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BuKe factory >> Design >> 印刷工藝覆膜如何控制溫度保持一致

印刷工藝覆膜如何控制溫度保持一致

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-10-16 | 399 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
印刷工藝覆膜如何控制溫度保持一致

印刷工藝覆膜如何控制溫度保持一致

為保證復合質量,必須使規範的覆膜溫度數據在工作全過程始終保持一致


①用電子式、水銀柱式溫度計等,測量加熱滾筒錶面不同位置的溫度,註意加熱滾筒錶面各部位溫度差和儀表顯示的溫度差。通過適度調整,控制實際溫度的下限、上限在規範數據內


②盡可能將加熱滾筒的電熱、空氣、加熱滾筒傳導結構,改造為電熱、導熱油、加熱滾筒傳導結構。依靠導熱油介質的特性,保持加熱滾筒溫度的恆定。


③合理設計、控制機速,保證復合材料在熱壓合工作界面有恰當的通過時間,在工作界面區域有效地吸收加熱滾筒傳導的熱能。


④盡可能將熱熔膠預塗薄膜與熱壓合機構的進入角調整為45°,增加熱熔膠預塗膜與加熱滾筒的接觸面積,延長熱傳導時間,保證熱熔膠體充分熔化。顯示膠體充分熔化的重要標志是透明度好,這是最直觀、最便捷的檢驗方法。

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印刷工藝覆膜如何控制溫度保持一致
印刷工藝覆膜如何控制溫度保持一致

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