绿灯侠

China's earliest tinned iron armor found in Zhejiang: 1,700-year-old anti-rust tech revealed_我的网站

小鱼儿与花无缺

一 | Sophie 编译每年都有数千辆自行车被盗，其中很大一部分再也找不回来了。

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 Archaeology

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.
。 Patrick Reynolds价值8000纽币的电动自行车就是其中之一。三周前，他的车在奥克兰的Britomart被偷了。

二 | Advertise with us 监控录像显示小偷用角磨机撬开了它。Reynolds向警方寻求帮助，但尽管提供了清晰的照片，以及被盗自行车的实时GPS定位，警方表示他们没有足够的“证据”来推进调查。今天早上，Reynolds在接受Breakfast节目采访时表示，他对这种情况感到沮丧，尤其是因为他在自行车上安装了防盗技术来防止这种情况发生。 “奥克兰市中心盗窃犯罪猖獗，有监控录像，但仍然需要人们履行自己的职责。” 他说他的自行车花了大约5000美元，但现在无法再进口同款自行车到新西兰。

三 | “这似乎是一种普遍现象，我觉得警察对自行车盗窃并不重视。我有一辆汽车，但我更喜欢骑自行车，因为更快。

四 | ” Reynolds说，他在网上提交的盗窃报告没有得到任何回应，于是他亲自去了警察局。

五 | 两天后，他收到一封电子邮件，称他提供的信息“太陈旧”。 “他们可能是对的，但问题是，信息陈旧是因为他们一开始就没有采取行动。” 警方在给Breakfast的一份声明中说，GPS提供的信息不足以发出搜查令。 “我们也获得了一名嫌疑人的监控录像，但警方无法确定此人的身份。” “我们理解报案人的感受，但是警方需要有一定程度的足够证据才能进行调查，而在这种情况下，没有达到这一标准。

六 | ” Reynolds在Breakfast节目上说，如果有人认出了监控中的男子，请立即联系警方。相关阅读：奥克兰一购物中心内珠宝店被暴力打劫，一名20岁男子逃离现场后被逮捕奥克兰夜间发生暴力入室抢劫案，4名持枪罪犯逃窜100公里后在北地被捕太猖獗！四名劫匪持斧头抢劫奥克兰加油站，员工差点爆头而亡四名蒙面罪犯手持锤子袭击奥克兰加油站店员，行业组织恳求政府紧急行动奥克兰高峰时段发生激烈追逐：逃逸车辆逆行险象环生，两人被捕奥克兰北岸大超市清晨被抢：警方出动直升机和警犬队追捕，4人被拘 700棵蓝莓树被偷摘，价值5万纽币的青铜雕塑被破坏奥克兰发生激烈群殴事件，武装警察包围了一栋房屋，一男子被捕一名男子遭恶性袭击，被抛下码头并按在水下，警方急寻目击者奥克兰新年夜枪杀案：两人中枪一人身亡，凶杀案调查已展开奥克兰Avondale发生大火，80名消防员和21辆消防车参与灭火注：本文为编译/原创，欢迎转发分享；但严禁复制等未经授权的非法使用。违反上述声明者，本网将追究其相关法律责任。使用授权请联系[email protected]。 chineseherald.co.nz All Rights Reserved 版权所有 (责编：Sophie) 相关内容奥克兰中区夜间发生电动滑板车骑行事故，一男子死亡夏天就这么过去了？1月底天气多变，2月初气温将陡降 24小时内5人死于道路交通事故，警方发出紧急安全警告抗议者涌向奥克兰这一海军基地，对政府向红海派遣国防人员表示不满渔业官员警告买家：这些龙虾和鲍鱼不要买！奥克兰一购物中心内珠宝店被暴力打劫，一名20岁男子逃离现场后被逮捕 AT去年刚建的人行横道被拆除，奥克兰纳税人的钱就这么糟践？！总理轻微改组内阁，David Seymour将负责管理一项备受争议的法案。