PEパイプは回転できますか?

2025-08-19

PEパイプのインストールと建設では、ホットメルト接続は、パイプシステムの安全で安定した動作を確保するための重要なプロセスです。多くの建設労働者は、一般的な問題に遭遇します:ホットPEパイプ(つまり、ホットメルト接続)を回転させることができますか?プラスチックパイプの分野で豊富な経験を持つADパイプとして、ここではこの操作のポイントを詳細に分析します。

まず、PEパイプがホットメルト接続のさまざまな段階で「回転」する必要があることを明確にする必要があります。

ホットメルト接続が開始される前に、パイプとパイプ継手の準備段階では、接続するPEパイプの端面を整列させ、直線化して、軸が一致することを確認する必要がありますこのとき、最適な位置合わせ効果を得るために、チューブをチューブフィッティングの溶接面に完全に合わせ、位置ずれを避けるために、必要な小さな角度調整または回転を行うことができます。この段階でのわずかな回転は、その後の溶接品質に備えるために許可されますが、不必要な大きな回転は最小限に抑える必要があります。

正式な加熱段階に入ると、PEチューブの端がホットメルトダイに接続されて加熱されるとき、チューブまたはチューブフィッティングの回転は絶対に禁止されています。ADパイプラインのPEチューブには特定の溶融指数と熱安定性があり、加熱中に溶接面が均一に加熱され、均一な溶融リングが形成されるようにする必要があります。

加熱が完了したら、PEパイプを金型から外し、迅速にドッキングします。この「切り替え」プロセスでは、パイプの安定性を維持し、外力や自重による回転を避ける必要があります。ドッキング時には、軸方向に沿って滑らかかつ均一に圧力をかけ、2つの溶融端面を密着させる必要があります。このプロセスでも回転は許可されておらず、回転すると形成された溶融層がねじれたり変位したりして、溶接欠陥を引き起こす可能性があります。

ドッキングが完了したら、保圧冷却段階に入ります。全体の冷却プロセスの中で、PEパイプのインターフェイスは、安定した分子鎖構造を形成している、この時点でパイプや継手が完全に固定されていることを確認する必要があり、厳密に任意の形式の回転や移動を禁止しています。わずかな回転でも、冷却固化している溶接継手を破壊する可能性があり、インターフェイスの強度が低下し、配管システム全体の耐圧能力と耐用年数に影響を与えます。

ADパイプは、PEパイプのホットメルト接続品質が配管工事全体の品質に直接関係していることを思い出させます。仕様に厳密に従って操作し、「回転できるかどうか」の重要なノードを把握することは、溶接がしっかりしていて、システムが安全で耐久性操作規範について疑問がある場合は、AD Pipが提供する公式施工ガイドラインを参照するか、専門技術者に相談して、すべての溶接継手が基準に準拠していることを確認し、配管システムが長期使用で最適な性能を発揮できるようにすることをお勧めします。


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