第286章 银圆
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四更，没有五更，大家不用等了，实在是累了。龙腾小说ltxsba.com
以大宋现有的冶炼条件和锻造技术，以银铸币确实是赔钱的。
不说大宋在银里掺不进东西，单是铸钱之法就足以令人抓狂。
大宋用的是范铸，而且为了防伪保证铜钱的质量，用的是母钱翻砂法。工艺之复杂，产量之少，简直都不好意思说这是国家行为。
一个铸钱熟工，一天也只能铸钱百文！
想想大宋的货币总量，这得用多少工人，多少时间来铸钱？
而一个佣工，就算没工资，一天的吃食就得多大的成本？
所以，朝廷铸钱，一点油水都没有。
当时在课堂上，韩琦其实就想说，朝廷无限度铸币的设想，根来就不成立。因为铸的越多，赔的就越多。
现在，唐奕说要铸银币，还想进口白银，韩琦只能说他很傻很天真！
唐奕递给他一块银板，韩琦拿着细看
其实，这已经不算是银板了，就是银币。只不过无方孔，也无正反面的字。
颠了颠，差不多半两，也就是正好值一贯钱的样子。
“子浩，这是？”
唐奕也不卖关子，“搀了东西，含银七成。”
那边曾公亮眼眼一瞪，一把抢了过去。
“掺了什么？怎么一点也看不出来？”
唐奕心说，让你看出来，老子也别玩化学了。
“相公先别问掺了什么，只说，七成银，若朝廷以此法铸币，可有赚头？”
当然有赚头！
银可不是铜这种相对不算贵的金属，能省出一成，就是好大一笔利润啊。
“要看子浩掺的是什么。”
唐奕道：“掺的是铁，但却不是普通的铁，而是铬铁。”
哦靠！铁啊！连赵祯都不淡定了。
“拿来，与朕观瞧！”
铁啊？掺在白银里，当银子用。那得多大的利？
赵祯都自动忽略了唐奕说的“铬铁”是什么铁了。
曾公亮一边把银板交给赵祯，一边急问：“工艺如何？”
其实，就算工艺繁琐一点朝廷也有赚头。只不过，曾相公幻想着要是工艺也能省点，那就更好了。
唐奕苦笑，“这也是草民一直没把这种银中掺铁的法子拿出来的原因。”
“目前，我只能在我的实验室里完成铬铁的提炼，还不能实现大规模的冶炼。且模具材料的冶炼也无法实现。”
“这不是问题！”曾公亮大手一挥，“明白我就令工部拣选最好的冶炼工匠来回山助你！”
唐奕摇头，“这不是工匠的问题。”
“那是什么问题？”
“炉温！”唐奕肯定道，“铬铁矿，相公可能没听过。大多数时候，人们会把它和灰磁石混为一谈，有弱磁性，却非磁石，而是一种含铁和铬的矿石。”
“这种矿石的冶炼温度比正常铁矿要高很多，目前的冶炼水平是提炼不出来的。”
炼炼不出来大伙儿傻眼了。
韩琦问道：“高多少？”他觉得，可能是唐奕找的工匠水平不够。
“最少要冶铁炉温的两倍！”
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