Protective measures must be taken in the whole process of loading, unloading and transportation of nodular cast iron manhole covers. Otherwise, it is impossible to predict whether the manhole covers will be damaged due to any reason. In the end, once the manhole covers are damaged and can not be applied, not only the manufacturer will lose the cost, but also the customers will be worried. So I'll teach you some ways to prevent damage in the whole process of loading, unloading and transportation.
1. If the electric forklift is used to load, unload and transport the nodular cast iron well cover, the protection of the fork teeth must be done well to prevent the heavy impact between the fork teeth and the galvanized flat steel on both sides of the well cover.
2. The installation clamp is selected to be fixed. Only four sets of installation clamps are selected for each plate to avoid the manhole cover. For the plate with large span, many more can be installed on the support column.
3. Fully consider the convenience of customer's project acceptance and installation, and place the signboard and steel model on the side convenient for inquiry.
4. When loading, unloading and transporting, it is not necessary to lead to loose packing, but to pile up regularly and neatly.
5. It is suggested to use polyester lifting belt for lifting and loading. However, if it is lifted with galvanized steel wire rope, it is necessary to pay attention to the maintenance of galvanized flat steel on the edge of ductile iron well cover, so as to avoid serious deformation caused by damage on both sides of the well cover.
6. The installation of galvanized flat steel and including galvanized flat steel is only in the aspect of the height width ratio of the manhole cover, which vertically divides the orientation of the plan of the manhole cover. It has high compressive strength, and the unscientific bearing force on the side will cause deformation or damage.
Therefore, in order to give full play to the excellent characteristics of nodular cast iron well cover after installation, it is necessary to ensure the whole process of its transportation and loading and unloading. Otherwise, the damaged and deformed well cover can not be installed with proper installation method, and its excellent function can not be shown.
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