钢铁核心:磐石的重生
笔趣阁(biquge321.com)更新快,无弹窗!
为什么不用冰水啊?冰水冷却得更快,咱们能早点修好炮!”工匠小赵疑惑地问道,他觉得用冰水能节省时间。
叶梦珠摇摇头,解释道:“不能用冰水!子铳是铁做的,受热后温度很高,突然放入冰水中,温差太大,子铳会因热胀冷缩而开裂。用常温的冷水缓慢冷却,能让子铳的温度逐渐降下来,避免开裂。你想想,子铳要是开裂了,咱们还得重新做,反而更浪费时间。”
小赵听了,不好意思地挠挠头,“原来是这样,我还是太年轻了,考虑得不周全。叶娘子,我记住了,下次一定注意!”
冷却后,工匠们将子铳放入特制的铁模具中,用千斤顶缓慢加压。“慢点儿压,盯着模具上的刻度,别矫正过度了!”叶梦珠在一旁提醒道,“现在刻度指在5,再压半格就行,到5.5就停!”
负责加压的工匠立刻放慢速度,眼睛紧盯着刻度,“叶娘子,到5.5了!”他立刻停止加压,“这样应该就矫正好了吧?”
叶梦珠走过去,用手摸了摸子铳的表面,“嗯,差不多了,取出来看看。”工匠们将子铳从模具中取出,子铳的形状已经恢复正常,没有丝毫变形。
炮身的校准更是关键。叶梦珠将精密的象限仪固定在炮身上,象限仪的指针随着炮身角度的调整而转动。“再高半度!对,就是这样,指针指在30度,这个角度能保证炮弹的射程和精度!”她一边指挥工匠调整炮架的高低,一边紧盯着指针,“你们记住,这个角度是经过计算的,太高了炮弹会飞得太远,打不到敌人;太低了炮弹会落在近处,也没用。”
接着,她又用铅垂线检查炮身是否水平——铅垂线从炮身顶端垂下,与炮身侧面的刻度线完全重合。“水平了,这样射击时炮身才不会晃动,炮弹才不会跑偏!”叶梦珠满意地说道,“好了,准备装药测试!”
“装药测试!”叶梦珠站起身,后退几步,高声下令。一名炮手立刻上前,用铜制的量勺舀出二两颗粒火药,小心地倒入炮膛,“叶娘子,火药的量没问题吧?会不会太多了?”炮手有些紧张,他怕火药太多会炸膛。
“没问题,这个量是经过测试的,既能保证射程,又不会炸膛。”叶梦珠安抚道,“你按平时的步骤来,别慌,没问题的。”炮手点点头,用通条将火药夯实,然后将一枚三斤重的实心弹推入炮膛,最后插入引信。“点火!”炮手点燃引信,快速退到安全区域。
“轰!”一声沉闷的咆哮响起,炮身因后坐力向后滑动了半尺,被预先固定的阻木挡住。炮弹呼啸着飞出,在空中划出一道弧线,精准地命中远处山坡上的标靶——一个用稻草扎成的假人被炮弹直接击穿,稻草纷飞,假人轰然倒塌。周围的工匠和士兵们立刻欢呼起来,“中了!中了!太好了!”
叶梦珠却只是点点头,冷静地说道:“再测两门,确保每一门都没问题!咱们不能只靠运气,必须保证每一门炮都能正常使用,这样才能对抗清军!”
这声炮响,如同宣告着堡垒的远程獠牙再次变得锋利,也让所有人都松了一口气——有了这些火器,他们对抗清军的底气更足了。
棱堡的斜坡下,新砍伐的巨大原木和开采的沉重石块堆积如山,形成了一座小山般的储备库。这些原木都是从附近的山林中砍伐的,选择的都是树龄超过二十年的硬木,直径大多在一尺以上,长度超过三丈,木质坚硬,不易断裂。民夫们用绳索将原木捆成捆,每捆三根,整齐地堆放在斜坡顶端,并用木楔固定。
“老李,你这木楔钉得也太牢了吧?我都快钉不动了!”民夫王五擦着汗,抱怨道,他手里的锤子都快举不起来了。
老李放下锤子,看了看王五钉的木楔,“牢点好!这木楔得钉牢了,不然刮风下雨,原木容易滚下来,砸到人怎么办?上次就有一根原木没固定好,滚下来砸伤了两个人,咱们可不能再犯同样的错!”他拿起锤子,帮王五钉了几下,“你用点技巧,别光用蛮力,锤子要对准木楔的顶端,这样才容易钉进去。”
王五学着老李的样子,果然轻松了不少,“还是老李你有经验!我知道了,安全第一,再累也得把木楔钉牢!”
石块则被分类堆放——重量超过五百斤的大石块堆在最内侧,用于堵塞城墙缺口;两百斤到五百斤的中石块堆在中间,战时可以用绞盘吊到城墙上,砸向进攻的敌军;两百斤以下的小石块则堆在最外侧,士兵们可以直接从射击孔投下,打击靠近城墙的敌人。每一堆石块前都插着木牌,标明重量和用途。
“赵哥,这大石块这么重,到时候怎么运到城墙上啊?咱们也搬不动啊!”年轻民夫小张看着堆在最内侧的大石块,担忧地问道。
赵哥拍了拍小张的肩膀,笑着说:“放心,到时候会用绞盘吊上去的!叶娘子早就安排好了,在城墙边安装了几架绞盘,到时候咱们只要操作绞盘,就能把大石块吊上去。
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