第171章 这样的高炉,用不起啊(2 / 2)

“如此大的高炉,以我大明目前的铁矿开采量,还不配用。”

“不错,用不起啊用不起。”单安仁道。

“当时儿臣也问了这个问题,炼铁用的高炉能不能改小。”朱标道,“秦先生说改小可以,不过不能太小,炉内空间太小的话,练出来的铁不纯。”

“也就是说高炉炼铁,是越大越好。而且一旦点火熔炼了,就不能停下来,因为一旦停下来,耗费的成本太大了。”

“还要每天日夜不停的炼铁?”二人惊呆,他们不敢想象,二十四丈的高炉炼铁,每天日夜不停,一年下来熔炼出来的铁量到底是个什么样的数字。

此前他们都觉得大明有二百多个铁矿,完全够用,甚至还有盈余。

但从现在看来,如果用二十四丈的高炉炼的话,估计二百铁矿也支撑不了多长时间。

“秦先生说没说,最小的高炉需要多大?”朱元璋问道。

“五丈高,再小就不行了。”朱标道。

“五丈的高炉,对我们来说也是庞然大物啊!无论是建造,还是加热都是一件困难的事情。”单安仁感叹道。

“不管有多大的困难,我们都要克服,一切按照秦先生教的更先进的高炉标准去做。”朱元璋道,“毕竟只要是秦先生教的,都是神一般的知识,从未出过差错。”

“此外,秦先生说……”朱标又说道,“生铁因为含碳量太高了,因此太脆。生铁从高炉出来之后,必须马上送到炼钢厂炼钢。”

“所谓的百炼成钢,就是古时候的工匠,把生铁里面的碳敲打出来的过程。”

“钢比铁更坚硬,用到的地方更多,含碳量太高的生铁用途太小了。”

“钢是比铁更坚硬的金属,如果能把碳控制在0.6%到2.0%之间就可以用来制造枪炮了,这样的钢材,就算火药的威力再大,也不会炸膛。”朱标道向二人普及知识,

“你们没有学过秦先生的课程,可能不懂百分比,0.6%就是一千份当中只有六份,2.0%就是一百份中只有两份。”

“至于炼钢的技术,脱碳的技术儿臣都记载本子上了。儿臣当时也没有听太懂,术业有专攻,就交给军器局的巧匠们去研究吧。”

“好!”单安仁道。

“你们把炼钢的高炉,就建造在炼铁高炉的旁边,这样转运起来方便。”朱元璋道。

“臣遵旨!”单安仁说完,这才退了下去。

“呼!”看到单安仁走后,朱元璋长长的出了一口气,仿佛刚刚从巨大的惊喜中回过神来,“咱今天,简直是太高兴了!”

“如此厉害的火器,再加上炼铁炼钢技术,完全足以改变我大明的国运!”

“是彻彻底底的大改变!”

“父皇说的对极了。”朱标也有些激动的道,“因此,儿臣们在听秦先生讲这堂课的时候,是丝毫不敢分心,不但记录下来了他画的所有图形,就连他说的每一个字都生怕听漏了。”

“你做的对!”朱元璋道,“这些技艺对我大明来说,实在是太重要了。”

“以前讲的什么大明疆域为雄鸡图形,占领瀛洲仙岛能改变国运等等说法,都是虚无缥缈。而这一次,才是实实在在的改变我大明国运的工艺。”朱元璋道,“钢铁和工艺改变国运,远远比神异改变国运,靠谱得多。”

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