Permukaan conduit PVC fleksibel kasar: diagnosis line sebelum mengganti compound
Permukaan conduit PVC fleksibel yang kusam atau kasar adalah gejala yang perlu direkam sebelum mengganti material.
Beri nama pola
Bedakan garis die kontinu, kulit jeruk, partikel menonjol, pit dan gelembung; foto kedua permukaan dengan skala dan catat arah, lokasi, waktu serta lot.
Pertahankan baseline
Simpan lot, kemasan, color/regrind, die, screen, catatan line, pendinginan dan puller. Setting panduan lain bukan resep umum.
Periksa menurut cabang
Mark tetap pada die mulai dari tooling; gelombang mengikuti output dari feed, screw, pressure dan puller; partikel/pit dari material, kontaminasi dan filtrasi; gelembung dari kelembapan, volatil dan riwayat panas.
Bandingkan satu variabel
Nilai satu variabel dengan area dan metode penerimaan yang sama. Jika cacat mengikuti lot setelah line/tooling dikecualikan, simpan sampel dan eskalasi ke pemasok atau lab.
Input trial
Kirim sampel/drawing, acuan permukaan, foto, lot, tooling, catatan line, jumlah, tujuan, standar dan metode uji.
Diagnostic and escalation matrix
| Observation / decision | Evidence to keep | First low-risk check | Escalate when |
|---|---|---|---|
| Fixed line or one die location | Position, direction, die/tooling ID | Inspect flow path, die land, adapter, cleaning and wear record | It persists in a controlled run: equipment/tooling review |
| Waves with output or haul-off variation | Actual output, pressure, feed, screw and puller record | Compare feed, output and puller stability to a good run | Recurring instability or safety concern: equipment review |
| Particles, gels, pits or bubbles | Lot, packing, colour/regrind, filtration and retained samples | Verify identity, contamination, filtration and moisture/volatile record | It follows a lot or needs standard judgement: supplier/lab comparison |
Kirim RFQ
Kirim data conduit dan trial untuk menyelaraskan brief sampel terkontrol sebelum penawaran.
Kirim RFQTechnical basis and further reading
- Alphagary, PVC Extrusion Processing GuideUse these references to structure inspection and measurement; confirm the actual conduit under the agreed method and condition.
- Alphagary, Processing GuidelinesUse these references to structure inspection and measurement; confirm the actual conduit under the agreed method and condition.
- Yamaguchi (2001), Flow instability in capillary extrusion of plasticized PVCUse these references to structure inspection and measurement; confirm the actual conduit under the agreed method and condition.
- GEON, Rigid Vinyl Profiles Extrusion GuideUse these references to structure inspection and measurement; confirm the actual conduit under the agreed method and condition.