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绪言众所周知,从腐蚀的观点来看,锅炉仅仅是一层带磁性氧化铁薄膜的钢支承着的。这层膜的维持首要考虑的是一切水处理方法,对运行锅炉和停运锅炉都是如此。尽管为此制订了深思熟虑的计划,锅炉腐蚀仍然是一个重大问题。腐蚀形态和原因可能很不相同,但这些腐蚀问题都具有一个共同特点:都是由这层磁性氧化铁薄膜的物理破损或电化学破损开始的。本文的目的是介绍汽包型自然循环式燃油锅炉内表面的常见腐蚀形态。对这些不向形态的论述和证实有助于现场直观鉴别腐蚀形态。本文不介绍仅借助于光学仪器才可用的鉴别方
INTRODUCTION It is a well-known fact that from a corrosion point of view, the boiler is supported by only a layer of steel with a magnetic iron oxide film. The primary consideration for this film maintenance is all water treatment methods, both for operating and decommissioning boilers. Despite well-planned plans to do so, boiler erosion remains a significant issue. Corrosion patterns and causes may vary, but all of these corrosion problems have one thing in common: they all start with physical damage or electrochemical damage to this layer of magnetic iron oxide. The purpose of this paper is to introduce the common corrosion patterns on the inner surface of a drum-type natural circulation boiler. Discusses and confirms these non-morphological forms contribute to the visual identification of corrosion patterns in the field. This article does not describe the use of optical instruments only available authentication side