What are the maintenance steps of Jiangmen bridge and pipeline
With the continuous development of social economy, the use of bridge in Guizhou is also increasingly extensive. As for the bridge, do the usual maintenance and protection work, which can well extend its life. Let's take a look at what protection operations there are.
1. Rust treatment
Generally, two layers of chlorosulfonated primer are used for two-part derusting of cable tray. The quality of surface derusting directly affects the service life of anti-corrosion engineering. The field derusting is generally carried out by grinder or manual derusting, and the primer shall be applied within 4 hours after surface treatment. If the treatment is not proper and new rust is found, it must be treated again.
2. Coating treatment
The coating process is divided into brush coating and roll coating. During brush or roll coating, each layer shall be repeated in a crisscross manner until uniform stop and no missing coating is found.
Construction environment requirements
The environment needs excellent ventilation, the temperature should be kept at 13 ℃ - 30 ℃, not lower than 5 ℃, and the relative humidity should be kept within 80%. Construction should not be carried out under intense sunlight. In case of rain, fog and strong wind, the construction shall not be carried out outdoors.
Source: Jiangmen bridge pipe http://www.jmyxt.cn/