The mystery of the Sword King. In 1965, when the archaeological team excavated the tomb of Wangshan No. 1 in Jingzhou City, Hubei Province, they accidentally found a long sword covered with mud. The long sword is well preserved, the key is 55.7 cm long. When unearthed, the cold light flickered, and the blade was still sharp. The key body is covered with a black diamond pattern and is beautifully decorated. The smallest part of the engraving is only 0.1 mm, with two rows of bird prints spaced apart.
The key screen spacing is black, and the sides of the interval are patterned, inlaid with blue glass and turquoise respectively. This major archaeological discovery immediately caused a national sensation. But with the unearthed swords, people not only have more attention. This flat valley was built underground and buried for more than 2,000 years. Why hasn't it rusted yet? Why is it still so cold and so sharp? How did the bright diamond-shaped dark lines come about? What precision techniques did the ancients use to help the 11 concentric circles on the handle of the knife that are only 0.2 mm apart? Judging from the regular and concave black diamond-shaped pattern on the sword, this black pattern is consciously processed when the knife is placed. In 1978, with the approval of the state, Yue Wang Gou Jianjian was specially assigned to the Electrostatic Accelerator Laboratory of Fudan University in Shanghai to conduct non-vacuum analysis of non-destructive proton X fluorescence on board. The composition of the blade was found to be 80.3% copper, 0.4% interest rate and 0.4% iron. In the composition analysis of the black diamond pattern and the black interval, in addition to the slight increase in iron absorption, there are also different levels of flow.
In 1978, scholars performed X-ray diffraction analysis of the black ornamentation on the sword of the Yue King. In addition to copper-tin alloys, black ornaments were found to contain copper sulfide and ferrous-tin alloys. After many experiments, scientists deduced that the black part of the surface between the Moon King and the Goku was formed by sulfur powder treatment. Diamond pattern. Further research found that the reason why the Yue Wang Gou Jian sword had been stainless for thousands of years was because the sword was plated with a layer of cold metal. As we all know, each is a rare metal that is extremely resistant to corrosion. The content of earth rocks is very low, and it is very difficult to extract. In addition, chromium is a high-temperature resistant metal with a melting point of about 4000 degrees Celsius. Who would have thought that the scientific inventions of the 1950s would have occurred more than 200 YEARS BC. Where did the ancients' precise sword casting technology come from? The mystery in the sword of the Yue King became deeper and deeper. Perhaps we will have to wait for further research to find out.