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镀锌层退火工艺指的是镀锌带钢离开镀锌锅和镀层厚度控制系统后立即进行再加热,以便使锌铁合金化持续足够长的时间,从而使铁扩散到锌和整个镀层表面。 镀层将因此从纯锌变为均匀的锌—铁合金,这种合金为以后的加工提供了极好的特
Galvannealing The annealing process refers to the galvanizing strip being reheated as soon as it leaves the galvanizing pot and the coating thickness control system to allow the zinc-iron alloying for a sufficiently long time to allow diffusion of the iron to the zinc and the entire coating surface. The coating will therefore change from pure zinc to a uniform zinc-iron alloy that provides excellent properties for later processing