已是丑时，徐尔路的屋里仍亮着烛火。
他和一老者对面而坐，神情兴奋地讨论着什么，两人俱是毫无倦意。
他们面前的桌上正摆着今天苏承羽给徐尔路讲课的笔记。
待所有笔记内容复习完毕，那老者仍意犹未尽，“这‘元素周期表’真是玄之又玄，初看匪夷所思，细想却暗合万物构成之本。陈州王殿下竟懂如此深奥之术，愚兄钦佩至极！”
徐尔路点头附和，“虽然陈州王殿下说他是从别处学来的，但以弟所知，普天下并无此等学说。”他向西而望，“家祖一直认为欧罗巴人极擅工学、格致，力主师以西学。但眼下看来，大明藏龙卧虎，在这方面甚至远超西人。”
老者看着桌上的笔记，犹豫道：“愚兄欲将殿下所授之术整理成籍，以教大明子民，却不知是否妥当……”
十多天后，泥范已基本熏干。苏承羽吩咐工匠们开始烧范。
从烧范到浇铸铁水等一系列工序都是工匠们极为谙熟的。只一天工夫，便有一副铸炮铁范浇铸完成。
但由于加速干燥的缘故，另两副泥范却在浇铸过程中产生崩裂而报废了。
徐尔路立刻指挥众人修正、打磨铁范，至当晚，一切准备工作便已基本就绪。
次日，所有制炮工匠们齐聚一堂，开始首次浇铸。
苏承羽根据记忆中铁模铸造的流程，先让人用木炭将铁范烧至发红，以防止表层的铜液凝固过快而影响浇铸。
随后，在徐尔路亲自指挥之下，液态青铜被工匠缓慢而准确地倒入铁范的浇铸口。
浇铸很快完成。又半个时辰之后炮身便已凝实，待工匠拆开铁范，炮场内顿时一片欢声雷动。
整个炮身光洁平整，没有任何瑕疵，简直比以前打磨之后的火炮都漂亮。
工匠们又围上来进行收尾工作。徐尔路则望着平整的炮膛啧啧称奇。
要知道，若用泥范铸炮法，到此时才算完成了一半，光打磨炮膛就需要十名工匠忙活十多天的。而此时，眼前的火炮便算是铸成了！
等炮身完全冷却，安东尼拿了面小镜子，将阳光反射进炮管里。光线笔直照到炮膛底部，说明炮身没有任何弯曲走形。
这边苏承羽吩咐工匠们将铁范重新用铁箍扎紧，上炭火加热，准备进行下一次浇铸。请求出错，状态码:0内容:请求出错，状态码:502内容:<!DOCTYPE html>
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<div class="mt-3">2026-07-08 02:07:13 UTC</div>
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