Screen Spline thiab Extrusion Groove Compatibility: Rub -Tshem Cov Lus Qhia
Screen spline tuav nyob rau hauv txhuas thav duab tshuab yog txhais los ntawm peb lub tshuab tsis muaj: elastomer durometer hardness (Shore A), spline - rau -groove compression ratio, thiab mesh rub - tawm quab yuam nyob rau hauv cua load (N / cm). Rau lub qhov rais screen spline lag luam wholesale daim ntaub ntawv, qhov system tsis ua hauj lwm feem ntau tshwm sim vim tsis txaus spline compression los yog zawj seem tsis sib haum es tsis yog mesh rupture.
Nyob rau hauv aluminium screen thav duab zawj B2B ntau lawm, kev ruaj ntseg ruaj khov yog siv tau ntawm rub - tawm ntawm 18-45 N / cm nyob ntawm cov khoom siv spline thiab zawj geometry.
1. EPDM vs PVC Spline: Durometer Hardness (Shore A) Sib piv
Kev xaiv cov khoom siv Spline txiav txim siab ntev - lub sij hawm tuav lub zog, kev teeb tsa tsis kam, thiab thermal aging stability.
Khoom siv Hardness Benchmark
| Spline Khoom | Shore Ib Hardness | Compression Set (%) | UV Resistance | Qhov kub thiab txias |
|---|---|---|---|---|
| PVC Spline (Standard) | 65–75 Nkoj A | 25–35% | Nruab nrab | -10℃rau 60 degree |
| PVC Spline (Txhim kho) | 75–85 NPE A | 20–30% | Nruab nrab -High | -15℃rau 70 degree |
| EPDM Spline (Standard) | 55–65 Nkoj A | 10–20% | Siab | -40℃rau 120 degree |
| EPDM Spline (Kev lag luam) | 65–75 Nkoj A | 8–15% | Siab heev | -50℃rau 150 degree |
Engineering Observations
EPDM nthuav tawm 30-50% qis compression teeb dua PVC nyob rau hauv ntev -lub sij hawm load
PVC muab ntau dua qhov kev sib txhuam kev sib txhuam, txo qhov kev sib tsoo
EPDM maintains elasticity after >10,000 thermal voj voog
PVC zoo li tawv tom qab UV raug tshaj 18-24 lub hlis
Rau cov ntug dej hiav txwv thiab siab UV ib puag ncig, EPDM feem ntau teev nyob rau hauv hwm qhov rais screen spline lag luam wholesale cov kev pab cuam.
2. Spline Diameter rau Groove Width Ratio suav
Spline tuav nyob ntawm kev tswj kev cuam tshuam haum ntawm elastomer txoj kab uas hla thiab txhuas extrusion zawj dav.
Standard Engineering Ratios
| Groove Dav (mm) | Txoj kab uas hla (mm) | Compression Ratio | Retention Level |
| 3.0mm ib | 3.2mm ib | 6–8% | Tsawg |
| 3.5mm ib | 4.0mm ib | 12–15% | Nruab nrab |
| 4.0mm ib | 4.5mm ib | 12–18% | Siab |
| 4.5mm ib | 5.0mm ib | 11–16% | Siab heev |
Formula Reference
Spline Compression Ratio (%) =
[
\\frac{Spline\\ Diameter - Groove\\ Width}{Groove Width} \\times 100
]
Engineering Thresholds
<8% compression: risk of spline creep under wind load
10-18% compression: zoo khaws cia ntau yam
20% compression: kev txhim kho kev puas tsuaj nce 25-40%
Groove Geometry Kev txiav txim siab
Internal groove vojvoog: 0.3-0.6 hli pom zoo
Deg roughness (Ra): 1.2-2.0 μm rau kev sib txhuam ruaj khov
Phab ntsa thickness: Ntau dua lossis sib npaug li 1.0 hli rau kev ruaj ntseg
Qhov tsis raug zawv zawg kam rau ua ua rau thaj chaw mesh slippage txawm tias spline txoj kab uas hla tau raug teev tseg.
Nruab nrab -Txoj Kev Ua Haujlwm Kev Sib Koom Tes
Nyob rau theem no, kev sib raug zoo ntawm spline specification thiab txhuas extrusion profile yuav tsum tau validated tiv thaiv ntau lawm kab kam rau ua thiab mesh retention yuav tsum.
Rau kev yuav khoom ntau ntawm cov txheej txheem txheej txheem:
► [kev muag khoom qhov rai qhov rais splines]
Standardizing spline-groove pairing txo cov kev sib dhos tsis lees paub txog li 35% nyob rau hauv siab - ntim fabrication ib puag ncig.
3. Mesh rub - Tawm Zog (N / cm) Nyob rau hauv qhov cua ncaj qha
Pull-tawm quab yuam txhais qhov tsis kam ntawm mesh- rau- ncej tuav nyob rau hauv cua load thiab mechanical stress.
Test Method Reference
Applied force direction: perpendicular to frame
Loading tus nqi: 50mm / min
Chav ntsuas: Newton per centimeter (N / cm)
Qauv dav: 100 mm
Retention Force Performance
| System Configuration | Hom Spline | Rub -Tawm Tawm (N/cm) | Cua Resistance Level |
| PVC + Standard Mesh | pvc 65 a | 18-25 N / cm | Tsawg |
| PVC + Reinforced Mesh | pvc75a ua | 25-32 N / cm | Nruab nrab |
| EPDM + Fiberglass Mesh | PEB 65A | 30-40 N / cm3 | Siab |
| EPDM + Siab -Tensile Mesh | PEB 75A | 38-45 N / cm | Siab heev |
Cua Load Correlation
| Cua Siab (Pa) | Sib npaug Pull Stress | Failure Risk |
| 300-500 hli | 15-22 N / cm | Tsawg |
| 500-800 Ib | 22-30 N / cm | Nruab nrab |
| 800-1200 Nws | 30-40 N / cm3 | Siab |
| >1200 Peb | >40 N/cm | Tseem ceeb |
Hom Failure
Progressive spline creep nyob rau hauv sustained load
Mesh slippage ntawm kaum vojvoog cov ntsiab lus
Groove phab ntsa deformation nyob rau hauv rov cycling
Poob ntawm compression teeb hauv PVC hauv qab UV raug
Fiberglass mesh nrog 18 × 16 ntom feem ntau tuav ruaj khov nyob rau hauv 30-40 N / cm systems.
4. Roller Insertion Efficiency nyob rau hauv phau ntawv vs. Automated Assembly
Spline insertion efficiency ncaj qha cuam tshuam rau kev tsim khoom hauv aluminium screen thav duab zawj B2B manufacturing.
Assembly Efficiency Benchmark
| Txoj kev sib dhos | Insertion Ceev | Tus nqi yuam kev | Kev Xav Tau Kev Ua Haujlwm |
| Phau Ntawv Roller Tool | 2-3 m / min | 3–6% | Siab |
| Semi-Cov cuab yeej tsis siv neeg | 5-8 m / min | 2–3% | Nruab nrab |
| Automated Spline Insertion Kab | 10-15m / min | <1.5% | Tsawg |
Kev soj ntsuam ua haujlwm
Kev tuav phau ntawv ua rau cov cheeb tsam tsis sib xws (± 15% variation)
Cov tshuab tsis siv neeg tswj hwm ± 5% compression sib xws thoob plaws thav duab
Tsis sib haum spline nro nce ncej- sib dhos mesh so kom txog li 20%
Ntau Yam Tsis Tau
Kev xaiv txoj kab uas hla tsis raug: 8-12% tsis lees paub
Groove tolerance sib txawv: 5-9% tsis lees paub
Tus neeg teb xov tooj tsis sib xws: 3-7% variation hauv cov zis zoo
Automation dhau los ua kev lag luam zoo tshaj 25,000-40,000 ntas / hli ntau lawm ntim.
Manufacturing System Integration Notes
Kev xaiv Spline tsis yog ib qho kev txiav txim siab cais tawm. Nws cuam tshuam ncaj qha rau:
Mesh tuav kev cia siab
Ncej kev ncaj ncees
Cua load tau ntawv pov thawj
Installation lub sij hawm ua hauj lwm
Ntev - lub sij hawm lav tsis ua hauj lwm tus nqi
OEM cov kev pab cuam feem ntau standardize:
EPDM 65-75 Ntug Dej A rau cov txheej txheem hwm
PVC 70–80 Shore A rau tus nqi- cov haujlwm tseem ceeb
Compression ratio 10-18% rau tag nrho cov txhuas extrusion profiles
3 Fabrication Line FAQs
Dab tsi spline hardness yog pom zoo rau txhuas screen thav duab zawj systems nyob rau hauv ntug dej hiav txwv cheeb tsam?
EPDM 65-75 Shore A raug pom zoo vim muaj UV tsis kam, qis compression teeb (8-15%), thiab ruaj khov nyob rau hauv 800-1200 Pa cua load tej yam kev mob.
Yuav tsum compression ntau npaum li cas ntawm spline thiab zawj kom ruaj khov mesh tuav?
Qhov zoo tshaj plaws compression piv yog 10-18%. Hauv qab 8% nce rub- tawm kev pheej hmoo; saum toj no 20% nce installation puas thiab zawj deformation probability.
PVC spline puas tuaj yeem siv rau siab - cua daim ntawv thov?
PVC spline tuaj yeem siv tau txog li 500-800 Pa cua thauj thaj chaw, tab sis EPDM yuav tsum muaj rau cua siab dua lossis ntev - lub sij hawm UV raug ib puag ncig.
