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第355章 贝塞麦转炉炼钢法(2 / 2)

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当时正值工业跃进期间,工场手工业转向了机器大工业,机器的大量发明和广泛使用,再加上各种新式武器的出现,使得各国对于钢铁的需求量大增,而新的炼钢法以其出色的优势成为了工业跃进时期的一抹亮色。

这种贝塞麦转炉炼钢法使用了一种一米二高的炉子,系固定式的垂直容器,下部有6个风口,一次性可以加入熔

融生铁约三百五十公斤,该设计在当时并不被人看好,很多人认为不加焦炭只吹空气会导致铁水凝固。

但是当转炉真正开始使用时,却发现效果相对很好,铁水中的锰和硅氧化,形成褐色烟雾逸出,而碳则被氧化成了二氧化碳,更关键的是炉温在半个小时内就升到了1600摄氏度,甚至还可以再炼一炉钢,因此这种炼铁方法一出来后,很快就得到了各国的关注。

不过林敬知道贝塞麦转炉炼钢法也并不是没有缺点,它在炼一些含磷较高的矿石时,容易出现炼出的钢铁太脆的问题,而贝塞麦花了很长时间都没能解决这个问题,因此在炼铁时只限于吹炼含磷少的生铁。

可问题是眼下华夏铁矿品相都不太高,矿石含铁量偏低,杂质偏高,特别是含磷普遍较高,这也是当下华夏炼铁技术先进可是出铁质量普遍不高的重要原因,相当于欧洲那些高品位铁矿,华夏铁矿采炼难度相对大很多。

好在林敬作为穿越者,自然也知道后世针对这个问题是有解决办法的,在贝塞麦发明转炉炼钢法的二十年后,英国人托马斯发现生铁中的磷被空气氧化后,可以被硅质炉还原成磷,重新进入钢水,发现石灰石能使铁水脱磷。

而想要实现这一工艺实际上并不复杂,托马斯在高温下用烧成熟料的白云石与焦油混合烧成了一种碱性耐火砖,将贝塞麦转炉原先的酸性硅酸质炉衬改为碱性炉衬,在转炉冶炼过程中,添加石灰石使炉渣成为高碱性,最终能够炼出脱磷的钢。

听完林敬的简单介绍以后,宋应星不由得有些目瞪口呆,他实在没有想到太子居然对炼铁工艺这么了解,尽管他还没有去实践太子所说的工艺,可是他心里却产生了一个奇怪想法,那就是这些法子恐怕都有效果.....

“殿下,请容臣无礼,臣想现在告退,然后去试试这种炼铁工梦

宋应星深深躬身行礼,他怀着些许的忐忑心理望着林敬,而一旁的汤若望和薄珏也都露出几分期盼,很显然对于他们这些人来说,没有什么要比这些更加令人在意。

林敬微微一笑,大手一挥,道:“走,那咱们现在就去京城铁厂试一试新工艺!”

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