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第九十八章 铜炮和铁炮(1 / 2)

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与邓范等人定下分工和规矩后,陈雨又来到了顾府,找到了公沙·德西劳等人。

陆若汉主动问:“将军阁下,是要开始我们的工作吗?”

陈雨摆摆手:“不急在这一天两天,你们刚来,先适应适应这里的生活环境。而且我原来只有打造火铳的作坊,现在铸炮需要更大的地方,加上搜罗更多的工匠,筹备这件事需要一些时间。今天来,是想先和你们谈谈,了解一下铸造大炮的细节和流程,做到心中有数、有的放矢。”

陆若汉说:“这个事情,就得问德西劳先生了,他曾经是澳门制炮厂的首席炮师,是这个行业的专家。”

陈雨点点头:“那就请德西劳先生给我普及一下铸炮的知识吧。”术业有专攻,他虽然来自现代,但是对大炮的铸造完全是个门外汉,哪怕是相对简陋的前装滑膛炮。

通过陆若汉的翻译,公沙·德西劳说:“很愿意为您效劳,阁下。简单来说,你们所说的红夷大炮,就是欧洲舰炮的仿制品,一般是十二磅到十八磅左右,通常有铁质和铜质两种。在磅数相对固定的前提下,选择哪种材质是很重要的事情。这个抉择只能由您来做。”

陈雨不解地问:“铜炮和铁炮有什么区别吗?”

“在现有的冶金技术下,得到质量可靠的钢并用来铸炮是不现实的,而铁炮存在诸多缺陷,所以铜炮是更好的选择。铜的延展性要比铁好,铸造起来工艺更简单,抗拉性也好,不容易炸膛;而铁炮虽然更硬,但是也更脆,炸膛的几率更高。”

“那就选择铜炮啊,这还有什么可选的。”

德西劳摇摇头:“事情并非这么简单,阁下。据我所知,明国的铜矿并不是很多,铜的产量不高,材料的获得是一个难题。最重要的是,贵国的铜一般是用来铸钱的,用于日常的小额货币流通,属于典型的贵重金属,这样就更加增加了用铜铸炮的难度。”

陈雨拍了拍脑袋,有些想当然了,拿后世的思维来考虑这个时代的事情,自然会疏漏一些事情。铜在现代只是一种普通的金属,而在古代,因为被选为货币的铸造材料,就如同黄金一样,有了较高的附加价值,那么用全铜材料铸炮就有些奢侈了,关键是材料的获得很困难,连铜矿都是被官府直接或者间接掌控的。

他问德西劳:“那么铁呢?”相对来说,铁比铜还是更容易获得一些。

“阁下,刚才我说过了,铁炮的抗拉性要比铜差不少,这直接影响到炮的性能,这是原因之一。而且,造炮只能用生铁,不具备锻铁(中国称熟铁,也就是低碳钢)的锻造性,只能用铁水倒入入模子里铸造。用生铁铸炮,硬度是够了,但是太脆,更容易炸膛。不过,铁比铜价格低得多,用铁铸炮可以降低成本……”

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