The hot-dip galvanized steel grating is made of load flat steel and horizontal bars arranged at a certain distance in warp and weft, welded on a high-voltage resistance welding machine to form the original plate, and deep-processed through cutting, incision, opening, wrapping and other processes to obtain the finished product required by the customer , has strong impact resistance, strong corrosion resistance and heavy load capacity, elegant and beautiful, and has excellent performance in municipal roadbed and steel platform construction projects. So how do we use hot-dip galvanized steel grating to make holes? What are the requirements?
1. Measurement of parameters related to opening: During construction, actual parameter measurement (drawing data) directly affects whether the installation size of hot-dip galvanized steel grille is accurate. The reference point of the hot-dip galvanized steel grid opening is required to be consistent with the reference point of the pipeline installation, and the actual outer diameter deviation of the measured pipeline is ±10mm.
2. Specific implementation requirements for openings: the surface of hot-dip galvanized steel grating is generally galvanized, and mechanical cutting is used according to the position of the line, and the construction surface is smooth and clean, which is easy for the next construction; when the openings are uniformly round ( or square), its radius (or side length/2) shall be implemented according to the following standards.
3. Opening form: There are two types of openings on the hot-dip galvanized steel grid: circular openings and square (oval) openings. In principle, square (elliptical) openings are used for row pipes, and circular or square openings can be unified for single pipes.
4. Requirements for opening and marking: According to the reference point and the size of the drawing, the specific position of the opening should be marked. In the process of drawing the line, the thermal expansion of the pipe and the thermal insulation allowance should be considered.
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