第二百四十八节 引信
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当天,林深河和姜野对压制机进行了若干次机械测试――用得是物理性质类似黑火药的惰性粉状物,证明所有的机械都完全运转正常。龙腾小说网ltxs520.com姜野又给所有的运动部分加上了足够的润滑,保证运行的时候不出任何问题。
机械部门已经不是第一次制造火工上专用的压制机了――制造栗色火药发射药饼的时候就用过――但是过去没有进行过如此高压力高密度的压制。
第二天一早,林深河和志愿帮助他干活的归化民工人穿上了潘达提供的防爆服和专用头盔,一步一步的挪到了机器前面。
屋子里的温度,稳定在13度上,湿度计显示房中适度90%。
“一切正常。”一个专门观察温度计和湿度计的归化民工人做了一个手势。
林深河深吸一口气,打开了装着火药的密封桶。
桶里是新制的粉末状黑火药――临高的黑火药一般都经过造粒处理以便储存:粉末状黑火药在储存状态容易造成成分沉淀分离。
他用铜制的量勺小心翼翼的从火药桶中舀出火药,在桌子上天平秤上精确的称量出1000克。装入大型的瓷质容器,然后倒入克%浓度的酒精溶液,归化民工人用一根木棍开始缓慢的搅拌,直到完全均匀。
“75克装药。”林深河指示道。到目前为止,一切还算正常――这也是最安全的阶段。结下了才要进入关键性的步骤。
归化民工人按照他的指示,从箱子里取出了对应的模具固定在底座上。模具有好几种,对应不同的药柱形状和质量,全部用铜制造。
搅匀的黑火药粉被精确称量过之后装入了模具,林深河不放心工人,亲自操作压力机。压力机的施压装置时通过一个手动转轮带动液压缸。对螺杆缓慢的施展压力。
他缓慢而均匀的转动着转轮,确保压力传送不至于太快――太快太猛很容易引起爆炸。防爆服里又闷又热,他的心情又非常的紧张,不一会就大汗淋漓了,这让他产生了错觉,以为屋子里的气温上升了。
“检查温度!”
“气温14.5度,湿度90%!正常!”
75克药柱的尺寸他用公式进行过专门的计算,确保不会压制过头。不过。这只是理论上的结果。现实是否会一样他并无十足的把握。当然尺寸愈来愈接近的时候,林深河脑门上的汗珠子也就愈来愈多了,他又转动了几圈,直到药面下降到标志线上――第一个药柱成型了。
林深河小心的把药柱从模具里脱出来,装在一个固定用的盘子上――接下来就是等它自然干燥了。
火房有专门的干燥室。但是这次是性质不明的试制品,不能混入量产品中一起干燥。所以实验室另外设干燥间,这里的空气湿度和温度同样有控制,药柱在低于40度室温下自然干燥。
“然后再来下一个!”林深河信心大增,既然压制过程没有出现意外,说明整个工艺流程是没有问题的。
他又压制了各种尺寸和质量的药柱。包括准备用来装填手榴弹的――目前的手榴弹就威力来说只不过是个大号爆竹而已,杀伤力不值一提,是美国人口中的所谓“震撼手榴弹”。
压制药柱的另外一个用途就是充当火箭弹的推进剂,形状、密度一致的药柱是火箭弹道一致性的重要保证,意义非常大。据他估计,改用这种新得压制药柱之后,黑尔火箭的射程和精确度都能上一个台阶。
当然。高密度黑火药药柱最大的用途是用来装填炮弹,让原本纯属点缀用的榴弹在威力上一个新台阶。林深河认为。目前的陆军广泛使用的12磅和24磅滑膛炮尽管有制造简单,使用简单,适用于低技术水平军队的优点,但是从长远看滑膛炮威力偏小,火炮射速低的缺点是无法克服的,并非某些人吹嘘的那样“顶用二十年”。
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