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FOERFARANDE Foer ATT FOERHINDRA UPPKOMST AV ZINKAONGA VID VARMDOPPFOERFARANDE.
FOERFARANDE Foer ATT FOERHINDRA UPPKOMST AV ZINKAONGA VID VARMDOPPFOERFARANDE.
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机译:程序为了防止在热浸礼程序中发生辛卡贡加。
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摘要
A process for suppressing zinc vapor in the snout of a continuous line for hot dip coating one side or both sides of a ferrous base metal strip with a molten zinc or zinc based alloy by maintaining the atmosphere within the snout to include about 1-8% hydrogen by volume and about 300 ppm to 4500 ppm water vapor with the balance being one or more inert gases, such as nitrogen. The atmosphere has a hydrogen/water vapor ratio of at least 4 to 1, or higher. This atmosphere is oxidizing to zinc vapor but non-oxidizing to the ferrous strip.
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