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第1776章:奇幻的罐头(Ⅰ)

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对普通士兵而言,能吃饱就算是幸运了,口味是好是坏,根本不敢奢求。

普通士兵不敢奢求,罗兰却不能放低要求,开动脑筋琢磨一个问题:行军口粮是否可以进一步改良?能不能变得更便于携带,更耐储存,甚至吃起来更可口一点?

顺着这个思路延伸下去,罗兰很自然的联想到地球上最常见的一类军粮罐头!

罗兰犹记得,地球上最早的罐头出现于18世纪末。当时正处于拿破仑战争时期,法**需供应商将经过高温杀菌的食物密封在真空玻璃罐里,由此发明出世界上最早的罐头食品。拿破仑的军团横扫欧陆战无不胜,其中也有“罐头”的一份功劳。

1810年,英国人彼得杜兰发明了更易保存的锡制罐头。早期的锡罐头是锡、铅合金,在食物本身具有酸性的情况下,铅会进入食物,而人体摄入超过一定量的铅含量就会导致中毒。

1915年,美国人制造出第一个铝制易拉罐,同年铝制的罐头也出现在超市的货架上,现代罐头产业由此诞生。

……

玻璃易碎,锡铅合金有毒,作为来自地球的穿越者,罗兰当然希望一步到位,在瓦雷斯推广铝制罐头盒。可惜事与愿违,找杰克和杜瓦林打听过后他才得知,瓦雷斯的炼金术师们尚未发现类似“铝”的金属元素。即便瓦雷斯世界的地壳中的确有铝元素存在,还要考虑一个开采和冶炼成本的问题。须知在电解铝技术发明之前,铝的冶炼和提纯工艺非常麻烦,产量很低,以至于直到19世纪初期,地球上的铝制器皿仍然是贵比金银器皿的奢饰品。

开发铝罐这条路不好走,罗兰就退而求其次,向远东军事技术研究院提供了两条替代铝罐的思路。

第一条思路是采用远东产量最大、价格最低廉的铁皮制造罐头盒。但是铁制品有个致命的弊端,太容易生锈腐蚀,在潮湿的行军环境下,铁盒罐头过不了几天就会生锈腐蚀,无法长期保存食物。因此,倘若采用铁皮加工罐头盒,必须拿出一套行之有效的防锈蚀对策,而这正是以卡夫塔为首的机关术士们的特长。

第二条思路是借助“星质炼金学”的研究成果,尝试用星质与其他材料化合,配制出一种类似地球上的塑胶的新材料,用于制造罐头食品的包装盒。考虑到战场环境复杂多变,这种塑胶材料必须具备防水、耐氧化、耐腐蚀、不易破裂等特性,并且能够承受一定限度的高温与低温,无论在炎热的南方沙漠还是寒冷的北方雪山都能长期储存。

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