Smelting pig iron first and then steelmaking. Pig iron is the raw material for steelmaking. The appearance of steelmaking is an epoch-making event. In addition, copper smelting technology is also a great invention of China.
In the development of ancient metallurgical technology in China, bellows played an extremely important role. It is the earliest blasting equipment in the world invented by our country.
Ou Yezi was a Vietnamese in the Spring and Autumn Period, a master of metallurgy at that time, and a famous sword maker in the history of China. The story of "The King of Chu sees the sword" is recorded in Yuejueshu, which gives us a chance to see the birth process of "Longyuan" sword.
King Chu ordered Xiang Jian's family to go to Vietnam to find Ou Yezi and ask him to make a sword. So Ou Yezi traveled all over the famous mountains and rivers in the south of the Yangtze River, looking for places where he could find iron eagle, cold spring and akashi. Only when you have all three things can you cast a sword.
Finally, Ou Yezi came to the side of Xiqin Mountain in Longquan, and found that there were seven wells under the 2000-year-old pine tree, which were arranged like Beidou, clear as a mirror, and cold into the bone marrow. It was really a fine cold spring, so he dug a pool to store water, that is, the sword pool.
Ou Yezi also collected the pure iron eagle at the foot of Cishan Mountain, which was used to make iron and cast swords, and was refined with this pool water to cast swords. But it is impossible to grind a sword without a good bright stone.
Ou Yezi climbed mountains and waded, and finally found a bright stone pit on a mountain near Xiqin. I found a little cold and gloomy in the pit, and I knew there must be a foreign body in it. So I burned incense and bathed for three days, then jumped into the hole, took out a solid and bright stone and slowly sharpened my sword with the water here.
After two years, three swords were finally forged: the first one was called "Longyuan"; The second one is called "taia"; The third kind is called "work cloth".
These swords bend and turn around the waist, just like a belt. As soon as I let go, my body bounced off and my pen straightened. If you throw the handkerchief into the air and slowly fall from the front of the sword, it will be split in two. These swords are so sharp because they are made of iron eagle, tempered with this pool of water and polished with this rock.
When the king of Chu saw that the sword was overjoyed, he named this treasure land "Jianchi Lake". Later, it was renamed "Longquan" in the Tang Dynasty, and it has been called today.
King Chu once led the sword of Tya to break the Jin army. At that time, Jin sent troops to attack Chu and besieged the capital of Chu for three years, in order to seize the treasure of Chu's town, "Tai 'ajian". When the capital of Chu was about to break, the king of Chu drew his sword to meet the enemy himself. Suddenly, the shock wave blaster, flying sand and stones, 8 jin j completely annihilated, waving flags.
Although the above records contain legendary elements, according to modern archaeological excavations, China's metallurgical technology was really high in the Spring and Autumn Period, reaching the advanced level in the world at that time.
The sword that Ou Yezi gave to Gou Jian, the King of Yue, was buried underground for thousands of years. After excavation, it was found to be bright, stainless and very sharp. Through modern scientific research, these bronze weapons have been well electroplated, which shows that China is the first country to invent metal electroplating in the world.
technology of metals
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