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lishengyin银虫 (小有名气)
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[求助]
corrosiion
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| Corrosion of iron is inhibited by coating it with numerous substances, such as paint, an aluminum powder gilt, tin, or organic tarry substances or by galvanizing iron with zinc. Alloying iron with metals such as nickel or chromium yields a less corrosive steel. "Cathodic protection" of iron for lessened corrosion is also practiced. For some pipelines and standpipes zinc or magnesium rods in the ground with a wire connecting them to an iron object have the following effect: with soil moisture acting as an electrolyte for a Fe — Zn couple the Fe is lessened in its tendency to become Fe2+. It acts as a cathode rather than an anode. |
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wlh130392950
铜虫 (初入文坛)
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phu_grassman: 金币+2, thanks 2012-11-26 11:35:05
Carena: 金币+5, 翻译EPI+1, 代发金币 2012-11-26 14:41:01
phu_grassman: 金币+2, thanks 2012-11-26 11:35:05
Carena: 金币+5, 翻译EPI+1, 代发金币 2012-11-26 14:41:01
| 抑制铁的腐蚀是通过对它添加涂层物质，如涂料，一种铝粉末的镀金，镀锡，或有机焦油状物质，或对铁进行电镀锌。利用镍或铬对铁进行合金化处理能产生不锈钢。为减少腐蚀，铁的“阴极保护”法也被应用。对于一些埋在地下的锌制管道和竖管或镁棒，将它们利用导线与铁相连具有以下的效果：通过土壤的水分形成Fe — Zn的电解液，Fe有转化为Fe2 +的趋势而减少。它是作为阴极，而不是阳极。 |
lishengyin2楼2012-11-26 10:48:25
lishengyin
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3楼2012-11-26 11:36:15
wlh130392950
铜虫 (初入文坛)
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谢谢。。。我也不专业 呵呵 自己理解着翻译的 多交流 4楼2012-11-26 12:25:01
