There are two types of stainless steel gratings: machine pressure welding and manual welding:
1. The handmade steel grating is first punched on the flat steel. Then put the cross bar into the hole for spot welding, there will be a gap between the cross bar and the flat steel. But every contact point can be welded. To achieve the equivalent melting connection of flat steel and twisted steel.
2. The machine pressure welding uses a high voltage resistance pressure welding machine. The manipulator automatically places the crossbar on the flat steel evenly arranged, and press-welds the crossbar into the flat steel by powerful electric welding power and hydraulic force. Thereby, a steel grating with firm solder joints, high stability and high strength can be obtained.
3. Stainless steel grating is divided into flat type, tooth type and type. According to different use environments, different protective treatments can be applied to the surface.
4. Compared with machine pressure welding, manual welding will ensure that the firmness and strength will be improved. But the appearance is not as good as pressure welding.
https://www.topsteelgrating.com/
