8090

【期股联动】燃油主力暴跌超7%！美伊停火曙光重挫油市，化工板块集体崩塌_我的网站

A |     

    A number of tinned iron armor plates excavated from the Jizhong site Photo: Courtesy of the Shaoxing Institute of Cultural Relics and ArchaeologyArchaeologists at the Jizhong ruins site in Shaoxing, East China's Zhejiang Province, recently unearthed a large number of tinned iron armor plates and semi-finished pieces dating to the Wu period of the Three Kingdoms (222-280), according to the Shaoxing Institute of Cultural Relics and Archaeology. These discoveries represent the earliest known tinned iron artifacts in China to date, as well as the earliest tinned iron production remains found anywhere in the world, proving that an organized, systematic craft industry for tin-plated ironwork existed at that time.
While China has a long history of making tinned bronze and tinware, there has long been a lack of reliable historical records or physical evidence to prove early local production of tinned iron artifacts. The newly discovered armor plates can fill this gap, demonstrating that, by no later than the Wu period, local craftspeople in Zhejiang Province had mastered the art of tin-plating iron surfaces. This reflects the region's advanced metallurgical skills at that time, Ge Shuaikun, a researcher at the Shaoxing Institute of Cultural Relics and Archaeology, told the Global Times on Tuesday.
Over the last three years, archaeologists working at the Jizhong ruins site have excavated hundreds of tinned iron armor plates from ancient wells and ash pits. A preliminary investigation confirmed that the surfaces of these plates contain high levels of tin. Subsequent laboratory analyses were conducted in collaboration with the Shaoxing's institute and the Institute for Cultural Heritage and History of Science & Technology at the University of Science and Technology Beijing with methods such as Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM-EDS), X-ray Diffraction (XRD), and Micro-CT to deeply examine the samples' materials, structures, and technological traces.
    Photo: Courtesy of the Shaoxing Institute of Cultural Relics and ArchaeologyAccording to Ge, tin is a non-toxic metal with a low melting point, excellent corrosion resistance, and a silvery sheen. Tin plating effectively prevents rust, making iron armor far more durable and indeed, even after being buried for 1,700 years, many of these tinned plates retain their silvery metallic shine.
Research shows that the craftspeople immersed iron armor plates in molten tin, thus ensuring complete coverage of the surface with a continuous tinned layer. This coating isolated the iron from exposure to air and moisture, dramatically boosting corrosion resistance. Many of the excavated tinned armor pieces still show a clear, bright silver-white finish.
One major reason for tin-plating the armor was to prevent rust. At the same time, the silvery white shine of tinned iron offered a more striking, beautiful appearance, standing out from the typical dark iron armor of the era. This visual distinction may have marked these pieces as a higher-grade military asset, according to an article from the University of Science and Technology Beijing's official website.
The article said that in earlier eras, from the pre-Qin to Han dynasties, tin was widely used as a surface coating on bronzeware and ceramics. Researchers believe the tin-plating of iron armor discovered at the Jizhong ruins site during the Wu period of Three Kingdoms built upon this local tin-coating tradition, representing an adaptation of those techniques across different materials. The process likely benefited from technological exchange among various specialized workshops at the site, including those making bronze castings, iron weapons, and other metallurgical products.
。    08月26日09点50分，燃油主力合约盘中跌幅超7%，当前报价3629元/吨。（更新时间：08月26日09点50分）行情涨跌解读美伊停火协议现曙光美伊停火协议现曙光；据新华社报道，伊朗外交部副部长加里巴巴迪表示，根据伊朗与阿曼就霍尔木兹海峡航线新达成的谅解，伊朗与阿曼之间的谅解并不意味着立即开放霍尔木兹海峡，上述通行安排为临时措施，两国后续将在30至60天内就划设一条新的永久航线展开谈判。此外，美国国务卿鲁比奥据悉于近日告知多位外...。

Current article:http://www.qiniaohongfangfoguisenzhai.cyou/news/20260826_18671.xls

Published on:10:08:42