Action of Coal on Metal Corrosion in Coal Mines  

作　　者：孙智 王温银 沈寒领 

出　　处：《International Journal of Mining Science and Technology》1998年第1期27-31,共5页矿业科学技术学报（英文版）

摘　　要：Electrochemical corrosion behavior of metals under a variety of coal condition bas been studied in this paper. The corrosion dynamics and electrochemical parameters of metals have heen measured and the micrograph of metals corrosion has been analyzed. The results show that in the neutral electricity medium solution the metal corrosion rate varies greatly when metals contacted with different kinds of coal. The coal exerts an important action on corrosion of metal contacting with coal.In this case the deciding factors of this action are the coalification of coal and the relative electrode potential of metal. The effect of higher coalification coal with higher electroconductivity such as anthracite coal is vary noteworthy while the low coalification coal with low or without any electrocondutivity such as brown coal and coking coal produces little influence.Electrochemical corrosion behavior of metals under a variety of coal condition bas been studied in this paper. The corrosion dynamics and electrochemical parameters of metals have heen measured and the micrograph of metals corrosion has been analyzed. The results show that in the neutral electricity medium solution the metal corrosion rate varies greatly when metals contacted with different kinds of coal. The coal exerts an important action on corrosion of metal contacting with coal.In this case the deciding factors of this action are the coalification of coal and the relative electrode potential of metal. The effect of higher coalification coal with higher electroconductivity such as anthracite coal is vary noteworthy while the low coalification coal with low or without any electrocondutivity such as brown coal and coking coal produces little influence.

关 键 词：CORROSION METAL COAL COALIFICATION POTENTIAL 

分 类 号：TG172[金属学及工艺—金属表面处理]