Vim lub plasticization ntawm hluav taws xob, lub cev muaj zog, thiab cov khoom siv tsheb, cov kev xav tau siab dua yog muab tso rau ntawm nylon kev ua tau zoo thiab kub ua haujlwm. Qhov no qhib lub prelude rau kev tshawb fawb thiab kev loj hlob thiab kev siv ntawm high-kub nylon.
High-flow iav fiber reinforced high-temperature nylon PPA yog ib qho ntawm ntau hom tshiab uas tau nyiam ntau yam, thiab nws kuj yog ib qho ntawm cov khoom siv ceev tshaj plaws thiab cov nqi zoo tshaj plaws. Cov iav fiber reinforced kub nylon composite khoom raws li kub nylon PPA yog ib qho yooj yim los tsim high precision, kub resistant thiab siab zog khoom. Tshwj xeeb tshaj yog rau automotive engine peripheral khoom, uas yuav tsum tau tiv nrog nce stringent kev laus yuav tsum tau, high-kub nylon tau maj mam ua qhov zoo tshaj plaws kev xaiv rau automotive engine peripheral cov ntaub ntawv. Dab tsi yogtshwj xeebtxog kub nylon?
1, Zoo heev mechanical zog
Piv nrog rau cov tsoos aliphatic nylon (PA6 / PA66), qhov kub nylon nylon muaj cov txiaj ntsig zoo, uas yog qhov tseem ceeb ntawm cov khoom siv tshuab thiab nws cov khoom siv hluav taws xob. Piv nrog rau cov cuab yeej siv zog yooj yim, kub nylon muaj tib lub iav fiber ntau cov ntsiab lus ntawm qhov chaw. Nws yog 20% siab dua li cov tsoos aliphatic nylon, uas tuaj yeem muab kev daws teeb meem ntau dua rau lub tsheb.
Automotive thermostatic vaj tse ua los ntawm kub nylon.
2, Ultra-siab kub aging kev ua tau zoo
Nyob rau hauv qhov chaw ntawm lub thermal deformation kub ntawm 1.82MPa, qhov kub nylon 30% iav fiber reinforced tuaj yeem ncav cuag 280 ° C, thaum cov tsoos aliphatic PA66 30% GF yog li 255 ° C. Thaum cov khoom yuav tsum tau nce mus rau 200 ° C, nws yog ib qho nyuaj rau cov tsoos aliphatic nylons kom tau raws li cov khoom yuav tsum tau, tshwj xeeb tshaj yog lub cav peripheral cov khoom tau nyob rau hauv ib tug kub thiab kub ntev. Nyob rau hauv ib qho chaw ntub dej, thiab nws yuav tsum tiv taus corrosion ntawm mechanical roj.
3, Zoo heev dimensional stability
Cov dej nqus dej ntawm aliphatic nylon yog qhov siab, thiab qhov nqus dej txaus tuaj yeem ncav cuag 5%, uas ua rau cov khoom lag luam qis qis, uas yog qhov tsis zoo rau qee cov khoom lag luam siab. Qhov kev faib ua feem ntawm cov pab pawg amide nyob rau hauv kub nylon yog txo, cov dej nqus tus nqi kuj yog ib nrab ntawm cov zoo tib yam aliphatic nylon, thiab qhov seem stability yog zoo dua.
4, Cov tshuaj tiv thaiv zoo heev
Txij li cov khoom peripheral ntawm lub cav tsheb feem ntau nyob rau hauv kev sib cuag nrog cov tshuaj, cov kev xav tau siab dua yog muab tso rau ntawm cov khoom siv tshuaj lom neeg, tshwj xeeb tshaj yog cov corrosiveness ntawm roj av, tub yees thiab lwm yam tshuaj muaj txiaj ntsig zoo rau aliphatic polyamide, thaum kub siab Cov tshuaj tshwj xeeb. cov qauv ntawm nylon ua rau qhov tsis txaus, yog li cov tsos ntawm high-kub nylon tau tsa qhov chaw siv ntawm lub cav mus rau theem tshiab.
Automotive lub tog raj kheej lub taub hau npog ua los ntawm kub nylon.
Automotive kev lag luam kev siv
Txij li thaum PPA tuaj yeem muab cov cua kub sib txawv ntawm ntau dua 270 ° C, nws yog ib qho zoo tshaj plaws engineering yas rau cov khoom siv hluav taws xob tiv thaiv hluav taws xob hauv tsheb, tshuab, thiab hluav taws xob / hluav taws xob kev lag luam. Nyob rau tib lub sijhawm, PPA kuj yog qhov zoo tagnrho rau qhov chaw uas yuav tsum muaj kev ncaj ncees ntawm cov txheej txheem ntawm lub sijhawm luv luv.
Automotive hood ua los ntawm kub nylon
Nyob rau tib lub sijhawm, plasticization ntawm cov hlau qhov chaw xws li cov roj siv hluav taws xob, cov tshuab hluav taws xob, thiab cov tshuab cua txias nyob ze ntawm lub cav tau hloov pauv los ntawm cov thermosetting resins rau kev rov ua dua tshiab, thiab cov kev xav tau ntawm cov khoom siv yog nruj dua. Lub tshav kub tsis kam, ua haujlwm ntev, thiab tshuaj lom neeg ua haujlwm ntawm lub hom phiaj dav dav ntawm engineering plastics yav dhau los tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua.
Tsis tas li ntawd, lub siab kub nylon series tswj qhov zoo-paub zoo ntawm cov yas, uas yog yooj yim ntawm kev ua, trimming, yooj yim ntawm free tsim ntawm complex functionally integrated qhov chaw, thiab txo qhov hnyav thiab suab nrov thiab corrosion kuj.
Txij li thaum kub nylon tuaj yeem tiv taus lub zog siab, siab kub thiab lwm qhov chaw hnyav, nws tsim nyog rau engine thaj chaw (xws li lub cav npog, keyboards thiab connectors) thiab cov tshuab kis tau tus mob (xws li cov kabmob cab), cua tshuab (xws li lub tshuab cua tso pa tawm) thiab cov khoom siv cua nkag.
Txawm li cas los xij, cov khoom zoo ntawm cov nylon kub kub tuaj yeem coj tau ntau yam txiaj ntsig rau cov neeg siv, thiab thaum hloov los ntawm PA6, PA66 lossis PET / PBT cov ntaub ntawv rau PPA, tsis tas yuav hloov pwm, thiab lwm yam, yog li nws tsim nyog rau ntau yam kev siv. yuav tsum tau kub kub kuj. Muaj kev cia siab dav.
Post lub sij hawm: 18-08-22