Well covers have become city cards. It starts from solving practical details, becomes an art because of exquisite workmanship, and finally becomes a special culture. In almost every city in Japan, you can see colorful sewers with animals, scenery, historical stories or urban characteristics, full of design sense. So what does the pattern on the manhole cover mean?

Well covers not only have the responsibility to cover the sewers on urban roads, but also give it more meaningful responsibility! We can see the shadow of the pattern in many places. I believe that when the pattern first appeared on different objects, it may not only be used for viewing, but now we are given more functions. Xiaobian believes that many people will pay attention to its model because it has greater uses.

The surface of the well cover usually has a unique pattern. Its main purpose is to increase friction and prevent people from slipping due to rain, snow and ice. Therefore, many manufacturers have designed various patterns on the surface in order to prevent slip. We can also make patterns according to customers’ needs.

In addition, you can make different marks on it, such as manufacturer, contact information, subordinate units, etc. In some places, you will also make some art manhole covers, which should be determined according to the harsh use environment, such as making posters on the surface of the community.

The above article is about the meaning of the pattern on the manhole cover. Next, let’s learn how to deal with it after it is worn.

The repair of well cover mostly adopts mold repair mold, which is a new high-tech equipment with surface wear and processing defects. The principle is to carry out non thermal surfacing on the workpiece by using the principle of high frequency electric spark discharge. The metal mold can be repaired with surface defects and wear, and the heat affected zone is small. After the mold repair treatment, it will not deform, anneal, stress concentration or crack. It can also carry out surface strengthening treatment to realize the wear resistance and heat resistance of the mold.

It is our ground and underground entrance and exit, and the underground entrance of many underground pipelines and power pipelines is also separated, which can make our life better. During normal use, correct maintenance, i.e. cleaning, is required to ensure quality.

Therefore, our staff should remember that after using for a period of time, we should timely check the well cover products, including whether some of its screws are loose, whether the surface is covered by thick fog and whether the surface is seriously corroded. If serious damage is found, it shall be cleaned in time. If it is too serious to be used, it shall be replaced in time, so as not to cause loopholes in our use and lead to risks.