第三百一十二章:火炉锻铁
最新网址:m.ltxsdz.com
这一炉铁矿石,足足烧了数个时辰,由于灌风技术的落后,那些负责用风箱向火炉内部灌风的工匠们,换了一拨又一拨,一个个累地连手都抬不起来。
说实话,让这些经验丰富的工匠们做这种活,难免有些大材小用之嫌。
毕竟按理来说,灌风这种事是不需要工匠们来做的。自有匠徒、杂役代劳,只不过今日是冶造局首次用这种方式炼铁,为了积攒经验,同时也为了减少不可预测的变故发生。因此,今日所挑选的,皆是冶造局内经验丰富的工匠们。
待等到夜深,地炉内的温度逐渐降下来了,工匠们尝试打开火炉的炉门。
当炉门打开的时候。明明火炉内的火早已熄灭,但炉内仍然不可避免地涌出一股炙热的热浪,使得地炉内的温度再一次迅速提升。
不过这是好事,这意味着这批新烧的火砖,它的耐热、隔热、保温性能的确不错。
“开工了,开工了!”
一名被提拔为工头的工匠拍着手掌,将那些横七竖八躺在地炉内歇息的工匠们叫了起来。
不得不说,刚才无休止地给火炉内部灌风,着实将这些工匠们累惨了。
但累归累,这些工匠们的情绪却高昂地很。也难怪,毕竟眼下正是验收成果的时候。
这不,早有两名工匠们冒着酷热冲入了火炉,用棍子在一片灰烬中拨寻着,将一块块黑不拉几的物体从灰烬中拨出来。
这些黑不拉几的物块,正是经过高温煅烧后所形成的熟铁(锻铁),也就是铸造铁器的铁胚。
这些铁胚质地很软,淬火后可再次塑形,因此适合用于作为锻造合格兵器的铁胚。
但其中,亦难免会参杂一些特殊的铁块。
“咦?”
这不。一名工匠拾起了一块铁胚,用布裹着在手里垫了垫,常年打铁的经验让他对这块铁胚产生了疑问。
为了验证心中的猜测,他走到一处用于照明的火鼎旁。将铁胚放在铁架子上,用一柄铁锤朝着这块铁胚狠狠敲击了几下。
“怎么了?”
听到这个动静,赵弘润与王甫不约而同地走了过去,却发现那名工匠正惊讶地望着手中的那块铁胚。
“怎么回事?”王甫皱眉问道。
只见那名工匠脸上流露着吃惊的神色,古怪说道:“局丞,这块铁胚……硬度堪比咱们的二十锻铁了。”
“什么?”
王甫闻言吃惊地睁大了眼睛。
要知道。冶造局以往将锻铁反复用锤子敲打锻造,才能获得高硬度的锻铁,而如今这名工匠却说,他们直接通过煅烧铁矿获得了高硬度的锻铁,这简直颠覆了王甫的认识。
不过赵弘润倒是不惊讶,因为他知道,用这种保温性能优秀的火炉煅烧铁矿,的确会有一些燃烧充分的铁胚越过生铁的范畴,直接形成高硬度的锻铁。
而事实上,这种高硬度的锻铁,其实就是合金,是由铁矿中的铁与其余金属融合产生的金属。
这种合金,不适合用来再次锻造,应该它已失去了再次塑形的能力,对于目前的冶造局几乎没有什么作用,但是,它却是炼钢的极好材料。
遗憾的是,那些工匠们却不清楚这回事,他们虽然惊讶于那些合金的坚硬,但心中却已将其归类于“次品”,毕竟这种无法再次塑形的锻铁,哪怕硬度达到要求,对于他们冶造局而言也没有什么作用。
好在冶造局有赵弘润。
“这些可不是失败品。”见有些工匠们在仔细检查了那块合金后露出失望之色,赵弘润笑着对他们说道:“将这些高硬度的锻铁都区分出来,妥善保管起来,日后,咱们会用得上它们的。”
听闻此言,周围那些工匠们面面相觑,想不通这位肃王殿下要这些无法再次塑形的铁块做什么。
对此,赵弘润也没有细做解释。
这些合金的出现,虽说有些意外,但亦在意料之中,毕竟,只要火炉内温度达到一定程度,并且那些矿石参杂着别的金属,有可能直接煅烧出质地粗劣的合金。
事实上这些东西,在赵弘润眼里可要比那些铁胚(熟铁)更珍贵,因为那可以用来炼钢。
钢……真是一个遥远的词啊。
摸着手中那块质地粗劣的合金,赵弘润微微叹息着。
不过,好歹已迈步第一步了。
他只能这样安慰自己。
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