WRC公告556焦炭塔维修手册是一份帮助炼油厂维护和项目工程师编写具体详细的焦炭塔维修工作说明的文件。该文件包括滚筒检查方法和协议。本节还讨论了用于汽包施工的复合钢和合金以及焊接填充金属，以及复合板的采购和制造。该手册包括焦炭塔修复所用焊接工艺的说明，以及预热和焊后热处理的需要。有一节介绍补焊程序，有时可以消除焊后热处理的需要。 最后，有18个详细的分步修复程序，涵盖了最常见的焦炭塔损坏机制和修复场景。

WRC Bulletin 556Repair Manual for Coke Drumsis a document to help refinery maintenance and project engineers write specific and detailed work instructions for repairing coke drums. The document includes drum inspection methods and protocol. It also discusses clad steels and alloys and welding filler metals for drum construction as well as clad plate procurement and fabrication. The manual includes a description of welding processes used for coke drum repair, plus the need for preheat and post weld heat treatment. There is a section on repair welding procedures which may sometimes eliminate the need for post weld heat treatment. Finally, there are 18 detailed, step-by-step repair procedures that cover the most-common coke drum damage mechanisms and repair scenarios.