The steel grating is beautiful and practical, and can meet the load requirements under different conditions. Its performance is better than other products of the same purpose. In recent years, it has been more and more widely used. Its production method: using a high-voltage electric welding machine, the manipulator automatically horizontally lays the crossbar on the evenly arranged flat steel, and press-welds the crossbar into the flat steel through strong electric welding power and hydraulic pressure, so as to obtain a firm and stable solder joint And extremely high-strength steel grating. Mainly used to make drain cover, steel structure platform board, steel ladder step board, etc.
According to the surface shape, it can be divided into serrated grating, flat steel grating, I-shaped steel grating and compound pressing;
According to the surface treatment, it can be divided into hot-dip galvanized grating, spray-painted steel grating, and cold-dip galvanized steel grating.
Spacing between flat bars and cross bars: Normally, the spacing between the centers of steel gratings and flat bars is distinguished by series:
Flat steel spacing series 1: 30mm;
Flat steel spacing series 2 is: 40mm;
Flat steel spacing series 3 is: 60mm.
Crossbar spacing series one is: 50mm,
The second series of crossbar spacing: 100mm.
1. Steel grating flat steel: The material is Q235B or stainless steel, there are ordinary flat type, non-slip tooth type and I-shaped steel, etc.; stainless steel materials generally include 201, 304, 316, etc. Common specifications are 20*3, 25*5, 30*3, 30*5, 32*3, 32*5, 40*3, 40*5, 50*3, 50*4, 50*5, 65*5 Wait.
2. Steel grating crossbar: round steel, twisted square steel, square steel or hexagonal steel made of Q235B or 304 stainless steel. Twisted square steel Its common specifications are 5*5mm, 6*6mm, 8*8mm, etc.
Beautiful appearance: simple design, silver appearance, modern trend;
Anti-theft design: the cover and the frame are connected with a mounting clip, which is anti-theft, safe and easy to open;
High strength: The strength and toughness are much higher than cast iron, which can be used in large-span and heavy-load environments such as docks and airports;
Investment saving: when large span and heavy load, the price is lower than that of cast iron, and it can also save the cost of stolen or crushed replacement;
Hot-dip galvanizing: strong anti-corrosion and wear resistance, free of maintenance and replacement;
Multiple specifications: it can meet the requirements of different environments, loads, spans, sizes and shapes.
Steel grating is suitable for alloys, building materials, power stations, boilers, shipbuilding, petrochemical, chemical and general industrial plants, municipal construction and other industries. It has the advantages of ventilation, light transmission, non-slip, strong bearing capacity, beautiful and durable, easy to clean, easy to install, etc.
Steel gratings have been widely used in various industries, mainly used as industrial platforms, ladder treads, handrails, passage floors, railway bridge sideways, high-altitude tower platforms, drainage ditch covers, manhole covers, road gratings, three-dimensional The fences of parking lots, offices, schools, factories, enterprises, sports fields, garden villas can also be used as exterior windows of houses, balcony guardrails, highways, railway guardrails, etc.
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