Common quality problems of steel gate and hoist
1.1 deformation and corrosion of gate
In steel gate, the most common problem is corrosion. Due to the thermal properties of water conservancy and hydropower projects, the steel gate and hoist are corroded by sea water, especially for the gate that has been running for more than decades. Although the relevant maintenance and inspection have been carried out, and the anti rust and zinc spraying measures have been taken on the surface, the corrosion of the steel gate and hoist is inevitable due to the long running time. In the process of checking the steel gate atuijianwww.slms1688.comwww.kaiyejixie.com.cnpaimen.89ix.comjianchajingj.75ix.cnwww.gelidunmoju.com.cn www.fengguanjiagong.comnd hoist, there are some problems such as rust spots, rust skin stacking and rust pits. Many of the components have deep rust pits, and even holes. Deformation is also the quality problem of steel gate. Due to the deformation and corrosion of steel gate, the stress distribution of steel structure components changes, which reduces the stiffness and strength of the whole structure of steel gate, and ultimately reduces the service life of the gate.