Moisture and rust prevention measures for long-term storage of Wall-Penetrating Bolt?

Moisture and rust prevention measures for long-term storage of Wall-Penetrating Bolt?

Long-term storage of Wall-Penetrating Bolt should start from three aspects: "isolation moisture", "blocking rust reaction" and "regular maintenance" to avoid oxidation and deterioration of the material, the specific measures are as follows:

First of all, do a good job in storage environment control. Choose a dry and ventilated indoor warehouse, and lay moisture-proof mats (such as rubber mats, plastic film) on the ground to avoid direct contact of the screw with wet ground. Dehumidifiers or quicklime desiccants are placed in the warehouse to control the air humidity below 60%, and warehouse doors and windows should be closed during the rainy season to prevent moisture intrusion. If you need to temporarily store it in the open air, you need to build a rain shelter, with a wooden cushion at the bottom of the floor more than 30cm high, and cover it with waterproof canvas to ensure that rainwater does not penetrate and does not accumulate water.

Secondly, carry out pretreatment protection. Before storage, the dust and cement residue on the surface of the screw should be thoroughly cleaned, and the remaining rust should be removed with a wire brush; After that, apply anti-rust paint (such as alkyd anti-rust paint) or engine oil evenly to form a separation film to block the contact between air and moisture and steel; For stainless steel or galvanized screws, a plastic protective film can be applied to avoid friction from damaging the coating.

Finally, standardize stacking and regular inspection. The screws should be stacked according to specifications to avoid the deformation of the bottom layer caused by excessive stacking, and each layer is separated by wooden boards. Regular inspection every month, if the anti-rust paint is found to be peeling off and partial rust, it is necessary to re-apply the anti-rust paint in time; During the rainy season, the frequency of inspections can be increased to ensure that the storage environment is always dry and prevent moisture from causing batch rust.