaped steel grating is treated to remove the internal stress of the steel grating before pickling and polishing. If the internal stress is manifested, the shape becomes a horizontal arch, and polishing is not paid attention to. This situation generally does not cause such problems in modern industrial production.
The special-shaped steel grating should be placed steadily during transportation to make it evenly stressed. Don't beat it hard during loading and unloading, but should be lifted and handled gently.
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