高温腐蚀又称煤灰腐蚀,它指的是高温积灰所生成的内灰层含有较多的碱金属,它与飞灰中的铁铝等成分以及烟气中通过松散外灰层扩散进来的氧化硫的较长时间的化学作用便生成碱金属的硫酸盐等复合物。熔化或半熔化状态的碱金属硫酸盐复合会与再热器和过热器的合金钢会发生强烈的氧化反应,使壁厚减薄应力增大以致引起管子产生里蠕变管壁更薄最后导致应损坏而爆管。
材料(主要指金属)的高温腐蚀(high temperature corrosion)是金属在高温下与环境中的氧、硫、碳、氮等发生反应导致金属的变质或破坏的过程。
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... corrosion allowance 腐蚀允许量,容许腐蚀度,容许腐蚀量 corrosion at high temperature 高温腐蚀 corrosion at low temperature 低温腐蚀 ...
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...氧化;高温腐蚀;焊条药皮 [gap=854]Key words :rare earth oxides;high temperature oxidation;high temperature sulphuration;electrode covering ...
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At present, the high temperature corrosion of water wall has become a serious problem at power stations.
水冷壁高温腐蚀是目前电站锅炉面临的一个较为严重的问题。
参考来源 - 50MW机组锅炉高温腐蚀研究与治理At present , the high-temperature corrosion of water wall has become a serious problem at power stations.
水冷壁高温腐蚀是目前电站锅炉面临的一个较为严重的问题。
参考来源 - 解决电站锅炉水冷壁高温腐蚀问题的试验研究The influence of reverse tangent angle of a wind fan on the hot corrosion has been researched further by numerical simulation.
通过数值模拟的方法,对炉内一次风反切角度对炉内高温腐蚀的影响做了进一步的研究。
参考来源 - 川渝地区国产670t/h锅炉高温腐蚀研究·2,447,543篇论文数据,部分数据来源于NoteExpress
利用自制装置做了非晶的水蒸气腐蚀和高温腐蚀实验。
Experiments of steam corrosion and high temperature corrosion have been done using a self-made device.
采用高温熔盐灼烧法研究t 2钛合金高温腐蚀动力学及腐蚀行为。
High temperature corrosion kinetics and corrosion behavior of T2 Titanium alloy were studied by oxidizing in melting salt.
硬面楔塞阀可用于高温腐蚀或侵蚀蒸汽和油,或者石油蒸汽应用领域。
Wedgeplug valves with hard facings are recommended for high temperature corrosive and erosive steam and oil or oil vapor services.
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