第七百三十章 钢芯
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李植走在机床工厂里，看着新生产出来的刨床、铣床，点了点头。龙腾小说ltxsba.com
所谓刨床，就是一种用刨刀对工件的平面、沟槽或成形表面进行刨削的直线运动机床。这种机床加工精度较高，适用于加工少量高精度工件。
而铣床则是用高速旋转的刀头加工平面、沟槽、曲面、齿轮等的机器，效率较高。
随着各式机床的陆续装备，范家庄的工业水平已经达到十九世纪初的水平。这对大规模生产蒸气机车是很关键的。否则没有各式机床，手工打磨的话，蒸汽机车的制造周期会很长，成本会是非常高的。
不过李植今天来机床工厂里检查倒不是为了蒸汽机车，而是想看看机床工厂能不能造出后装步枪。
“韩金信，你说江北军已经开始批量装备新式步枪？”
韩金信点了点头，拱手说道：“国公爷，线人报告，江北军征调了江西附近几省的火铳匠户，埋头打造新式步枪。据线人在训练场上的观察，这新式步枪能打两百米，一分钟能打三发。”
李植沉吟说道：“两百米，这岂不是和我们没有装瞄准镜的标准步枪一样。”
韩金信说道：“正是如此，国公爷。”
李植吸了口气，暗道这米尼步枪的秘密可能已经被这个时代的人发现了。米尼步枪的窍门实在太简单，所有的关键也就是一个尾部中空的子弹设计。这个秘密保存了十年才被其他势力掌握，已经让李植感到很欣慰了。
不过既然其他势力开始装备米尼步枪，李植就要升级自己的军备，继续保持技术上的领先。
这是一个很紧迫的问题。江北军人数是虎贲军的两倍以上，如果虎贲军的技术水平不能超越江北军，就可能会被江北军击败。
虎贲军若是败了，一镇四省的繁华都将烟消云散。李植的事业将完全失败。
李植在各式机床中间来回穿梭，看工人在机床上忙碌制造蒸汽机车的组件。
如今范家庄的机床工厂已经进入一种自主进化的阶段。不需要李植怎么指点，机床工厂里的匠头就能根据生产的实际需要不断改进机床的精度。目前的精度控制已经达到四分之一毫米的水平。
对于第一代蒸气机车来说这个精度够了，不过对于后装步枪来说，这个水平还是差了点。
在李植的记忆里，十九世纪中期后装步枪出现的时候，欧洲的机床加工精度已经达到了十分之一毫米水平。一把后装步枪动辄五、六十个组件，是大量的小玩意组装起来的。但最后组装成一把步枪后却要求枪机做到高度气密，极为考验加工精度。
最有名的早期后装步枪无疑是德莱赛针发枪。这种步枪在1866年的普奥战争中大发异彩，帮助普鲁士击败了使用米尼式步枪的奥地利。但实际上，早在十九世纪二十年代，欧洲就有好几种后装步枪问世。
这些后装步枪的早产儿毫无悬念地无人问津，正是因为气密性太差导致射程和精度远低于前装枪，没有实战价值。
李植想生产后装枪，还必须等待机床工厂的机器升级换代，再把精度提高一些。
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