Abstract The removal of concretion from the bores of cast iron, marine archaeological artillery represents an unusual mechanical problem for conservators. While the exterior may be cleaned like any other concreted iron object, the interior has extremely limited access. Specialised tools are therefore required to remove this concretion. Over the last several decades, many laboratories which regularly clean artillery have developed methods using coring drills for this process, sometimes supplemented with other tools. The exact drilling apparatus and operating methods vary widely, since multiple conservation laboratories have developed unique systems for this process and each operates under different constraints and towards different specific goals. This article serves to publish some basic design elements for different artillery boring assemblies. In describing different methods, comparisons are made with respect to the goals, constraints and priorities which produced a given design. The benefits and drawbacks of those designs are then evaluated.

中文翻译：

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对用于铸铁，圆孔，海洋考古大炮的混凝土的精选钻孔方法的综述

摘要海洋考古大炮从铸铁孔中清除凝结物对于储户来说是一个不寻常的机械问题。尽管可以像清洁其他混凝土物体一样清洁外部，但内部的访问极为有限。因此，需要专门的工具来消除这种凝结。在过去的几十年中，许多定期清理炮兵的实验室已经开发了使用取芯钻进行此过程的方法，有时还辅以其他工具。确切的钻探设备和操作方法千差万别，因为多个保护实验室已经为该过程开发了独特的系统，并且每个系统都在不同的约束下并朝着不同的特定目标运行。本文旨在发布用于不同炮兵镗孔组件的一些基本设计元素。在描述不同的方法时，针对产生给定设计的目标，约束和优先级进行比较。然后评估这些设计的优缺点。