As an ancient civilization with a history of thousands of years, the brilliant Chinese civilization has also created many ingenious cultural relics.
It is also relying on these cultural relics that have been handed down that we can now spy on the style of some predecessors.
In the books handed down, there are many technologies recorded, and there are exquisite porcelain, bronze and other cultural relics, which prove the development of craftsmanship and technology of various dynasties and generations.
The preserved cultural relics are naturally precious and abnormal, and it takes a lot of time and energy to restore and protect.
Therefore, we can see those exquisite cultural relics in many cultural relics museums.
However, the excavated iron cattle weighing seventy tons could only be placed in the open air, and there were no protective measures, which made people wonder.
Is it just because of its weight? In fact, it is because of these iron heavy objects, if not well protected, it will hurt these cultural relics themselves.
Lesson
A thousand years ago, outside Cangzhou City stood a delicate iron lion representing the smelting process, which stood outside the city gate, like the guardian of this city.
Known as the "Zhenhai Roar", the lion weighed more than thirty tons and became a key protected cultural relic on the mainland after the 1960s.
However, because of its age, this iron lion has been damaged to Chengdu to a certain extent, and during the Qing Dynasty, it has appeared to be lodging, resulting in certain damage to the abdomen after being lifted up later.
Because the wind and rain have been blowing, the cultural relics scientists want to protect him, so they built a pavilion on the spot, hoping to block the wind and rain, but they never expected that after this pavilion, the water on the ground evaporated slowly, but accelerated its corrosion of the iron lion.
Reluctantly, the pavilion could only be demolished, and later wanted to build a pedestal at the bottom of it to avoid being soaked by rainwater, but unexpectedly there was an accident, resulting in multiple damage to the iron lion.
In desperation, it can only be firmly supported by a steel pipe to avoid its complete collapse due to its lack.
Yellow River Iron Bull
With the lessons of the past, when facing iron products, experts will naturally be very cautious, otherwise if they are not careful, they will destroy cultural relics, but let the cultural relics lose their original value.
During the Tang Dynasty, a suspension bridge needed to be built during the Pujin Crossing of the Yellow River. As an important hub connecting the two sides of the strait and facilitating trade, this pontoon bridge naturally needs to be built perfectly.
Therefore, at that time, Tang Xuanzong ordered the demolition of the bamboo pontoon bridge at that time and replaced it with an iron cable pontoon bridge to ensure trade between the two sides of the strait.
Repairing this kind of pontoon bridge naturally requires exquisite iron smelting technology, and after summoning skilled craftsmen, the first task is to cast the piers of the pontoon bridge.
At that time, eight cattle bridge piers weighing more than 70 tons were built, and the cattle themselves represented the solidity, and these piers represented the highest technology of iron smelting technology at that time.
Now it seems that at that time, how such a behemoth was forged has become a mystery that has not yet been fully solved.
The ancients were always able to show their wisdom to future generations, repaired pontoon bridges, and after use, facilitated cross-strait exchanges and trade, and ensured important tasks including the transportation of salt and other items.
This pontoon bridge has been in use for a hundred years, and the piers are like cattle, stationed on both sides of the river. It was not until the Yellow River moved east that the pontoon bridge was abandoned.
Unable to protect
Exquisite craftsmanship makes these iron cattle look lifelike, which undoubtedly represents the iron smelting technology of the Tang Dynasty at that time, which has reached a very superb point.
If you don't really see it with your own eyes, who can believe that in the Tang Dynasty a thousand years ago, the wise ancients could forge such a huge thing.
But in the face of such a behemoth, cultural relics experts seem a little helpless.
After all, this kind of large-scale iron products, if the protection is not good, there will be a regrettable result like "Zhenhai Roar".
Just such a beautiful behemoth, which can only be placed in the open air, continues to accept the test of wind and rain, naturally makes many people who do not understand the inside situation do not understand.
Iron products after a long period of wind and sun, rain soaking, it is easy to appear all kinds of corrosion, which is why they wanted to build a pavilion above the "Zhenhai Roar".
However, the results of the "Zhenhai Roar" are already known, because it hinders the evaporation of water, but it further accelerates the corrosion of iron products.
And because these iron products have been standing for more than a thousand years, if they are easily moved, it is likely to cause damage to these iron cattle like the lessons of the past.
Although these cultural relics represent the highest level of casting technology, how to protect them has become a problem that needs to be solved urgently.
No one wants to see these cultural relics sealed, but also do not want the cultural relics to be damaged, and now there are few times when such heavy iron products are cast, so how to protect them is an important problem waiting to be solved.
Cangzhou's "Zhenhai Roar" can only rely on red steel pipes to support it because of its damaged limbs, and from the appearance alone, it has lost its original meaning.
In order to avoid the regret of the Cangzhou iron lion to appear again, in the current limited protection means, cultural relics scientists can only place these lions in the open air to avoid secondary injuries and cause permanent damage to cultural relics.
epilogue
The existing cultural relics on the mainland are only the tip of the iceberg compared to the brilliant ancient civilizations, and there are still many cultural relics that have not yet been excavated.
But in the same way, these precious cultural relics themselves have a long history, and in the process of excavation, it is natural to require all archaeologists to be careful and careful to avoid damage to cultural relics.
It is only in the face of such a huge and very special cultural relics that the raw materials are very special, how to protect the cultural relics is no longer infringed, but has become a problem.
The iron lion of Cangzhou, because of the damage caused to itself, can no longer show the style of the past, and now placed outside the city of Cangzhou is a later reproduction of an iron lion.
The original good city coordinates, the representative of the city, because of improper protection, has become a permanent regret. Of course, cultural relics scientists are motivated by the psychology of protecting cultural relics, but no one expected that they would cause huge damage to cultural relics.
At present, the Yellow River Iron Bull is still well preserved and has not been damaged, but how to protect it in the future needs further discussion. It is only at present that for this precious and exquisite Yellow River Iron Bull, no measures should be taken against it, but it is the best protection for it.