第六百七十一章 双火锻造法(1 / 2)

又一日,匠人依照军令,开始热火朝天的给自己打造工具。

一开始要打造工具才发现,打铁的墩子缺,舀铁的铁埚缺,钳子缺,锤子也缺,凿子锉刀都缺。

各人只顾着给自己打,打铁共用的铁砧又大又笨重,却没人愿意打。

一大群人都挤着仅有的三五个铁砧等着用,却丝毫没人想着先把铁砧打出来的打算,铁匠队长看不下去了,吼了众人一声,让所有人都先打造铁砧,三人一个铁砧先做好再打其他,这才让众人协调好。

铁砧简单来说,就是一个打铁的墩子,只要足够结实足够平整脸盆大小就够了,制作铁砧难度不大,唯独需大量耗铁。

当又一炉铁液出炉之时,匠人们等着取铁铸砧,此时,李孟羲和关羽一块来了。

见两人来,以为又要打造什么东西,匠人队长迎了上来。

“不用,”李孟羲道,“你们忙。”

说着,便和关羽走到了铁池那里。

关羽从边上铁匠手里拿过铁埚从铁池里舀了半埚铁水,然后径自舀着铁走到一个铁砧前,把一个铁砧霸占了。

匠人们疑惑,关将军也会打铁吗?

关羽打铁的本事没有,但,把铁随便锤成个块还是能做到的。

在匠人们疑惑的围观中,关羽,一手夹钳,一手拿着小锤子哐哐一阵敲,看的出来,关羽不善锻造,发力笨拙无比。

铁匠队长再次走过来说,要是打东西,可以找他们打。

关羽摆手拒绝了铁匠们的帮助。

就如造纸术时,因为李孟羲把造纸术的底层原理弄的太明白,讲的太清楚了,关羽也听得太明白了,于是当时造纸时,关羽就忍不住连几个夜晚去煮纸浆,就为一探究竟。

锻铁来讲,和神兵利刃息息相关,关羽就更感兴趣,于是便亲自动手一试。

关羽吭哧吭哧的轮锤锤铁,李孟羲就在边上抱着手臂看着。

关羽虽说打铁不熟,可力气大啊,锤子哐哐的砸就没慢过。

依锻铁流程,生铁锻打成钢之法两种,一种是,生铁打一半脱碳直接成钢,另一种,直接往彻底了打,生铁打成熟铁之后,再从容渗碳。

两种方法,前者工序少,但成功率低,对经验要求也高,而后者虽工序多,但容易操作,成功率更高。

大多百锻钢刀,大多都是先打成熟铁,然后渗碳百锻,也就是,等于两个百轮锻打过程,工作量极其漫长。

依直接锻打脱碳成钢之法,关羽打到一半,停了下来,他抬头看向边上站着的李孟羲,疑惑问,“羲儿,你说这生铁,他是怎么把炭脱出来了的?”

李孟羲想了想道,“炭此物,遇火可燃,而燃烧需气,所以,生铁脱碳,大抵是高温之下,与气充分接触,使炭燃烧成烟跑掉,然后炭便脱掉了。”

“所以,生铁锻打脱碳之时,应多加热,使铁维持热度,越热越好,铁越热,炭烧的越厉害。”

“再有,生铁锤锻,应是往薄了往大了锤,越薄,与气接触面越大,炭燃烧便越快。”

“大抵此两者。”

关羽点了点头,生铁锻打,一要热,二要薄,原来如此。

关羽看了看自己所打的铁,打成了一坨了,且铁打太久都凉了,这是不成的。

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