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第92章 面条启发(2 / 2)

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我真是太笨了,早该想到啊!过去制造铁丝网和钢缆绳,不就是采用钢材拉丝的技术么?只不过这种钢丝更细一些,而且是实心的,钢管更粗些,且是空心的这点区别,其实原理差不多嘛!

刘纬心里念叨着这些,骑一匹快马,赶去工部找到马钧,把想法和盘托出!马钧闻听此言,也是眼前一亮,赶紧安排人着手准备,三天以后,便按照刘纬的设想,把拉管槽的模型造出来了!

这个拉管槽,共有三层,最外面的一层为铸铁材质,中心层是隔热石棉,里面一层是石墨!这种结构,能保证一千七百度的钢水,不至于熔穿了容器,最外面的一层,也就是三百多度而已!

最关键的,还是拉管出口,为纯石墨刻造,为了保证所出钢管的尺寸精确,颇费了一番脑筋和工夫!不过好在,马钧总算是用最短的时间把它造出来了!

模型已经有了,事不宜迟,试验马上开始!在所有人的注视下,烧得滚沸的钢水,被倒入了拉管槽中,还没施加任何外力的情况下,就已经从孔洞当中自行流出,随着一根通红的钢管出现在眼前,现场的人群沸腾了!

终于!终于造出来了!刘纬此刻,难掩内心兴奋,挥舞拳头,高声叫好,一旁的马钧等人,更是喜极而泣,拍手称快!然而,当这根钢管终于冷却定型以后,众人一拥而上查看成果时,却傻眼了!

这他娘的哪是钢管?歪歪扭扭,拐拐弯弯,还有许多地方,中空管道已经塌陷粘连到一起,简直就是一根用钢水浇筑出来的面条,哪能用来造枪啊!

目睹于此,众人心头如同被泼了一盆冷水,刚才还热烈喜庆的氛围,顿时消失得无影无踪,马钧一脸苦相,刘纬眉头紧锁,似乎都在思考,问题究竟出在哪里呢?

按理来说,这个路子应该是正确的,大概是某个细节,没有处理好,这才导致钢管流出之后,不能及时定型,以至于弯曲、塌陷、粘连!这个细节,应该就是温度!

刚刚倒入拉管槽中的铁水,足有一千七百度以上,仍有一定的流动液性,由孔洞出来时,整体还很软,如糖稀一样,自然会变形!如何才能令其保持原状,并拉长拉直呢?

两个办法!一个是降低钢水的温度,令其流出之时,更加粘稠;另一个,便是从高处垂直向下拉出钢管,利用地心引力,使其笔直,且能保持原状,而不塌陷粘连!

想到了解决方案,第二轮试验很快就开始了!这一次,刘纬命人先堵住孔洞,等铁水稍稍冷却再开启,附以外力挤压,垂直向下拉伸的办法,最后终于造出了合乎规格的无缝钢管!

这是个了不起的突破!有了能批量制造统一规格的无缝钢管技术,制造火枪,将不再是梦想,似已触手可及!

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