第三十三章 深山藏‘宝’
最新网址:m.ltxsdz.com
既然从骨子里就发黑了,还想着去洗白不是笑话吗?当然,陈鸣是永远也想不到,就因为陈家这种贩卖私盐、铁料发家和主支世袭皂户的出身,在二百多年后网络兴起的时代里,被欧洲无数键盘愤青们喷成了‘贪婪、卑劣的走私商家族,社会地位低贱的只能与娼女支、乞丐并列’。
小南山向西七十里。
青山碧水中,一座不算太高,却两边悬壁的山头上,一做修整严正的山寨里人头攒动,陈鸣高兴地拍着身边依旧在发着浓重硝烟气的铁炮,目光期盼的看着前方山下。
这是陈家刚刚铸造好的小炮,用的是这个时候全世界绝对独一无二的铁模铸造法。比起传统的泥模,铁模的好处是不须言表的【在n多本小说中,铁模铸造法那就是神器啊】。但这并不说它就真的那般神奇。
铁模的缺点就是,从金属铸造学和金相学的角度来看,铁模的散热太快,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(石墨化来不及进行)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;
但这对比西方以灰口铁为主的铁质大炮来说,真心并不占据优势。
铁模的唯一好处就是加快了生产速率,不用像泥模铸炮那样等待几个月的时间。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,但是生成的几乎全是白口铁,导致炮身的脆性增大,火炮的性能下降。为了增加抗拉强度只能用数量来堆砌质量,也就是增加壁厚来解决。
眼下的这门两斤炮,从炮弹重量上算可以说是与西方的三磅炮等级,光炮身重量就已经达到了220斤【清斤】,换成市斤的话接近270斤。不知道比之西方的三磅炮要重上多少。
陈鸣很清楚这门铁炮的缺陷在哪里,但他没办法去改进啊。就他的那点水平,照本宣科还行,加以改进还是洗洗睡吧。以陈家现在的条件内模水冷技术都无法吃透,陈鸣唯一能用上的就只有生铁精炼了。
这是英国人造铁炮的法子。
先用高炉炼出生铁,冷却成白口铁锭,由于炼铁杂质较多,所以要再将铁锭砸碎进入反射炉精炼,融化后除去表层渣滓,这样二次熔炼后的铁液更为纯净。并且英国人的铁炮用铁,其生铁要用木炭来炼,以减少硫磷等杂质的加入,或者铁矿石本身几乎不含硫磷,这是陈家现下很难彻底达到的。虽然伏牛山里也不缺木料,陈家在大山当中开私矿和修筑寨子,也砍伐下了大量的木头。这些原木除了用来修筑寨子和搭建房屋,余下的多是用来烧炭,矿场上的用料能有多少?
反正陈鸣就是尽可能的提供给这几个铸钟的工匠最好的条件吧,搞出来的两斤炮还是重的让他直皱眉头。还好射程方面让他很是满意,就刚才那一炮的落点,估计能有一里地。
在这片荒无人烟的伏牛山中,从去年冬天开始,陈家就一点点的往大山中转移人口,单身的和拖家带口的,全都要。陈家原有的两个私矿,人工相加也不过300人,现在却是接近一千人了。扣除了二三百人的妇孺孩童,工人数量也翻了一倍多。何况陈家还从中抽人组织起了一支二百人的护矿队。
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