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Galvanized Bar Grating

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​The steel grating is made of flat steel and cross-arranged according to a certain spacing and cross-bar, and welded into a steel product with a square lattice in the middle.

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The steel grating is made of flat steel and cross-arranged according to a certain spacing and cross-bar, and welded into a steel product with a square lattice in the middle. The steel grating is mainly used for the ditch cover, the steel platform plate and the steel. Tread step board. The cross bar is generally made of twisted square steel, or flat steel can be used as a cross bar.

Steel gratings are generally made of carbon steel. The exterior is hot-dip galvanized or painted to prevent oxidation. It can also be made of stainless steel. Because the anti-corrosion performance of painted bar grating is far less than that of hot-dip galvanized steel grating, and the cost of stainless bar grating is too high, hot-dip galvanized bar gratin gis usually used.

 

Production Standards

The production standard of hot-dip galvanized steel grating, China is YB/T4001.1-2007 standard; in addition, the United States, Britain, Australia and New Zealand also have their own standards. The steel standard is in accordance with GB700-88, GB1220-92.

 

Method for manufacturing hot-dip galvanized steel grating

The hot-dip galvanized bar grating is a hot-dip galvanized steel plate for the pressure-welded bar grating or the pressure-locked steel grating.

 

Types of Hot-Dip Galvanized bar grating

According to the production process, it can be divided into hot-dip galvanized bar grating and pressure-locked hot-dip galvanized steel grating; according to the shape of the bearing flat steel, it can be divided into I-type galvanized steel grating, zigzag hot-dip galvanized bar grating and plane. Hot-dip galvanized steel grating.

 

Fixing Method Of Hot-Dip Galvanized Steel Grating

Two methods of welding and mounting clip fastening are available. The advantage of welding is that it is permanently fixed and will not be loose. The specific position is on the first flat steel at each corner of the steel grating, and the weld length is not less than 20mm and the fillet is not less than 3mm. The advantage of the mounting clip is that it does not damage the hot dip galvanized layer and is easy to disassemble. At least 4 sets of mounting clips are required for each board, and the number of mounting clips is increased as the length of the board increases. The safest method is to directly weld the screw head to the beam without using the lower clamp, so that the bar grating will not slip off the beam due to the looseness of the mounting clip.

Galvanized-Bar-Grating

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