We all know that the lamppost is to prevent rusting of the lamp post by galvanizing and spraying two processes. The galvanizing process is the most important of the two processes.
At present, some light rod manufacturers have adjusted the anti rust process to control the cost. The galvanizing link has been cancelled. The lamp post after the spray can not see whether the wool rod is galvanized or not, so this method can confuse many people. Let's first understand briefly the role and importance of zinc plating for lamp posts.
The road lamp rod must be removed by the sulfuric acid process before the galvanizing, and the completely non rust road lamp rod is soaked in the high temperature galvanizing pool. After a certain temperature and time, the hot-dip galvanizing treatment will be completed. From here we can see that the process of removing rust is very important. If the rust point of the lamppost itself is not completely removed, the zinc plating will not help, because the rust points covered under the zinc layer will slowly corrode until the galvanized layer is opened. Rather than galvanizing the key, we should say rust removal is the key. Well, we should all have a clear understanding of that. That's right, that is, the street lamp without galvanizing is absolutely useless. Say that this kind of street lamp can not be used a little exaggerated, if not afraid of it is not as good as it is not as well, the black rod directly spray in a short time no reaction, but not a year to ensure that the whole lamp rod will appear irregular blasting phenomenon, and more and more serious, until the lamp is full of white a piece of black yellow. The reason is very simple. Without galvanizing, the lamppost itself has oil and rust, which can be concealed but not eliminated. This time is long and rust will naturally corrode. As long as the sprayed plastic layer explode, it will accelerate the expansion of the rust point of the lamppost.
The identification of the road lamp post is not galvanized after a simple, find an inconspicuous place with a blunt blunt a few softly, only to remove the plastic layer, if the color is silver then there is no problem, if it is black then direct return, resolutely do not use. It's better to buy more money than to buy anything better than to buy cheap ones. Good quality can be used and poor quality white money is thrown away. Do you think so?