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魔界狂想曲- 第一四二六章 煉鐵常識-玄幻奇幻-萬花小說
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第一四二六章 煉鐵常識

  有了銅之後,便有了銅絲。


  而銅絲是非常好的導線。


  如果他能夠找到磁鐵礦,那麽他就有能力生產小功率的電動機和發電機。


  他不會生產電池,已經忘記了電池的原理。


  至於銅絲外麵的絕緣漆應該怎麽製作,他不知道。


  隻能日後再想法子。


  他試著把銅條從鋼上的小孔中拉過,然後就拉出了銅絲。


  很輕鬆的就獲得了十來米的銅絲,跟他在老家見過的一個樣子。


  非常適合製作導線,但是現在他既不會生產電池,也沒有磁鐵來製作發電機和電動機。


  或許自己需要進一步對這個世界進行探索,找到這些資源。


  關於鑄幣的問題。


  現在隻有銅和錫,沒有金銀。


  難以形成貨幣體係,畢竟不能背著幾十斤銅來購買那些貴重物品。


  他們需要金銀。


  那麽,用紅寶石來當做貨幣是否可行?


  目前人口總數非常低,隻有五千左右。


  腰帶山出產紅寶石原石。


  他有金剛砂,可以用於打磨紅寶石原石,使之變得漂亮、具有裝飾性。


  雖然正常來說紅寶石會非常貴重,不適合作為貨幣。


  但是他們這裏的情況是,人均紅寶石產量比較高,完全有能力充當貨幣。


  確實有一些來自鳥巢平原的原始人帶來了一些紅寶石原石,他們聽說過馬林喜歡這種東西,但是並不知道它們的價值。


  於是馬林便建議‘四叔’向他們展示打磨後的紅寶石,讓他們了解它的漂亮和價值,然後建議他們帶來更多,並說明鐵爐村願意花比較高的價格進行收購。


  此外他願意免費向這些帶來了紅寶石的原始人提供金剛砂,他們可以帶回去打磨自己手中的原石。


  他們並沒有適合切割紅寶石的刀具,所以隻能用金剛砂打磨。


  而金剛砂是他自己用木炭和沙子製作出來的。


  木炭與沙子在一千四百度左右會反應生成碳化矽,也就是金剛砂,在有一定摻雜物的情況下反應溫度會降低兩百度左右。


  他的爐子的溫度足以熔化鋼水,自然也能夠用於製作金剛砂。


  黏土爐如果封閉的比較好,燃燒質量好的木炭,自然溫度能夠達到**百度。這個溫度可以把用黏土捏製的器皿給燒成陶器,隻是這樣子的陶器質地粗糙,還容易滲水。


  使用風箱給這樣子的爐子吹風,溫度可以達到一千一百、一千二百以上溫度。這個溫度可以把含碳量高的生鐵燒成鐵水,華夏國的幹將莫邪、歐冶子鑄劍都是怎麽做的,而西方人一直不知道安裝風箱,爐子的溫度不夠,隻能生產出海綿鐵,然後用海綿鐵鍛造武器、盔甲片之類的東西。


  純鐵熔點非常高,大約有一千五百多度,就是說即使使用鼓風機,古代人的煉鐵爐也無法把純鐵給燒成鐵水。


  但是含碳量越高,它的熔點就會越低,一千兩百多度的爐子便可以冶煉出鐵水來。


  鋼是一種含碳量較低的鐵,根據成分,大約需要一千四百多度的高溫才能把它們給熔化。


  那麽古代是怎麽煉鋼的呢?


  古代人沒有能力把鋼給燒成鋼水,無法進行鑄造,隻能在它們的固態進行加工。


  怎麽獲得鋼呢?


  華夏國古代非常流行‘炒鋼法’。


  做法就是把煉鐵爐煉出的生鐵鐵水給引入另一個爐子上方加熱,然後用柳木棍攪拌。


  生鐵鐵水含有碳,但是溫度這麽高,碳遇到氧氣會變成二氧化碳,於是攪拌的過程中碳含量便越來越低,離鋼越來越接近。


  這時候便麵臨著一個問題,那就是碳含量一低,熔點就升高,所以生鐵鐵水會逐漸向固態轉變。


  接著便會得到很多團狀鐵塊。


  而且鐵塊中的含碳量是非常不均勻、難以控製的。


  其中會出現含碳量剛好合適的鋼,非常堅硬,適合冶煉兵刃。


  既有生鐵又有熟鐵,生鐵含碳量太高,熟鐵含碳量太低,對兩者中和,便可能得到含碳量正好合適的鋼,這種做法叫做灌鋼法,華夏國漢朝便會使用了。


  具體做法是,把生鐵鐵水給澆到熟鐵上,等待兩者的融合。


  然後對它們進行反複的鍛打,你中有我,我中有你,碳逐漸平均,於是便有可能得到好鋼。


  隻是這種做法也與運氣有關係。


  武俠電視劇中那些雪亮的兵刃基本上都是靠灌鋼法生產出來的。


  西方人既然不會使用風箱,不會鑄造鐵器,自然也不會炒鋼、灌鋼,他們怎麽生產鋼的?


  他們用**百度的爐子煉鐵,把鐵礦石粉碎、混合木炭粉,可以煉出海綿鐵來。


  這是種熟鐵,含有很多雜質,質量很不均勻,所以他們要把海綿鐵給砸開,觀看各部分的性能,為它們各自尋找合適的用途。


  雜質少的熟鐵,可以用來鍛造兵刃。


  燒紅,用鍛錘鍛打出需要的形狀。


  熟鐵想變成鋼需要獲得碳。生鐵想變成鋼需要減少碳。


  怎麽給熟鐵增加碳呢?

  把指甲、頭發剪了扔到煉鐵爐裏,具有增加碳的效果。


  故事中活人跳進煉鐵爐,也具有增加碳的效果。幹將莫邪得到天然的好鋼,知道它們適合鑄劍,可是放入煉鐵爐,不管使用多強的鼓風、多好的木炭,都無法熔化它,這是因為鋼含碳量低,熔點高,他們那種爐子是不可能燒熔化的。


  莫邪跳入煉鐵爐,鋼熔化成了鋼水,可以用於鑄劍,是因為含碳量增加了,達到了可以部分熔化的程度。這是馬林從網上看到的解釋,不知道是否正確。


  西方人給熟鐵滲碳,采用的辦法似乎是給熟鐵表麵敷木炭粉之類的材料,效率比較低。


  他們通過幾百年的海外殖民獲得大量的財富,想改善煉鋼的工藝,於是從華夏國得到經驗,把灌鋼法發展為工業生產方式。


  再後來,非常晚的時候,大約是第一次鴉片戰爭與第二次鴉片戰爭之間,西方人發明了熱風爐技術,能夠把煉鐵高爐的溫度提高到足以熔化鋼的程度,此後的鋼的生產變得更加的可控、高效。


  此外華夏國有種外來的鋼,叫做镔鐵,用來鍛造武器,會特別的堅硬。武俠小說經常會提到。


  镔鐵乃是烏茲鋼、印度鋼、大馬士革鋼,采用的是一種非常麻煩的方法來生產鋼,需要以印度特產的高品質鐵礦石作為原料,所以別的地方無法模仿他們的產鋼法。


  在當時,烏茲鋼是世界上最好的鋼,東西方都以收藏它們為榮。


  它們的產量極低。可能一塊鋼需要一個月才能生產出來,生產過程非常神秘,具有宗教色彩,所以他們才那麽貴重。


  烏茲鋼製作的兵刃極為鋒利、結實,是當時所有兵器中最好的。

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