第六十章 铁模铸炮
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经过处理的铁水被灌入到火炮铁模中,再把铁模迅速放入高炉边上的保温箱内,使得铁模内的铁水不至于过快冷却而导致铸好的火炮白口化。高炉边上的保温箱,其实就是在高炉的内壁外围,再加上一层砖块,砌出一间小室,用来放置浇铸好铁水的铁模,防止铁模内的铁水温度降低过快。假如没有保温这一道程序的话,那么铁模因为散热比泥模快得多,铁模内的铁水会快速降温,导致铸造好的铁炮白口化,那样的炮,虽然坚硬但是十分脆,很容易炸膛。经过保温处理,铁模铸造出的炮就能放心使用。
等到保温室内的铁模慢慢冷却之后,再把铁模取出,放在车间内,打开铁模,趁着铸造的火炮还未完全冷却,炮管还是红色的时候,用钢钎在炮的尾部钻出点火孔,再放置在那里自然冷却,这样一门性能可靠的铁炮就完工了。
不过造出来的铁炮,还不能完全算是成品,还要人工对铁炮内壁进行打磨,磨得光滑之后,一门火炮就大功告成。因为目前还没有镗床对铁炮内部进行打磨,只能依靠人工。
铁模铸炮的效率比泥模铸炮的效率要高了许多,本来制造一个泥模都要花费一个月,一个泥模只能造一门炮。现在的铁模,可以重复使用,只要两天就能铸造出一门铁炮。各种不同的铁模,可以铸造各种口径的火炮。
事实上在真实历史上,十九世纪初期的外国人并非没有想过铁模铸炮的方便性,他们也考虑过铁模铸炮,可是无法解决因为铁模冷却速度过快而造成火炮白口化的问题,他们发现那样的火炮很容易炸膛,于是外国人就放弃了铁模铸炮,而是采取了铸造实心铁块,再用镗床冲出来的办法来造炮。在高炉外面造一个保温室,那么简单的办法,外国人并没有想到。
其实好多办法都是很简单的,举个例子:
哥伦布发现新大陆之后,有人挑衅他嘲笑他,那块陆地就在那边,无论是谁出海都能找到那块陆地。结果哥伦布拿出一个鸡蛋,问什么人可以把鸡蛋立起来。自然是没人做得到。哥伦布自己把鸡蛋气室部分打破了,然后把鸡蛋立起来。
宾客们强词夺理,说鸡蛋破了,能算吗?哥伦布回答道:“我在刚开始定条件时,曾有说过不允许把鸡蛋敲破?我能想到你们想不到的,这就是我胜过你们的地方!”
其实很多办法都是很简单的,关键是能不能想得到!
离开炮厂后,王新宇去了郑省英的府上。他手里提着两个盒子,要给未来的岳父和未婚妻送礼。王新宇虽然历史不怎么样,但他知道自己的未来岳父可不是什么小人物,是中国历史上第一任台湾知府!因此普通的礼物肯定送不出手,他送给未来岳父的礼物是一对用精钢造成枪管,白银做成枪柄,燧发机和扳机都是黄金制成的燧发手铳,枪柄上还镶有宝石。这对短铳,还是从荷兰人的一名船长手里抢来的战利品。而送给郑小姐的,是一副精美的意大利玻璃花瓶,这是英国人艾伯特从金奈带回来的,被王新宇无情的没收了,拿来包装之后,送给郑小姐。当时王新宇还振振有词的对艾伯特说,这种东西没什么稀罕的,等以后我自己做出来,送你十个八个好了!
刚刚到了门口,就有人去报:“老爷!姑爷来了!”
走进郑府大院内,王新宇有些魂不守舍的左顾右盼,似乎要找什么人。
“小姐没在,她去金门堂伯那里了,要明天才能回来。”郑省英走了出来。
“伯父,小侄刚刚从外面回来,给伯父送礼的。”王新宇递上两个礼盒。
郑省英看着两个礼盒,有点不明白,怎么送两个礼盒?
王新宇连忙把其中一个礼盒递了上去:“这个是送给伯父的礼物。”
郑省英打开礼盒,只见里面躺着一对做工精美,用黄金、白银和宝石装饰的燧发短铳,他知道这东西十分值钱,于是笑着收下。
王新宇又把另外一个礼盒递上去:“伯父,这是送给小姐的礼物,麻烦伯父转交给小姐。”
郑省英打开礼盒看了一眼,只见是晶莹剔透,浑身透明的一副琉璃花瓶,知道这东西十分值钱,于是他点了点头:“贤侄有心了!给芸儿的礼物老夫一定转交到她手里!”
王新宇向郑省英告辞:“伯父,晚辈先告辞了。”
“不在这里吃过晚饭再走吗?”郑省英想留下王新宇在家里吃饭。
王新宇拱手道:“多谢伯父好意,晚辈晚上还要和几位兄弟们一起吃饭。”
“好吧,你去吧!”郑省英面带笑容,“老夫知道芸儿没在,你也没心思留下来一起吃饭。”
王新宇正准备扭头离去,却见到大门外一位绿裙少女一阵风一样飞快的奔跑过来。他仔细一看,这不是郑芸又是谁!
“郑小姐!”王新宇欣喜若狂,迎了上去。
“公子!”郑芸红着脸叫了一声,“妾身听说公子回来了,特意提前赶回来。”
郑省英笑着问道:“贤侄还要走吗?”
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