Hauv qab - hood automotive ib puag ncig xav tau cov ntaub ntawv uas tuaj yeem tiv taus kev ntxhov siab ntawm cov neeg kho tshuab siab, kev co tsis tu ncua, thiab ua haujlwm siab. Keeb kwm, luv luv iav fiber reinforced polyamide (PA6-GF30 los yog Nylon 6 GF30) yog lub neej ntawd specification rau radiator txias kiv cua thiab shrouds. Txawm li cas los xij, polyamide yog hydrophilic heev vim yog pawg polar amide hauv nws cov pob txha polymer. Thaum raug cov av ib puag ncig siab-ib qho tshwm sim thaum lub caij ntuj sov hauv thaj chaw xws li Middle East-polyamide qhov chaw nqus dej noo, ua rau muaj kev puas tsuaj 40% txo qis hauv tensile modulus thiab qhov loj me ntawm qhov o.
Tus Qauv Zauv: 12mm Nruam iav Skeleton
Cov qauv luv luv- fiber ntau sib txuas (xws li PP GF30 lossis PA6 GF30) siv cov iav tawg feem ntau hauv qab 1 hli ntev. Thaum lub sij hawm txhaj tshuaj molding, cov luv luv shards taw qhia nyob rau hauv cov kev taw qhia ntws, tsim loj anisotropic shrinking (warpage) thiab tsis muaj zog txhua yam ciam teb.
Hauv qhov sib piv, LFT-G®pellets raug txiav mus rau ib qho ntev ntawm 12mm. Cov iav filaments khiav tsis tu ncua thoob plaws txhua qhov ntev ntawm cov pellet. Thaum molded, cov fibers ntev no tsim ib qho kev sib tshuam 3D reinforcing pob txha nyob rau hauv ib feem, faib txhua yam khoom sib npaug thiab tiv thaiv kev tawg.
Cov ntaub ntawv pov thawj: PP LGF30 vs. Traditional Compounds
Cov ntaub ntawv xov xwm hauv qab no piv rau LFT-G®PP-LGF30-NG03 tiv thaiv tus qauv luv luv- fiber ntau polyamide (PA6-GF30) nyob rau hauv qhuav thiab ntub dej (cua txias) xeev, qhia txog kev ruaj ntseg ntawm cov fiber ntau polypropylene ntev.
| Mechanical Properties (Tswj) | Test Standard | PP LGF30 (Nyob / ntub) | PA6 GF30 (Dry State) | PA6 GF30 (ntub / txias) |
|---|---|---|---|---|
| Qhov ceev (g / cm³) | TS EN ISO 1183 | 1.15 (tsis tu ncua) | 1.36 | 1.36 |
| Kev nqus dej (%) | ISO 62 | < 0.01% | 1.8% | 6.5% - 8.5% (Max Saturation) |
| Tensile zog (MPa) | TS EN ISO 527 | 115 | 175 | 100 (43% Poob) |
| Tensile Modulus (MPa) | TS EN ISO 527 | 7,200 (tsis tu ncua) | 9,500 | 5,500 (42% Poob) |
| Izod Impact (kJ / m²) | ISO 180 | 35.0 | 11.0 | 13.0 |
| Pwm Shrinkage Range (%) | TS EN ISO 294-4 | 0.15% - 0.30% (Isotropic) | 0.35% - 0.85% | 0.45% - 1.20% (Anisotropic Warp) |
Field Proven Case Study: Middle East Automotive Cooling Shroud Upgrade
Kev Sib Tw
Ib tier-1 automotive Cheebtsam muab khoom nyob rau hauv Middle East tau ntsib cov txheej txheem tsis ua hauj lwm ntev nrog lub radiator txias kiv cua shrouds. Cov khoom qub, molded siv tus qauv luv-fiber polyamide (PA6-GF30), absorbed ambient noo noo nyob rau hauv lub caij ntuj sov tsis tshua muaj humidity. Qhov kev nqus dej no txo cov khoom rigidity los ntawm ntau tshaj 40%, ua rau lub shroud warp thiab sag. Yog li ntawd, cov kiv cua tuaj yeem cuam tshuam nrog lub tsev nyob hauv tsev, ua rau muaj kev puas tsuaj rau lub cev muaj zog, cov dej xau, thiab cov nqi lav lav.
Kev daws
Pab pawg engineering xaivLFT-G®PP -LGF30-NG03(ib 30% ntev iav fiber reinforced polypropylene compound) raws li ib tug poob - nyob rau hauv hloov. Vim tias PP yog hydrophobic polyolefin, nws qhov ntsuas qhov nqus dej noo nyob ze -zero (<0.05%). The long glass fiber skeleton formed an internal interlocking structural matrix, preserving high rigidity, structural shape, and torsional stiffness under high thermal loads up to 120°C without any warping.
Cov txiaj ntsig
- Zero Warpage & Swelling:Cov khoom nqus dej noo poob qis dua 0.05%, tswj qhov ntsuas qhov pom.
- 15% Qhov hnyav:PP qhov qis qis (1.15 g / cm³ vs PA6's 1.36 g / cm³) tau pab txhawb lub tsheb sib zog.
- 25% Tus nqi txo:Lub sij hawm luv luv thiab kev tshem tawm lub zog- ua ntej ua ntej - ziab yuav tsum tau rau cov khoom siv nylon txiav cov nqi tsim khoom.
- Pov thawj Reliability:Zero teb tsis ua haujlwm tau sau tseg ntau dua 24 lub hlis ntawm kev pabcuam hauv Middle East suab puam huab cua huab cua.
Txhaj Moulding Guidelines rau LFT-G®PP LGF 30
Ua cov fiber ntau thermoplastics ntev yuav tsum muaj lub tshuab tshwj xeeb kom tsis txhob muaj fiber ntau degradation. Siab shear rog yuav tsum raug zam los tiv thaiv lub 3D fiber ntau network. Ua raws li peb txoj cai ua haujlwm tseem ceeb no rau kev ua haujlwm zoo tshaj plaws:
Screw xaiv
Siv qhov tsawg- compression txhaj ntsia hlau (L / D piv 18: 1 txog 22: 1) nrog qhov dav yam tsawg kawg nkaus. Tsis txhob siab -shear check rings kom khaws cia ntev fiber ntau.
Melt & Pwm Temp
Khaws qhov kub ntawm qhov kub ntawm 200 txog 230 degrees. Pwm kub yuav tsum tau khaws cia ntawm 40℃thiab 70℃kom ntseeg tau tias qhov zoo ntawm qhov chaw tiav thiab tsis tshua muaj kev ntxhov siab.
Low Back Pressure
Ua kom rov qab siab qis (0.5 txog 1.5 MPa) thiab txhaj tshuaj nrawm. Lub siab rov qab ntau dhau ua rau cov fibers, tig koj lub LFT compound rau hauv luv fiber ntau.
