Leveling of Cast Iron Plates
During the pouring process, unevenness of the plates inevitably occurs in height relative to each other. As a result, once the entire platform is laid, the joints look as shown in the figure below, which is unacceptable for assembly and production work. Therefore, the final step during installation is leveling the cast iron platform to ensure a highly precise working surface. It is important to remember that such work should only be carried out after the cement mixture in the wells has fully set, usually requiring three to four days.
Height irregularities are compensated using anchor bolts. Leveling the platform requires special surveying instruments—a level, which allows determining the height differences between several points on the surface.
The process is carried out as follows: first, the heights of the four corner points of each plate are measured. Then, based on the obtained data, the plate with the highest point is determined; it will serve as the zero height reference. Next, all remaining points are raised to zero. This is done by turning the adjustment nut on the anchor bolt with a spanner.
Once the plates are leveled, a control leveling is performed to eliminate possible errors during installation. Then, lock nuts are installed, and metal caps are placed over the technological holes for adjusting the anchors. The platform is now ready for handover to the client and for production work to begin.
