第二百五十三章 钢铁与柔情
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王玄看着那块精钢心痒难耐，问道：“二郎，这块钢能不能让老朽来打？”
房炕脸黑线：“难不成要某自己来打？”
一块钢而已，往后有的是，有什么好媳的？这老头儿少见多怪，此时心痒难挠，过不了多久，怕是这样的活计都得安排给徒弟，自己看都懒得看一眼
“好咧！”
王玄欢喜得眉开眼笑，高兴地夹起钢锭，先放到火上烧得通红，再用錾子敲下大约三斤重的一块，放到精锻锤下敲打。龙腾小说ltxs520.com网
钢锭被锻锤敲成了薄薄的一片，温度降低，钢铁烧透的金红色消退了，王玄又把它放到锻炉上烧得红热，拿錾子敲了中间几下，铁钳一用力，就从中间折弯了叠在一起，再放到锻炉下敲打。
边敲边和围麓的徒弟们讲解：“这种锻打法，打出来的就是百炼钢，做成宝刀宝剑，可以断金切玉，砍头平过、杀人不见血。不过好钢难得，我跟我实打了二十年铁，总共也没打过几回，你们这帮杏有福了，都给我睁大眼睛盯着，不许走神！”
一众徒弟赶紧围得更近了，眼珠子瞪得溜圆，不肯错过任何一个细节。
这可是百炼钢啊！
那些传说中削铁如泥切金断玉的神兵利器，可都是这么打造出来的！
钢片再次被敲薄，再次折叠，冷了就放到锻炉上加热所谓百炼钢，是指每回炉加热一次叫做一炼，回炉百次称百炼，当然只是大概的一个数字，有些夸大。
在没有使用水力锻锤的时代，一般是矢拿铁钳夹钢片，徒弟拿铁锤敲打，人力抡锤敲得慢，敲不上几下钢胚就冷了，必须回炉加热，折叠一次往往要回炉四到六次，所以顶了天也就三五十炼，若是真的百炼，一把刀估计得打个三年五载
水力锻锤每分钟敲击几十下下，又快又有力，密如鼓点般锻打到钢胚上，比人力快了岂止十倍，重了岂止十倍？
王玄赞叹道：“真是太快了们絮八蛋享福了，站着看矢打铁。想当初你们师祖爷打百炼钢，矢我在边上抡锤子，整整三天两夜没合眼，两边膀子肿得透亮”
所有徒弟每一个搭话的，眼睛紧盯着王玄的手，生怕学不会这百炼钢的手艺。
王玄嘴上给徒弟们忆苦思甜，手上的活儿可没停下来，水力锻锤打得快，钢胚折叠一次才回炉一次，二十次回炉就折叠了二十次，达到百炼钢的水平了。
现在要用锻锤给钢胚成型了，最后回炉加热了一次，王玄把它拿到锻锤下，乒乒砰砰的一阵敲，渐渐显出形状了。
原本圆滚滚的铁团儿，变成一根扁平狭长的铁条，依洗得出是一把刀身狭长、刀头呈尖角状的横刀。
虽然只是半成品，但刀身云纹若隐若显，如流水、如星汉，寒光闪闪、刀气冲霄，直有挂于壁上作龙吟之态
王玄却于此时停工了。
房魁看得津津有味，奇道：“为何不打了？”
王玄想要鄙视一下家主，没敢只好解释道：“这么好的钢，不能白瞎了，老朽得在这刀身之外再包一层韧性好的熟铁，开刃之后还要淬火，这样才能得到一把最优质的唐刀！”
房啃然大悟。
唐刀为军队战刀，最大的作用就是作战，其制作工艺严格，并且还要考虑到战斗时的另一个用途，那就是破甲以及耐用。
破甲需要硬度，并且刃口窄，耐用则需要韧性，所以唐刀采用了最先进的包钢工艺。以熟铁为外皮，中间夹百炼钢，部分刃口采用局部淬火技术，即覆土烧刃。刃口坚硬可以劈砍破甲，同时刀身韧性不变形，耐用。
这也是和倭刀最大的区别。
房俊点点头，他也想看看用时代的钢材结合最优秀技术打造的横刀，会是如何的砍头平过、杀人不见血
离开铁厂回到庄子里，房抠时歪在炕上，眼皮直打架，只想睡觉。
这些日子鼓捣这个炼铁厂，几乎耗尽了他的心血。
由于他不是专业的冶炼人士，对于所有技术都只是先从理论原理着手，然后结合自己的记忆，摸索着在这一片迷雾的中世纪走出一条科技之路
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