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熱門關鍵詞：聚丙烯PP管塑料通風管 PP風管 PP管材 PP方管 PP阻燃管 PP通風管 PP管 PP成型管

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PVC塑料通風管的内部控制要求是什么？

作者：本藍環保編輯：本藍環保來源：未知 2021-09-11 17:22

PVC塑料通風管的内部控制要求是什么？

PVC塑料通風管應完***無損，澆口和溢流邊應修整平整，那麽其內控要求應包括哪些方面？

PVC塑料通風管

1.气泡方面，在烘箱合格的前提下，允许PVC塑料通風管有微小气泡，气泡长度不超过1.5mm，分布面积不超过管件外部面积的10%。颜色方面，符合标准要求，应基本一致，与管材颜色相匹配，不应有较***的颜色偏差。

2.凹陷方面，在烤箱合格的前提下，允許澆口對應的內壁有輕微凹陷。凹陷深度應在不影響管件使用和美觀的基礎上確定，不應超過壁厚的10%。

此外，PVC塑料通風管不应含有壁厚杂质。表面允许有小杂质，可视距离为0.5m时不可见；外壁不得有明显和过多的可见杂质，内壁可适当放宽要求，不影响使用的先进性。

上一篇：PVC塑料通風管的储存、运输和安装要求 下一篇：實驗室阻燃pps風管安裝操作便捷及暗裝牢固

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