第103章 作坊(第一更,求推荐)(1 / 2)

(上三江了,希望大家投张三江票支持一下!</p>

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叮当、叮当……</p>

离衙门不远的被太平军一把火烧掉的府学废墟内,依着残墙搭出了几十间草棚,那草棚里总是日夜不停的传出金属锤击声,那是工坊的铁匠在打造兵器,依如任何一支造反者一般,这打造兵器从来都是一件大事。</p>

对于朱宜锋这位“义军”大帅,同样也是如此,几乎是在据下黄州的当天起,他便命人张贴告示招募工匠,与太平军或者官军往往强征工匠不同,他在告示上说明了每月六两银子的“高薪”,而且这六两,还只是“基本薪酬”。</p>

尽管如此,也是用了好几天的功夫,这城中的先前为避免被强征而“潜逃”铁匠才纷纷为“高薪所诱”,来到了这工坊中作工,不过这铁匠倒也不多,毕竟,这黄州城内外也就那么十几处铁匠铺,不过十几个铁匠带着百余名学徒打造起红缨枪、大刀之类的武器,速度倒也颇快,尤其是前者,只有一根铁枪头,只要铁料能供应上,一天便能打造出数千个铁枪头来。</p>

当然,这并不意味着朱宜锋会把所有的宝都压在廉价的红缨枪上,实际上,几乎是在建立工坊的当天,他就命人建起了化铁炉,化铁炉依然是传统的中国式化铁炉,至于工匠幸亏这个时代基本上每个城中都有铸铁坊——专门铸造各种农具的铸铁坊</p>

那些铸铁坊里的铸匠这会自然也被招募到工坊之中,成为了工坊里的工匠。也就是从那天起,32磅以及12磅的卡龙炮的炮弹,便被送进了这工坊的铸坊之中,那铸铁匠人依着炮弹制起模,但他们所制的模并不是传统的泥模,而是如铸造农具一般的铁模。</p>

之所以会首先制造炮弹,则是为因为相比其它,炮弹的结构无疑更简单一些——只是一个圆型球体,当然,这铸造的是实心弹。</p>

置身于兵器坊的铸坊之中,看着地上木板上堆放整个的数百发球形实心弹,不需要取过炸弹,仔细查验,朱宜锋便能分别出这些自铸炮弹与船上炮弹的不同——这些由生铁铸成的炮弹都是以两个半圆坯模做铸而成,尽管用的是铁模,但外观看起来依然非常粗糙,且又留有合模时的线痕,相比之下船上的炮弹虽说同样为生铁铸成,但因为采用失蜡法铸造,所以外观看起来较为光滑而且没有铸痕。</p>

“李师傅,这铸痕怎么这么明显?”</p>

瞧着炮弹上的铸痕,朱宜锋的眉头便是一锁,问道身边的铸坊工长。</p>

“大,大帅,这炮弹只能铸成这样,亏得是铁模,若,若是用泥模,估计上面肯定有不少沙眼……”</p>

作为成记铸行里的铸工,铸了几十年铁锅、铁犁的李老歪自然知道这泥模的劣处,当然也知道这铁模劣处。</p>

“大帅,除非用蜜蜡制球、制模,否则这弹上的线痕肯定是去不了的,要不就得用熟铁,若是用熟铁,可以用锉去线痕……”</p>

熟铁……</p>

黄州城有那么多熟铁吗?</p>

那些熟铁还不够打造兵器的!</p>

至于这些用铁模铸出的炮弹,无一例的都是无法锻造、机加的白口铸铁,当初之所以选择铁模,是因为其方便整合,不像泥模那样必须靠时间来等待阴干,实际上,原本朱宜锋更倾向于采用沙模,不过最终却选择了技术成熟,在各个铸坊中使用了千百年的铁模——千百年来,国人一直使用铁模铸造农具、铁锅。</p>

但是铁模的也有缺点,从金属铸造学和金相学的角度来看,铁模的导热效果好,造成散热太快,使得生铁液在冷却时存在过冷度较大的问题,铁液中的渗碳体来不及析出石墨就已经凝固,因此铁中的渗碳体主要以碳化铁的形式存在,也即是白口铁。当然由于铁液在凝固过程中过冷度较大,因此表层的金属结晶微粒比较致密,身管较为光滑,也就是卖相很好。</p>

相比之下铁模的唯一好处就是加快了生产速率,不用像泥模那样等待泥模阴干。这点在十几年前鸦片战争时龚振麟的铁模中显得尤为突出,但是铁模铸炮的产品白口化非常严重,由于冷却速度太快,虽然比较光滑,但是生成的几乎都是白口铁,导致脆性增大,火炮的性能下降。</p>

在火炮上如此,在炮弹上同样也不例外。</p>

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