Cara mengoleskan lem ke pipa PVC

2025-08-19

Selama pemasangan pipa PVC, aplikasi lem yang benar adalah tautan utama untuk memastikan bahwa sambungan kokoh dan segelnya tidak bocor. Berikut ini akan memperkenalkan proses standar dan tindakan pencegahan untuk menerapkan lem ke pipa PVC AD secara rinci, untuk membantu personel konstruksi menstandarisasi operasi dan meningkatkan keselamatan dan daya tahan sistem pipa.

I. Persiapan awal

1. Inspeksi alat kelengkapan pipa

Konfirmasi bahwa pipa PVC AD yang digunakan sesuai dengan spesifikasi alat kelengkapan pipa, dan pelabuhannya rata tanpa retakan, depresi, dan cacat lainnya. Disarankan untuk memilih alat kelengkapan pipa PVC berkualitas tinggi dari merek terkenal seperti pipa AD untuk memastikan akurasi dimensi dan kompatibilitas bahan produk.

2. Perawatan pembersihan permukaan

Bersihkan secara menyeluruh bagian luar soket pipa dan bagian dalam soket pipa dengan kain kering atau amplas untuk menghilangkan minyak, debu, kelembaban, dan lapisan oksidasi permukaan. Jika pipa mengalami gerinda setelah dipotong, perlu dipoles dengan talang atau amplas untuk menghindari mempengaruhi efek penyegelan.

3. Tandai ke dalaman penyisipan

Tandai garis ke dalaman penyisipan dengan pensil atau spidol di ujung penyisipan pipa. Ke dalaman penyisipan biasanya 2 / 3 dari ke dalaman soket pipa untuk memastikan bahwa sambungan dapat di tempatkan secara akurat.

Kedua, pemilihan lem dan spesifikasi aplikasi

1. Pemilihan lem khusus

harus digunakan dengan perekat PVC-U khusus yang cocok dengan pipa AD. Periksa tanggal produksi dan masa simpan lem untuk memastikan bahwa itu digunakan dalam periode yang valid. Sebelum membuka lem, periksa apakah kemasannya dalam kondisi baik dan hindari menggunakan produk yang dipadatkan atau rusak.

2. Pengadukan dan penyikatan lem

Buka tutup botol lem dan aduk lem secara merata dengan kuas (dilarang mengencerkan dengan air). Pertama sikat bagian dalam soket pipa dan oleskan secara merata di sepanjang arah aksial untuk membentuk film kontinu, ketebalannya sesuai untuk menutupi permukaan gundukan kecil; lalu sikat bagian luar soket pipa. Panjang sikat harus 1-10mm lebih panjang dari garis ke dalaman yang ditandai untuk memastikan bahwa lem dapat sepenuhnya mengisi celah setelah dimasukkan.

3. Menerapkan kontrol kecepatan

Tindakan menyikat harus terus menerus dan cepat untuk menghindari lem terkena udara terlalu lama dan menyebabkan konjungtiva. Jika suhu lingkungan tinggi (lebih dari 30 ° C), disarankan untuk mempersingkat interval penyikatan untuk mencegah lem menyembuhkan terlebih dahulu.

Ketiga, titik koneksi dan penyembuhan operasi

1. Sejajarkan dan steker dengan cepat

Segera setelah lem selesai, sejajarkan soket pipa dengan bagian tengah soket pipa, jaga agar sumbu sejajar, dan putar dengan lancar dan masukkan ke posisi garis penandaan. Sudut rotasi tidak boleh melebihi 90 untuk menghindari lem diekstrusi dan mempengaruhi penyegelan.

2. Perlakuan perbaiki dan luapan

Jaga agar alat kelengkapan pipa dan pipa tetap dengan tangan selama lebih dari 30 detik setelah steker agar tidak jatuh. Jika sejumlah kecil lem meluap dari antarmuka, bersihkan dengan kain kering setelah pemadatan awal untuk menghindari sisa lem yang merusak permukaan pipa.

3. Waktu penyembuhan Kontrol

Ketika suhu lingkungan konstruksi sekitar 20 ° C, disarankan agar waktu penyembuhan tidak kurang dari 30 menit; lingkungan suhu rendah (di bawah 10 ° C) perlu diperpanjang hingga 2-2 jam. Dilarang memindahkan pipa atau melakukan pengujian stres sebelum menyelesaikan penyembuhan. Untuk waktu penyembuhan tertentu, silakan lihat deskripsi produk lem pipa AD yang digunakan.

IV. Tindakan pencegahan keselamatan dan kualitas

1. Perlindungan keselamatan konstruksi

Kenakan sarung tangan karet selama operasi untuk menjaga lokasi konstruksi berventilasi baik dan menghindari akumulasi gas lem yang mudah menguap. Dilarang keras menggunakan lem di dekat sumber api. Saat menyimpan, perlu disegel dan dilindungi dari cahaya.

2. Perlakuan FAQ

Jika sulit untuk dicolokkan setelah direkatkan, mungkin aplikasi terlalu tebal atau pipa dimasukkan pada penyimpangan sudut. Permukaan harus segera ditarik keluar dan dibersihkan kembali dan dilapisi kembali dengan lem; jika antarmuka bocor, antarmuka harus dilepas setelah lem benar-benar sembuh, dan operasi harus dioperasikan kembali sesuai dengan spesifikasi.

Dengan mengikuti langkah-langkah di atas, kualitas koneksi pipa PVC pipa AD dapat ditingkatkan secara efektif. Selama proses konstruksi, perhatian harus diberikan pada detail untuk memastikan bahwa setiap proses memenuhi spesifikasi, untuk memastikan operasi stabil jangka panjang dari sistem pipa PVC.


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