industry news, news 14/09/2026 1
Zig zag wire stored under uncontrolled conditions often develops gradual surface oxidation that alters its surface texture, mechanical grip, and long-term performance before it even reaches the installation site. Light exposure, fluctuating humidity, and direct contact with oxygen in the air are the main driving forces behind this unwanted degradation. A well-designed light-proof sealed storage system with targeted anti-oxidation measures can preserve the original surface condition and mechanical properties of the wire for extended periods, eliminating the need for extra pre-treatment work before deployment.
Pre-storage surface and environment inspection
Before any zig zag wire is moved into the designated storage area, every coil must go through a full surface check to confirm there are no residual contaminants, moisture spots, or unprocessed oxidation traces left from previous handling. Any unit showing even minor signs of surface contamination is isolated for dedicated cleaning and drying, rather than being placed directly into the main storage stack.
The storage space itself is inspected to rule out direct sunlight exposure, nearby heat sources, or areas where temperature and humidity fluctuate sharply with outdoor weather. All ventilation openings are adjusted to maintain stable ambient conditions, and no corrosive or chemically reactive materials are allowed to be stored in the same enclosed area. This baseline environment setup forms the foundation for all subsequent anti-oxidation protection measures.
Light-proof sealing process for individual units
Each prepared zig zag wire coil is wrapped with a full layer of light-blocking barrier material that completely blocks all visible and ultraviolet light from reaching the wire surface. This prevents light-induced surface chemical reactions that can accelerate oxidation even under relatively stable humidity levels. The wrapping is applied evenly across the entire coil, with no gaps, pinholes, or uncovered sections that could leave any part of the metal surface exposed.
After the light-proof layer is fully sealed, a second air-isolating layer is applied around the entire assembly to create a continuous sealed boundary. The residual air trapped inside the wrapping is gently displaced with dry, inert gas to reduce the oxygen concentration inside the package to a very low level. This double-layer sealing process ensures that both light exposure and direct oxygen contact are effectively restricted for the full duration of storage.
Stacking and long-term condition monitoring
All individually sealed zig zag wire units are placed on raised, moisture-isolating racks rather than directly on the floor, to prevent moisture seepage from the ground from affecting the bottom of the packages. The stacking arrangement leaves enough space between different rows to allow air circulation around every carton, avoiding localized temperature and humidity buildup in tightly packed corners.
Regular periodic checks are carried out to record ambient temperature, relative humidity, and the integrity of the sealed packaging. Any package that shows signs of seal breakage, condensation, or physical damage is immediately removed from the main storage area for reprocessing and resealing. No unit is allowed to remain in long-term storage once its sealed barrier has been compromised, to prevent hidden oxidation from developing unnoticed inside the package.
Controlled retrieval and post-storage handling
When a zig zag wire unit is taken out from the light-proof sealed storage for use, the unpacking process is carried out in a low-humidity, shaded area away from direct sunlight. The wire is not exposed to open air any longer than necessary before it moves to the next stage of processing or installation. If any coils are left unused after partial unpacking, they are re-sealed immediately with the same light-proof and air-isolating protection measures, instead of being left out in the open environment. This final step ensures that the anti-oxidation protection built during storage remains effective right up to the moment the wire is put into actual service.