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砂锅为什么放在木头上会炸

更新时间: 2020-10-12 00:00:00     

因为木头是热的不良导体,当热砂锅放到木头上之后,与木头接触的砂锅部分热量散发不畅,造成膨胀不均,砂锅会因冷却不均匀而开裂或炸。热的砂锅遇上冷的木板会产生锅底温度骤变,从而导致锅底冷缩炸裂,刚刚用完的热砂锅,最好放在铁架上。砂锅里面热,外面接触到吸热厉害的材料上会导致砂锅外层迅速降温,收缩而裂开,因为砂锅质地松软,同样木头也是如此,当砂锅加热后放在木板上,导致散热不均匀,所以就会发生开裂。

关键词: 为什么 放在 木头 上会

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