第二十节 机械总厂
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人工修筑的斜坡上铺设轨道，翻斗轨道车停在斜坡上。整个翻斗式装卸机的原理非常简单，通过链条转动将许多个翻斗不断提升到高位，然后自动倾覆，将矿石翻倒在货舱内。翻斗下行，下行到地面段的时候再通过人力不断的将矿石装满翻斗。链条和挂在链条上的翻斗是一种循环动作。尽管加料依然采用人力，但是实现了连续装卸货物。劳动效率比码头工人抬大筐子不知道高出多少。
原理虽然很简单，挂链却是一个极大的技术难题。属于高强度的高强度圆环链。34个翻斗在挂链上，每个翻斗还要承载数吨的铁矿石。对挂链的负荷有很高的要求。牵扯到材料、热处理和机械加工多方面。
现在，试验用的木翻斗已经全部挂了上去，用沙袋和铁锭加满了工作负荷。展无涯和机械厂的一些骨干元老们都在翘首观望着。
展无涯看到人来得差不多了，向工人们挥挥手说：“大家往后撤，马上开始！”
工人听到展无涯下令，马上打开传动开关，锅驼机通过变速箱输出功率，随后卷扬机开始转动。链条被绷紧了，一排挂斗晃悠悠的开始运动，轰隆轰隆的往上升，越升越高，刹那间就到三分之二的高度。
展无涯、蒋宏军、梁信、孙立等一干机械口的元老和所有在场的工人都出神的望着，翻斗欢晃悠悠的越升越高，心理越高兴。链条虽小，却是工业设备领域内的必需品，现在临高自产的挂链，无论在负荷量还是耐久性上都显得非常不足，这次不管是材料还是加工手段都做了大幅度的改进，如果能制造成功就解决了工业化的一个大问题。
众人望着望着，忽然咔嚓一声，链条断了。
“糟糕！”大家刚喊出来，只听轰隆一声巨响，挂斗全摔落到地上，烟雾四起，砸了个稀巴烂。
孙立摸了下头上的安全帽：“负荷能力还是不足啊。”
“要做金相学分析，”展无涯说，“看看到底是材料问题还是加工的问题。”
当下大家把链条抬了回去，放在锻造车间里。机械总厂的锻造车间规模和兵工厂不相上下，当然大型蒸汽锻机是d日之后自制的。
“大家晚上来搞下分析吧。”展无涯对满脸失望的机械口元老们说，“有人晚上要和女仆过不？有这个计划的可以不来。”
几个哄笑起来，孙立说：“女仆放着总在那儿，想要随时用，早用晚用一个样。我肯定来。”
其他几个人也表示会来。机械厂是元老最为密集的地方，许多机床上的操作工就是元老本人，特别是在车床、钳工和联合加工中心上，主力依然是技术工人出身的元老。他们不但自己要操作设备，还要承担教授徒弟的任务。工作非常的繁忙。许多人从机械厂草创开始就是住在厂子里的，现在有不少人还是睡在自己的办公室。对很多人来说工作就是他们的娱乐。
展无涯也住在厂子里，他对机械总厂的感情尤其深厚――这个机械总厂最早的底子就是当初他在广州郊区开得小机械加工厂。他平日里就睡在厂里的一间宿舍里――和过去当小老板的时候一个样。
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