1.What are the basic requirements for storage sites for cold-rolled coils?
The site must be an indoor warehouse, ensuring the floor is flat, sturdy, and has sufficient load-bearing capacity (typically requiring a load-bearing capacity of over 5 tons per square meter). The warehouse must have good rain and moisture protection facilities, avoid open-air storage, and maintain good ventilation and dryness to prevent dust and harmful gases from entering.
2.How to properly arrange cold-rolled coils to prevent deformation and damage?
Cold-rolled coils must be stored using dedicated vertical or horizontal saddles and must not be stacked directly on the ground. Sufficient spacing should be maintained between coils to facilitate hoisting and inspection. If multiple layers are stacked (generally no more than 2-3 layers), the lower saddle must be secure, and dedicated rubber or wooden pads should be placed between layers to prevent damage or collapse of the coil edges due to concentrated pressure.
3.How to protect cold-rolled coils from rust when storing them inland?
Rust prevention is crucial. After warehousing, the original rust-preventive packaging should be kept intact; avoid unpacking unless absolutely necessary. If the packaging is damaged, immediately inspect it, apply rust-preventive oil, and rewrap it with vapor phase rust-preventive paper. The relative humidity in the warehouse should be controlled between 40% and 60%, and drastic temperature fluctuations should be avoided to prevent condensation. Regularly inspect the ends and inner rings of the rolls; any rust spots found must be treated promptly and recorded.
4.What checks need to be performed regularly during storage?
A regular inspection system needs to be established. Key areas to check include: ① Packaging for damage or dampness; ② Roll material ends for rust, dents, or deformation; ③ Saddle support for sagging or tilting; ④ Warehouse temperature and humidity records; ⑤ Fire safety facilities for proper functioning. A comprehensive inspection is recommended every 15 days, increasing to once a week during rainy seasons or periods of high humidity.
5.What are the special requirements for handling and warehouse management when storing goods inland?
Specialized lifting tools (such as C-hooks and nylon slings) must be used for handling. Direct contact between steel wire ropes and the roll material is strictly prohibited to prevent scratches. Strictly adhere to the "first-in, first-out" principle and control inventory cycles (generally recommended not to exceed 6 months). Handle with care during entry and exit from the warehouse, avoiding impacts. The ledger must clearly record the roll number, specifications, entry date, and inspection status for easy traceability and management.